实现修改、删除作业后页面跳转

app/controllers/homework_attach_controller.rb

@@ -32,16 +32,17 @@ class HomeworkAttachController < ApplicationController
           :bid_id => bid_id
       }
 
-      @bid = Bid.find bid_id
-      @homework_list = @bid.homeworks
+      #@bid = Bid.find bid_id
+      #@homework_list = @bid.homeworks
 
       @homework = HomeworkAttach.new(options)
       @homework.save_attachments(params[:attachments])
       render_attachment_warning_if_needed(@homework)
 
-      respond_to do |format|
       if @homework.save
-          redirect_to project_for_bid_path
+        respond_to do |format|
+          format.html { redirect_to project_for_bid_path @homework.bid }
+          format.json { head :no_content }
         end
       end
     #end
@@ -68,20 +69,22 @@ class HomeworkAttachController < ApplicationController
     @homework.name = name
     @homework.description = description
     #@homework.save_attachments(params[:attachments])
-    @homework.save
-    #@homework.name = params[:name]
-    #@homework.name = params[:description]
-    #@homework.save
-    #@homework.update_attribute(params[:homework])
+    if @homework.save
+      respond_to do |format|
+        format.html { redirect_to project_for_bid_path @homework.bid }
+        format.json { head :no_content }
+      end
+    end
   end
 
   def destroy
     @homework = HomeworkAttach.find(params[:id])
-    @homework.destroy
-    #respond_to do |format|
-    #  format.html {render @homework}
-    #  format.json {render json: @homework}
-    #end
+    if @homework.destroy
+      respond_to do |format|
+        format.html { redirect_to project_for_bid_path @homework.bid }
+        format.json { head :no_content }
+      end
+    end
   end
 
   #显示作业信息

app/views/bids/_homework_list.html.erb

@@ -25,7 +25,7 @@
 <% end %>
 <% display_id = im_watching_student_id? @bid%>
 <% @homework_list.each do |homework|%>
-	<table width="660px" border="0" align="center">
+	<table width="660px" border="0" align="center" id="homework_attach_<%= homework.id  %>" >
 		<tr>
 			<td colspan="2" valign="top" width="50" ><%= image_tag(url_to_avatar(homework.user), :class => "avatar")%></td>
 			<td>