Module: Effective::Resources::Instance

Included in:
Effective::Resource
Defined in:
app/models/effective/resources/instance.rb

Constant Summary collapse

BLACKLIST =

This is written for use by effective_logging and effective_trash

[:logged_changes, :trash]

Instance Attribute Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#instance ⇒ Object

Returns the value of attribute instance.



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# File 'app/models/effective/resources/instance.rb', line 6

def instance
  @instance
end

Instance Method Details

#instance_action_texts_previous_changes ⇒ Object 



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# File 'app/models/effective/resources/instance.rb', line 81

def instance_action_texts_previous_changes
  return {} unless instance.present? && action_texts.present?

  action_texts
    .map { |ass| instance.send(ass.name) }
    .compact
    .flatten
    .select { |obj| obj.previous_changes['body'].present? }
    .inject({}) { |h, obj| h[obj.name.to_sym] = obj.previous_changes['body']; h }
end

#instance_attributes(only: nil, except: nil, associations: true) ⇒ Object

called by effective_trash and effective_logging



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# File 'app/models/effective/resources/instance.rb', line 16

def instance_attributes(only: nil, except: nil, associations: true)
  return {} unless instance.present?

  # Build up our only and except
  only = Array(only).map(&:to_sym)
  except = Array(except).map(&:to_sym) + BLACKLIST

  # Simple Attributes
  attributes = { attributes: instance.attributes.symbolize_keys }

  attributes[:attributes] = attributes[:attributes].except(*except) if except.present?
  attributes[:attributes] = attributes[:attributes].slice(*only) if only.present?

  # Collect to_s representations of all belongs_to associations
  belong_tos.each do |association|
    next if except.present? && except.include?(association.name)
    next unless only.blank? || only.include?(association.name)

    attributes[association.name] = instance.send(association.name).to_s
  end

  if associations 
    # Grab the instance attributes of each nested resource
    nested_resources.each do |association|
      next if except.present? && except.include?(association.name)
      next unless only.blank? || only.include?(association.name)

      next if association.options[:through]

      attributes[association.name] ||= {}

      Array(instance.send(association.name)).each_with_index do |child, index|
        next unless child.present?

        resource = Effective::Resource.new(child)
        attributes[association.name][index] = resource.instance_attributes(only: only, except: except)
      end
    end

    (action_texts + has_ones).each do |association|
      next if except.present? && except.include?(association.name)
      next unless only.blank? || only.include?(association.name)

      attributes[association.name] = instance.send(association.name).to_s
    end

    has_manys.each do |association|
      next if except.present? && except.include?(association.name)
      next unless only.blank? || only.include?(association.name)

      next if BLACKLIST.include?(association.name)
      attributes[association.name] = instance.send(association.name).map { |obj| obj.to_s }
    end

    has_and_belongs_to_manys.each do |association|
      next if except.present? && except.include?(association.name)
      next unless only.blank? || only.include?(association.name)

      attributes[association.name] = instance.send(association.name).map { |obj| obj.to_s }
    end
  end

  attributes.delete_if { |_, value| value.blank? }
end

#instance_changes(only: nil, except: nil) ⇒ Object

used by effective_logging



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# File 'app/models/effective/resources/instance.rb', line 93

def instance_changes(only: nil, except: nil)
  return {} unless instance.present?

  action_texts_changes = instance_action_texts_previous_changes()
  return {} unless instance.previous_changes.present? || action_texts_changes.present?

  # Build up our only and except
  only = Array(only).map(&:to_sym)
  except = Array(except).map(&:to_sym) + BLACKLIST

  changes = instance.previous_changes.symbolize_keys.delete_if do |attribute, (before, after)|
    begin
      (before.kind_of?(ActiveSupport::TimeWithZone) && after.kind_of?(ActiveSupport::TimeWithZone) && before.to_i == after.to_i) ||
      (before == nil && after == false) || (before == nil && after == ''.freeze)
    rescue => e
      true
    end
  end

  changes = changes.except(*except) if except.present?
  changes = changes.slice(*only) if only.present?

  action_texts_changes.each do |name, (before, after)|
    next if except.present? && except.include?(name)
    next unless only.blank? || only.include?(name)

    changes[name] = [before.to_s, after.to_s]
  end

  # Log to_s changes on all belongs_to associations
  belong_tos.each do |association|
    next if except.present? && except.include?(association.name)
    next unless only.blank? || only.include?(association.name)

    if (change = changes.delete(association.foreign_key)).present?
      changes[association.name] = [(association.klass.find_by_id(change.first) if changes.first), instance.send(association.name)]
    end
  end

  changes
end