diff --git a/app/controllers/stores_controller.rb b/app/controllers/stores_controller.rb
index 2790308b..6237ef89 100644
--- a/app/controllers/stores_controller.rb
+++ b/app/controllers/stores_controller.rb
@@ -7,8 +7,22 @@ class StoresController < ApplicationController
   # menu_item :settings, :only => :settings
 
   # include ActsAsTaggableOn::TagsHelper
-
+  LIMIT = 20 unless const_defined?(:LIMIT)
   def index
+  	#Document HomeworkAttach Issue Message News Version WikiPage
+  	projects_attach
+  	@projects_attach = Attachment.includes(:attach_project).where("projects.project_type=?", 0).
+  						reorder("#{Attachment.table_name}.created_on DESC").
+  						limit(LIMIT)
+    @courses_attach = Attachment.includes(:attach_project).where("projects.project_type=?", 1).
+    					reorder("#{Attachment.table_name}.created_on DESC").
+    					limit(LIMIT)
+    @homeworks_attach = Attachment.where("container_type = 'HomeworkAttach'").
+    					reorder("created_on DESC").
+    					limit(LIMIT)
+    @memos_attach = Attachment.where("container_type = 'Memo'").
+    					reorder("created_on DESC").
+    					limit(LIMIT)
   end
   
 end
diff --git a/app/helpers/projects_helper.rb b/app/helpers/projects_helper.rb
index 63d5fea2..12e1dee6 100644
--- a/app/helpers/projects_helper.rb
+++ b/app/helpers/projects_helper.rb
@@ -268,7 +268,8 @@ module ProjectsHelper
       @projects << Project.visible.find_by_id("#{obj.project_id}")#where('id=:id', id: obj.project_id)
     end
     @projects
-  rescue NoMethodError 
+  rescue NoMethodError => e
+    logger.error "Logger.Error [ProjectsHelper] ===> #sort_project_by_hot, NoMethodError: #{e}"
     []
   end
 
@@ -285,4 +286,7 @@ module ProjectsHelper
             WHERE project_type = 0 ORDER BY  grade DESC LIMIT #{limit} ) AS t ON p.id = t.project_id ")
   end
 
+  def method_name
+    
+  end
 end
diff --git a/app/helpers/welcome_helper.rb b/app/helpers/welcome_helper.rb
index 69b06aa1..154c2a98 100644
--- a/app/helpers/welcome_helper.rb
+++ b/app/helpers/welcome_helper.rb
@@ -66,7 +66,7 @@ module WelcomeHelper
     begin
       grade = project.project_status.grade if project && project.project_status
     rescue Exception => e
-      logger.error "[WelcomeHelper] ===> #{e}"
+      logger.error "Logger.Error [WelcomeHelper] ===> #{e}"
     end
      "项目评分：".html_safe << grade.to_s
   end
diff --git a/app/models/attachment.rb b/app/models/attachment.rb
index eeab5624..63f2ad5f 100644
--- a/app/models/attachment.rb
+++ b/app/models/attachment.rb
@@ -20,6 +20,7 @@ require "fileutils"
 
 class Attachment < ActiveRecord::Base
   belongs_to :container, :polymorphic => true
+  belongs_to :attach_project, foreign_key: 'container_id', conditions: "#{Attachment.table_name}.container_type = 'Project'"
   belongs_to :author, :class_name => "User", :foreign_key => "author_id"
 
   validates_presence_of :filename, :author
diff --git a/app/models/project.rb b/app/models/project.rb
index e106ac0c..7968859e 100644
--- a/app/models/project.rb
+++ b/app/models/project.rb
@@ -151,6 +151,8 @@ class Project < ActiveRecord::Base
       where("LOWER(identifier) LIKE :p OR LOWER(name) LIKE :p ", :p => pattern)
     end
   }
+  scope :project_entities, -> { where(project_type: 0) }
+  scope :course_entities, -> { where(project_type: 1) }
   
   def new_course
     self.where('project_type = ?', 1)