add choose_lang for qa_file

app/controllers/faqs_controller.rb

@@ -1,6 +1,7 @@
 class FaqsController < ApplicationController
   def index
     faqs = Qa.can_display.order_by(:order_position => "asc").filter_by_categories
+    locale = I18n.locale.to_s
     f = faqs.collect do |qa|
        statuses = qa.statuses_with_classname.collect do |status|
         {
@@ -9,11 +10,12 @@ class FaqsController < ApplicationController
         }
       end
       qa_files = qa.qa_files.map do |qa_file|
+        next if !qa_file.enabled_for?(locale)
         {
           "file_url" => qa_file.file.url + "\" title=\"#{qa_file.file_title}",
           "file_title" => (qa_file.title.blank? ? File.basename(qa_file["file"]) : qa_file.title)
         }
-      end
+      end.compact
       {
         "link_to_show" => OrbitHelper.url_to_show(qa.to_param),
         "question" => qa.title,
@@ -36,8 +38,10 @@ class FaqsController < ApplicationController
     url_to_edit = OrbitHelper.user_can_edit?(faq) ? "/admin/faqs/#{faq.id.to_s}/edit" : ""
     
     return {} if (faq.category.disable rescue false)
+    locale = I18n.locale.to_s
     
     faqs_files = faq.qa_files.collect do |f|
+      next if !qa_file.enabled_for?(locale)
       {
         "file_url" => f.file.url + "\" title=\"#{f.file_title}",
         "file_title" => f.title

app/models/qa_file.rb

@@ -8,7 +8,7 @@ class QaFile
   field :description, localize: true
   field :should_destroy, :type => Boolean  
   field :title, localize: true
-  
+  field :choose_lang, :type => Array, :default => ["en","zh_tw"]
   belongs_to :qa
   def file_title
     if self.description.present?
@@ -19,4 +19,11 @@ class QaFile
       return File.basename(self.file.path)
     end
   end
+  def enabled_for?(lang)
+    if lang.nil?
+      return true
+    else
+      return self.choose_lang.include?(lang)
+    end
+  end
 end

app/views/admin/faqs/_form_qa_file.html.erb

@@ -40,6 +40,20 @@
       <% end %>
     </span>
     </span>
+    <span class="add-on btn-group btn" title="<%= t('archive.show_lang') %>">
+      <i class="icons-earth"></i> <span class="caret"></span>
+      <ul class="dropdown-menu">
+        <% @site_in_use_locales.each do |locale| %>
+        <li>
+          <label class="checkbox">
+            <%= check_box_tag "bulletin[bulletin_files_attributes][#{( form_file.new_record? ? 'new_bulletin_files' : "#{i}" )}][choose_lang][]", locale, form_file.choose_lang.include?(locale.to_s) %>
+            <%= t(locale.to_s) %>
+          </label>
+        </li>
+        <% end %>
+      </ul>
+      <%= hidden_field_tag "bulletin[bulletin_files_attributes][#{( form_file.new_record? ? 'new_bulletin_files' : "#{i}" )}][choose_lang][]", '' %>
+    </span>
     <% if form_qa_file.new_record? %>
       <span class="delete_file add-on btn" title="<%= t(:delete_) %>">
         <a class="icon-trash"></a>