DRY supported_languages

app/controllers/admin/dashboard_controller.rb

@@ -22,8 +22,7 @@ class Admin::DashboardController < Admin::BaseController
                                  .where("invitation_sent_at > ?", 14.days.ago)
                                  .count
 
-    @supported_languages = SupportedLanguage.where(active: true).order(:sort_order)
-    @language_completion = @supported_languages.index_with do |language|
+    @language_completion = supported_languages.index_with do |language|
       next 0 if @entry_count.zero?
 
       (Entry.where.not(language.code => [ nil, "" ]).count * 100.0 / @entry_count).round

app/controllers/application_controller.rb

@@ -1,12 +1,16 @@
 class ApplicationController < ActionController::Base
-
   # Changes to the importmap will invalidate the etag for HTML responses
   stale_when_importmap_changes
 
-  helper_method :current_user, :logged_in?, :admin?, :reviewer_or_admin?, :contributor_or_above?, :setup_completed?
+  helper_method :supported_languages, :current_user, :logged_in?, :admin?, :reviewer_or_admin?,
+                :contributor_or_above?, :setup_completed?
 
   private
 
+  def supported_languages
+    @supported_languages ||= SupportedLanguage.where(active: true).order(:sort_order, :name)
+  end
+
   def current_user
     @current_user ||= User.find_by(id: session[:user_id]) if session[:user_id]
   end

app/controllers/entries_controller.rb

@@ -2,7 +2,6 @@ class EntriesController < ApplicationController
   before_action :set_entry, only: [ :show ]
 
   def index
-    @supported_languages = SupportedLanguage.where(active: true).order(:sort_order, :name)
     @language_code = params[:language].presence
     @category = params[:category].presence
     @query = params[:q].to_s.strip
@@ -24,21 +23,21 @@ class EntriesController < ApplicationController
     @entry_count = Entry.count
     @verified_count = Entry.where(verified: true).count
     @needs_review_count = @entry_count - @verified_count
-    @complete_entries_count = @supported_languages.reduce(Entry.all) do |scope, language|
+    @complete_entries_count = supported_languages.reduce(Entry.all) do |scope, language|
       scope.where.not(language.code => [ nil, "" ])
     end.count
     @missing_entries_count = @entry_count - @complete_entries_count
-    @language_completion = @supported_languages.index_with do |language|
+    @language_completion = supported_languages.index_with do |language|
       next 0 if @entry_count.zero?
 
       (Entry.where.not(language.code => [ nil, "" ]).count * 100.0 / @entry_count).round
     end
 
     if @language_code.present?
-      primary_language, other_languages = @supported_languages.partition { |language| language.code == @language_code }
+      primary_language, other_languages = supported_languages.partition { |language| language.code == @language_code }
       @display_languages = primary_language + other_languages
     else
-      @display_languages = @supported_languages
+      @display_languages = supported_languages
     end
 
     respond_to do |format|
@@ -48,7 +47,6 @@ class EntriesController < ApplicationController
   end
 
   def show
-    @supported_languages = SupportedLanguage.where(active: true).order(:sort_order, :name)
   end
 
   def download