Class: Decidim::Posts::AddReactionToResource

Inherits:
Command
  • Object
show all
Defined in:
app/commands/decidim/posts/add_reaction_to_resource.rb

Overview

A command with all the business logic related with a user reacting to a resource.

Instance Method Summary collapse

Constructor Details

#initialize(resource, current_user, current_group_id = nil, reaction_type_id) ⇒ AddReactionToResource

Public: Initializes the command.

resource - An instance of Decidim::Posts::Reactionable. current_user - The current user. current_group_id- (optional) The current_grup that is reacting to the Resource. reaction_type_id - The id of the reaction type (emoji) that the user is reacting with.



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# File 'app/commands/decidim/posts/add_reaction_to_resource.rb', line 13

def initialize(resource, current_user, current_group_id = nil, reaction_type_id)
  @resource = resource
  @current_user = current_user
  @current_group_id = current_group_id
  @reaction_type = ReactionType.find(reaction_type_id)
end

Instance Method Details

#call ⇒ Object

Executes the command. Broadcasts these events:

  • :ok when everything is valid, together with the resource reaction.

  • :invalid if the form was not valid and we could not proceed.

Returns nothing.



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# File 'app/commands/decidim/posts/add_reaction_to_resource.rb', line 26

def call
  return broadcast(:invalid) if existing_group_reaction?

  reaction = @resource.reactions.find_by(author: @current_user)
  if reaction.present?
    if reaction.reaction_type == @reaction_type
      if delete_reaction(reaction)
        broadcast(:ok, nil)
      else
        broadcast(:invalid)
      end
    else
      if reaction.update(reaction_type: @reaction_type)
        broadcast(:ok, reaction)
      else
        broadcast(:invalid)
      end
    end
  else
    reaction = build_resource_reaction unless reaction
    if reaction.save
      notify_reactor_followers
      broadcast(:ok, reaction)
    else
      broadcast(:invalid)
    end
  end
rescue ActiveRecord::RecordNotUnique
  broadcast(:invalid)
end