Rubocop autocorrections

Gemfile

@@ -24,6 +24,7 @@ gem 'graphql', '~> 1.6.3'
 gem 'groupdate', '~> 3.2.0'
 gem 'initialjs-rails', '~> 0.2.0.5'
 gem 'invisible_captcha', '~> 0.9.2'
+gem 'jquery-fileupload-rails'
 gem 'jquery-rails', '~> 4.3.1'
 gem 'jquery-ui-rails', '~> 6.0.1'
 gem 'kaminari', '~> 1.0.1'
@@ -33,7 +34,6 @@ gem 'omniauth-facebook', '~> 4.0.0'
 gem 'omniauth-google-oauth2', '~> 0.4.0'
 gem 'omniauth-twitter', '~> 1.4.0'
 gem 'paperclip', '~> 5.1.0'
-gem 'jquery-fileupload-rails'
 gem 'paranoia', '~> 2.3.1'
 gem 'pg', '~> 0.21.0'
 gem 'pg_search', '~> 2.0.1'

app/controllers/communities_controller.rb

@@ -7,7 +7,7 @@ class CommunitiesController < ApplicationController
   skip_authorization_check
 
   def show
-    redirect_to root_path unless Setting['feature.community'].present?
+    redirect_to root_path if Setting['feature.community'].blank?
   end
 
   private

app/controllers/documents_controller.rb

@@ -1,8 +1,8 @@
 class DocumentsController < ApplicationController
   before_action :authenticate_user!
-  before_filter :find_documentable, except: :destroy
-  before_filter :prepare_new_document, only: [:new, :new_nested]
-  before_filter :prepare_document_for_creation, only: :create
+  before_action :find_documentable, except: :destroy
+  before_action :prepare_new_document, only: [:new, :new_nested]
+  before_action :prepare_document_for_creation, only: :create
 
   load_and_authorize_resource except: :upload
   skip_authorization_check only: :upload

app/helpers/documentables_helper.rb

@@ -18,7 +18,7 @@ module DocumentablesHelper
 
   def accepted_content_types_extensions(documentable_class)
     documentable_class.accepted_content_types
-                .collect{ |content_type| ".#{content_type.split("/").last}" }
+                      .collect{ |content_type| ".#{content_type.split('/').last}" }
                       .join(",")
   end
 

app/models/community.rb

@@ -11,7 +11,7 @@ class Community < ActiveRecord::Base
   end
 
   def from_proposal?
-    self.proposal.present?
+    proposal.present?
   end
 
   private

app/models/document.rb

@@ -40,7 +40,7 @@ class Document < ActiveRecord::Base
     attachment.instance.prefix(attachment, style)
   end
 
-  def prefix(attachment, style)
+  def prefix(attachment, _style)
     if !attachment.instance.persisted?
       "cached_attachments/user/#{attachment.instance.user_id}"
     else
@@ -75,7 +75,7 @@ class Document < ActiveRecord::Base
     end
 
     def remove_cached_document
-      File.delete(cached_attachment) if File.exists?(cached_attachment)
+      File.delete(cached_attachment) if File.exist?(cached_attachment)
     end
 
 end

spec/models/topic_spec.rb

@@ -71,5 +71,4 @@ describe Topic do
 
   end
 
-
 end

spec/shared/features/nested_documentable.rb

@@ -11,12 +11,10 @@ shared_examples "nested documentable" do |documentable_factory_name, path, docum
   before do
     create(:administrator, user: administrator)
 
-    if documentable_path_arguments
-      documentable_path_arguments.each do |argument_name, path_to_value|
+    documentable_path_arguments&.each do |argument_name, path_to_value|
         arguments.merge!("#{argument_name}": documentable.send(path_to_value))
     end
   end
-  end
 
   describe "at #{path}" do