diff --git a/app/controllers/users_controller.rb b/app/controllers/users_controller.rb
index 0fcf35aff..7b4d488a9 100644
--- a/app/controllers/users_controller.rb
+++ b/app/controllers/users_controller.rb
@@ -41,7 +41,7 @@ class UsersController < ApplicationController
                                   :activity_score_index, :influence_score_index, :score_index,:show_new_score, :topic_new_score_index, :project_new_score_index,
                                   :activity_new_score_index, :influence_new_score_index, :score_new_index,:user_projects_index]
   before_filter :auth_user_extension, only: :show
-  before_filter :rest_user_score, only: :show
+  #before_filter :rest_user_score, only: :show
   #before_filter :select_entry, only: :user_projects
   accept_api_auth :index, :show, :create, :update, :destroy,:tag_save  , :tag_saveEx
   
diff --git a/app/controllers/zipdown_controller.rb b/app/controllers/zipdown_controller.rb
index 12637e2fb..b329e4c27 100644
--- a/app/controllers/zipdown_controller.rb
+++ b/app/controllers/zipdown_controller.rb
@@ -7,17 +7,6 @@ class ZipdownController < ApplicationController
   SAVE_FOLDER = "#{Rails.root}/files"
   OUTPUT_FOLDER = "#{Rails.root}/tmp/archiveZip"
 
-  #通过作业Id找到项目（课程）
-  def find_project_by_bid_id
-    obj_class = params[:obj_class]
-    obj_id = params[:obj_id]
-    obj = obj_class.constantize.find(obj_id)
-    case obj.class.to_s.to_sym
-      when :Bid
-        @project = obj.courses[0]
-    end
-  end
-
   def assort
     if params[:obj_class] == "Bid"
       bid = Bid.find params[:obj_id]
@@ -33,8 +22,8 @@ class ZipdownController < ApplicationController
     end
     send_file zipfile, :filename => bid.name + ".zip", :type => detect_content_type(zipfile) if zipfile
 
-  rescue Exception => e
-    render file: 'public/no_file_found.html'
+  #rescue Exception => e
+  #  render file: 'public/no_file_found.html'
   end
 
   #下载某一学生的作业的所有文件
@@ -56,12 +45,23 @@ class ZipdownController < ApplicationController
     else
       render_403
     end
-  rescue => e
-    render file: 'public/file_not_found.html'
+  #rescue => e
+  #  render file: 'public/file_not_found.html'
   end
 
   private
 
+  #通过作业Id找到项目（课程）
+  def find_project_by_bid_id
+    obj_class = params[:obj_class]
+    obj_id = params[:obj_id]
+    obj = obj_class.constantize.find(obj_id)
+    case obj.class.to_s.to_sym
+      when :Bid
+        @project = obj.courses[0]
+    end
+  end
+
   def zip_bid(bid)
     # Todo: User Access Controll
     bid_homework_path = []
@@ -101,10 +101,20 @@ class ZipdownController < ApplicationController
 
     Zip::File.open(zipfile_name, Zip::File::CREATE) do |zipfile|
       input_filename.each do |filename|
+        flag = true
+        index = 1
         rename_file = ic.iconv( (File.basename(filename)) ).to_s
         rename_file = ic.iconv( filename_to_real( File.basename(filename))).to_s if is_attachment
 
-        zipfile.add(rename_file, filename)
+        begin
+          zipfile.add(rename_file, filename)
+          flag = false
+        rescue Exception => e
+          zipfile.get_output_stream('FILE_NOTICE.txt') do |os|
+            os.write l(:label_file_exist)
+          end
+          next
+        end
       end
       unless not_exist_file.empty?
         zipfile.get_output_stream('FILE_LOST.txt') do |os|
@@ -113,9 +123,9 @@ class ZipdownController < ApplicationController
       end
     end
     zipfile_name
-  rescue Errno => e
-    logger.error "[zipdown#zipping] ===> #{e}"
-    @error = e
+  #rescue Errno => e
+  #  logger.error "[zipdown#zipping] ===> #{e}"
+  #  @error = e
   end
   def detect_content_type(name)
     content_type = Redmine::MimeType.of(name)
diff --git a/app/views/layouts/_base_feedback.html.erb b/app/views/layouts/_base_feedback.html.erb
index 859ed0361..62b3a01e3 100644
--- a/app/views/layouts/_base_feedback.html.erb
+++ b/app/views/layouts/_base_feedback.html.erb
@@ -62,7 +62,7 @@ function f_submit()
 <style type="text/css">
 /*浮窗*/ 
 body{ height:3000px; font-family:'微软雅黑';} 
-div,ul,li,body,h3,p{margin:0; padding:0;} 
+
 a{ text-decoration:none;}
 #roll{ background:url(/images/f_opnion.jpg) 0 0 no-repeat;width:157px; height:332px; position:absolute;}
 .opnionBox{ width: 130px; height:146px; margin:76px auto 20px; } 
@@ -101,10 +101,10 @@ a:hover.opnionButton{ text-decoration:underline;}
 	<% get_memo %>
 		<%= form_for(@new_memo, :url => create_feedback_forum_path(@public_forum)) do |f|  %>
 	<div class="actions" style="max-width:680px">
-		<p>
+		<p style="margin:0; padding:0;">
           <%= f.text_area :subject, :class => "opnionText",:placeholder => "有什么想说的，尽管来咆哮吧~~"%>
         </p>
-        <p>
+        <p style="margin:0; padding:0;">
           <%= f.hidden_field :content, :required => true ,:value=>'该贴来自用户反馈！'%>
         </p>
 		  <%#= f.submit :value => l(:label_memo_create), :class => "opnionButton", :id => "button1" %>
diff --git a/config/locales/zh.yml b/config/locales/zh.yml
index d6e7815f9..568a60cac 100644
--- a/config/locales/zh.yml
+++ b/config/locales/zh.yml
@@ -2239,5 +2239,6 @@ zh:
   label_course_prompt: 课程：
   label_contain_resource: 已包含资源：
   label_quote_resource_failed: ",此资源引用失败! "
-  label_file_lost: 以下文件在服务器丢失，请联系相关人员重新上传：
+  label_file_lost: 以下无法成功下载，请联系相关人员重新上传：
+  label_file_exist: 该作品中有重复命名文件，请通过文件名学号和姓名信息进入该作业详细界面手动下载
 
diff --git a/db/schema.rb b/db/schema.rb
index eea50de35..9c6f4eac3 100644
--- a/db/schema.rb
+++ b/db/schema.rb
@@ -831,8 +831,9 @@ ActiveRecord::Schema.define(:version => 20150112024820) do
     t.integer  "user_id"
     t.datetime "published_at"
     t.datetime "closed_at"
-    t.datetime "created_at",     :null => false
-    t.datetime "updated_at",     :null => false
+    t.datetime "created_at",        :null => false
+    t.datetime "updated_at",        :null => false
+    t.text     "polls_description"
   end
 
   create_table "praise_tread_caches", :force => true do |t|
diff --git a/lib/plugins/acts_as_activity_provider/lib/acts_as_activity_provider.rb b/lib/plugins/acts_as_activity_provider/lib/acts_as_activity_provider.rb
index c809ac9b4..17f834c84 100644
--- a/lib/plugins/acts_as_activity_provider/lib/acts_as_activity_provider.rb
+++ b/lib/plugins/acts_as_activity_provider/lib/acts_as_activity_provider.rb
@@ -91,12 +91,19 @@ module Redmine
               ActiveSupport::Deprecation.warn "acts_as_activity_provider with implicit :permission option is deprecated. Add a visible scope to the #{self.name} model or use explicit :permission option."
               scope = scope.scoped(:conditions => Project.allowed_to_condition(user, "view_#{self.name.underscore.pluralize}".to_sym, options))
             end
-            to = scope.select(:created_on).order("created_on desc").first.created_on
-            if options[:course]
-              from = (to - days) > created_time ? (to - days) : created_time.to_date
-            else
-              from =  to - days -1.years
+            unless scope.all(provider_options[:find_options].dup).first.nil?
+              if provider_options[:timestamp].include? "updated_on"
+                to = scope.scoped(:order => "#{provider_options[:timestamp]} desc").all(provider_options[:find_options].dup).first.updated_on
+              else
+                to = scope.scoped(:order => "#{provider_options[:timestamp]} desc").all(provider_options[:find_options].dup).first.created_on
+              end
+              if options[:course]
+                from = (to - days.days) > created_time ? (to - days.days) : created_time.to_date
+              else
+                from =  to - days.days - 1.years
+              end
             end
+
             if from && to
               scope = scope.scoped(:conditions => ["#{provider_options[:timestamp]} BETWEEN ? AND ?", from, to])
             end