Read-only patch written, frontend shows dictionary in different languages

app/controllers/active_language_controller.rb

@@ -3,6 +3,7 @@ class ActiveLanguageController < ApplicationController
   def set_active_language
     if Language.find_by_id(params[:active_language_id]) != nil
       cookies[:active_language_id] = params[:active_language_id]
+      redirect_back fallback_location: root_path
     else
       redirect_to root_path, status: :unprocessable_entity
     end

app/controllers/dictionary_controller.rb

@@ -1,11 +1,19 @@
 class DictionaryController < ApplicationController
   def index
-    @parts_of_speech = PartOfSpeech.all
+    @parts_of_speech = PartOfSpeech.where(language_id: active_language)
     @words = Word.all
   end
 
   def show
     @letter = params[:id]
     @words = Word.where('substr(word, 1, 1) = ?', @letter)
+    @language = active_language
+
+    #@words.joins(:definitions).where(definitions: { language_id: active_language })
+  end
+
+  private
+  def active_language 
+    cookies[:active_language_id] || Language.where(name: "English")
   end
 end