Class: Trello::Card

Inherits:
BasicData show all
Includes:
HasActions
Defined in:
lib/trello/card.rb

Overview

A Card is a container that can house checklists and comments; it resides inside a List.

Constant Summary collapse

SYMBOL_TO_STRING =
{
  id: 'id',
  short_id: 'idShort',
  name: 'name',
  desc: 'desc',
  due: 'due',
  due_complete: 'dueComplete',
  closed: 'closed',
  url: 'url',
  short_url: 'shortUrl',
  board_id: 'idBoard',
  member_ids: 'idMembers',
  cover_image_id: 'idAttachmentCover',
  list_id: 'idList',
  pos: 'pos',
  last_activity_date: 'dateLastActivity',
  card_labels: 'idLabels',
  labels: 'labels',
  badges: 'badges',
  card_members: 'members',
  source_card_id: "idCardSource",
  source_card_properties: "keepFromSource"
}

Instance Attribute Summary collapse

Attributes inherited from BasicData

#client

Class Method Summary collapse

Instance Method Summary collapse

Methods included from HasActions

#actions

Methods inherited from BasicData

#==, client, #hash, many, one, parse, parse_many, path_name, #refresh!, register_attributes, save

Methods included from JsonUtils

included

Constructor Details

#initialize(fields = {}) ⇒ Card

Returns a new instance of Card.


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# File 'lib/trello/card.rb', line 183

def initialize(fields = {})
  initialize_fields(fields)
end

Instance Attribute Details

#badgesHash (readonly)

Returns:


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# File 'lib/trello/card.rb', line 45

class Card < BasicData
  register_attributes :id, :short_id, :name, :desc, :due, :due_complete, :closed, :url, :short_url,
    :board_id, :member_ids, :list_id, :pos, :last_activity_date, :labels, :card_labels,
    :cover_image_id, :badges, :card_members, :source_card_id, :source_card_properties,
    readonly: [ :id, :short_id, :url, :short_url, :last_activity_date, :badges, :card_members ]
  validates_presence_of :id, :name, :list_id
  validates_length_of   :name, in: 1..16384
  validates_length_of   :desc, in: 0..16384

  include HasActions

  SYMBOL_TO_STRING = {
    id: 'id',
    short_id: 'idShort',
    name: 'name',
    desc: 'desc',
    due: 'due',
    due_complete: 'dueComplete',
    closed: 'closed',
    url: 'url',
    short_url: 'shortUrl',
    board_id: 'idBoard',
    member_ids: 'idMembers',
    cover_image_id: 'idAttachmentCover',
    list_id: 'idList',
    pos: 'pos',
    last_activity_date: 'dateLastActivity',
    card_labels: 'idLabels',
    labels: 'labels',
    badges: 'badges',
    card_members: 'members',
    source_card_id: "idCardSource",
    source_card_properties: "keepFromSource"
  }

  class << self
    # Find a specific card by its id.
    #
    # @raise [Trello::Error] if the card could not be found.
    #
    # @return [Trello::Card]
    def find(id, params = {})
      client.find(:card, id, params)
    end

    # Create a new card and save it on Trello.
    #
    # If using source_card_id to duplicate a card, make sure to save
    # the source card to Trello before calling this method to assure
    # the correct data is used in the duplication.
    #
    # @param [Hash] options
    # @option options [String] :name The name of the new card.
    # @option options [String] :list_id ID of the list that the card should
    #     be added to.
    # @option options [String] :desc A string with a
    #     length from 0 to 16384.
    # @option options [String] :member_ids A comma-separated list of
    #     objectIds (24-character hex strings).
    # @option options [String] :card_labels A comma-separated list of
    #     objectIds (24-character hex strings).
    # @option options [Date] :due A date, or `nil`.
    # @option options [String] :pos A position. `"top"`, `"bottom"`, or a
    #     positive number. Defaults to `"bottom"`.
    # @option options [String] :source_card_id ID of the card to copy
    # @option options [String] :source_card_properties A single, or array of,
    #     string properties to copy from source card.
    #     `"all"`, `"checklists"`, `"due"`, `"members"`, or `nil`.
    #     Defaults to `"all"`.
    #
    # @raise [Trello::Error] if the card could not be created.
    #
    # @return [Trello::Card]
    def create(options)
      client.create(:card,
        'name' => options[:name],
        'idList' => options[:list_id],
        'desc'   => options[:desc],
        'idMembers' => options[:member_ids],
        'idLabels' => options[:card_labels],
        'due' => options[:due],
        'due_complete' => options[:due_complete] || false,
        'pos' => options[:pos],
        'idCardSource' => options[:source_card_id],
        'keepFromSource' => options.key?(:source_card_properties) ? options[:source_card_properties] : 'all'
      )
    end
  end

  # Update the fields of a card.
  #
  # Supply a hash of string keyed data retrieved from the Trello API representing
  # a card.
  #
  # Note that this this method does not save anything new to the Trello API,
  # it just assigns the input attributes to your local object. If you use
  # this method to assign attributes, call `save` or `update!` afterwards if
  # you want to persist your changes to Trello.
  #
  # @param [Hash] fields
  # @option fields [String] :id
  # @option fields [String] :short_id
  # @option fields [String] :name The new name of the card.
  # @option fields [String] :desc A string with a length from 0 to
  #     16384.
  # @option fields [Date] :due A date, or `nil`.
  # @option fields [Boolean] :due_complete
  # @option fields [Boolean] :closed
  # @option fields [String] :url
  # @option fields [String] :short_url
  # @option fields [String] :board_id
  # @option fields [String] :member_ids A comma-separated list of objectIds
  #     (24-character hex strings).
  # @option fields [String] :pos A position. `"top"`, `"bottom"`, or a
  #     positive number. Defaults to `"bottom"`.
  # @option fields [Array]  :labels An Array of Trello::Label objects
  #     derived from the JSON response
  # @option fields [String] :card_labels A comma-separated list of
  #     objectIds (24-character hex strings).
  # @option fields [Object] :cover_image_id
  # @option fields [Object] :badges
  # @option fields [Object] :card_members
  # @option fields [String] :source_card_id
  # @option fields [Array]  :source_card_properties
  #
  # @return [Trello::Card] self
  def update_fields(fields)
    %i[
      name desc due due_complete closed
      board_id member_ids list_id pos
      card_labels cover_image_id
    ].each do |key|
      send("#{key}_will_change!") if fields_has_key?(fields, key)
    end

    initialize_fields(fields)
  end

  def initialize(fields = {})
    initialize_fields(fields)
  end

  # Returns a reference to the board this card is part of.
  one :board, path: :boards, using: :board_id

  # Returns a reference to the cover image attachment
  def cover_image(params = {})
    response = client.get("/cards/#{id}/attachments/#{cover_image_id}", params)
    CoverImage.from_response(response)
  end

  # Returns a list of checklists associated with the card.
  #
  # The options hash may have a filter key which can have its value set as any
  # of the following values:
  #    :filter => [ :none, :all ] # default :all
  many :checklists, filter: :all

  # Returns a list of plugins associated with the card
  many :plugin_data, path: "pluginData"

  # List of custom field values on the card, only the ones that have been set
  many :custom_field_items, path: 'customFieldItems'

  def check_item_states
    states = CheckItemState.from_response client.get("/cards/#{self.id}/checkItemStates")
    MultiAssociation.new(self, states).proxy
  end

  # Returns a reference to the list this card is currently in.
  one :list, path: :lists, using: :list_id

  # Returns a list of members who are assigned to this card.
  #
  # @return [Array<Trello::Member>]
  def members
    members = Member.from_response client.get("/cards/#{self.id}/members")
    MultiAssociation.new(self, members).proxy
  end

  # Returns a list of members who have upvoted this card
  # NOTE: this fetches a list each time it's called to avoid case where
  # card is voted (or vote is removed) after card is fetched. Optimizing
  # accuracy over network performance
  #
  # @return [Array<Trello::Member>]
  def voters
    Member.from_response client.get("/cards/#{id}/membersVoted")
  end

  # Saves a record.
  #
  # @raise [Trello::Error] if the card could not be saved
  #
  # @return [String] The JSON representation of the saved card returned by
  #     the Trello API.
  def save
    # If we have an id, just update our fields.
    return update! if id

    from_response client.post("/cards", {
      name:   name,
      desc:   desc,
      idList: list_id,
      idMembers: member_ids,
      idLabels: card_labels,
      pos: pos,
      due: due,
      dueComplete: due_complete,
      idCardSource: source_card_id,
      keepFromSource: source_card_properties
    })
  end

  # Update an existing record.
  #
  # Warning: this updates all fields using values already in memory. If
  # an external resource has updated these fields, you should refresh!
  # this object before making your changes, and before updating the record.
  #
  # @raise [Trello::Error] if the card could not be updated.
  #
  # @return [Trello::Card] updated self
  def update!
    @previously_changed = changes
    # extract only new values to build payload
    payload = Hash[changes.map { |key, values| [SYMBOL_TO_STRING[key.to_sym].to_sym, values[1]] }]

    response = client.put("/cards/#{id}", payload)
    updated_card = from_response(response)

    @changed_attributes.clear if @changed_attributes.respond_to?(:clear)
    changes_applied if respond_to?(:changes_applied)

    attributes[:id]                     = updated_card.id
    attributes[:short_id]               = updated_card.short_id
    attributes[:name]                   = updated_card.name
    attributes[:desc]                   = updated_card.desc
    attributes[:due]                    = updated_card.due
    attributes[:due_complete]           = updated_card.due_complete
    attributes[:closed]                 = updated_card.closed
    attributes[:url]                    = updated_card.url
    attributes[:short_url]              = updated_card.short_url
    attributes[:board_id]               = updated_card.board_id
    attributes[:member_ids]             = updated_card.member_ids
    attributes[:list_id]                = updated_card.list_id
    attributes[:pos]                    = updated_card.pos
    attributes[:labels]                 = updated_card.labels
    attributes[:card_labels]            = updated_card.card_labels
    attributes[:last_activity_date]     = updated_card.last_activity_date
    attributes[:cover_image_id]         = updated_card.cover_image_id
    attributes[:badges]                 = updated_card.badges
    attributes[:card_members]           = updated_card.card_members
    attributes[:source_card_id]         = updated_card.source_card_id
    attributes[:source_card_properties] = updated_card.source_card_properties

    self
  end

  # Delete this card
  #
  # @return [String] the JSON response from the Trello API
  def delete
    client.delete("/cards/#{id}")
  end

  # Check if the card is not active anymore.
  def closed?
    closed
  end

  # Close the card.
  #
  # This only marks your local copy card as closed. Use `close!` if you
  # want to close the card and persist the change to the Trello API.
  #
  # @return [Boolean] always returns true
  #
  # @return [String] The JSON representation of the closed card returned by
  #     the Trello API.
  def close
    self.closed = true
  end

  def close!
    close
    save
  end

  # Is the record valid?
  def valid?
    !(name && list_id).nil?
  end

  # Add a comment with the supplied text.
  def add_comment(text)
    client.post("/cards/#{id}/actions/comments", text: text)
  end

  # Add a checklist to this card
  def add_checklist(checklist, name: nil, position: nil)
    payload = { idChecklistSource: checklist.id }
    payload[:name] = name if name 
    payload[:pos] = position if position

    client.post("/cards/#{id}/checklists", payload)
  end

  # create a new checklist and add it to this card
  def create_new_checklist(name)
    client.post("/cards/#{id}/checklists", { name: name })
  end

  # Move this card to the given list
  def move_to_list(list)
    list_number = list.is_a?(String) ? list : list.id
    unless list_id == list_number
      client.put("/cards/#{id}/idList", {
        value: list_number
      })
    end
  end

  # Moves this card to the given list no matter which board it is on
  def move_to_list_on_any_board(list_id)
    list = List.find(list_id)
    if board.id == list.board_id
      move_to_list(list_id)
    else
      move_to_board(Board.find(list.board_id), list)
    end
  end

  # Move this card to the given board (and optional list on this board)
  def move_to_board(new_board, new_list = nil)
    unless board_id == new_board.id
      payload = { value: new_board.id }
      payload[:idList] = new_list.id if new_list
      client.put("/cards/#{id}/idBoard", payload)
    end
  end

  # Add a member to this card
  def add_member(member)
    client.post("/cards/#{id}/idMembers", {
      value: member.id
    })
  end

  # Remove a member from this card
  def remove_member(member)
    client.delete("/cards/#{id}/idMembers/#{member.id}")
  end

  # Current authenticated user upvotes a card
  def upvote
    begin
      client.post("/cards/#{id}/membersVoted", {
        value: me.id
      })
    rescue Trello::Error => e
      fail e unless e.message =~ /has already voted/i
    end

    self
  end

  # Recind upvote. Noop if authenticated user hasn't previously voted
  def remove_upvote
    begin
      client.delete("/cards/#{id}/membersVoted/#{me.id}")
    rescue Trello::Error => e
      fail e unless e.message =~ /has not voted/i
    end

    self
  end

  # Add a label
  def add_label(label)
    unless label.valid?
      errors.add(:label, "is not valid.")
      return Trello.logger.warn "Label is not valid." unless label.valid?
    end
    client.post("/cards/#{id}/idLabels", {value: label.id})
  end

  # Remove a label
  def remove_label(label)
    unless label.valid?
      errors.add(:label, "is not valid.")
      return Trello.logger.warn "Label is not valid." unless label.valid?
    end
    client.delete("/cards/#{id}/idLabels/#{label.id}")
  end

  # Add an attachment to this card
  def add_attachment(attachment, name = '')
    # Is it a file object or a string (url)?
    if attachment.respond_to?(:path) && attachment.respond_to?(:read)
      client.post("/cards/#{id}/attachments", {
          file: attachment,
          name: name
        })
    else
      client.post("/cards/#{id}/attachments", {
          url: attachment,
          name: name
        })
    end
  end

  # Retrieve a list of attachments
  def attachments
    attachments = Attachment.from_response client.get("/cards/#{id}/attachments")
    MultiAssociation.new(self, attachments).proxy
  end

  # Remove an attachment from this card
  def remove_attachment(attachment)
    client.delete("/cards/#{id}/attachments/#{attachment.id}")
  end

  # :nodoc:
  def request_prefix
    "/cards/#{id}"
  end

  # Retrieve a list of comments
  def comments
    comments = Comment.from_response client.get("/cards/#{id}/actions", filter: "commentCard")
  end

  # Find the creation date
  def created_at
    @created_at ||= Time.at(id[0..7].to_i(16)) rescue nil
  end

  private

  def me
    @me ||= Member.find(:me)
  end

  def fields_has_key?(fields, key)
    fields.key?(SYMBOL_TO_STRING[key]) || fields.key?(key)
  end

  def initialize_fields(fields)
    attributes[:id]                     = fields[SYMBOL_TO_STRING[:id]] || attributes[:id]
    attributes[:short_id]               = fields[SYMBOL_TO_STRING[:short_id]] || attributes[:short_id]
    attributes[:name]                   = fields[SYMBOL_TO_STRING[:name]] || fields[:name] || attributes[:name]
    attributes[:desc]                   = fields[SYMBOL_TO_STRING[:desc]] || fields[:desc] || attributes[:desc]
    attributes[:due]                    = Time.iso8601(fields[SYMBOL_TO_STRING[:due]]) rescue nil if fields.has_key?(SYMBOL_TO_STRING[:due])
    attributes[:due]                    = fields[:due] if fields.has_key?(:due)
    attributes[:due_complete]           = fields[SYMBOL_TO_STRING[:due_complete]] if fields.has_key?(SYMBOL_TO_STRING[:due_complete])
    attributes[:due_complete]           ||= false
    attributes[:closed]                 = fields[SYMBOL_TO_STRING[:closed]] if fields.has_key?(SYMBOL_TO_STRING[:closed])
    attributes[:url]                    = fields[SYMBOL_TO_STRING[:url]] || attributes[:url]
    attributes[:short_url]              = fields[SYMBOL_TO_STRING[:short_url]] || attributes[:short_url]
    attributes[:board_id]               = fields[SYMBOL_TO_STRING[:board_id]] || attributes[:board_id]
    attributes[:member_ids]             = fields[SYMBOL_TO_STRING[:member_ids]] || fields[:member_ids] || attributes[:member_ids]
    attributes[:list_id]                = fields[SYMBOL_TO_STRING[:list_id]] || fields[:list_id] || attributes[:list_id]
    attributes[:pos]                    = fields[SYMBOL_TO_STRING[:pos]] || fields[:pos] || attributes[:pos]
    attributes[:labels]                 = (fields[SYMBOL_TO_STRING[:labels]] || []).map { |lbl| Trello::Label.new(lbl) }.presence || attributes[:labels].presence || []
    attributes[:card_labels]            = fields[SYMBOL_TO_STRING[:card_labels]] || fields[:card_labels] || attributes[:card_labels]
    attributes[:last_activity_date]     = Time.iso8601(fields[SYMBOL_TO_STRING[:last_activity_date]]) rescue nil if fields.has_key?(SYMBOL_TO_STRING[:last_activity_date])
    attributes[:cover_image_id]         = fields[SYMBOL_TO_STRING[:cover_image_id]] || attributes[:cover_image_id]
    attributes[:badges]                 = fields[SYMBOL_TO_STRING[:badges]] || attributes[:badges]
    attributes[:card_members]           = fields[SYMBOL_TO_STRING[:card_members]] || attributes[:card_members]
    attributes[:source_card_id]         = fields[SYMBOL_TO_STRING[:source_card_id]] || fields[:source_card_id] || attributes[:source_card_id]
    attributes[:source_card_properties] = fields[SYMBOL_TO_STRING[:source_card_properties]] || fields[:source_card_properties] || attributes[:source_card_properties]
    self
  end

end

#board_idString

Returns A 24-character hex string.

Returns:

  • (String)

    A 24-character hex string


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# File 'lib/trello/card.rb', line 45

class Card < BasicData
  register_attributes :id, :short_id, :name, :desc, :due, :due_complete, :closed, :url, :short_url,
    :board_id, :member_ids, :list_id, :pos, :last_activity_date, :labels, :card_labels,
    :cover_image_id, :badges, :card_members, :source_card_id, :source_card_properties,
    readonly: [ :id, :short_id, :url, :short_url, :last_activity_date, :badges, :card_members ]
  validates_presence_of :id, :name, :list_id
  validates_length_of   :name, in: 1..16384
  validates_length_of   :desc, in: 0..16384

  include HasActions

  SYMBOL_TO_STRING = {
    id: 'id',
    short_id: 'idShort',
    name: 'name',
    desc: 'desc',
    due: 'due',
    due_complete: 'dueComplete',
    closed: 'closed',
    url: 'url',
    short_url: 'shortUrl',
    board_id: 'idBoard',
    member_ids: 'idMembers',
    cover_image_id: 'idAttachmentCover',
    list_id: 'idList',
    pos: 'pos',
    last_activity_date: 'dateLastActivity',
    card_labels: 'idLabels',
    labels: 'labels',
    badges: 'badges',
    card_members: 'members',
    source_card_id: "idCardSource",
    source_card_properties: "keepFromSource"
  }

  class << self
    # Find a specific card by its id.
    #
    # @raise [Trello::Error] if the card could not be found.
    #
    # @return [Trello::Card]
    def find(id, params = {})
      client.find(:card, id, params)
    end

    # Create a new card and save it on Trello.
    #
    # If using source_card_id to duplicate a card, make sure to save
    # the source card to Trello before calling this method to assure
    # the correct data is used in the duplication.
    #
    # @param [Hash] options
    # @option options [String] :name The name of the new card.
    # @option options [String] :list_id ID of the list that the card should
    #     be added to.
    # @option options [String] :desc A string with a
    #     length from 0 to 16384.
    # @option options [String] :member_ids A comma-separated list of
    #     objectIds (24-character hex strings).
    # @option options [String] :card_labels A comma-separated list of
    #     objectIds (24-character hex strings).
    # @option options [Date] :due A date, or `nil`.
    # @option options [String] :pos A position. `"top"`, `"bottom"`, or a
    #     positive number. Defaults to `"bottom"`.
    # @option options [String] :source_card_id ID of the card to copy
    # @option options [String] :source_card_properties A single, or array of,
    #     string properties to copy from source card.
    #     `"all"`, `"checklists"`, `"due"`, `"members"`, or `nil`.
    #     Defaults to `"all"`.
    #
    # @raise [Trello::Error] if the card could not be created.
    #
    # @return [Trello::Card]
    def create(options)
      client.create(:card,
        'name' => options[:name],
        'idList' => options[:list_id],
        'desc'   => options[:desc],
        'idMembers' => options[:member_ids],
        'idLabels' => options[:card_labels],
        'due' => options[:due],
        'due_complete' => options[:due_complete] || false,
        'pos' => options[:pos],
        'idCardSource' => options[:source_card_id],
        'keepFromSource' => options.key?(:source_card_properties) ? options[:source_card_properties] : 'all'
      )
    end
  end

  # Update the fields of a card.
  #
  # Supply a hash of string keyed data retrieved from the Trello API representing
  # a card.
  #
  # Note that this this method does not save anything new to the Trello API,
  # it just assigns the input attributes to your local object. If you use
  # this method to assign attributes, call `save` or `update!` afterwards if
  # you want to persist your changes to Trello.
  #
  # @param [Hash] fields
  # @option fields [String] :id
  # @option fields [String] :short_id
  # @option fields [String] :name The new name of the card.
  # @option fields [String] :desc A string with a length from 0 to
  #     16384.
  # @option fields [Date] :due A date, or `nil`.
  # @option fields [Boolean] :due_complete
  # @option fields [Boolean] :closed
  # @option fields [String] :url
  # @option fields [String] :short_url
  # @option fields [String] :board_id
  # @option fields [String] :member_ids A comma-separated list of objectIds
  #     (24-character hex strings).
  # @option fields [String] :pos A position. `"top"`, `"bottom"`, or a
  #     positive number. Defaults to `"bottom"`.
  # @option fields [Array]  :labels An Array of Trello::Label objects
  #     derived from the JSON response
  # @option fields [String] :card_labels A comma-separated list of
  #     objectIds (24-character hex strings).
  # @option fields [Object] :cover_image_id
  # @option fields [Object] :badges
  # @option fields [Object] :card_members
  # @option fields [String] :source_card_id
  # @option fields [Array]  :source_card_properties
  #
  # @return [Trello::Card] self
  def update_fields(fields)
    %i[
      name desc due due_complete closed
      board_id member_ids list_id pos
      card_labels cover_image_id
    ].each do |key|
      send("#{key}_will_change!") if fields_has_key?(fields, key)
    end

    initialize_fields(fields)
  end

  def initialize(fields = {})
    initialize_fields(fields)
  end

  # Returns a reference to the board this card is part of.
  one :board, path: :boards, using: :board_id

  # Returns a reference to the cover image attachment
  def cover_image(params = {})
    response = client.get("/cards/#{id}/attachments/#{cover_image_id}", params)
    CoverImage.from_response(response)
  end

  # Returns a list of checklists associated with the card.
  #
  # The options hash may have a filter key which can have its value set as any
  # of the following values:
  #    :filter => [ :none, :all ] # default :all
  many :checklists, filter: :all

  # Returns a list of plugins associated with the card
  many :plugin_data, path: "pluginData"

  # List of custom field values on the card, only the ones that have been set
  many :custom_field_items, path: 'customFieldItems'

  def check_item_states
    states = CheckItemState.from_response client.get("/cards/#{self.id}/checkItemStates")
    MultiAssociation.new(self, states).proxy
  end

  # Returns a reference to the list this card is currently in.
  one :list, path: :lists, using: :list_id

  # Returns a list of members who are assigned to this card.
  #
  # @return [Array<Trello::Member>]
  def members
    members = Member.from_response client.get("/cards/#{self.id}/members")
    MultiAssociation.new(self, members).proxy
  end

  # Returns a list of members who have upvoted this card
  # NOTE: this fetches a list each time it's called to avoid case where
  # card is voted (or vote is removed) after card is fetched. Optimizing
  # accuracy over network performance
  #
  # @return [Array<Trello::Member>]
  def voters
    Member.from_response client.get("/cards/#{id}/membersVoted")
  end

  # Saves a record.
  #
  # @raise [Trello::Error] if the card could not be saved
  #
  # @return [String] The JSON representation of the saved card returned by
  #     the Trello API.
  def save
    # If we have an id, just update our fields.
    return update! if id

    from_response client.post("/cards", {
      name:   name,
      desc:   desc,
      idList: list_id,
      idMembers: member_ids,
      idLabels: card_labels,
      pos: pos,
      due: due,
      dueComplete: due_complete,
      idCardSource: source_card_id,
      keepFromSource: source_card_properties
    })
  end

  # Update an existing record.
  #
  # Warning: this updates all fields using values already in memory. If
  # an external resource has updated these fields, you should refresh!
  # this object before making your changes, and before updating the record.
  #
  # @raise [Trello::Error] if the card could not be updated.
  #
  # @return [Trello::Card] updated self
  def update!
    @previously_changed = changes
    # extract only new values to build payload
    payload = Hash[changes.map { |key, values| [SYMBOL_TO_STRING[key.to_sym].to_sym, values[1]] }]

    response = client.put("/cards/#{id}", payload)
    updated_card = from_response(response)

    @changed_attributes.clear if @changed_attributes.respond_to?(:clear)
    changes_applied if respond_to?(:changes_applied)

    attributes[:id]                     = updated_card.id
    attributes[:short_id]               = updated_card.short_id
    attributes[:name]                   = updated_card.name
    attributes[:desc]                   = updated_card.desc
    attributes[:due]                    = updated_card.due
    attributes[:due_complete]           = updated_card.due_complete
    attributes[:closed]                 = updated_card.closed
    attributes[:url]                    = updated_card.url
    attributes[:short_url]              = updated_card.short_url
    attributes[:board_id]               = updated_card.board_id
    attributes[:member_ids]             = updated_card.member_ids
    attributes[:list_id]                = updated_card.list_id
    attributes[:pos]                    = updated_card.pos
    attributes[:labels]                 = updated_card.labels
    attributes[:card_labels]            = updated_card.card_labels
    attributes[:last_activity_date]     = updated_card.last_activity_date
    attributes[:cover_image_id]         = updated_card.cover_image_id
    attributes[:badges]                 = updated_card.badges
    attributes[:card_members]           = updated_card.card_members
    attributes[:source_card_id]         = updated_card.source_card_id
    attributes[:source_card_properties] = updated_card.source_card_properties

    self
  end

  # Delete this card
  #
  # @return [String] the JSON response from the Trello API
  def delete
    client.delete("/cards/#{id}")
  end

  # Check if the card is not active anymore.
  def closed?
    closed
  end

  # Close the card.
  #
  # This only marks your local copy card as closed. Use `close!` if you
  # want to close the card and persist the change to the Trello API.
  #
  # @return [Boolean] always returns true
  #
  # @return [String] The JSON representation of the closed card returned by
  #     the Trello API.
  def close
    self.closed = true
  end

  def close!
    close
    save
  end

  # Is the record valid?
  def valid?
    !(name && list_id).nil?
  end

  # Add a comment with the supplied text.
  def add_comment(text)
    client.post("/cards/#{id}/actions/comments", text: text)
  end

  # Add a checklist to this card
  def add_checklist(checklist, name: nil, position: nil)
    payload = { idChecklistSource: checklist.id }
    payload[:name] = name if name 
    payload[:pos] = position if position

    client.post("/cards/#{id}/checklists", payload)
  end

  # create a new checklist and add it to this card
  def create_new_checklist(name)
    client.post("/cards/#{id}/checklists", { name: name })
  end

  # Move this card to the given list
  def move_to_list(list)
    list_number = list.is_a?(String) ? list : list.id
    unless list_id == list_number
      client.put("/cards/#{id}/idList", {
        value: list_number
      })
    end
  end

  # Moves this card to the given list no matter which board it is on
  def move_to_list_on_any_board(list_id)
    list = List.find(list_id)
    if board.id == list.board_id
      move_to_list(list_id)
    else
      move_to_board(Board.find(list.board_id), list)
    end
  end

  # Move this card to the given board (and optional list on this board)
  def move_to_board(new_board, new_list = nil)
    unless board_id == new_board.id
      payload = { value: new_board.id }
      payload[:idList] = new_list.id if new_list
      client.put("/cards/#{id}/idBoard", payload)
    end
  end

  # Add a member to this card
  def add_member(member)
    client.post("/cards/#{id}/idMembers", {
      value: member.id
    })
  end

  # Remove a member from this card
  def remove_member(member)
    client.delete("/cards/#{id}/idMembers/#{member.id}")
  end

  # Current authenticated user upvotes a card
  def upvote
    begin
      client.post("/cards/#{id}/membersVoted", {
        value: me.id
      })
    rescue Trello::Error => e
      fail e unless e.message =~ /has already voted/i
    end

    self
  end

  # Recind upvote. Noop if authenticated user hasn't previously voted
  def remove_upvote
    begin
      client.delete("/cards/#{id}/membersVoted/#{me.id}")
    rescue Trello::Error => e
      fail e unless e.message =~ /has not voted/i
    end

    self
  end

  # Add a label
  def add_label(label)
    unless label.valid?
      errors.add(:label, "is not valid.")
      return Trello.logger.warn "Label is not valid." unless label.valid?
    end
    client.post("/cards/#{id}/idLabels", {value: label.id})
  end

  # Remove a label
  def remove_label(label)
    unless label.valid?
      errors.add(:label, "is not valid.")
      return Trello.logger.warn "Label is not valid." unless label.valid?
    end
    client.delete("/cards/#{id}/idLabels/#{label.id}")
  end

  # Add an attachment to this card
  def add_attachment(attachment, name = '')
    # Is it a file object or a string (url)?
    if attachment.respond_to?(:path) && attachment.respond_to?(:read)
      client.post("/cards/#{id}/attachments", {
          file: attachment,
          name: name
        })
    else
      client.post("/cards/#{id}/attachments", {
          url: attachment,
          name: name
        })
    end
  end

  # Retrieve a list of attachments
  def attachments
    attachments = Attachment.from_response client.get("/cards/#{id}/attachments")
    MultiAssociation.new(self, attachments).proxy
  end

  # Remove an attachment from this card
  def remove_attachment(attachment)
    client.delete("/cards/#{id}/attachments/#{attachment.id}")
  end

  # :nodoc:
  def request_prefix
    "/cards/#{id}"
  end

  # Retrieve a list of comments
  def comments
    comments = Comment.from_response client.get("/cards/#{id}/actions", filter: "commentCard")
  end

  # Find the creation date
  def created_at
    @created_at ||= Time.at(id[0..7].to_i(16)) rescue nil
  end

  private

  def me
    @me ||= Member.find(:me)
  end

  def fields_has_key?(fields, key)
    fields.key?(SYMBOL_TO_STRING[key]) || fields.key?(key)
  end

  def initialize_fields(fields)
    attributes[:id]                     = fields[SYMBOL_TO_STRING[:id]] || attributes[:id]
    attributes[:short_id]               = fields[SYMBOL_TO_STRING[:short_id]] || attributes[:short_id]
    attributes[:name]                   = fields[SYMBOL_TO_STRING[:name]] || fields[:name] || attributes[:name]
    attributes[:desc]                   = fields[SYMBOL_TO_STRING[:desc]] || fields[:desc] || attributes[:desc]
    attributes[:due]                    = Time.iso8601(fields[SYMBOL_TO_STRING[:due]]) rescue nil if fields.has_key?(SYMBOL_TO_STRING[:due])
    attributes[:due]                    = fields[:due] if fields.has_key?(:due)
    attributes[:due_complete]           = fields[SYMBOL_TO_STRING[:due_complete]] if fields.has_key?(SYMBOL_TO_STRING[:due_complete])
    attributes[:due_complete]           ||= false
    attributes[:closed]                 = fields[SYMBOL_TO_STRING[:closed]] if fields.has_key?(SYMBOL_TO_STRING[:closed])
    attributes[:url]                    = fields[SYMBOL_TO_STRING[:url]] || attributes[:url]
    attributes[:short_url]              = fields[SYMBOL_TO_STRING[:short_url]] || attributes[:short_url]
    attributes[:board_id]               = fields[SYMBOL_TO_STRING[:board_id]] || attributes[:board_id]
    attributes[:member_ids]             = fields[SYMBOL_TO_STRING[:member_ids]] || fields[:member_ids] || attributes[:member_ids]
    attributes[:list_id]                = fields[SYMBOL_TO_STRING[:list_id]] || fields[:list_id] || attributes[:list_id]
    attributes[:pos]                    = fields[SYMBOL_TO_STRING[:pos]] || fields[:pos] || attributes[:pos]
    attributes[:labels]                 = (fields[SYMBOL_TO_STRING[:labels]] || []).map { |lbl| Trello::Label.new(lbl) }.presence || attributes[:labels].presence || []
    attributes[:card_labels]            = fields[SYMBOL_TO_STRING[:card_labels]] || fields[:card_labels] || attributes[:card_labels]
    attributes[:last_activity_date]     = Time.iso8601(fields[SYMBOL_TO_STRING[:last_activity_date]]) rescue nil if fields.has_key?(SYMBOL_TO_STRING[:last_activity_date])
    attributes[:cover_image_id]         = fields[SYMBOL_TO_STRING[:cover_image_id]] || attributes[:cover_image_id]
    attributes[:badges]                 = fields[SYMBOL_TO_STRING[:badges]] || attributes[:badges]
    attributes[:card_members]           = fields[SYMBOL_TO_STRING[:card_members]] || attributes[:card_members]
    attributes[:source_card_id]         = fields[SYMBOL_TO_STRING[:source_card_id]] || fields[:source_card_id] || attributes[:source_card_id]
    attributes[:source_card_properties] = fields[SYMBOL_TO_STRING[:source_card_properties]] || fields[:source_card_properties] || attributes[:source_card_properties]
    self
  end

end

#card_labelsArray<Hash>

Returns:


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# File 'lib/trello/card.rb', line 45

class Card < BasicData
  register_attributes :id, :short_id, :name, :desc, :due, :due_complete, :closed, :url, :short_url,
    :board_id, :member_ids, :list_id, :pos, :last_activity_date, :labels, :card_labels,
    :cover_image_id, :badges, :card_members, :source_card_id, :source_card_properties,
    readonly: [ :id, :short_id, :url, :short_url, :last_activity_date, :badges, :card_members ]
  validates_presence_of :id, :name, :list_id
  validates_length_of   :name, in: 1..16384
  validates_length_of   :desc, in: 0..16384

  include HasActions

  SYMBOL_TO_STRING = {
    id: 'id',
    short_id: 'idShort',
    name: 'name',
    desc: 'desc',
    due: 'due',
    due_complete: 'dueComplete',
    closed: 'closed',
    url: 'url',
    short_url: 'shortUrl',
    board_id: 'idBoard',
    member_ids: 'idMembers',
    cover_image_id: 'idAttachmentCover',
    list_id: 'idList',
    pos: 'pos',
    last_activity_date: 'dateLastActivity',
    card_labels: 'idLabels',
    labels: 'labels',
    badges: 'badges',
    card_members: 'members',
    source_card_id: "idCardSource",
    source_card_properties: "keepFromSource"
  }

  class << self
    # Find a specific card by its id.
    #
    # @raise [Trello::Error] if the card could not be found.
    #
    # @return [Trello::Card]
    def find(id, params = {})
      client.find(:card, id, params)
    end

    # Create a new card and save it on Trello.
    #
    # If using source_card_id to duplicate a card, make sure to save
    # the source card to Trello before calling this method to assure
    # the correct data is used in the duplication.
    #
    # @param [Hash] options
    # @option options [String] :name The name of the new card.
    # @option options [String] :list_id ID of the list that the card should
    #     be added to.
    # @option options [String] :desc A string with a
    #     length from 0 to 16384.
    # @option options [String] :member_ids A comma-separated list of
    #     objectIds (24-character hex strings).
    # @option options [String] :card_labels A comma-separated list of
    #     objectIds (24-character hex strings).
    # @option options [Date] :due A date, or `nil`.
    # @option options [String] :pos A position. `"top"`, `"bottom"`, or a
    #     positive number. Defaults to `"bottom"`.
    # @option options [String] :source_card_id ID of the card to copy
    # @option options [String] :source_card_properties A single, or array of,
    #     string properties to copy from source card.
    #     `"all"`, `"checklists"`, `"due"`, `"members"`, or `nil`.
    #     Defaults to `"all"`.
    #
    # @raise [Trello::Error] if the card could not be created.
    #
    # @return [Trello::Card]
    def create(options)
      client.create(:card,
        'name' => options[:name],
        'idList' => options[:list_id],
        'desc'   => options[:desc],
        'idMembers' => options[:member_ids],
        'idLabels' => options[:card_labels],
        'due' => options[:due],
        'due_complete' => options[:due_complete] || false,
        'pos' => options[:pos],
        'idCardSource' => options[:source_card_id],
        'keepFromSource' => options.key?(:source_card_properties) ? options[:source_card_properties] : 'all'
      )
    end
  end

  # Update the fields of a card.
  #
  # Supply a hash of string keyed data retrieved from the Trello API representing
  # a card.
  #
  # Note that this this method does not save anything new to the Trello API,
  # it just assigns the input attributes to your local object. If you use
  # this method to assign attributes, call `save` or `update!` afterwards if
  # you want to persist your changes to Trello.
  #
  # @param [Hash] fields
  # @option fields [String] :id
  # @option fields [String] :short_id
  # @option fields [String] :name The new name of the card.
  # @option fields [String] :desc A string with a length from 0 to
  #     16384.
  # @option fields [Date] :due A date, or `nil`.
  # @option fields [Boolean] :due_complete
  # @option fields [Boolean] :closed
  # @option fields [String] :url
  # @option fields [String] :short_url
  # @option fields [String] :board_id
  # @option fields [String] :member_ids A comma-separated list of objectIds
  #     (24-character hex strings).
  # @option fields [String] :pos A position. `"top"`, `"bottom"`, or a
  #     positive number. Defaults to `"bottom"`.
  # @option fields [Array]  :labels An Array of Trello::Label objects
  #     derived from the JSON response
  # @option fields [String] :card_labels A comma-separated list of
  #     objectIds (24-character hex strings).
  # @option fields [Object] :cover_image_id
  # @option fields [Object] :badges
  # @option fields [Object] :card_members
  # @option fields [String] :source_card_id
  # @option fields [Array]  :source_card_properties
  #
  # @return [Trello::Card] self
  def update_fields(fields)
    %i[
      name desc due due_complete closed
      board_id member_ids list_id pos
      card_labels cover_image_id
    ].each do |key|
      send("#{key}_will_change!") if fields_has_key?(fields, key)
    end

    initialize_fields(fields)
  end

  def initialize(fields = {})
    initialize_fields(fields)
  end

  # Returns a reference to the board this card is part of.
  one :board, path: :boards, using: :board_id

  # Returns a reference to the cover image attachment
  def cover_image(params = {})
    response = client.get("/cards/#{id}/attachments/#{cover_image_id}", params)
    CoverImage.from_response(response)
  end

  # Returns a list of checklists associated with the card.
  #
  # The options hash may have a filter key which can have its value set as any
  # of the following values:
  #    :filter => [ :none, :all ] # default :all
  many :checklists, filter: :all

  # Returns a list of plugins associated with the card
  many :plugin_data, path: "pluginData"

  # List of custom field values on the card, only the ones that have been set
  many :custom_field_items, path: 'customFieldItems'

  def check_item_states
    states = CheckItemState.from_response client.get("/cards/#{self.id}/checkItemStates")
    MultiAssociation.new(self, states).proxy
  end

  # Returns a reference to the list this card is currently in.
  one :list, path: :lists, using: :list_id

  # Returns a list of members who are assigned to this card.
  #
  # @return [Array<Trello::Member>]
  def members
    members = Member.from_response client.get("/cards/#{self.id}/members")
    MultiAssociation.new(self, members).proxy
  end

  # Returns a list of members who have upvoted this card
  # NOTE: this fetches a list each time it's called to avoid case where
  # card is voted (or vote is removed) after card is fetched. Optimizing
  # accuracy over network performance
  #
  # @return [Array<Trello::Member>]
  def voters
    Member.from_response client.get("/cards/#{id}/membersVoted")
  end

  # Saves a record.
  #
  # @raise [Trello::Error] if the card could not be saved
  #
  # @return [String] The JSON representation of the saved card returned by
  #     the Trello API.
  def save
    # If we have an id, just update our fields.
    return update! if id

    from_response client.post("/cards", {
      name:   name,
      desc:   desc,
      idList: list_id,
      idMembers: member_ids,
      idLabels: card_labels,
      pos: pos,
      due: due,
      dueComplete: due_complete,
      idCardSource: source_card_id,
      keepFromSource: source_card_properties
    })
  end

  # Update an existing record.
  #
  # Warning: this updates all fields using values already in memory. If
  # an external resource has updated these fields, you should refresh!
  # this object before making your changes, and before updating the record.
  #
  # @raise [Trello::Error] if the card could not be updated.
  #
  # @return [Trello::Card] updated self
  def update!
    @previously_changed = changes
    # extract only new values to build payload
    payload = Hash[changes.map { |key, values| [SYMBOL_TO_STRING[key.to_sym].to_sym, values[1]] }]

    response = client.put("/cards/#{id}", payload)
    updated_card = from_response(response)

    @changed_attributes.clear if @changed_attributes.respond_to?(:clear)
    changes_applied if respond_to?(:changes_applied)

    attributes[:id]                     = updated_card.id
    attributes[:short_id]               = updated_card.short_id
    attributes[:name]                   = updated_card.name
    attributes[:desc]                   = updated_card.desc
    attributes[:due]                    = updated_card.due
    attributes[:due_complete]           = updated_card.due_complete
    attributes[:closed]                 = updated_card.closed
    attributes[:url]                    = updated_card.url
    attributes[:short_url]              = updated_card.short_url
    attributes[:board_id]               = updated_card.board_id
    attributes[:member_ids]             = updated_card.member_ids
    attributes[:list_id]                = updated_card.list_id
    attributes[:pos]                    = updated_card.pos
    attributes[:labels]                 = updated_card.labels
    attributes[:card_labels]            = updated_card.card_labels
    attributes[:last_activity_date]     = updated_card.last_activity_date
    attributes[:cover_image_id]         = updated_card.cover_image_id
    attributes[:badges]                 = updated_card.badges
    attributes[:card_members]           = updated_card.card_members
    attributes[:source_card_id]         = updated_card.source_card_id
    attributes[:source_card_properties] = updated_card.source_card_properties

    self
  end

  # Delete this card
  #
  # @return [String] the JSON response from the Trello API
  def delete
    client.delete("/cards/#{id}")
  end

  # Check if the card is not active anymore.
  def closed?
    closed
  end

  # Close the card.
  #
  # This only marks your local copy card as closed. Use `close!` if you
  # want to close the card and persist the change to the Trello API.
  #
  # @return [Boolean] always returns true
  #
  # @return [String] The JSON representation of the closed card returned by
  #     the Trello API.
  def close
    self.closed = true
  end

  def close!
    close
    save
  end

  # Is the record valid?
  def valid?
    !(name && list_id).nil?
  end

  # Add a comment with the supplied text.
  def add_comment(text)
    client.post("/cards/#{id}/actions/comments", text: text)
  end

  # Add a checklist to this card
  def add_checklist(checklist, name: nil, position: nil)
    payload = { idChecklistSource: checklist.id }
    payload[:name] = name if name 
    payload[:pos] = position if position

    client.post("/cards/#{id}/checklists", payload)
  end

  # create a new checklist and add it to this card
  def create_new_checklist(name)
    client.post("/cards/#{id}/checklists", { name: name })
  end

  # Move this card to the given list
  def move_to_list(list)
    list_number = list.is_a?(String) ? list : list.id
    unless list_id == list_number
      client.put("/cards/#{id}/idList", {
        value: list_number
      })
    end
  end

  # Moves this card to the given list no matter which board it is on
  def move_to_list_on_any_board(list_id)
    list = List.find(list_id)
    if board.id == list.board_id
      move_to_list(list_id)
    else
      move_to_board(Board.find(list.board_id), list)
    end
  end

  # Move this card to the given board (and optional list on this board)
  def move_to_board(new_board, new_list = nil)
    unless board_id == new_board.id
      payload = { value: new_board.id }
      payload[:idList] = new_list.id if new_list
      client.put("/cards/#{id}/idBoard", payload)
    end
  end

  # Add a member to this card
  def add_member(member)
    client.post("/cards/#{id}/idMembers", {
      value: member.id
    })
  end

  # Remove a member from this card
  def remove_member(member)
    client.delete("/cards/#{id}/idMembers/#{member.id}")
  end

  # Current authenticated user upvotes a card
  def upvote
    begin
      client.post("/cards/#{id}/membersVoted", {
        value: me.id
      })
    rescue Trello::Error => e
      fail e unless e.message =~ /has already voted/i
    end

    self
  end

  # Recind upvote. Noop if authenticated user hasn't previously voted
  def remove_upvote
    begin
      client.delete("/cards/#{id}/membersVoted/#{me.id}")
    rescue Trello::Error => e
      fail e unless e.message =~ /has not voted/i
    end

    self
  end

  # Add a label
  def add_label(label)
    unless label.valid?
      errors.add(:label, "is not valid.")
      return Trello.logger.warn "Label is not valid." unless label.valid?
    end
    client.post("/cards/#{id}/idLabels", {value: label.id})
  end

  # Remove a label
  def remove_label(label)
    unless label.valid?
      errors.add(:label, "is not valid.")
      return Trello.logger.warn "Label is not valid." unless label.valid?
    end
    client.delete("/cards/#{id}/idLabels/#{label.id}")
  end

  # Add an attachment to this card
  def add_attachment(attachment, name = '')
    # Is it a file object or a string (url)?
    if attachment.respond_to?(:path) && attachment.respond_to?(:read)
      client.post("/cards/#{id}/attachments", {
          file: attachment,
          name: name
        })
    else
      client.post("/cards/#{id}/attachments", {
          url: attachment,
          name: name
        })
    end
  end

  # Retrieve a list of attachments
  def attachments
    attachments = Attachment.from_response client.get("/cards/#{id}/attachments")
    MultiAssociation.new(self, attachments).proxy
  end

  # Remove an attachment from this card
  def remove_attachment(attachment)
    client.delete("/cards/#{id}/attachments/#{attachment.id}")
  end

  # :nodoc:
  def request_prefix
    "/cards/#{id}"
  end

  # Retrieve a list of comments
  def comments
    comments = Comment.from_response client.get("/cards/#{id}/actions", filter: "commentCard")
  end

  # Find the creation date
  def created_at
    @created_at ||= Time.at(id[0..7].to_i(16)) rescue nil
  end

  private

  def me
    @me ||= Member.find(:me)
  end

  def fields_has_key?(fields, key)
    fields.key?(SYMBOL_TO_STRING[key]) || fields.key?(key)
  end

  def initialize_fields(fields)
    attributes[:id]                     = fields[SYMBOL_TO_STRING[:id]] || attributes[:id]
    attributes[:short_id]               = fields[SYMBOL_TO_STRING[:short_id]] || attributes[:short_id]
    attributes[:name]                   = fields[SYMBOL_TO_STRING[:name]] || fields[:name] || attributes[:name]
    attributes[:desc]                   = fields[SYMBOL_TO_STRING[:desc]] || fields[:desc] || attributes[:desc]
    attributes[:due]                    = Time.iso8601(fields[SYMBOL_TO_STRING[:due]]) rescue nil if fields.has_key?(SYMBOL_TO_STRING[:due])
    attributes[:due]                    = fields[:due] if fields.has_key?(:due)
    attributes[:due_complete]           = fields[SYMBOL_TO_STRING[:due_complete]] if fields.has_key?(SYMBOL_TO_STRING[:due_complete])
    attributes[:due_complete]           ||= false
    attributes[:closed]                 = fields[SYMBOL_TO_STRING[:closed]] if fields.has_key?(SYMBOL_TO_STRING[:closed])
    attributes[:url]                    = fields[SYMBOL_TO_STRING[:url]] || attributes[:url]
    attributes[:short_url]              = fields[SYMBOL_TO_STRING[:short_url]] || attributes[:short_url]
    attributes[:board_id]               = fields[SYMBOL_TO_STRING[:board_id]] || attributes[:board_id]
    attributes[:member_ids]             = fields[SYMBOL_TO_STRING[:member_ids]] || fields[:member_ids] || attributes[:member_ids]
    attributes[:list_id]                = fields[SYMBOL_TO_STRING[:list_id]] || fields[:list_id] || attributes[:list_id]
    attributes[:pos]                    = fields[SYMBOL_TO_STRING[:pos]] || fields[:pos] || attributes[:pos]
    attributes[:labels]                 = (fields[SYMBOL_TO_STRING[:labels]] || []).map { |lbl| Trello::Label.new(lbl) }.presence || attributes[:labels].presence || []
    attributes[:card_labels]            = fields[SYMBOL_TO_STRING[:card_labels]] || fields[:card_labels] || attributes[:card_labels]
    attributes[:last_activity_date]     = Time.iso8601(fields[SYMBOL_TO_STRING[:last_activity_date]]) rescue nil if fields.has_key?(SYMBOL_TO_STRING[:last_activity_date])
    attributes[:cover_image_id]         = fields[SYMBOL_TO_STRING[:cover_image_id]] || attributes[:cover_image_id]
    attributes[:badges]                 = fields[SYMBOL_TO_STRING[:badges]] || attributes[:badges]
    attributes[:card_members]           = fields[SYMBOL_TO_STRING[:card_members]] || attributes[:card_members]
    attributes[:source_card_id]         = fields[SYMBOL_TO_STRING[:source_card_id]] || fields[:source_card_id] || attributes[:source_card_id]
    attributes[:source_card_properties] = fields[SYMBOL_TO_STRING[:source_card_properties]] || fields[:source_card_properties] || attributes[:source_card_properties]
    self
  end

end

#card_membersObject (readonly)

Returns:

  • (Object)

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# File 'lib/trello/card.rb', line 45

class Card < BasicData
  register_attributes :id, :short_id, :name, :desc, :due, :due_complete, :closed, :url, :short_url,
    :board_id, :member_ids, :list_id, :pos, :last_activity_date, :labels, :card_labels,
    :cover_image_id, :badges, :card_members, :source_card_id, :source_card_properties,
    readonly: [ :id, :short_id, :url, :short_url, :last_activity_date, :badges, :card_members ]
  validates_presence_of :id, :name, :list_id
  validates_length_of   :name, in: 1..16384
  validates_length_of   :desc, in: 0..16384

  include HasActions

  SYMBOL_TO_STRING = {
    id: 'id',
    short_id: 'idShort',
    name: 'name',
    desc: 'desc',
    due: 'due',
    due_complete: 'dueComplete',
    closed: 'closed',
    url: 'url',
    short_url: 'shortUrl',
    board_id: 'idBoard',
    member_ids: 'idMembers',
    cover_image_id: 'idAttachmentCover',
    list_id: 'idList',
    pos: 'pos',
    last_activity_date: 'dateLastActivity',
    card_labels: 'idLabels',
    labels: 'labels',
    badges: 'badges',
    card_members: 'members',
    source_card_id: "idCardSource",
    source_card_properties: "keepFromSource"
  }

  class << self
    # Find a specific card by its id.
    #
    # @raise [Trello::Error] if the card could not be found.
    #
    # @return [Trello::Card]
    def find(id, params = {})
      client.find(:card, id, params)
    end

    # Create a new card and save it on Trello.
    #
    # If using source_card_id to duplicate a card, make sure to save
    # the source card to Trello before calling this method to assure
    # the correct data is used in the duplication.
    #
    # @param [Hash] options
    # @option options [String] :name The name of the new card.
    # @option options [String] :list_id ID of the list that the card should
    #     be added to.
    # @option options [String] :desc A string with a
    #     length from 0 to 16384.
    # @option options [String] :member_ids A comma-separated list of
    #     objectIds (24-character hex strings).
    # @option options [String] :card_labels A comma-separated list of
    #     objectIds (24-character hex strings).
    # @option options [Date] :due A date, or `nil`.
    # @option options [String] :pos A position. `"top"`, `"bottom"`, or a
    #     positive number. Defaults to `"bottom"`.
    # @option options [String] :source_card_id ID of the card to copy
    # @option options [String] :source_card_properties A single, or array of,
    #     string properties to copy from source card.
    #     `"all"`, `"checklists"`, `"due"`, `"members"`, or `nil`.
    #     Defaults to `"all"`.
    #
    # @raise [Trello::Error] if the card could not be created.
    #
    # @return [Trello::Card]
    def create(options)
      client.create(:card,
        'name' => options[:name],
        'idList' => options[:list_id],
        'desc'   => options[:desc],
        'idMembers' => options[:member_ids],
        'idLabels' => options[:card_labels],
        'due' => options[:due],
        'due_complete' => options[:due_complete] || false,
        'pos' => options[:pos],
        'idCardSource' => options[:source_card_id],
        'keepFromSource' => options.key?(:source_card_properties) ? options[:source_card_properties] : 'all'
      )
    end
  end

  # Update the fields of a card.
  #
  # Supply a hash of string keyed data retrieved from the Trello API representing
  # a card.
  #
  # Note that this this method does not save anything new to the Trello API,
  # it just assigns the input attributes to your local object. If you use
  # this method to assign attributes, call `save` or `update!` afterwards if
  # you want to persist your changes to Trello.
  #
  # @param [Hash] fields
  # @option fields [String] :id
  # @option fields [String] :short_id
  # @option fields [String] :name The new name of the card.
  # @option fields [String] :desc A string with a length from 0 to
  #     16384.
  # @option fields [Date] :due A date, or `nil`.
  # @option fields [Boolean] :due_complete
  # @option fields [Boolean] :closed
  # @option fields [String] :url
  # @option fields [String] :short_url
  # @option fields [String] :board_id
  # @option fields [String] :member_ids A comma-separated list of objectIds
  #     (24-character hex strings).
  # @option fields [String] :pos A position. `"top"`, `"bottom"`, or a
  #     positive number. Defaults to `"bottom"`.
  # @option fields [Array]  :labels An Array of Trello::Label objects
  #     derived from the JSON response
  # @option fields [String] :card_labels A comma-separated list of
  #     objectIds (24-character hex strings).
  # @option fields [Object] :cover_image_id
  # @option fields [Object] :badges
  # @option fields [Object] :card_members
  # @option fields [String] :source_card_id
  # @option fields [Array]  :source_card_properties
  #
  # @return [Trello::Card] self
  def update_fields(fields)
    %i[
      name desc due due_complete closed
      board_id member_ids list_id pos
      card_labels cover_image_id
    ].each do |key|
      send("#{key}_will_change!") if fields_has_key?(fields, key)
    end

    initialize_fields(fields)
  end

  def initialize(fields = {})
    initialize_fields(fields)
  end

  # Returns a reference to the board this card is part of.
  one :board, path: :boards, using: :board_id

  # Returns a reference to the cover image attachment
  def cover_image(params = {})
    response = client.get("/cards/#{id}/attachments/#{cover_image_id}", params)
    CoverImage.from_response(response)
  end

  # Returns a list of checklists associated with the card.
  #
  # The options hash may have a filter key which can have its value set as any
  # of the following values:
  #    :filter => [ :none, :all ] # default :all
  many :checklists, filter: :all

  # Returns a list of plugins associated with the card
  many :plugin_data, path: "pluginData"

  # List of custom field values on the card, only the ones that have been set
  many :custom_field_items, path: 'customFieldItems'

  def check_item_states
    states = CheckItemState.from_response client.get("/cards/#{self.id}/checkItemStates")
    MultiAssociation.new(self, states).proxy
  end

  # Returns a reference to the list this card is currently in.
  one :list, path: :lists, using: :list_id

  # Returns a list of members who are assigned to this card.
  #
  # @return [Array<Trello::Member>]
  def members
    members = Member.from_response client.get("/cards/#{self.id}/members")
    MultiAssociation.new(self, members).proxy
  end

  # Returns a list of members who have upvoted this card
  # NOTE: this fetches a list each time it's called to avoid case where
  # card is voted (or vote is removed) after card is fetched. Optimizing
  # accuracy over network performance
  #
  # @return [Array<Trello::Member>]
  def voters
    Member.from_response client.get("/cards/#{id}/membersVoted")
  end

  # Saves a record.
  #
  # @raise [Trello::Error] if the card could not be saved
  #
  # @return [String] The JSON representation of the saved card returned by
  #     the Trello API.
  def save
    # If we have an id, just update our fields.
    return update! if id

    from_response client.post("/cards", {
      name:   name,
      desc:   desc,
      idList: list_id,
      idMembers: member_ids,
      idLabels: card_labels,
      pos: pos,
      due: due,
      dueComplete: due_complete,
      idCardSource: source_card_id,
      keepFromSource: source_card_properties
    })
  end

  # Update an existing record.
  #
  # Warning: this updates all fields using values already in memory. If
  # an external resource has updated these fields, you should refresh!
  # this object before making your changes, and before updating the record.
  #
  # @raise [Trello::Error] if the card could not be updated.
  #
  # @return [Trello::Card] updated self
  def update!
    @previously_changed = changes
    # extract only new values to build payload
    payload = Hash[changes.map { |key, values| [SYMBOL_TO_STRING[key.to_sym].to_sym, values[1]] }]

    response = client.put("/cards/#{id}", payload)
    updated_card = from_response(response)

    @changed_attributes.clear if @changed_attributes.respond_to?(:clear)
    changes_applied if respond_to?(:changes_applied)

    attributes[:id]                     = updated_card.id
    attributes[:short_id]               = updated_card.short_id
    attributes[:name]                   = updated_card.name
    attributes[:desc]                   = updated_card.desc
    attributes[:due]                    = updated_card.due
    attributes[:due_complete]           = updated_card.due_complete
    attributes[:closed]                 = updated_card.closed
    attributes[:url]                    = updated_card.url
    attributes[:short_url]              = updated_card.short_url
    attributes[:board_id]               = updated_card.board_id
    attributes[:member_ids]             = updated_card.member_ids
    attributes[:list_id]                = updated_card.list_id
    attributes[:pos]                    = updated_card.pos
    attributes[:labels]                 = updated_card.labels
    attributes[:card_labels]            = updated_card.card_labels
    attributes[:last_activity_date]     = updated_card.last_activity_date
    attributes[:cover_image_id]         = updated_card.cover_image_id
    attributes[:badges]                 = updated_card.badges
    attributes[:card_members]           = updated_card.card_members
    attributes[:source_card_id]         = updated_card.source_card_id
    attributes[:source_card_properties] = updated_card.source_card_properties

    self
  end

  # Delete this card
  #
  # @return [String] the JSON response from the Trello API
  def delete
    client.delete("/cards/#{id}")
  end

  # Check if the card is not active anymore.
  def closed?
    closed
  end

  # Close the card.
  #
  # This only marks your local copy card as closed. Use `close!` if you
  # want to close the card and persist the change to the Trello API.
  #
  # @return [Boolean] always returns true
  #
  # @return [String] The JSON representation of the closed card returned by
  #     the Trello API.
  def close
    self.closed = true
  end

  def close!
    close
    save
  end

  # Is the record valid?
  def valid?
    !(name && list_id).nil?
  end

  # Add a comment with the supplied text.
  def add_comment(text)
    client.post("/cards/#{id}/actions/comments", text: text)
  end

  # Add a checklist to this card
  def add_checklist(checklist, name: nil, position: nil)
    payload = { idChecklistSource: checklist.id }
    payload[:name] = name if name 
    payload[:pos] = position if position

    client.post("/cards/#{id}/checklists", payload)
  end

  # create a new checklist and add it to this card
  def create_new_checklist(name)
    client.post("/cards/#{id}/checklists", { name: name })
  end

  # Move this card to the given list
  def move_to_list(list)
    list_number = list.is_a?(String) ? list : list.id
    unless list_id == list_number
      client.put("/cards/#{id}/idList", {
        value: list_number
      })
    end
  end

  # Moves this card to the given list no matter which board it is on
  def move_to_list_on_any_board(list_id)
    list = List.find(list_id)
    if board.id == list.board_id
      move_to_list(list_id)
    else
      move_to_board(Board.find(list.board_id), list)
    end
  end

  # Move this card to the given board (and optional list on this board)
  def move_to_board(new_board, new_list = nil)
    unless board_id == new_board.id
      payload = { value: new_board.id }
      payload[:idList] = new_list.id if new_list
      client.put("/cards/#{id}/idBoard", payload)
    end
  end

  # Add a member to this card
  def add_member(member)
    client.post("/cards/#{id}/idMembers", {
      value: member.id
    })
  end

  # Remove a member from this card
  def remove_member(member)
    client.delete("/cards/#{id}/idMembers/#{member.id}")
  end

  # Current authenticated user upvotes a card
  def upvote
    begin
      client.post("/cards/#{id}/membersVoted", {
        value: me.id
      })
    rescue Trello::Error => e
      fail e unless e.message =~ /has already voted/i
    end

    self
  end

  # Recind upvote. Noop if authenticated user hasn't previously voted
  def remove_upvote
    begin
      client.delete("/cards/#{id}/membersVoted/#{me.id}")
    rescue Trello::Error => e
      fail e unless e.message =~ /has not voted/i
    end

    self
  end

  # Add a label
  def add_label(label)
    unless label.valid?
      errors.add(:label, "is not valid.")
      return Trello.logger.warn "Label is not valid." unless label.valid?
    end
    client.post("/cards/#{id}/idLabels", {value: label.id})
  end

  # Remove a label
  def remove_label(label)
    unless label.valid?
      errors.add(:label, "is not valid.")
      return Trello.logger.warn "Label is not valid." unless label.valid?
    end
    client.delete("/cards/#{id}/idLabels/#{label.id}")
  end

  # Add an attachment to this card
  def add_attachment(attachment, name = '')
    # Is it a file object or a string (url)?
    if attachment.respond_to?(:path) && attachment.respond_to?(:read)
      client.post("/cards/#{id}/attachments", {
          file: attachment,
          name: name
        })
    else
      client.post("/cards/#{id}/attachments", {
          url: attachment,
          name: name
        })
    end
  end

  # Retrieve a list of attachments
  def attachments
    attachments = Attachment.from_response client.get("/cards/#{id}/attachments")
    MultiAssociation.new(self, attachments).proxy
  end

  # Remove an attachment from this card
  def remove_attachment(attachment)
    client.delete("/cards/#{id}/attachments/#{attachment.id}")
  end

  # :nodoc:
  def request_prefix
    "/cards/#{id}"
  end

  # Retrieve a list of comments
  def comments
    comments = Comment.from_response client.get("/cards/#{id}/actions", filter: "commentCard")
  end

  # Find the creation date
  def created_at
    @created_at ||= Time.at(id[0..7].to_i(16)) rescue nil
  end

  private

  def me
    @me ||= Member.find(:me)
  end

  def fields_has_key?(fields, key)
    fields.key?(SYMBOL_TO_STRING[key]) || fields.key?(key)
  end

  def initialize_fields(fields)
    attributes[:id]                     = fields[SYMBOL_TO_STRING[:id]] || attributes[:id]
    attributes[:short_id]               = fields[SYMBOL_TO_STRING[:short_id]] || attributes[:short_id]
    attributes[:name]                   = fields[SYMBOL_TO_STRING[:name]] || fields[:name] || attributes[:name]
    attributes[:desc]                   = fields[SYMBOL_TO_STRING[:desc]] || fields[:desc] || attributes[:desc]
    attributes[:due]                    = Time.iso8601(fields[SYMBOL_TO_STRING[:due]]) rescue nil if fields.has_key?(SYMBOL_TO_STRING[:due])
    attributes[:due]                    = fields[:due] if fields.has_key?(:due)
    attributes[:due_complete]           = fields[SYMBOL_TO_STRING[:due_complete]] if fields.has_key?(SYMBOL_TO_STRING[:due_complete])
    attributes[:due_complete]           ||= false
    attributes[:closed]                 = fields[SYMBOL_TO_STRING[:closed]] if fields.has_key?(SYMBOL_TO_STRING[:closed])
    attributes[:url]                    = fields[SYMBOL_TO_STRING[:url]] || attributes[:url]
    attributes[:short_url]              = fields[SYMBOL_TO_STRING[:short_url]] || attributes[:short_url]
    attributes[:board_id]               = fields[SYMBOL_TO_STRING[:board_id]] || attributes[:board_id]
    attributes[:member_ids]             = fields[SYMBOL_TO_STRING[:member_ids]] || fields[:member_ids] || attributes[:member_ids]
    attributes[:list_id]                = fields[SYMBOL_TO_STRING[:list_id]] || fields[:list_id] || attributes[:list_id]
    attributes[:pos]                    = fields[SYMBOL_TO_STRING[:pos]] || fields[:pos] || attributes[:pos]
    attributes[:labels]                 = (fields[SYMBOL_TO_STRING[:labels]] || []).map { |lbl| Trello::Label.new(lbl) }.presence || attributes[:labels].presence || []
    attributes[:card_labels]            = fields[SYMBOL_TO_STRING[:card_labels]] || fields[:card_labels] || attributes[:card_labels]
    attributes[:last_activity_date]     = Time.iso8601(fields[SYMBOL_TO_STRING[:last_activity_date]]) rescue nil if fields.has_key?(SYMBOL_TO_STRING[:last_activity_date])
    attributes[:cover_image_id]         = fields[SYMBOL_TO_STRING[:cover_image_id]] || attributes[:cover_image_id]
    attributes[:badges]                 = fields[SYMBOL_TO_STRING[:badges]] || attributes[:badges]
    attributes[:card_members]           = fields[SYMBOL_TO_STRING[:card_members]] || attributes[:card_members]
    attributes[:source_card_id]         = fields[SYMBOL_TO_STRING[:source_card_id]] || fields[:source_card_id] || attributes[:source_card_id]
    attributes[:source_card_properties] = fields[SYMBOL_TO_STRING[:source_card_properties]] || fields[:source_card_properties] || attributes[:source_card_properties]
    self
  end

end

#closedBoolean

Returns:

  • (Boolean)

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# File 'lib/trello/card.rb', line 45

class Card < BasicData
  register_attributes :id, :short_id, :name, :desc, :due, :due_complete, :closed, :url, :short_url,
    :board_id, :member_ids, :list_id, :pos, :last_activity_date, :labels, :card_labels,
    :cover_image_id, :badges, :card_members, :source_card_id, :source_card_properties,
    readonly: [ :id, :short_id, :url, :short_url, :last_activity_date, :badges, :card_members ]
  validates_presence_of :id, :name, :list_id
  validates_length_of   :name, in: 1..16384
  validates_length_of   :desc, in: 0..16384

  include HasActions

  SYMBOL_TO_STRING = {
    id: 'id',
    short_id: 'idShort',
    name: 'name',
    desc: 'desc',
    due: 'due',
    due_complete: 'dueComplete',
    closed: 'closed',
    url: 'url',
    short_url: 'shortUrl',
    board_id: 'idBoard',
    member_ids: 'idMembers',
    cover_image_id: 'idAttachmentCover',
    list_id: 'idList',
    pos: 'pos',
    last_activity_date: 'dateLastActivity',
    card_labels: 'idLabels',
    labels: 'labels',
    badges: 'badges',
    card_members: 'members',
    source_card_id: "idCardSource",
    source_card_properties: "keepFromSource"
  }

  class << self
    # Find a specific card by its id.
    #
    # @raise [Trello::Error] if the card could not be found.
    #
    # @return [Trello::Card]
    def find(id, params = {})
      client.find(:card, id, params)
    end

    # Create a new card and save it on Trello.
    #
    # If using source_card_id to duplicate a card, make sure to save
    # the source card to Trello before calling this method to assure
    # the correct data is used in the duplication.
    #
    # @param [Hash] options
    # @option options [String] :name The name of the new card.
    # @option options [String] :list_id ID of the list that the card should
    #     be added to.
    # @option options [String] :desc A string with a
    #     length from 0 to 16384.
    # @option options [String] :member_ids A comma-separated list of
    #     objectIds (24-character hex strings).
    # @option options [String] :card_labels A comma-separated list of
    #     objectIds (24-character hex strings).
    # @option options [Date] :due A date, or `nil`.
    # @option options [String] :pos A position. `"top"`, `"bottom"`, or a
    #     positive number. Defaults to `"bottom"`.
    # @option options [String] :source_card_id ID of the card to copy
    # @option options [String] :source_card_properties A single, or array of,
    #     string properties to copy from source card.
    #     `"all"`, `"checklists"`, `"due"`, `"members"`, or `nil`.
    #     Defaults to `"all"`.
    #
    # @raise [Trello::Error] if the card could not be created.
    #
    # @return [Trello::Card]
    def create(options)
      client.create(:card,
        'name' => options[:name],
        'idList' => options[:list_id],
        'desc'   => options[:desc],
        'idMembers' => options[:member_ids],
        'idLabels' => options[:card_labels],
        'due' => options[:due],
        'due_complete' => options[:due_complete] || false,
        'pos' => options[:pos],
        'idCardSource' => options[:source_card_id],
        'keepFromSource' => options.key?(:source_card_properties) ? options[:source_card_properties] : 'all'
      )
    end
  end

  # Update the fields of a card.
  #
  # Supply a hash of string keyed data retrieved from the Trello API representing
  # a card.
  #
  # Note that this this method does not save anything new to the Trello API,
  # it just assigns the input attributes to your local object. If you use
  # this method to assign attributes, call `save` or `update!` afterwards if
  # you want to persist your changes to Trello.
  #
  # @param [Hash] fields
  # @option fields [String] :id
  # @option fields [String] :short_id
  # @option fields [String] :name The new name of the card.
  # @option fields [String] :desc A string with a length from 0 to
  #     16384.
  # @option fields [Date] :due A date, or `nil`.
  # @option fields [Boolean] :due_complete
  # @option fields [Boolean] :closed
  # @option fields [String] :url
  # @option fields [String] :short_url
  # @option fields [String] :board_id
  # @option fields [String] :member_ids A comma-separated list of objectIds
  #     (24-character hex strings).
  # @option fields [String] :pos A position. `"top"`, `"bottom"`, or a
  #     positive number. Defaults to `"bottom"`.
  # @option fields [Array]  :labels An Array of Trello::Label objects
  #     derived from the JSON response
  # @option fields [String] :card_labels A comma-separated list of
  #     objectIds (24-character hex strings).
  # @option fields [Object] :cover_image_id
  # @option fields [Object] :badges
  # @option fields [Object] :card_members
  # @option fields [String] :source_card_id
  # @option fields [Array]  :source_card_properties
  #
  # @return [Trello::Card] self
  def update_fields(fields)
    %i[
      name desc due due_complete closed
      board_id member_ids list_id pos
      card_labels cover_image_id
    ].each do |key|
      send("#{key}_will_change!") if fields_has_key?(fields, key)
    end

    initialize_fields(fields)
  end

  def initialize(fields = {})
    initialize_fields(fields)
  end

  # Returns a reference to the board this card is part of.
  one :board, path: :boards, using: :board_id

  # Returns a reference to the cover image attachment
  def cover_image(params = {})
    response = client.get("/cards/#{id}/attachments/#{cover_image_id}", params)
    CoverImage.from_response(response)
  end

  # Returns a list of checklists associated with the card.
  #
  # The options hash may have a filter key which can have its value set as any
  # of the following values:
  #    :filter => [ :none, :all ] # default :all
  many :checklists, filter: :all

  # Returns a list of plugins associated with the card
  many :plugin_data, path: "pluginData"

  # List of custom field values on the card, only the ones that have been set
  many :custom_field_items, path: 'customFieldItems'

  def check_item_states
    states = CheckItemState.from_response client.get("/cards/#{self.id}/checkItemStates")
    MultiAssociation.new(self, states).proxy
  end

  # Returns a reference to the list this card is currently in.
  one :list, path: :lists, using: :list_id

  # Returns a list of members who are assigned to this card.
  #
  # @return [Array<Trello::Member>]
  def members
    members = Member.from_response client.get("/cards/#{self.id}/members")
    MultiAssociation.new(self, members).proxy
  end

  # Returns a list of members who have upvoted this card
  # NOTE: this fetches a list each time it's called to avoid case where
  # card is voted (or vote is removed) after card is fetched. Optimizing
  # accuracy over network performance
  #
  # @return [Array<Trello::Member>]
  def voters
    Member.from_response client.get("/cards/#{id}/membersVoted")
  end

  # Saves a record.
  #
  # @raise [Trello::Error] if the card could not be saved
  #
  # @return [String] The JSON representation of the saved card returned by
  #     the Trello API.
  def save
    # If we have an id, just update our fields.
    return update! if id

    from_response client.post("/cards", {
      name:   name,
      desc:   desc,
      idList: list_id,
      idMembers: member_ids,
      idLabels: card_labels,
      pos: pos,
      due: due,
      dueComplete: due_complete,
      idCardSource: source_card_id,
      keepFromSource: source_card_properties
    })
  end

  # Update an existing record.
  #
  # Warning: this updates all fields using values already in memory. If
  # an external resource has updated these fields, you should refresh!
  # this object before making your changes, and before updating the record.
  #
  # @raise [Trello::Error] if the card could not be updated.
  #
  # @return [Trello::Card] updated self
  def update!
    @previously_changed = changes
    # extract only new values to build payload
    payload = Hash[changes.map { |key, values| [SYMBOL_TO_STRING[key.to_sym].to_sym, values[1]] }]

    response = client.put("/cards/#{id}", payload)
    updated_card = from_response(response)

    @changed_attributes.clear if @changed_attributes.respond_to?(:clear)
    changes_applied if respond_to?(:changes_applied)

    attributes[:id]                     = updated_card.id
    attributes[:short_id]               = updated_card.short_id
    attributes[:name]                   = updated_card.name
    attributes[:desc]                   = updated_card.desc
    attributes[:due]                    = updated_card.due
    attributes[:due_complete]           = updated_card.due_complete
    attributes[:closed]                 = updated_card.closed
    attributes[:url]                    = updated_card.url
    attributes[:short_url]              = updated_card.short_url
    attributes[:board_id]               = updated_card.board_id
    attributes[:member_ids]             = updated_card.member_ids
    attributes[:list_id]                = updated_card.list_id
    attributes[:pos]                    = updated_card.pos
    attributes[:labels]                 = updated_card.labels
    attributes[:card_labels]            = updated_card.card_labels
    attributes[:last_activity_date]     = updated_card.last_activity_date
    attributes[:cover_image_id]         = updated_card.cover_image_id
    attributes[:badges]                 = updated_card.badges
    attributes[:card_members]           = updated_card.card_members
    attributes[:source_card_id]         = updated_card.source_card_id
    attributes[:source_card_properties] = updated_card.source_card_properties

    self
  end

  # Delete this card
  #
  # @return [String] the JSON response from the Trello API
  def delete
    client.delete("/cards/#{id}")
  end

  # Check if the card is not active anymore.
  def closed?
    closed
  end

  # Close the card.
  #
  # This only marks your local copy card as closed. Use `close!` if you
  # want to close the card and persist the change to the Trello API.
  #
  # @return [Boolean] always returns true
  #
  # @return [String] The JSON representation of the closed card returned by
  #     the Trello API.
  def close
    self.closed = true
  end

  def close!
    close
    save
  end

  # Is the record valid?
  def valid?
    !(name && list_id).nil?
  end

  # Add a comment with the supplied text.
  def add_comment(text)
    client.post("/cards/#{id}/actions/comments", text: text)
  end

  # Add a checklist to this card
  def add_checklist(checklist, name: nil, position: nil)
    payload = { idChecklistSource: checklist.id }
    payload[:name] = name if name 
    payload[:pos] = position if position

    client.post("/cards/#{id}/checklists", payload)
  end

  # create a new checklist and add it to this card
  def create_new_checklist(name)
    client.post("/cards/#{id}/checklists", { name: name })
  end

  # Move this card to the given list
  def move_to_list(list)
    list_number = list.is_a?(String) ? list : list.id
    unless list_id == list_number
      client.put("/cards/#{id}/idList", {
        value: list_number
      })
    end
  end

  # Moves this card to the given list no matter which board it is on
  def move_to_list_on_any_board(list_id)
    list = List.find(list_id)
    if board.id == list.board_id
      move_to_list(list_id)
    else
      move_to_board(Board.find(list.board_id), list)
    end
  end

  # Move this card to the given board (and optional list on this board)
  def move_to_board(new_board, new_list = nil)
    unless board_id == new_board.id
      payload = { value: new_board.id }
      payload[:idList] = new_list.id if new_list
      client.put("/cards/#{id}/idBoard", payload)
    end
  end

  # Add a member to this card
  def add_member(member)
    client.post("/cards/#{id}/idMembers", {
      value: member.id
    })
  end

  # Remove a member from this card
  def remove_member(member)
    client.delete("/cards/#{id}/idMembers/#{member.id}")
  end

  # Current authenticated user upvotes a card
  def upvote
    begin
      client.post("/cards/#{id}/membersVoted", {
        value: me.id
      })
    rescue Trello::Error => e
      fail e unless e.message =~ /has already voted/i
    end

    self
  end

  # Recind upvote. Noop if authenticated user hasn't previously voted
  def remove_upvote
    begin
      client.delete("/cards/#{id}/membersVoted/#{me.id}")
    rescue Trello::Error => e
      fail e unless e.message =~ /has not voted/i
    end

    self
  end

  # Add a label
  def add_label(label)
    unless label.valid?
      errors.add(:label, "is not valid.")
      return Trello.logger.warn "Label is not valid." unless label.valid?
    end
    client.post("/cards/#{id}/idLabels", {value: label.id})
  end

  # Remove a label
  def remove_label(label)
    unless label.valid?
      errors.add(:label, "is not valid.")
      return Trello.logger.warn "Label is not valid." unless label.valid?
    end
    client.delete("/cards/#{id}/idLabels/#{label.id}")
  end

  # Add an attachment to this card
  def add_attachment(attachment, name = '')
    # Is it a file object or a string (url)?
    if attachment.respond_to?(:path) && attachment.respond_to?(:read)
      client.post("/cards/#{id}/attachments", {
          file: attachment,
          name: name
        })
    else
      client.post("/cards/#{id}/attachments", {
          url: attachment,
          name: name
        })
    end
  end

  # Retrieve a list of attachments
  def attachments
    attachments = Attachment.from_response client.get("/cards/#{id}/attachments")
    MultiAssociation.new(self, attachments).proxy
  end

  # Remove an attachment from this card
  def remove_attachment(attachment)
    client.delete("/cards/#{id}/attachments/#{attachment.id}")
  end

  # :nodoc:
  def request_prefix
    "/cards/#{id}"
  end

  # Retrieve a list of comments
  def comments
    comments = Comment.from_response client.get("/cards/#{id}/actions", filter: "commentCard")
  end

  # Find the creation date
  def created_at
    @created_at ||= Time.at(id[0..7].to_i(16)) rescue nil
  end

  private

  def me
    @me ||= Member.find(:me)
  end

  def fields_has_key?(fields, key)
    fields.key?(SYMBOL_TO_STRING[key]) || fields.key?(key)
  end

  def initialize_fields(fields)
    attributes[:id]                     = fields[SYMBOL_TO_STRING[:id]] || attributes[:id]
    attributes[:short_id]               = fields[SYMBOL_TO_STRING[:short_id]] || attributes[:short_id]
    attributes[:name]                   = fields[SYMBOL_TO_STRING[:name]] || fields[:name] || attributes[:name]
    attributes[:desc]                   = fields[SYMBOL_TO_STRING[:desc]] || fields[:desc] || attributes[:desc]
    attributes[:due]                    = Time.iso8601(fields[SYMBOL_TO_STRING[:due]]) rescue nil if fields.has_key?(SYMBOL_TO_STRING[:due])
    attributes[:due]                    = fields[:due] if fields.has_key?(:due)
    attributes[:due_complete]           = fields[SYMBOL_TO_STRING[:due_complete]] if fields.has_key?(SYMBOL_TO_STRING[:due_complete])
    attributes[:due_complete]           ||= false
    attributes[:closed]                 = fields[SYMBOL_TO_STRING[:closed]] if fields.has_key?(SYMBOL_TO_STRING[:closed])
    attributes[:url]                    = fields[SYMBOL_TO_STRING[:url]] || attributes[:url]
    attributes[:short_url]              = fields[SYMBOL_TO_STRING[:short_url]] || attributes[:short_url]
    attributes[:board_id]               = fields[SYMBOL_TO_STRING[:board_id]] || attributes[:board_id]
    attributes[:member_ids]             = fields[SYMBOL_TO_STRING[:member_ids]] || fields[:member_ids] || attributes[:member_ids]
    attributes[:list_id]                = fields[SYMBOL_TO_STRING[:list_id]] || fields[:list_id] || attributes[:list_id]
    attributes[:pos]                    = fields[SYMBOL_TO_STRING[:pos]] || fields[:pos] || attributes[:pos]
    attributes[:labels]                 = (fields[SYMBOL_TO_STRING[:labels]] || []).map { |lbl| Trello::Label.new(lbl) }.presence || attributes[:labels].presence || []
    attributes[:card_labels]            = fields[SYMBOL_TO_STRING[:card_labels]] || fields[:card_labels] || attributes[:card_labels]
    attributes[:last_activity_date]     = Time.iso8601(fields[SYMBOL_TO_STRING[:last_activity_date]]) rescue nil if fields.has_key?(SYMBOL_TO_STRING[:last_activity_date])
    attributes[:cover_image_id]         = fields[SYMBOL_TO_STRING[:cover_image_id]] || attributes[:cover_image_id]
    attributes[:badges]                 = fields[SYMBOL_TO_STRING[:badges]] || attributes[:badges]
    attributes[:card_members]           = fields[SYMBOL_TO_STRING[:card_members]] || attributes[:card_members]
    attributes[:source_card_id]         = fields[SYMBOL_TO_STRING[:source_card_id]] || fields[:source_card_id] || attributes[:source_card_id]
    attributes[:source_card_properties] = fields[SYMBOL_TO_STRING[:source_card_properties]] || fields[:source_card_properties] || attributes[:source_card_properties]
    self
  end

end

#cover_image_idString

Returns A 24-character hex string.

Returns:

  • (String)

    A 24-character hex string


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# File 'lib/trello/card.rb', line 45

class Card < BasicData
  register_attributes :id, :short_id, :name, :desc, :due, :due_complete, :closed, :url, :short_url,
    :board_id, :member_ids, :list_id, :pos, :last_activity_date, :labels, :card_labels,
    :cover_image_id, :badges, :card_members, :source_card_id, :source_card_properties,
    readonly: [ :id, :short_id, :url, :short_url, :last_activity_date, :badges, :card_members ]
  validates_presence_of :id, :name, :list_id
  validates_length_of   :name, in: 1..16384
  validates_length_of   :desc, in: 0..16384

  include HasActions

  SYMBOL_TO_STRING = {
    id: 'id',
    short_id: 'idShort',
    name: 'name',
    desc: 'desc',
    due: 'due',
    due_complete: 'dueComplete',
    closed: 'closed',
    url: 'url',
    short_url: 'shortUrl',
    board_id: 'idBoard',
    member_ids: 'idMembers',
    cover_image_id: 'idAttachmentCover',
    list_id: 'idList',
    pos: 'pos',
    last_activity_date: 'dateLastActivity',
    card_labels: 'idLabels',
    labels: 'labels',
    badges: 'badges',
    card_members: 'members',
    source_card_id: "idCardSource",
    source_card_properties: "keepFromSource"
  }

  class << self
    # Find a specific card by its id.
    #
    # @raise [Trello::Error] if the card could not be found.
    #
    # @return [Trello::Card]
    def find(id, params = {})
      client.find(:card, id, params)
    end

    # Create a new card and save it on Trello.
    #
    # If using source_card_id to duplicate a card, make sure to save
    # the source card to Trello before calling this method to assure
    # the correct data is used in the duplication.
    #
    # @param [Hash] options
    # @option options [String] :name The name of the new card.
    # @option options [String] :list_id ID of the list that the card should
    #     be added to.
    # @option options [String] :desc A string with a
    #     length from 0 to 16384.
    # @option options [String] :member_ids A comma-separated list of
    #     objectIds (24-character hex strings).
    # @option options [String] :card_labels A comma-separated list of
    #     objectIds (24-character hex strings).
    # @option options [Date] :due A date, or `nil`.
    # @option options [String] :pos A position. `"top"`, `"bottom"`, or a
    #     positive number. Defaults to `"bottom"`.
    # @option options [String] :source_card_id ID of the card to copy
    # @option options [String] :source_card_properties A single, or array of,
    #     string properties to copy from source card.
    #     `"all"`, `"checklists"`, `"due"`, `"members"`, or `nil`.
    #     Defaults to `"all"`.
    #
    # @raise [Trello::Error] if the card could not be created.
    #
    # @return [Trello::Card]
    def create(options)
      client.create(:card,
        'name' => options[:name],
        'idList' => options[:list_id],
        'desc'   => options[:desc],
        'idMembers' => options[:member_ids],
        'idLabels' => options[:card_labels],
        'due' => options[:due],
        'due_complete' => options[:due_complete] || false,
        'pos' => options[:pos],
        'idCardSource' => options[:source_card_id],
        'keepFromSource' => options.key?(:source_card_properties) ? options[:source_card_properties] : 'all'
      )
    end
  end

  # Update the fields of a card.
  #
  # Supply a hash of string keyed data retrieved from the Trello API representing
  # a card.
  #
  # Note that this this method does not save anything new to the Trello API,
  # it just assigns the input attributes to your local object. If you use
  # this method to assign attributes, call `save` or `update!` afterwards if
  # you want to persist your changes to Trello.
  #
  # @param [Hash] fields
  # @option fields [String] :id
  # @option fields [String] :short_id
  # @option fields [String] :name The new name of the card.
  # @option fields [String] :desc A string with a length from 0 to
  #     16384.
  # @option fields [Date] :due A date, or `nil`.
  # @option fields [Boolean] :due_complete
  # @option fields [Boolean] :closed
  # @option fields [String] :url
  # @option fields [String] :short_url
  # @option fields [String] :board_id
  # @option fields [String] :member_ids A comma-separated list of objectIds
  #     (24-character hex strings).
  # @option fields [String] :pos A position. `"top"`, `"bottom"`, or a
  #     positive number. Defaults to `"bottom"`.
  # @option fields [Array]  :labels An Array of Trello::Label objects
  #     derived from the JSON response
  # @option fields [String] :card_labels A comma-separated list of
  #     objectIds (24-character hex strings).
  # @option fields [Object] :cover_image_id
  # @option fields [Object] :badges
  # @option fields [Object] :card_members
  # @option fields [String] :source_card_id
  # @option fields [Array]  :source_card_properties
  #
  # @return [Trello::Card] self
  def update_fields(fields)
    %i[
      name desc due due_complete closed
      board_id member_ids list_id pos
      card_labels cover_image_id
    ].each do |key|
      send("#{key}_will_change!") if fields_has_key?(fields, key)
    end

    initialize_fields(fields)
  end

  def initialize(fields = {})
    initialize_fields(fields)
  end

  # Returns a reference to the board this card is part of.
  one :board, path: :boards, using: :board_id

  # Returns a reference to the cover image attachment
  def cover_image(params = {})
    response = client.get("/cards/#{id}/attachments/#{cover_image_id}", params)
    CoverImage.from_response(response)
  end

  # Returns a list of checklists associated with the card.
  #
  # The options hash may have a filter key which can have its value set as any
  # of the following values:
  #    :filter => [ :none, :all ] # default :all
  many :checklists, filter: :all

  # Returns a list of plugins associated with the card
  many :plugin_data, path: "pluginData"

  # List of custom field values on the card, only the ones that have been set
  many :custom_field_items, path: 'customFieldItems'

  def check_item_states
    states = CheckItemState.from_response client.get("/cards/#{self.id}/checkItemStates")
    MultiAssociation.new(self, states).proxy
  end

  # Returns a reference to the list this card is currently in.
  one :list, path: :lists, using: :list_id

  # Returns a list of members who are assigned to this card.
  #
  # @return [Array<Trello::Member>]
  def members
    members = Member.from_response client.get("/cards/#{self.id}/members")
    MultiAssociation.new(self, members).proxy
  end

  # Returns a list of members who have upvoted this card
  # NOTE: this fetches a list each time it's called to avoid case where
  # card is voted (or vote is removed) after card is fetched. Optimizing
  # accuracy over network performance
  #
  # @return [Array<Trello::Member>]
  def voters
    Member.from_response client.get("/cards/#{id}/membersVoted")
  end

  # Saves a record.
  #
  # @raise [Trello::Error] if the card could not be saved
  #
  # @return [String] The JSON representation of the saved card returned by
  #     the Trello API.
  def save
    # If we have an id, just update our fields.
    return update! if id

    from_response client.post("/cards", {
      name:   name,
      desc:   desc,
      idList: list_id,
      idMembers: member_ids,
      idLabels: card_labels,
      pos: pos,
      due: due,
      dueComplete: due_complete,
      idCardSource: source_card_id,
      keepFromSource: source_card_properties
    })
  end

  # Update an existing record.
  #
  # Warning: this updates all fields using values already in memory. If
  # an external resource has updated these fields, you should refresh!
  # this object before making your changes, and before updating the record.
  #
  # @raise [Trello::Error] if the card could not be updated.
  #
  # @return [Trello::Card] updated self
  def update!
    @previously_changed = changes
    # extract only new values to build payload
    payload = Hash[changes.map { |key, values| [SYMBOL_TO_STRING[key.to_sym].to_sym, values[1]] }]

    response = client.put("/cards/#{id}", payload)
    updated_card = from_response(response)

    @changed_attributes.clear if @changed_attributes.respond_to?(:clear)
    changes_applied if respond_to?(:changes_applied)

    attributes[:id]                     = updated_card.id
    attributes[:short_id]               = updated_card.short_id
    attributes[:name]                   = updated_card.name
    attributes[:desc]                   = updated_card.desc
    attributes[:due]                    = updated_card.due
    attributes[:due_complete]           = updated_card.due_complete
    attributes[:closed]                 = updated_card.closed
    attributes[:url]                    = updated_card.url
    attributes[:short_url]              = updated_card.short_url
    attributes[:board_id]               = updated_card.board_id
    attributes[:member_ids]             = updated_card.member_ids
    attributes[:list_id]                = updated_card.list_id
    attributes[:pos]                    = updated_card.pos
    attributes[:labels]                 = updated_card.labels
    attributes[:card_labels]            = updated_card.card_labels
    attributes[:last_activity_date]     = updated_card.last_activity_date
    attributes[:cover_image_id]         = updated_card.cover_image_id
    attributes[:badges]                 = updated_card.badges
    attributes[:card_members]           = updated_card.card_members
    attributes[:source_card_id]         = updated_card.source_card_id
    attributes[:source_card_properties] = updated_card.source_card_properties

    self
  end

  # Delete this card
  #
  # @return [String] the JSON response from the Trello API
  def delete
    client.delete("/cards/#{id}")
  end

  # Check if the card is not active anymore.
  def closed?
    closed
  end

  # Close the card.
  #
  # This only marks your local copy card as closed. Use `close!` if you
  # want to close the card and persist the change to the Trello API.
  #
  # @return [Boolean] always returns true
  #
  # @return [String] The JSON representation of the closed card returned by
  #     the Trello API.
  def close
    self.closed = true
  end

  def close!
    close
    save
  end

  # Is the record valid?
  def valid?
    !(name && list_id).nil?
  end

  # Add a comment with the supplied text.
  def add_comment(text)
    client.post("/cards/#{id}/actions/comments", text: text)
  end

  # Add a checklist to this card
  def add_checklist(checklist, name: nil, position: nil)
    payload = { idChecklistSource: checklist.id }
    payload[:name] = name if name 
    payload[:pos] = position if position

    client.post("/cards/#{id}/checklists", payload)
  end

  # create a new checklist and add it to this card
  def create_new_checklist(name)
    client.post("/cards/#{id}/checklists", { name: name })
  end

  # Move this card to the given list
  def move_to_list(list)
    list_number = list.is_a?(String) ? list : list.id
    unless list_id == list_number
      client.put("/cards/#{id}/idList", {
        value: list_number
      })
    end
  end

  # Moves this card to the given list no matter which board it is on
  def move_to_list_on_any_board(list_id)
    list = List.find(list_id)
    if board.id == list.board_id
      move_to_list(list_id)
    else
      move_to_board(Board.find(list.board_id), list)
    end
  end

  # Move this card to the given board (and optional list on this board)
  def move_to_board(new_board, new_list = nil)
    unless board_id == new_board.id
      payload = { value: new_board.id }
      payload[:idList] = new_list.id if new_list
      client.put("/cards/#{id}/idBoard", payload)
    end
  end

  # Add a member to this card
  def add_member(member)
    client.post("/cards/#{id}/idMembers", {
      value: member.id
    })
  end

  # Remove a member from this card
  def remove_member(member)
    client.delete("/cards/#{id}/idMembers/#{member.id}")
  end

  # Current authenticated user upvotes a card
  def upvote
    begin
      client.post("/cards/#{id}/membersVoted", {
        value: me.id
      })
    rescue Trello::Error => e
      fail e unless e.message =~ /has already voted/i
    end

    self
  end

  # Recind upvote. Noop if authenticated user hasn't previously voted
  def remove_upvote
    begin
      client.delete("/cards/#{id}/membersVoted/#{me.id}")
    rescue Trello::Error => e
      fail e unless e.message =~ /has not voted/i
    end

    self
  end

  # Add a label
  def add_label(label)
    unless label.valid?
      errors.add(:label, "is not valid.")
      return Trello.logger.warn "Label is not valid." unless label.valid?
    end
    client.post("/cards/#{id}/idLabels", {value: label.id})
  end

  # Remove a label
  def remove_label(label)
    unless label.valid?
      errors.add(:label, "is not valid.")
      return Trello.logger.warn "Label is not valid." unless label.valid?
    end
    client.delete("/cards/#{id}/idLabels/#{label.id}")
  end

  # Add an attachment to this card
  def add_attachment(attachment, name = '')
    # Is it a file object or a string (url)?
    if attachment.respond_to?(:path) && attachment.respond_to?(:read)
      client.post("/cards/#{id}/attachments", {
          file: attachment,
          name: name
        })
    else
      client.post("/cards/#{id}/attachments", {
          url: attachment,
          name: name
        })
    end
  end

  # Retrieve a list of attachments
  def attachments
    attachments = Attachment.from_response client.get("/cards/#{id}/attachments")
    MultiAssociation.new(self, attachments).proxy
  end

  # Remove an attachment from this card
  def remove_attachment(attachment)
    client.delete("/cards/#{id}/attachments/#{attachment.id}")
  end

  # :nodoc:
  def request_prefix
    "/cards/#{id}"
  end

  # Retrieve a list of comments
  def comments
    comments = Comment.from_response client.get("/cards/#{id}/actions", filter: "commentCard")
  end

  # Find the creation date
  def created_at
    @created_at ||= Time.at(id[0..7].to_i(16)) rescue nil
  end

  private

  def me
    @me ||= Member.find(:me)
  end

  def fields_has_key?(fields, key)
    fields.key?(SYMBOL_TO_STRING[key]) || fields.key?(key)
  end

  def initialize_fields(fields)
    attributes[:id]                     = fields[SYMBOL_TO_STRING[:id]] || attributes[:id]
    attributes[:short_id]               = fields[SYMBOL_TO_STRING[:short_id]] || attributes[:short_id]
    attributes[:name]                   = fields[SYMBOL_TO_STRING[:name]] || fields[:name] || attributes[:name]
    attributes[:desc]                   = fields[SYMBOL_TO_STRING[:desc]] || fields[:desc] || attributes[:desc]
    attributes[:due]                    = Time.iso8601(fields[SYMBOL_TO_STRING[:due]]) rescue nil if fields.has_key?(SYMBOL_TO_STRING[:due])
    attributes[:due]                    = fields[:due] if fields.has_key?(:due)
    attributes[:due_complete]           = fields[SYMBOL_TO_STRING[:due_complete]] if fields.has_key?(SYMBOL_TO_STRING[:due_complete])
    attributes[:due_complete]           ||= false
    attributes[:closed]                 = fields[SYMBOL_TO_STRING[:closed]] if fields.has_key?(SYMBOL_TO_STRING[:closed])
    attributes[:url]                    = fields[SYMBOL_TO_STRING[:url]] || attributes[:url]
    attributes[:short_url]              = fields[SYMBOL_TO_STRING[:short_url]] || attributes[:short_url]
    attributes[:board_id]               = fields[SYMBOL_TO_STRING[:board_id]] || attributes[:board_id]
    attributes[:member_ids]             = fields[SYMBOL_TO_STRING[:member_ids]] || fields[:member_ids] || attributes[:member_ids]
    attributes[:list_id]                = fields[SYMBOL_TO_STRING[:list_id]] || fields[:list_id] || attributes[:list_id]
    attributes[:pos]                    = fields[SYMBOL_TO_STRING[:pos]] || fields[:pos] || attributes[:pos]
    attributes[:labels]                 = (fields[SYMBOL_TO_STRING[:labels]] || []).map { |lbl| Trello::Label.new(lbl) }.presence || attributes[:labels].presence || []
    attributes[:card_labels]            = fields[SYMBOL_TO_STRING[:card_labels]] || fields[:card_labels] || attributes[:card_labels]
    attributes[:last_activity_date]     = Time.iso8601(fields[SYMBOL_TO_STRING[:last_activity_date]]) rescue nil if fields.has_key?(SYMBOL_TO_STRING[:last_activity_date])
    attributes[:cover_image_id]         = fields[SYMBOL_TO_STRING[:cover_image_id]] || attributes[:cover_image_id]
    attributes[:badges]                 = fields[SYMBOL_TO_STRING[:badges]] || attributes[:badges]
    attributes[:card_members]           = fields[SYMBOL_TO_STRING[:card_members]] || attributes[:card_members]
    attributes[:source_card_id]         = fields[SYMBOL_TO_STRING[:source_card_id]] || fields[:source_card_id] || attributes[:source_card_id]
    attributes[:source_card_properties] = fields[SYMBOL_TO_STRING[:source_card_properties]] || fields[:source_card_properties] || attributes[:source_card_properties]
    self
  end

end

#descString

Returns:


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# File 'lib/trello/card.rb', line 45

class Card < BasicData
  register_attributes :id, :short_id, :name, :desc, :due, :due_complete, :closed, :url, :short_url,
    :board_id, :member_ids, :list_id, :pos, :last_activity_date, :labels, :card_labels,
    :cover_image_id, :badges, :card_members, :source_card_id, :source_card_properties,
    readonly: [ :id, :short_id, :url, :short_url, :last_activity_date, :badges, :card_members ]
  validates_presence_of :id, :name, :list_id
  validates_length_of   :name, in: 1..16384
  validates_length_of   :desc, in: 0..16384

  include HasActions

  SYMBOL_TO_STRING = {
    id: 'id',
    short_id: 'idShort',
    name: 'name',
    desc: 'desc',
    due: 'due',
    due_complete: 'dueComplete',
    closed: 'closed',
    url: 'url',
    short_url: 'shortUrl',
    board_id: 'idBoard',
    member_ids: 'idMembers',
    cover_image_id: 'idAttachmentCover',
    list_id: 'idList',
    pos: 'pos',
    last_activity_date: 'dateLastActivity',
    card_labels: 'idLabels',
    labels: 'labels',
    badges: 'badges',
    card_members: 'members',
    source_card_id: "idCardSource",
    source_card_properties: "keepFromSource"
  }

  class << self
    # Find a specific card by its id.
    #
    # @raise [Trello::Error] if the card could not be found.
    #
    # @return [Trello::Card]
    def find(id, params = {})
      client.find(:card, id, params)
    end

    # Create a new card and save it on Trello.
    #
    # If using source_card_id to duplicate a card, make sure to save
    # the source card to Trello before calling this method to assure
    # the correct data is used in the duplication.
    #
    # @param [Hash] options
    # @option options [String] :name The name of the new card.
    # @option options [String] :list_id ID of the list that the card should
    #     be added to.
    # @option options [String] :desc A string with a
    #     length from 0 to 16384.
    # @option options [String] :member_ids A comma-separated list of
    #     objectIds (24-character hex strings).
    # @option options [String] :card_labels A comma-separated list of
    #     objectIds (24-character hex strings).
    # @option options [Date] :due A date, or `nil`.
    # @option options [String] :pos A position. `"top"`, `"bottom"`, or a
    #     positive number. Defaults to `"bottom"`.
    # @option options [String] :source_card_id ID of the card to copy
    # @option options [String] :source_card_properties A single, or array of,
    #     string properties to copy from source card.
    #     `"all"`, `"checklists"`, `"due"`, `"members"`, or `nil`.
    #     Defaults to `"all"`.
    #
    # @raise [Trello::Error] if the card could not be created.
    #
    # @return [Trello::Card]
    def create(options)
      client.create(:card,
        'name' => options[:name],
        'idList' => options[:list_id],
        'desc'   => options[:desc],
        'idMembers' => options[:member_ids],
        'idLabels' => options[:card_labels],
        'due' => options[:due],
        'due_complete' => options[:due_complete] || false,
        'pos' => options[:pos],
        'idCardSource' => options[:source_card_id],
        'keepFromSource' => options.key?(:source_card_properties) ? options[:source_card_properties] : 'all'
      )
    end
  end

  # Update the fields of a card.
  #
  # Supply a hash of string keyed data retrieved from the Trello API representing
  # a card.
  #
  # Note that this this method does not save anything new to the Trello API,
  # it just assigns the input attributes to your local object. If you use
  # this method to assign attributes, call `save` or `update!` afterwards if
  # you want to persist your changes to Trello.
  #
  # @param [Hash] fields
  # @option fields [String] :id
  # @option fields [String] :short_id
  # @option fields [String] :name The new name of the card.
  # @option fields [String] :desc A string with a length from 0 to
  #     16384.
  # @option fields [Date] :due A date, or `nil`.
  # @option fields [Boolean] :due_complete
  # @option fields [Boolean] :closed
  # @option fields [String] :url
  # @option fields [String] :short_url
  # @option fields [String] :board_id
  # @option fields [String] :member_ids A comma-separated list of objectIds
  #     (24-character hex strings).
  # @option fields [String] :pos A position. `"top"`, `"bottom"`, or a
  #     positive number. Defaults to `"bottom"`.
  # @option fields [Array]  :labels An Array of Trello::Label objects
  #     derived from the JSON response
  # @option fields [String] :card_labels A comma-separated list of
  #     objectIds (24-character hex strings).
  # @option fields [Object] :cover_image_id
  # @option fields [Object] :badges
  # @option fields [Object] :card_members
  # @option fields [String] :source_card_id
  # @option fields [Array]  :source_card_properties
  #
  # @return [Trello::Card] self
  def update_fields(fields)
    %i[
      name desc due due_complete closed
      board_id member_ids list_id pos
      card_labels cover_image_id
    ].each do |key|
      send("#{key}_will_change!") if fields_has_key?(fields, key)
    end

    initialize_fields(fields)
  end

  def initialize(fields = {})
    initialize_fields(fields)
  end

  # Returns a reference to the board this card is part of.
  one :board, path: :boards, using: :board_id

  # Returns a reference to the cover image attachment
  def cover_image(params = {})
    response = client.get("/cards/#{id}/attachments/#{cover_image_id}", params)
    CoverImage.from_response(response)
  end

  # Returns a list of checklists associated with the card.
  #
  # The options hash may have a filter key which can have its value set as any
  # of the following values:
  #    :filter => [ :none, :all ] # default :all
  many :checklists, filter: :all

  # Returns a list of plugins associated with the card
  many :plugin_data, path: "pluginData"

  # List of custom field values on the card, only the ones that have been set
  many :custom_field_items, path: 'customFieldItems'

  def check_item_states
    states = CheckItemState.from_response client.get("/cards/#{self.id}/checkItemStates")
    MultiAssociation.new(self, states).proxy
  end

  # Returns a reference to the list this card is currently in.
  one :list, path: :lists, using: :list_id

  # Returns a list of members who are assigned to this card.
  #
  # @return [Array<Trello::Member>]
  def members
    members = Member.from_response client.get("/cards/#{self.id}/members")
    MultiAssociation.new(self, members).proxy
  end

  # Returns a list of members who have upvoted this card
  # NOTE: this fetches a list each time it's called to avoid case where
  # card is voted (or vote is removed) after card is fetched. Optimizing
  # accuracy over network performance
  #
  # @return [Array<Trello::Member>]
  def voters
    Member.from_response client.get("/cards/#{id}/membersVoted")
  end

  # Saves a record.
  #
  # @raise [Trello::Error] if the card could not be saved
  #
  # @return [String] The JSON representation of the saved card returned by
  #     the Trello API.
  def save
    # If we have an id, just update our fields.
    return update! if id

    from_response client.post("/cards", {
      name:   name,
      desc:   desc,
      idList: list_id,
      idMembers: member_ids,
      idLabels: card_labels,
      pos: pos,
      due: due,
      dueComplete: due_complete,
      idCardSource: source_card_id,
      keepFromSource: source_card_properties
    })
  end

  # Update an existing record.
  #
  # Warning: this updates all fields using values already in memory. If
  # an external resource has updated these fields, you should refresh!
  # this object before making your changes, and before updating the record.
  #
  # @raise [Trello::Error] if the card could not be updated.
  #
  # @return [Trello::Card] updated self
  def update!
    @previously_changed = changes
    # extract only new values to build payload
    payload = Hash[changes.map { |key, values| [SYMBOL_TO_STRING[key.to_sym].to_sym, values[1]] }]

    response = client.put("/cards/#{id}", payload)
    updated_card = from_response(response)

    @changed_attributes.clear if @changed_attributes.respond_to?(:clear)
    changes_applied if respond_to?(:changes_applied)

    attributes[:id]                     = updated_card.id
    attributes[:short_id]               = updated_card.short_id
    attributes[:name]                   = updated_card.name
    attributes[:desc]                   = updated_card.desc
    attributes[:due]                    = updated_card.due
    attributes[:due_complete]           = updated_card.due_complete
    attributes[:closed]                 = updated_card.closed
    attributes[:url]                    = updated_card.url
    attributes[:short_url]              = updated_card.short_url
    attributes[:board_id]               = updated_card.board_id
    attributes[:member_ids]             = updated_card.member_ids
    attributes[:list_id]                = updated_card.list_id
    attributes[:pos]                    = updated_card.pos
    attributes[:labels]                 = updated_card.labels
    attributes[:card_labels]            = updated_card.card_labels
    attributes[:last_activity_date]     = updated_card.last_activity_date
    attributes[:cover_image_id]         = updated_card.cover_image_id
    attributes[:badges]                 = updated_card.badges
    attributes[:card_members]           = updated_card.card_members
    attributes[:source_card_id]         = updated_card.source_card_id
    attributes[:source_card_properties] = updated_card.source_card_properties

    self
  end

  # Delete this card
  #
  # @return [String] the JSON response from the Trello API
  def delete
    client.delete("/cards/#{id}")
  end

  # Check if the card is not active anymore.
  def closed?
    closed
  end

  # Close the card.
  #
  # This only marks your local copy card as closed. Use `close!` if you
  # want to close the card and persist the change to the Trello API.
  #
  # @return [Boolean] always returns true
  #
  # @return [String] The JSON representation of the closed card returned by
  #     the Trello API.
  def close
    self.closed = true
  end

  def close!
    close
    save
  end

  # Is the record valid?
  def valid?
    !(name && list_id).nil?
  end

  # Add a comment with the supplied text.
  def add_comment(text)
    client.post("/cards/#{id}/actions/comments", text: text)
  end

  # Add a checklist to this card
  def add_checklist(checklist, name: nil, position: nil)
    payload = { idChecklistSource: checklist.id }
    payload[:name] = name if name 
    payload[:pos] = position if position

    client.post("/cards/#{id}/checklists", payload)
  end

  # create a new checklist and add it to this card
  def create_new_checklist(name)
    client.post("/cards/#{id}/checklists", { name: name })
  end

  # Move this card to the given list
  def move_to_list(list)
    list_number = list.is_a?(String) ? list : list.id
    unless list_id == list_number
      client.put("/cards/#{id}/idList", {
        value: list_number
      })
    end
  end

  # Moves this card to the given list no matter which board it is on
  def move_to_list_on_any_board(list_id)
    list = List.find(list_id)
    if board.id == list.board_id
      move_to_list(list_id)
    else
      move_to_board(Board.find(list.board_id), list)
    end
  end

  # Move this card to the given board (and optional list on this board)
  def move_to_board(new_board, new_list = nil)
    unless board_id == new_board.id
      payload = { value: new_board.id }
      payload[:idList] = new_list.id if new_list
      client.put("/cards/#{id}/idBoard", payload)
    end
  end

  # Add a member to this card
  def add_member(member)
    client.post("/cards/#{id}/idMembers", {
      value: member.id
    })
  end

  # Remove a member from this card
  def remove_member(member)
    client.delete("/cards/#{id}/idMembers/#{member.id}")
  end

  # Current authenticated user upvotes a card
  def upvote
    begin
      client.post("/cards/#{id}/membersVoted", {
        value: me.id
      })
    rescue Trello::Error => e
      fail e unless e.message =~ /has already voted/i
    end

    self
  end

  # Recind upvote. Noop if authenticated user hasn't previously voted
  def remove_upvote
    begin
      client.delete("/cards/#{id}/membersVoted/#{me.id}")
    rescue Trello::Error => e
      fail e unless e.message =~ /has not voted/i
    end

    self
  end

  # Add a label
  def add_label(label)
    unless label.valid?
      errors.add(:label, "is not valid.")
      return Trello.logger.warn "Label is not valid." unless label.valid?
    end
    client.post("/cards/#{id}/idLabels", {value: label.id})
  end

  # Remove a label
  def remove_label(label)
    unless label.valid?
      errors.add(:label, "is not valid.")
      return Trello.logger.warn "Label is not valid." unless label.valid?
    end
    client.delete("/cards/#{id}/idLabels/#{label.id}")
  end

  # Add an attachment to this card
  def add_attachment(attachment, name = '')
    # Is it a file object or a string (url)?
    if attachment.respond_to?(:path) && attachment.respond_to?(:read)
      client.post("/cards/#{id}/attachments", {
          file: attachment,
          name: name
        })
    else
      client.post("/cards/#{id}/attachments", {
          url: attachment,
          name: name
        })
    end
  end

  # Retrieve a list of attachments
  def attachments
    attachments = Attachment.from_response client.get("/cards/#{id}/attachments")
    MultiAssociation.new(self, attachments).proxy
  end

  # Remove an attachment from this card
  def remove_attachment(attachment)
    client.delete("/cards/#{id}/attachments/#{attachment.id}")
  end

  # :nodoc:
  def request_prefix
    "/cards/#{id}"
  end

  # Retrieve a list of comments
  def comments
    comments = Comment.from_response client.get("/cards/#{id}/actions", filter: "commentCard")
  end

  # Find the creation date
  def created_at
    @created_at ||= Time.at(id[0..7].to_i(16)) rescue nil
  end

  private

  def me
    @me ||= Member.find(:me)
  end

  def fields_has_key?(fields, key)
    fields.key?(SYMBOL_TO_STRING[key]) || fields.key?(key)
  end

  def initialize_fields(fields)
    attributes[:id]                     = fields[SYMBOL_TO_STRING[:id]] || attributes[:id]
    attributes[:short_id]               = fields[SYMBOL_TO_STRING[:short_id]] || attributes[:short_id]
    attributes[:name]                   = fields[SYMBOL_TO_STRING[:name]] || fields[:name] || attributes[:name]
    attributes[:desc]                   = fields[SYMBOL_TO_STRING[:desc]] || fields[:desc] || attributes[:desc]
    attributes[:due]                    = Time.iso8601(fields[SYMBOL_TO_STRING[:due]]) rescue nil if fields.has_key?(SYMBOL_TO_STRING[:due])
    attributes[:due]                    = fields[:due] if fields.has_key?(:due)
    attributes[:due_complete]           = fields[SYMBOL_TO_STRING[:due_complete]] if fields.has_key?(SYMBOL_TO_STRING[:due_complete])
    attributes[:due_complete]           ||= false
    attributes[:closed]                 = fields[SYMBOL_TO_STRING[:closed]] if fields.has_key?(SYMBOL_TO_STRING[:closed])
    attributes[:url]                    = fields[SYMBOL_TO_STRING[:url]] || attributes[:url]
    attributes[:short_url]              = fields[SYMBOL_TO_STRING[:short_url]] || attributes[:short_url]
    attributes[:board_id]               = fields[SYMBOL_TO_STRING[:board_id]] || attributes[:board_id]
    attributes[:member_ids]             = fields[SYMBOL_TO_STRING[:member_ids]] || fields[:member_ids] || attributes[:member_ids]
    attributes[:list_id]                = fields[SYMBOL_TO_STRING[:list_id]] || fields[:list_id] || attributes[:list_id]
    attributes[:pos]                    = fields[SYMBOL_TO_STRING[:pos]] || fields[:pos] || attributes[:pos]
    attributes[:labels]                 = (fields[SYMBOL_TO_STRING[:labels]] || []).map { |lbl| Trello::Label.new(lbl) }.presence || attributes[:labels].presence || []
    attributes[:card_labels]            = fields[SYMBOL_TO_STRING[:card_labels]] || fields[:card_labels] || attributes[:card_labels]
    attributes[:last_activity_date]     = Time.iso8601(fields[SYMBOL_TO_STRING[:last_activity_date]]) rescue nil if fields.has_key?(SYMBOL_TO_STRING[:last_activity_date])
    attributes[:cover_image_id]         = fields[SYMBOL_TO_STRING[:cover_image_id]] || attributes[:cover_image_id]
    attributes[:badges]                 = fields[SYMBOL_TO_STRING[:badges]] || attributes[:badges]
    attributes[:card_members]           = fields[SYMBOL_TO_STRING[:card_members]] || attributes[:card_members]
    attributes[:source_card_id]         = fields[SYMBOL_TO_STRING[:source_card_id]] || fields[:source_card_id] || attributes[:source_card_id]
    attributes[:source_card_properties] = fields[SYMBOL_TO_STRING[:source_card_properties]] || fields[:source_card_properties] || attributes[:source_card_properties]
    self
  end

end

#dueDatetime

Returns:

  • (Datetime)

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# File 'lib/trello/card.rb', line 45

class Card < BasicData
  register_attributes :id, :short_id, :name, :desc, :due, :due_complete, :closed, :url, :short_url,
    :board_id, :member_ids, :list_id, :pos, :last_activity_date, :labels, :card_labels,
    :cover_image_id, :badges, :card_members, :source_card_id, :source_card_properties,
    readonly: [ :id, :short_id, :url, :short_url, :last_activity_date, :badges, :card_members ]
  validates_presence_of :id, :name, :list_id
  validates_length_of   :name, in: 1..16384
  validates_length_of   :desc, in: 0..16384

  include HasActions

  SYMBOL_TO_STRING = {
    id: 'id',
    short_id: 'idShort',
    name: 'name',
    desc: 'desc',
    due: 'due',
    due_complete: 'dueComplete',
    closed: 'closed',
    url: 'url',
    short_url: 'shortUrl',
    board_id: 'idBoard',
    member_ids: 'idMembers',
    cover_image_id: 'idAttachmentCover',
    list_id: 'idList',
    pos: 'pos',
    last_activity_date: 'dateLastActivity',
    card_labels: 'idLabels',
    labels: 'labels',
    badges: 'badges',
    card_members: 'members',
    source_card_id: "idCardSource",
    source_card_properties: "keepFromSource"
  }

  class << self
    # Find a specific card by its id.
    #
    # @raise [Trello::Error] if the card could not be found.
    #
    # @return [Trello::Card]
    def find(id, params = {})
      client.find(:card, id, params)
    end

    # Create a new card and save it on Trello.
    #
    # If using source_card_id to duplicate a card, make sure to save
    # the source card to Trello before calling this method to assure
    # the correct data is used in the duplication.
    #
    # @param [Hash] options
    # @option options [String] :name The name of the new card.
    # @option options [String] :list_id ID of the list that the card should
    #     be added to.
    # @option options [String] :desc A string with a
    #     length from 0 to 16384.
    # @option options [String] :member_ids A comma-separated list of
    #     objectIds (24-character hex strings).
    # @option options [String] :card_labels A comma-separated list of
    #     objectIds (24-character hex strings).
    # @option options [Date] :due A date, or `nil`.
    # @option options [String] :pos A position. `"top"`, `"bottom"`, or a
    #     positive number. Defaults to `"bottom"`.
    # @option options [String] :source_card_id ID of the card to copy
    # @option options [String] :source_card_properties A single, or array of,
    #     string properties to copy from source card.
    #     `"all"`, `"checklists"`, `"due"`, `"members"`, or `nil`.
    #     Defaults to `"all"`.
    #
    # @raise [Trello::Error] if the card could not be created.
    #
    # @return [Trello::Card]
    def create(options)
      client.create(:card,
        'name' => options[:name],
        'idList' => options[:list_id],
        'desc'   => options[:desc],
        'idMembers' => options[:member_ids],
        'idLabels' => options[:card_labels],
        'due' => options[:due],
        'due_complete' => options[:due_complete] || false,
        'pos' => options[:pos],
        'idCardSource' => options[:source_card_id],
        'keepFromSource' => options.key?(:source_card_properties) ? options[:source_card_properties] : 'all'
      )
    end
  end

  # Update the fields of a card.
  #
  # Supply a hash of string keyed data retrieved from the Trello API representing
  # a card.
  #
  # Note that this this method does not save anything new to the Trello API,
  # it just assigns the input attributes to your local object. If you use
  # this method to assign attributes, call `save` or `update!` afterwards if
  # you want to persist your changes to Trello.
  #
  # @param [Hash] fields
  # @option fields [String] :id
  # @option fields [String] :short_id
  # @option fields [String] :name The new name of the card.
  # @option fields [String] :desc A string with a length from 0 to
  #     16384.
  # @option fields [Date] :due A date, or `nil`.
  # @option fields [Boolean] :due_complete
  # @option fields [Boolean] :closed
  # @option fields [String] :url
  # @option fields [String] :short_url
  # @option fields [String] :board_id
  # @option fields [String] :member_ids A comma-separated list of objectIds
  #     (24-character hex strings).
  # @option fields [String] :pos A position. `"top"`, `"bottom"`, or a
  #     positive number. Defaults to `"bottom"`.
  # @option fields [Array]  :labels An Array of Trello::Label objects
  #     derived from the JSON response
  # @option fields [String] :card_labels A comma-separated list of
  #     objectIds (24-character hex strings).
  # @option fields [Object] :cover_image_id
  # @option fields [Object] :badges
  # @option fields [Object] :card_members
  # @option fields [String] :source_card_id
  # @option fields [Array]  :source_card_properties
  #
  # @return [Trello::Card] self
  def update_fields(fields)
    %i[
      name desc due due_complete closed
      board_id member_ids list_id pos
      card_labels cover_image_id
    ].each do |key|
      send("#{key}_will_change!") if fields_has_key?(fields, key)
    end

    initialize_fields(fields)
  end

  def initialize(fields = {})
    initialize_fields(fields)
  end

  # Returns a reference to the board this card is part of.
  one :board, path: :boards, using: :board_id

  # Returns a reference to the cover image attachment
  def cover_image(params = {})
    response = client.get("/cards/#{id}/attachments/#{cover_image_id}", params)
    CoverImage.from_response(response)
  end

  # Returns a list of checklists associated with the card.
  #
  # The options hash may have a filter key which can have its value set as any
  # of the following values:
  #    :filter => [ :none, :all ] # default :all
  many :checklists, filter: :all

  # Returns a list of plugins associated with the card
  many :plugin_data, path: "pluginData"

  # List of custom field values on the card, only the ones that have been set
  many :custom_field_items, path: 'customFieldItems'

  def check_item_states
    states = CheckItemState.from_response client.get("/cards/#{self.id}/checkItemStates")
    MultiAssociation.new(self, states).proxy
  end

  # Returns a reference to the list this card is currently in.
  one :list, path: :lists, using: :list_id

  # Returns a list of members who are assigned to this card.
  #
  # @return [Array<Trello::Member>]
  def members
    members = Member.from_response client.get("/cards/#{self.id}/members")
    MultiAssociation.new(self, members).proxy
  end

  # Returns a list of members who have upvoted this card
  # NOTE: this fetches a list each time it's called to avoid case where
  # card is voted (or vote is removed) after card is fetched. Optimizing
  # accuracy over network performance
  #
  # @return [Array<Trello::Member>]
  def voters
    Member.from_response client.get("/cards/#{id}/membersVoted")
  end

  # Saves a record.
  #
  # @raise [Trello::Error] if the card could not be saved
  #
  # @return [String] The JSON representation of the saved card returned by
  #     the Trello API.
  def save
    # If we have an id, just update our fields.
    return update! if id

    from_response client.post("/cards", {
      name:   name,
      desc:   desc,
      idList: list_id,
      idMembers: member_ids,
      idLabels: card_labels,
      pos: pos,
      due: due,
      dueComplete: due_complete,
      idCardSource: source_card_id,
      keepFromSource: source_card_properties
    })
  end

  # Update an existing record.
  #
  # Warning: this updates all fields using values already in memory. If
  # an external resource has updated these fields, you should refresh!
  # this object before making your changes, and before updating the record.
  #
  # @raise [Trello::Error] if the card could not be updated.
  #
  # @return [Trello::Card] updated self
  def update!
    @previously_changed = changes
    # extract only new values to build payload
    payload = Hash[changes.map { |key, values| [SYMBOL_TO_STRING[key.to_sym].to_sym, values[1]] }]

    response = client.put("/cards/#{id}", payload)
    updated_card = from_response(response)

    @changed_attributes.clear if @changed_attributes.respond_to?(:clear)
    changes_applied if respond_to?(:changes_applied)

    attributes[:id]                     = updated_card.id
    attributes[:short_id]               = updated_card.short_id
    attributes[:name]                   = updated_card.name
    attributes[:desc]                   = updated_card.desc
    attributes[:due]                    = updated_card.due
    attributes[:due_complete]           = updated_card.due_complete
    attributes[:closed]                 = updated_card.closed
    attributes[:url]                    = updated_card.url
    attributes[:short_url]              = updated_card.short_url
    attributes[:board_id]               = updated_card.board_id
    attributes[:member_ids]             = updated_card.member_ids
    attributes[:list_id]                = updated_card.list_id
    attributes[:pos]                    = updated_card.pos
    attributes[:labels]                 = updated_card.labels
    attributes[:card_labels]            = updated_card.card_labels
    attributes[:last_activity_date]     = updated_card.last_activity_date
    attributes[:cover_image_id]         = updated_card.cover_image_id
    attributes[:badges]                 = updated_card.badges
    attributes[:card_members]           = updated_card.card_members
    attributes[:source_card_id]         = updated_card.source_card_id
    attributes[:source_card_properties] = updated_card.source_card_properties

    self
  end

  # Delete this card
  #
  # @return [String] the JSON response from the Trello API
  def delete
    client.delete("/cards/#{id}")
  end

  # Check if the card is not active anymore.
  def closed?
    closed
  end

  # Close the card.
  #
  # This only marks your local copy card as closed. Use `close!` if you
  # want to close the card and persist the change to the Trello API.
  #
  # @return [Boolean] always returns true
  #
  # @return [String] The JSON representation of the closed card returned by
  #     the Trello API.
  def close
    self.closed = true
  end

  def close!
    close
    save
  end

  # Is the record valid?
  def valid?
    !(name && list_id).nil?
  end

  # Add a comment with the supplied text.
  def add_comment(text)
    client.post("/cards/#{id}/actions/comments", text: text)
  end

  # Add a checklist to this card
  def add_checklist(checklist, name: nil, position: nil)
    payload = { idChecklistSource: checklist.id }
    payload[:name] = name if name 
    payload[:pos] = position if position

    client.post("/cards/#{id}/checklists", payload)
  end

  # create a new checklist and add it to this card
  def create_new_checklist(name)
    client.post("/cards/#{id}/checklists", { name: name })
  end

  # Move this card to the given list
  def move_to_list(list)
    list_number = list.is_a?(String) ? list : list.id
    unless list_id == list_number
      client.put("/cards/#{id}/idList", {
        value: list_number
      })
    end
  end

  # Moves this card to the given list no matter which board it is on
  def move_to_list_on_any_board(list_id)
    list = List.find(list_id)
    if board.id == list.board_id
      move_to_list(list_id)
    else
      move_to_board(Board.find(list.board_id), list)
    end
  end

  # Move this card to the given board (and optional list on this board)
  def move_to_board(new_board, new_list = nil)
    unless board_id == new_board.id
      payload = { value: new_board.id }
      payload[:idList] = new_list.id if new_list
      client.put("/cards/#{id}/idBoard", payload)
    end
  end

  # Add a member to this card
  def add_member(member)
    client.post("/cards/#{id}/idMembers", {
      value: member.id
    })
  end

  # Remove a member from this card
  def remove_member(member)
    client.delete("/cards/#{id}/idMembers/#{member.id}")
  end

  # Current authenticated user upvotes a card
  def upvote
    begin
      client.post("/cards/#{id}/membersVoted", {
        value: me.id
      })
    rescue Trello::Error => e
      fail e unless e.message =~ /has already voted/i
    end

    self
  end

  # Recind upvote. Noop if authenticated user hasn't previously voted
  def remove_upvote
    begin
      client.delete("/cards/#{id}/membersVoted/#{me.id}")
    rescue Trello::Error => e
      fail e unless e.message =~ /has not voted/i
    end

    self
  end

  # Add a label
  def add_label(label)
    unless label.valid?
      errors.add(:label, "is not valid.")
      return Trello.logger.warn "Label is not valid." unless label.valid?
    end
    client.post("/cards/#{id}/idLabels", {value: label.id})
  end

  # Remove a label
  def remove_label(label)
    unless label.valid?
      errors.add(:label, "is not valid.")
      return Trello.logger.warn "Label is not valid." unless label.valid?
    end
    client.delete("/cards/#{id}/idLabels/#{label.id}")
  end

  # Add an attachment to this card
  def add_attachment(attachment, name = '')
    # Is it a file object or a string (url)?
    if attachment.respond_to?(:path) && attachment.respond_to?(:read)
      client.post("/cards/#{id}/attachments", {
          file: attachment,
          name: name
        })
    else
      client.post("/cards/#{id}/attachments", {
          url: attachment,
          name: name
        })
    end
  end

  # Retrieve a list of attachments
  def attachments
    attachments = Attachment.from_response client.get("/cards/#{id}/attachments")
    MultiAssociation.new(self, attachments).proxy
  end

  # Remove an attachment from this card
  def remove_attachment(attachment)
    client.delete("/cards/#{id}/attachments/#{attachment.id}")
  end

  # :nodoc:
  def request_prefix
    "/cards/#{id}"
  end

  # Retrieve a list of comments
  def comments
    comments = Comment.from_response client.get("/cards/#{id}/actions", filter: "commentCard")
  end

  # Find the creation date
  def created_at
    @created_at ||= Time.at(id[0..7].to_i(16)) rescue nil
  end

  private

  def me
    @me ||= Member.find(:me)
  end

  def fields_has_key?(fields, key)
    fields.key?(SYMBOL_TO_STRING[key]) || fields.key?(key)
  end

  def initialize_fields(fields)
    attributes[:id]                     = fields[SYMBOL_TO_STRING[:id]] || attributes[:id]
    attributes[:short_id]               = fields[SYMBOL_TO_STRING[:short_id]] || attributes[:short_id]
    attributes[:name]                   = fields[SYMBOL_TO_STRING[:name]] || fields[:name] || attributes[:name]
    attributes[:desc]                   = fields[SYMBOL_TO_STRING[:desc]] || fields[:desc] || attributes[:desc]
    attributes[:due]                    = Time.iso8601(fields[SYMBOL_TO_STRING[:due]]) rescue nil if fields.has_key?(SYMBOL_TO_STRING[:due])
    attributes[:due]                    = fields[:due] if fields.has_key?(:due)
    attributes[:due_complete]           = fields[SYMBOL_TO_STRING[:due_complete]] if fields.has_key?(SYMBOL_TO_STRING[:due_complete])
    attributes[:due_complete]           ||= false
    attributes[:closed]                 = fields[SYMBOL_TO_STRING[:closed]] if fields.has_key?(SYMBOL_TO_STRING[:closed])
    attributes[:url]                    = fields[SYMBOL_TO_STRING[:url]] || attributes[:url]
    attributes[:short_url]              = fields[SYMBOL_TO_STRING[:short_url]] || attributes[:short_url]
    attributes[:board_id]               = fields[SYMBOL_TO_STRING[:board_id]] || attributes[:board_id]
    attributes[:member_ids]             = fields[SYMBOL_TO_STRING[:member_ids]] || fields[:member_ids] || attributes[:member_ids]
    attributes[:list_id]                = fields[SYMBOL_TO_STRING[:list_id]] || fields[:list_id] || attributes[:list_id]
    attributes[:pos]                    = fields[SYMBOL_TO_STRING[:pos]] || fields[:pos] || attributes[:pos]
    attributes[:labels]                 = (fields[SYMBOL_TO_STRING[:labels]] || []).map { |lbl| Trello::Label.new(lbl) }.presence || attributes[:labels].presence || []
    attributes[:card_labels]            = fields[SYMBOL_TO_STRING[:card_labels]] || fields[:card_labels] || attributes[:card_labels]
    attributes[:last_activity_date]     = Time.iso8601(fields[SYMBOL_TO_STRING[:last_activity_date]]) rescue nil if fields.has_key?(SYMBOL_TO_STRING[:last_activity_date])
    attributes[:cover_image_id]         = fields[SYMBOL_TO_STRING[:cover_image_id]] || attributes[:cover_image_id]
    attributes[:badges]                 = fields[SYMBOL_TO_STRING[:badges]] || attributes[:badges]
    attributes[:card_members]           = fields[SYMBOL_TO_STRING[:card_members]] || attributes[:card_members]
    attributes[:source_card_id]         = fields[SYMBOL_TO_STRING[:source_card_id]] || fields[:source_card_id] || attributes[:source_card_id]
    attributes[:source_card_properties] = fields[SYMBOL_TO_STRING[:source_card_properties]] || fields[:source_card_properties] || attributes[:source_card_properties]
    self
  end

end

#idString (readonly)

Returns:


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# File 'lib/trello/card.rb', line 45

class Card < BasicData
  register_attributes :id, :short_id, :name, :desc, :due, :due_complete, :closed, :url, :short_url,
    :board_id, :member_ids, :list_id, :pos, :last_activity_date, :labels, :card_labels,
    :cover_image_id, :badges, :card_members, :source_card_id, :source_card_properties,
    readonly: [ :id, :short_id, :url, :short_url, :last_activity_date, :badges, :card_members ]
  validates_presence_of :id, :name, :list_id
  validates_length_of   :name, in: 1..16384
  validates_length_of   :desc, in: 0..16384

  include HasActions

  SYMBOL_TO_STRING = {
    id: 'id',
    short_id: 'idShort',
    name: 'name',
    desc: 'desc',
    due: 'due',
    due_complete: 'dueComplete',
    closed: 'closed',
    url: 'url',
    short_url: 'shortUrl',
    board_id: 'idBoard',
    member_ids: 'idMembers',
    cover_image_id: 'idAttachmentCover',
    list_id: 'idList',
    pos: 'pos',
    last_activity_date: 'dateLastActivity',
    card_labels: 'idLabels',
    labels: 'labels',
    badges: 'badges',
    card_members: 'members',
    source_card_id: "idCardSource",
    source_card_properties: "keepFromSource"
  }

  class << self
    # Find a specific card by its id.
    #
    # @raise [Trello::Error] if the card could not be found.
    #
    # @return [Trello::Card]
    def find(id, params = {})
      client.find(:card, id, params)
    end

    # Create a new card and save it on Trello.
    #
    # If using source_card_id to duplicate a card, make sure to save
    # the source card to Trello before calling this method to assure
    # the correct data is used in the duplication.
    #
    # @param [Hash] options
    # @option options [String] :name The name of the new card.
    # @option options [String] :list_id ID of the list that the card should
    #     be added to.
    # @option options [String] :desc A string with a
    #     length from 0 to 16384.
    # @option options [String] :member_ids A comma-separated list of
    #     objectIds (24-character hex strings).
    # @option options [String] :card_labels A comma-separated list of
    #     objectIds (24-character hex strings).
    # @option options [Date] :due A date, or `nil`.
    # @option options [String] :pos A position. `"top"`, `"bottom"`, or a
    #     positive number. Defaults to `"bottom"`.
    # @option options [String] :source_card_id ID of the card to copy
    # @option options [String] :source_card_properties A single, or array of,
    #     string properties to copy from source card.
    #     `"all"`, `"checklists"`, `"due"`, `"members"`, or `nil`.
    #     Defaults to `"all"`.
    #
    # @raise [Trello::Error] if the card could not be created.
    #
    # @return [Trello::Card]
    def create(options)
      client.create(:card,
        'name' => options[:name],
        'idList' => options[:list_id],
        'desc'   => options[:desc],
        'idMembers' => options[:member_ids],
        'idLabels' => options[:card_labels],
        'due' => options[:due],
        'due_complete' => options[:due_complete] || false,
        'pos' => options[:pos],
        'idCardSource' => options[:source_card_id],
        'keepFromSource' => options.key?(:source_card_properties) ? options[:source_card_properties] : 'all'
      )
    end
  end

  # Update the fields of a card.
  #
  # Supply a hash of string keyed data retrieved from the Trello API representing
  # a card.
  #
  # Note that this this method does not save anything new to the Trello API,
  # it just assigns the input attributes to your local object. If you use
  # this method to assign attributes, call `save` or `update!` afterwards if
  # you want to persist your changes to Trello.
  #
  # @param [Hash] fields
  # @option fields [String] :id
  # @option fields [String] :short_id
  # @option fields [String] :name The new name of the card.
  # @option fields [String] :desc A string with a length from 0 to
  #     16384.
  # @option fields [Date] :due A date, or `nil`.
  # @option fields [Boolean] :due_complete
  # @option fields [Boolean] :closed
  # @option fields [String] :url
  # @option fields [String] :short_url
  # @option fields [String] :board_id
  # @option fields [String] :member_ids A comma-separated list of objectIds
  #     (24-character hex strings).
  # @option fields [String] :pos A position. `"top"`, `"bottom"`, or a
  #     positive number. Defaults to `"bottom"`.
  # @option fields [Array]  :labels An Array of Trello::Label objects
  #     derived from the JSON response
  # @option fields [String] :card_labels A comma-separated list of
  #     objectIds (24-character hex strings).
  # @option fields [Object] :cover_image_id
  # @option fields [Object] :badges
  # @option fields [Object] :card_members
  # @option fields [String] :source_card_id
  # @option fields [Array]  :source_card_properties
  #
  # @return [Trello::Card] self
  def update_fields(fields)
    %i[
      name desc due due_complete closed
      board_id member_ids list_id pos
      card_labels cover_image_id
    ].each do |key|
      send("#{key}_will_change!") if fields_has_key?(fields, key)
    end

    initialize_fields(fields)
  end

  def initialize(fields = {})
    initialize_fields(fields)
  end

  # Returns a reference to the board this card is part of.
  one :board, path: :boards, using: :board_id

  # Returns a reference to the cover image attachment
  def cover_image(params = {})
    response = client.get("/cards/#{id}/attachments/#{cover_image_id}", params)
    CoverImage.from_response(response)
  end

  # Returns a list of checklists associated with the card.
  #
  # The options hash may have a filter key which can have its value set as any
  # of the following values:
  #    :filter => [ :none, :all ] # default :all
  many :checklists, filter: :all

  # Returns a list of plugins associated with the card
  many :plugin_data, path: "pluginData"

  # List of custom field values on the card, only the ones that have been set
  many :custom_field_items, path: 'customFieldItems'

  def check_item_states
    states = CheckItemState.from_response client.get("/cards/#{self.id}/checkItemStates")
    MultiAssociation.new(self, states).proxy
  end

  # Returns a reference to the list this card is currently in.
  one :list, path: :lists, using: :list_id

  # Returns a list of members who are assigned to this card.
  #
  # @return [Array<Trello::Member>]
  def members
    members = Member.from_response client.get("/cards/#{self.id}/members")
    MultiAssociation.new(self, members).proxy
  end

  # Returns a list of members who have upvoted this card
  # NOTE: this fetches a list each time it's called to avoid case where
  # card is voted (or vote is removed) after card is fetched. Optimizing
  # accuracy over network performance
  #
  # @return [Array<Trello::Member>]
  def voters
    Member.from_response client.get("/cards/#{id}/membersVoted")
  end

  # Saves a record.
  #
  # @raise [Trello::Error] if the card could not be saved
  #
  # @return [String] The JSON representation of the saved card returned by
  #     the Trello API.
  def save
    # If we have an id, just update our fields.
    return update! if id

    from_response client.post("/cards", {
      name:   name,
      desc:   desc,
      idList: list_id,
      idMembers: member_ids,
      idLabels: card_labels,
      pos: pos,
      due: due,
      dueComplete: due_complete,
      idCardSource: source_card_id,
      keepFromSource: source_card_properties
    })
  end

  # Update an existing record.
  #
  # Warning: this updates all fields using values already in memory. If
  # an external resource has updated these fields, you should refresh!
  # this object before making your changes, and before updating the record.
  #
  # @raise [Trello::Error] if the card could not be updated.
  #
  # @return [Trello::Card] updated self
  def update!
    @previously_changed = changes
    # extract only new values to build payload
    payload = Hash[changes.map { |key, values| [SYMBOL_TO_STRING[key.to_sym].to_sym, values[1]] }]

    response = client.put("/cards/#{id}", payload)
    updated_card = from_response(response)

    @changed_attributes.clear if @changed_attributes.respond_to?(:clear)
    changes_applied if respond_to?(:changes_applied)

    attributes[:id]                     = updated_card.id
    attributes[:short_id]               = updated_card.short_id
    attributes[:name]                   = updated_card.name
    attributes[:desc]                   = updated_card.desc
    attributes[:due]                    = updated_card.due
    attributes[:due_complete]           = updated_card.due_complete
    attributes[:closed]                 = updated_card.closed
    attributes[:url]                    = updated_card.url
    attributes[:short_url]              = updated_card.short_url
    attributes[:board_id]               = updated_card.board_id
    attributes[:member_ids]             = updated_card.member_ids
    attributes[:list_id]                = updated_card.list_id
    attributes[:pos]                    = updated_card.pos
    attributes[:labels]                 = updated_card.labels
    attributes[:card_labels]            = updated_card.card_labels
    attributes[:last_activity_date]     = updated_card.last_activity_date
    attributes[:cover_image_id]         = updated_card.cover_image_id
    attributes[:badges]                 = updated_card.badges
    attributes[:card_members]           = updated_card.card_members
    attributes[:source_card_id]         = updated_card.source_card_id
    attributes[:source_card_properties] = updated_card.source_card_properties

    self
  end

  # Delete this card
  #
  # @return [String] the JSON response from the Trello API
  def delete
    client.delete("/cards/#{id}")
  end

  # Check if the card is not active anymore.
  def closed?
    closed
  end

  # Close the card.
  #
  # This only marks your local copy card as closed. Use `close!` if you
  # want to close the card and persist the change to the Trello API.
  #
  # @return [Boolean] always returns true
  #
  # @return [String] The JSON representation of the closed card returned by
  #     the Trello API.
  def close
    self.closed = true
  end

  def close!
    close
    save
  end

  # Is the record valid?
  def valid?
    !(name && list_id).nil?
  end

  # Add a comment with the supplied text.
  def add_comment(text)
    client.post("/cards/#{id}/actions/comments", text: text)
  end

  # Add a checklist to this card
  def add_checklist(checklist, name: nil, position: nil)
    payload = { idChecklistSource: checklist.id }
    payload[:name] = name if name 
    payload[:pos] = position if position

    client.post("/cards/#{id}/checklists", payload)
  end

  # create a new checklist and add it to this card
  def create_new_checklist(name)
    client.post("/cards/#{id}/checklists", { name: name })
  end

  # Move this card to the given list
  def move_to_list(list)
    list_number = list.is_a?(String) ? list : list.id
    unless list_id == list_number
      client.put("/cards/#{id}/idList", {
        value: list_number
      })
    end
  end

  # Moves this card to the given list no matter which board it is on
  def move_to_list_on_any_board(list_id)
    list = List.find(list_id)
    if board.id == list.board_id
      move_to_list(list_id)
    else
      move_to_board(Board.find(list.board_id), list)
    end
  end

  # Move this card to the given board (and optional list on this board)
  def move_to_board(new_board, new_list = nil)
    unless board_id == new_board.id
      payload = { value: new_board.id }
      payload[:idList] = new_list.id if new_list
      client.put("/cards/#{id}/idBoard", payload)
    end
  end

  # Add a member to this card
  def add_member(member)
    client.post("/cards/#{id}/idMembers", {
      value: member.id
    })
  end

  # Remove a member from this card
  def remove_member(member)
    client.delete("/cards/#{id}/idMembers/#{member.id}")
  end

  # Current authenticated user upvotes a card
  def upvote
    begin
      client.post("/cards/#{id}/membersVoted", {
        value: me.id
      })
    rescue Trello::Error => e
      fail e unless e.message =~ /has already voted/i
    end

    self
  end

  # Recind upvote. Noop if authenticated user hasn't previously voted
  def remove_upvote
    begin
      client.delete("/cards/#{id}/membersVoted/#{me.id}")
    rescue Trello::Error => e
      fail e unless e.message =~ /has not voted/i
    end

    self
  end

  # Add a label
  def add_label(label)
    unless label.valid?
      errors.add(:label, "is not valid.")
      return Trello.logger.warn "Label is not valid." unless label.valid?
    end
    client.post("/cards/#{id}/idLabels", {value: label.id})
  end

  # Remove a label
  def remove_label(label)
    unless label.valid?
      errors.add(:label, "is not valid.")
      return Trello.logger.warn "Label is not valid." unless label.valid?
    end
    client.delete("/cards/#{id}/idLabels/#{label.id}")
  end

  # Add an attachment to this card
  def add_attachment(attachment, name = '')
    # Is it a file object or a string (url)?
    if attachment.respond_to?(:path) && attachment.respond_to?(:read)
      client.post("/cards/#{id}/attachments", {
          file: attachment,
          name: name
        })
    else
      client.post("/cards/#{id}/attachments", {
          url: attachment,
          name: name
        })
    end
  end

  # Retrieve a list of attachments
  def attachments
    attachments = Attachment.from_response client.get("/cards/#{id}/attachments")
    MultiAssociation.new(self, attachments).proxy
  end

  # Remove an attachment from this card
  def remove_attachment(attachment)
    client.delete("/cards/#{id}/attachments/#{attachment.id}")
  end

  # :nodoc:
  def request_prefix
    "/cards/#{id}"
  end

  # Retrieve a list of comments
  def comments
    comments = Comment.from_response client.get("/cards/#{id}/actions", filter: "commentCard")
  end

  # Find the creation date
  def created_at
    @created_at ||= Time.at(id[0..7].to_i(16)) rescue nil
  end

  private

  def me
    @me ||= Member.find(:me)
  end

  def fields_has_key?(fields, key)
    fields.key?(SYMBOL_TO_STRING[key]) || fields.key?(key)
  end

  def initialize_fields(fields)
    attributes[:id]                     = fields[SYMBOL_TO_STRING[:id]] || attributes[:id]
    attributes[:short_id]               = fields[SYMBOL_TO_STRING[:short_id]] || attributes[:short_id]
    attributes[:name]                   = fields[SYMBOL_TO_STRING[:name]] || fields[:name] || attributes[:name]
    attributes[:desc]                   = fields[SYMBOL_TO_STRING[:desc]] || fields[:desc] || attributes[:desc]
    attributes[:due]                    = Time.iso8601(fields[SYMBOL_TO_STRING[:due]]) rescue nil if fields.has_key?(SYMBOL_TO_STRING[:due])
    attributes[:due]                    = fields[:due] if fields.has_key?(:due)
    attributes[:due_complete]           = fields[SYMBOL_TO_STRING[:due_complete]] if fields.has_key?(SYMBOL_TO_STRING[:due_complete])
    attributes[:due_complete]           ||= false
    attributes[:closed]                 = fields[SYMBOL_TO_STRING[:closed]] if fields.has_key?(SYMBOL_TO_STRING[:closed])
    attributes[:url]                    = fields[SYMBOL_TO_STRING[:url]] || attributes[:url]
    attributes[:short_url]              = fields[SYMBOL_TO_STRING[:short_url]] || attributes[:short_url]
    attributes[:board_id]               = fields[SYMBOL_TO_STRING[:board_id]] || attributes[:board_id]
    attributes[:member_ids]             = fields[SYMBOL_TO_STRING[:member_ids]] || fields[:member_ids] || attributes[:member_ids]
    attributes[:list_id]                = fields[SYMBOL_TO_STRING[:list_id]] || fields[:list_id] || attributes[:list_id]
    attributes[:pos]                    = fields[SYMBOL_TO_STRING[:pos]] || fields[:pos] || attributes[:pos]
    attributes[:labels]                 = (fields[SYMBOL_TO_STRING[:labels]] || []).map { |lbl| Trello::Label.new(lbl) }.presence || attributes[:labels].presence || []
    attributes[:card_labels]            = fields[SYMBOL_TO_STRING[:card_labels]] || fields[:card_labels] || attributes[:card_labels]
    attributes[:last_activity_date]     = Time.iso8601(fields[SYMBOL_TO_STRING[:last_activity_date]]) rescue nil if fields.has_key?(SYMBOL_TO_STRING[:last_activity_date])
    attributes[:cover_image_id]         = fields[SYMBOL_TO_STRING[:cover_image_id]] || attributes[:cover_image_id]
    attributes[:badges]                 = fields[SYMBOL_TO_STRING[:badges]] || attributes[:badges]
    attributes[:card_members]           = fields[SYMBOL_TO_STRING[:card_members]] || attributes[:card_members]
    attributes[:source_card_id]         = fields[SYMBOL_TO_STRING[:source_card_id]] || fields[:source_card_id] || attributes[:source_card_id]
    attributes[:source_card_properties] = fields[SYMBOL_TO_STRING[:source_card_properties]] || fields[:source_card_properties] || attributes[:source_card_properties]
    self
  end

end

#labelsArray<Trello::Labels>

Returns:

  • (Array<Trello::Labels>)

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# File 'lib/trello/card.rb', line 45

class Card < BasicData
  register_attributes :id, :short_id, :name, :desc, :due, :due_complete, :closed, :url, :short_url,
    :board_id, :member_ids, :list_id, :pos, :last_activity_date, :labels, :card_labels,
    :cover_image_id, :badges, :card_members, :source_card_id, :source_card_properties,
    readonly: [ :id, :short_id, :url, :short_url, :last_activity_date, :badges, :card_members ]
  validates_presence_of :id, :name, :list_id
  validates_length_of   :name, in: 1..16384
  validates_length_of   :desc, in: 0..16384

  include HasActions

  SYMBOL_TO_STRING = {
    id: 'id',
    short_id: 'idShort',
    name: 'name',
    desc: 'desc',
    due: 'due',
    due_complete: 'dueComplete',
    closed: 'closed',
    url: 'url',
    short_url: 'shortUrl',
    board_id: 'idBoard',
    member_ids: 'idMembers',
    cover_image_id: 'idAttachmentCover',
    list_id: 'idList',
    pos: 'pos',
    last_activity_date: 'dateLastActivity',
    card_labels: 'idLabels',
    labels: 'labels',
    badges: 'badges',
    card_members: 'members',
    source_card_id: "idCardSource",
    source_card_properties: "keepFromSource"
  }

  class << self
    # Find a specific card by its id.
    #
    # @raise [Trello::Error] if the card could not be found.
    #
    # @return [Trello::Card]
    def find(id, params = {})
      client.find(:card, id, params)
    end

    # Create a new card and save it on Trello.
    #
    # If using source_card_id to duplicate a card, make sure to save
    # the source card to Trello before calling this method to assure
    # the correct data is used in the duplication.
    #
    # @param [Hash] options
    # @option options [String] :name The name of the new card.
    # @option options [String] :list_id ID of the list that the card should
    #     be added to.
    # @option options [String] :desc A string with a
    #     length from 0 to 16384.
    # @option options [String] :member_ids A comma-separated list of
    #     objectIds (24-character hex strings).
    # @option options [String] :card_labels A comma-separated list of
    #     objectIds (24-character hex strings).
    # @option options [Date] :due A date, or `nil`.
    # @option options [String] :pos A position. `"top"`, `"bottom"`, or a
    #     positive number. Defaults to `"bottom"`.
    # @option options [String] :source_card_id ID of the card to copy
    # @option options [String] :source_card_properties A single, or array of,
    #     string properties to copy from source card.
    #     `"all"`, `"checklists"`, `"due"`, `"members"`, or `nil`.
    #     Defaults to `"all"`.
    #
    # @raise [Trello::Error] if the card could not be created.
    #
    # @return [Trello::Card]
    def create(options)
      client.create(:card,
        'name' => options[:name],
        'idList' => options[:list_id],
        'desc'   => options[:desc],
        'idMembers' => options[:member_ids],
        'idLabels' => options[:card_labels],
        'due' => options[:due],
        'due_complete' => options[:due_complete] || false,
        'pos' => options[:pos],
        'idCardSource' => options[:source_card_id],
        'keepFromSource' => options.key?(:source_card_properties) ? options[:source_card_properties] : 'all'
      )
    end
  end

  # Update the fields of a card.
  #
  # Supply a hash of string keyed data retrieved from the Trello API representing
  # a card.
  #
  # Note that this this method does not save anything new to the Trello API,
  # it just assigns the input attributes to your local object. If you use
  # this method to assign attributes, call `save` or `update!` afterwards if
  # you want to persist your changes to Trello.
  #
  # @param [Hash] fields
  # @option fields [String] :id
  # @option fields [String] :short_id
  # @option fields [String] :name The new name of the card.
  # @option fields [String] :desc A string with a length from 0 to
  #     16384.
  # @option fields [Date] :due A date, or `nil`.
  # @option fields [Boolean] :due_complete
  # @option fields [Boolean] :closed
  # @option fields [String] :url
  # @option fields [String] :short_url
  # @option fields [String] :board_id
  # @option fields [String] :member_ids A comma-separated list of objectIds
  #     (24-character hex strings).
  # @option fields [String] :pos A position. `"top"`, `"bottom"`, or a
  #     positive number. Defaults to `"bottom"`.
  # @option fields [Array]  :labels An Array of Trello::Label objects
  #     derived from the JSON response
  # @option fields [String] :card_labels A comma-separated list of
  #     objectIds (24-character hex strings).
  # @option fields [Object] :cover_image_id
  # @option fields [Object] :badges
  # @option fields [Object] :card_members
  # @option fields [String] :source_card_id
  # @option fields [Array]  :source_card_properties
  #
  # @return [Trello::Card] self
  def update_fields(fields)
    %i[
      name desc due due_complete closed
      board_id member_ids list_id pos
      card_labels cover_image_id
    ].each do |key|
      send("#{key}_will_change!") if fields_has_key?(fields, key)
    end

    initialize_fields(fields)
  end

  def initialize(fields = {})
    initialize_fields(fields)
  end

  # Returns a reference to the board this card is part of.
  one :board, path: :boards, using: :board_id

  # Returns a reference to the cover image attachment
  def cover_image(params = {})
    response = client.get("/cards/#{id}/attachments/#{cover_image_id}", params)
    CoverImage.from_response(response)
  end

  # Returns a list of checklists associated with the card.
  #
  # The options hash may have a filter key which can have its value set as any
  # of the following values:
  #    :filter => [ :none, :all ] # default :all
  many :checklists, filter: :all

  # Returns a list of plugins associated with the card
  many :plugin_data, path: "pluginData"

  # List of custom field values on the card, only the ones that have been set
  many :custom_field_items, path: 'customFieldItems'

  def check_item_states
    states = CheckItemState.from_response client.get("/cards/#{self.id}/checkItemStates")
    MultiAssociation.new(self, states).proxy
  end

  # Returns a reference to the list this card is currently in.
  one :list, path: :lists, using: :list_id

  # Returns a list of members who are assigned to this card.
  #
  # @return [Array<Trello::Member>]
  def members
    members = Member.from_response client.get("/cards/#{self.id}/members")
    MultiAssociation.new(self, members).proxy
  end

  # Returns a list of members who have upvoted this card
  # NOTE: this fetches a list each time it's called to avoid case where
  # card is voted (or vote is removed) after card is fetched. Optimizing
  # accuracy over network performance
  #
  # @return [Array<Trello::Member>]
  def voters
    Member.from_response client.get("/cards/#{id}/membersVoted")
  end

  # Saves a record.
  #
  # @raise [Trello::Error] if the card could not be saved
  #
  # @return [String] The JSON representation of the saved card returned by
  #     the Trello API.
  def save
    # If we have an id, just update our fields.
    return update! if id

    from_response client.post("/cards", {
      name:   name,
      desc:   desc,
      idList: list_id,
      idMembers: member_ids,
      idLabels: card_labels,
      pos: pos,
      due: due,
      dueComplete: due_complete,
      idCardSource: source_card_id,
      keepFromSource: source_card_properties
    })
  end

  # Update an existing record.
  #
  # Warning: this updates all fields using values already in memory. If
  # an external resource has updated these fields, you should refresh!
  # this object before making your changes, and before updating the record.
  #
  # @raise [Trello::Error] if the card could not be updated.
  #
  # @return [Trello::Card] updated self
  def update!
    @previously_changed = changes
    # extract only new values to build payload
    payload = Hash[changes.map { |key, values| [SYMBOL_TO_STRING[key.to_sym].to_sym, values[1]] }]

    response = client.put("/cards/#{id}", payload)
    updated_card = from_response(response)

    @changed_attributes.clear if @changed_attributes.respond_to?(:clear)
    changes_applied if respond_to?(:changes_applied)

    attributes[:id]                     = updated_card.id
    attributes[:short_id]               = updated_card.short_id
    attributes[:name]                   = updated_card.name
    attributes[:desc]                   = updated_card.desc
    attributes[:due]                    = updated_card.due
    attributes[:due_complete]           = updated_card.due_complete
    attributes[:closed]                 = updated_card.closed
    attributes[:url]                    = updated_card.url
    attributes[:short_url]              = updated_card.short_url
    attributes[:board_id]               = updated_card.board_id
    attributes[:member_ids]             = updated_card.member_ids
    attributes[:list_id]                = updated_card.list_id
    attributes[:pos]                    = updated_card.pos
    attributes[:labels]                 = updated_card.labels
    attributes[:card_labels]            = updated_card.card_labels
    attributes[:last_activity_date]     = updated_card.last_activity_date
    attributes[:cover_image_id]         = updated_card.cover_image_id
    attributes[:badges]                 = updated_card.badges
    attributes[:card_members]           = updated_card.card_members
    attributes[:source_card_id]         = updated_card.source_card_id
    attributes[:source_card_properties] = updated_card.source_card_properties

    self
  end

  # Delete this card
  #
  # @return [String] the JSON response from the Trello API
  def delete
    client.delete("/cards/#{id}")
  end

  # Check if the card is not active anymore.
  def closed?
    closed
  end

  # Close the card.
  #
  # This only marks your local copy card as closed. Use `close!` if you
  # want to close the card and persist the change to the Trello API.
  #
  # @return [Boolean] always returns true
  #
  # @return [String] The JSON representation of the closed card returned by
  #     the Trello API.
  def close
    self.closed = true
  end

  def close!
    close
    save
  end

  # Is the record valid?
  def valid?
    !(name && list_id).nil?
  end

  # Add a comment with the supplied text.
  def add_comment(text)
    client.post("/cards/#{id}/actions/comments", text: text)
  end

  # Add a checklist to this card
  def add_checklist(checklist, name: nil, position: nil)
    payload = { idChecklistSource: checklist.id }
    payload[:name] = name if name 
    payload[:pos] = position if position

    client.post("/cards/#{id}/checklists", payload)
  end

  # create a new checklist and add it to this card
  def create_new_checklist(name)
    client.post("/cards/#{id}/checklists", { name: name })
  end

  # Move this card to the given list
  def move_to_list(list)
    list_number = list.is_a?(String) ? list : list.id
    unless list_id == list_number
      client.put("/cards/#{id}/idList", {
        value: list_number
      })
    end
  end

  # Moves this card to the given list no matter which board it is on
  def move_to_list_on_any_board(list_id)
    list = List.find(list_id)
    if board.id == list.board_id
      move_to_list(list_id)
    else
      move_to_board(Board.find(list.board_id), list)
    end
  end

  # Move this card to the given board (and optional list on this board)
  def move_to_board(new_board, new_list = nil)
    unless board_id == new_board.id
      payload = { value: new_board.id }
      payload[:idList] = new_list.id if new_list
      client.put("/cards/#{id}/idBoard", payload)
    end
  end

  # Add a member to this card
  def add_member(member)
    client.post("/cards/#{id}/idMembers", {
      value: member.id
    })
  end

  # Remove a member from this card
  def remove_member(member)
    client.delete("/cards/#{id}/idMembers/#{member.id}")
  end

  # Current authenticated user upvotes a card
  def upvote
    begin
      client.post("/cards/#{id}/membersVoted", {
        value: me.id
      })
    rescue Trello::Error => e
      fail e unless e.message =~ /has already voted/i
    end

    self
  end

  # Recind upvote. Noop if authenticated user hasn't previously voted
  def remove_upvote
    begin
      client.delete("/cards/#{id}/membersVoted/#{me.id}")
    rescue Trello::Error => e
      fail e unless e.message =~ /has not voted/i
    end

    self
  end

  # Add a label
  def add_label(label)
    unless label.valid?
      errors.add(:label, "is not valid.")
      return Trello.logger.warn "Label is not valid." unless label.valid?
    end
    client.post("/cards/#{id}/idLabels", {value: label.id})
  end

  # Remove a label
  def remove_label(label)
    unless label.valid?
      errors.add(:label, "is not valid.")
      return Trello.logger.warn "Label is not valid." unless label.valid?
    end
    client.delete("/cards/#{id}/idLabels/#{label.id}")
  end

  # Add an attachment to this card
  def add_attachment(attachment, name = '')
    # Is it a file object or a string (url)?
    if attachment.respond_to?(:path) && attachment.respond_to?(:read)
      client.post("/cards/#{id}/attachments", {
          file: attachment,
          name: name
        })
    else
      client.post("/cards/#{id}/attachments", {
          url: attachment,
          name: name
        })
    end
  end

  # Retrieve a list of attachments
  def attachments
    attachments = Attachment.from_response client.get("/cards/#{id}/attachments")
    MultiAssociation.new(self, attachments).proxy
  end

  # Remove an attachment from this card
  def remove_attachment(attachment)
    client.delete("/cards/#{id}/attachments/#{attachment.id}")
  end

  # :nodoc:
  def request_prefix
    "/cards/#{id}"
  end

  # Retrieve a list of comments
  def<