#1434 解决文件重复上传的问题

app/views/boards/_course_show.html.erb

@@ -16,7 +16,7 @@
       <div class="add_frame_header" >
         <%= l(:label_message_new) %>
       </div>
-      <%= form_for @message, :url => new_board_message_path(@board), :html => {:multipart => true, :id => 'message-form'} do |f| %>
+      <%= form_for @message, :url => new_board_message_path(@board), :html => {:multipart => false, :id => 'message-form'} do |f| %>
           <%= render :partial => 'messages/form', :locals => {:f => f} %>
           <p>
             <input type="button" onclick="submitCoursesBoard();" class = "whiteButton m3p10 h30" value="<%= l(:button_submit)%>">