diff --git a/app/controllers/files_controller.rb b/app/controllers/files_controller.rb
index 41518e2f1..2f33ab554 100644
--- a/app/controllers/files_controller.rb
+++ b/app/controllers/files_controller.rb
@@ -71,9 +71,9 @@ class FilesController < ApplicationController
         @searched_attach = paginateHelper @result,10
       end
 
-    rescue Exception => e
-      #render 'stores'
-      redirect_to stores_url
+    #rescue Exception => e
+    #  #render 'stores'
+    #  redirect_to search_course_files_url
     end
   end
 
diff --git a/app/helpers/files_helper.rb b/app/helpers/files_helper.rb
index 2cd6b4400..2ec7e6f45 100644
--- a/app/helpers/files_helper.rb
+++ b/app/helpers/files_helper.rb
@@ -107,13 +107,46 @@ module FilesHelper
   def visable_attachemnts_insite attachments,course
     result = []
     attachments.each do |attachment|
-      if attachment.is_public? || (attachment.container_type == "Course" && attachment.container_id == course.id  && User.current.member_of_course?(Course.find(attachment.container_id)))|| attachment.author_id == User.current.id
+      if attachment_candown(attachment) || (attachment.container_type == "Course" && attachment.container_id == course.id  && User.current.member_of_course?(Course.find(attachment.container_id)))|| attachment.author_id == User.current.id
         result << attachment
       end
     end
     result
   end
 
+  def attachment_candown attachment
+    candown = false
+    if attachment.container.class.to_s != "HomeworkAttach" && (attachment.container.has_attribute?(:project) || attachment.container.has_attribute?(:project_id)) && attachment.container.project
+      project = attachment.container.project
+      candown= User.current.member_of?(project) || (project.is_public && attachment.is_public == 1)
+    elsif attachment.container.is_a?(Project)
+      project = attachment.container
+      candown= User.current.member_of?(project) || (project.is_public && attachment.is_public == 1)
+    elsif (attachment.container.has_attribute?(:board) || attachment.container.has_attribute?(:board_id)) && attachment.container.board &&
+        attachment.container.board.project
+      project = attachment.container.board.project
+      candown = User.current.member_of?(project) || (project.is_public && attachment.is_public == 1)
+    elsif (attachment.container.has_attribute?(:course) ||attachment.container.has_attribute?(:course_id) ) && attachment.container.course
+      course = attachment.container.course
+      candown = User.current.member_of_course?(course) || (course.is_public==1 && attachment.is_public == 1)
+    elsif attachment.container.is_a?(Course)
+      course = attachment.container
+      candown= User.current.member_of_course?(course) || (course.is_public==1 && attachment.is_public == 1)
+    elsif (attachment.container.has_attribute?(:board) || attachment.container.has_attribute?(:board_id)) && attachment.container.board &&
+        attachment.container.board.course
+      course = attachment.container.board.course
+      candown= User.current.member_of_course?(course) || (course.is_public==1 && attachment.is_public == 1)
+    elsif attachment.container.class.to_s=="HomeworkAttach" && attachment.container.bid.reward_type == 3
+      candown = true
+    elsif  attachment.container_type == "Bid" && attachment.container && attachment.container.courses
+      course = attachment.container.courses.first
+      candown = User.current.member_of_course?(attachment.container.courses.first) || (course.is_public == 1 && attachment.is_public == 1)
+    else
+      candown = (attachment.is_public == 1 || attachment.is_public == true)
+    end
+    candown
+  end
+
 
 
 end
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