Update description.

app/controllers/faqs_controller.rb

@@ -10,7 +10,7 @@ class FaqsController < ApplicationController
       end
       qa_files = qa.qa_files.map do |qa_file|
         {
-          "file_url" => qa_file.file.url,
+          "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
@@ -39,7 +39,7 @@ class FaqsController < ApplicationController
 
     faqs_files = faq.qa_files.collect do |f|
       {
-        "file_url" => f.file.url,
+        "file_url" => f.file.url + "\" title=\"#{f.file_title}",
         "file_title" => f.title
       }
     end

app/models/qa_file.rb

@@ -10,5 +10,13 @@ class QaFile
   field :title, localize: true
   
   belongs_to :qa
-
+  def file_title
+    if self.description.present?
+      return self.description
+    elsif self.title.present?
+      return self.title
+    else
+      return File.basename(self.file.path)
+    end
+  end
 end

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

@@ -142,7 +142,7 @@
 <div class="control-group">
   <label class="control-label muted"><%= t(:file_) %></label>
   <div class="controls">
-
+    <div id="file_description_hint"><%= t("qa.file_description_hint") %></div>
     <!-- Exist -->
     <% if @qa && !@qa.qa_files.blank? %>
       <div class="exist">

config/locales/en.yml

@@ -20,6 +20,7 @@ en:
     answer: Answer
     update_user: Last modified
   qa:
+    file_description_hint: 'File Description will display in the title of file link.(When placing mouse on the link,the title will display)'
     create_qa_category_success: FAQ category was successfully created
     editing_web_resource: Editing FAQ
     list_of_web_resource: FAQ list

config/locales/zh_tw.yml

@@ -23,3 +23,4 @@ zh_tw:
     list_of_web_resource: 問與答列表
     new_web_resource: 新增問與答
     update_qa_category_success:  問與答已成功更新
+    file_description_hint: '檔案描述將會顯示在前台檔案連結的title(把滑鼠放在連結上會出現的文字)'