Solves #3153. It refactors images attributes.

app/controllers/admin/milestones_controller.rb

@@ -1,5 +1,6 @@
 class Admin::MilestonesController < Admin::BaseController
   include Translatable
+  include ImagesHelper
 
   before_action :load_milestoneable, only: [:index, :new, :create, :edit, :update, :destroy]
   before_action :load_milestone, only: [:edit, :update, :destroy]
@@ -41,7 +42,6 @@ class Admin::MilestonesController < Admin::BaseController
   private
 
   def milestone_params
-    image_attributes = [:id, :title, :attachment, :cached_attachment, :user_id, :_destroy]
     documents_attributes = [:id, :title, :attachment, :cached_attachment, :user_id, :_destroy]
     attributes = [:publication_date, :status_id,
                   translation_params(Milestone),

app/controllers/admin/poll/polls_controller.rb

@@ -1,5 +1,6 @@
 class Admin::Poll::PollsController < Admin::Poll::BaseController
   include Translatable
+  include ImagesHelper
   load_and_authorize_resource
 
   before_action :load_search, only: [:search_booths, :search_officers]
@@ -60,7 +61,6 @@ class Admin::Poll::PollsController < Admin::Poll::BaseController
     end
 
     def poll_params
-      image_attributes = [:id, :title, :attachment, :cached_attachment, :user_id, :_destroy]
       attributes = [:name, :starts_at, :ends_at, :geozone_restricted, :results_enabled,
                     :stats_enabled, geozone_ids: [],
                     image_attributes: image_attributes]

app/controllers/admin/widget/cards_controller.rb

@@ -1,5 +1,6 @@
 class Admin::Widget::CardsController < Admin::BaseController
   include Translatable
+  include ImagesHelper
 
   def new
     @card = ::Widget::Card.new(header: header_card?)
@@ -40,8 +41,6 @@ class Admin::Widget::CardsController < Admin::BaseController
   private
 
   def card_params
-    image_attributes = [:id, :title, :attachment, :cached_attachment, :user_id, :_destroy]
-
     params.require(:widget_card).permit(
       :link_url, :button_text, :button_url, :alignment, :header,
       translation_params(Widget::Card),

app/controllers/budgets/investments_controller.rb

@@ -4,6 +4,7 @@ module Budgets
     include FeatureFlags
     include CommentableActions
     include FlagActions
+    include ImagesHelper
 
     before_action :authenticate_user!, except: [:index, :show, :json_data]
 
@@ -136,7 +137,7 @@ module Budgets
         params.require(:budget_investment)
               .permit(:title, :description, :heading_id, :tag_list,
                       :organization_name, :location, :terms_of_service, :skip_map,
-                      image_attributes: [:id, :title, :attachment, :cached_attachment, :user_id, :_destroy],
+                      image_attributes: image_attributes,
                       documents_attributes: [:id, :title, :attachment, :cached_attachment, :user_id, :_destroy],
                       map_location_attributes: [:latitude, :longitude, :zoom])
       end

app/controllers/legislation/proposals_controller.rb

@@ -1,6 +1,7 @@
 class Legislation::ProposalsController < Legislation::BaseController
   include CommentableActions
   include FlagActions
+  include ImagesHelper
 
   before_action :parse_tag_filter, only: :index
   before_action :load_categories, only: [:index, :new, :create, :edit, :map, :summary]
@@ -54,7 +55,7 @@ class Legislation::ProposalsController < Legislation::BaseController
       params.require(:legislation_proposal).permit(:legislation_process_id, :title,
                     :question, :summary, :description, :video_url, :tag_list,
                     :terms_of_service, :geozone_id,
-                    image_attributes: [:id, :title, :attachment, :cached_attachment, :user_id, :_destroy],
+                    image_attributes: image_attributes,
                     documents_attributes: [:id, :title, :attachment, :cached_attachment, :user_id])
     end
 

app/controllers/proposals_controller.rb

@@ -2,6 +2,7 @@ class ProposalsController < ApplicationController
   include FeatureFlags
   include CommentableActions
   include FlagActions
+  include ImagesHelper
 
   before_action :parse_tag_filter, only: :index
   before_action :load_categories, only: [:index, :new, :create, :edit, :map, :summary]
@@ -92,7 +93,7 @@ class ProposalsController < ApplicationController
     def proposal_params
       params.require(:proposal).permit(:title, :question, :summary, :description, :external_url, :video_url,
                                        :responsible_name, :tag_list, :terms_of_service, :geozone_id, :skip_map,
-                                       image_attributes: [:id, :title, :attachment, :cached_attachment, :user_id, :_destroy],
+                                       image_attributes: image_attributes,
                                        documents_attributes: [:id, :title, :attachment, :cached_attachment, :user_id, :_destroy],
                                        map_location_attributes: [:latitude, :longitude, :zoom])
     end

app/helpers/images_helper.rb

@@ -76,4 +76,8 @@ module ImagesHelper
                        "direct_upload[resource_relation]": "image")
   end
 
+  def image_attributes
+    [:id, :title, :attachment, :cached_attachment, :user_id, :_destroy]
+  end
+
 end