diff --git a/app/helpers/files_helper.rb b/app/helpers/files_helper.rb
index 5683b9a05..2cd6b4400 100644
--- a/app/helpers/files_helper.rb
+++ b/app/helpers/files_helper.rb
@@ -1,5 +1,6 @@
 # encoding: utf-8
 module FilesHelper
+  include AttachmentsHelper
 
   def downloadAll containers
     paths = []
@@ -54,11 +55,11 @@ module FilesHelper
     s.html_safe
   end
 
-  #判断用户是否拥有除current_course以外的课程，需用户在该课程中角色为教师且该课程属于当前学期或下一学期
-  def has_course? user,current_course
+  #判断用户是否拥有不包含当前资源的课程，需用户在该课程中角色为教师且该课程属于当前学期或下一学期
+  def has_course? user,file
     result = false
     user.courses.each do |course|
-      if current_course.id != course.id && is_course_teacher(User.current,course) && course_in_current_or_next_term(course)
+      if !course_contains_attachment?(course,file) && is_course_teacher(User.current,course) && course_in_current_or_next_term(course)
         return true
       end
     end
diff --git a/app/views/files/_course_list.html.erb b/app/views/files/_course_list.html.erb
index 58fbcb2e9..a006ef8ab 100644
--- a/app/views/files/_course_list.html.erb
+++ b/app/views/files/_course_list.html.erb
@@ -20,7 +20,7 @@
         <%= link_to_attachment file, :download => true,:text => truncate(file.filename,length: 35, omission: '...'), :title => file.filename+"\n"+file.description.to_s, :style => "overflow: hidden; white-space: nowrap;text-overflow: ellipsis;",:class => "c_dblue f_14 f_b f_l" %>
         <% if User.current.logged? %>
           <% if is_course_teacher(User.current,@course) && file.author_id == User.current.id %>
-            <%= link_to("选入我的其他课程",quote_resource_show_course_file_path(@course,file),:class => "f_l re_select",:remote => true) if has_course?(User.current,@course) %>
+            <%= link_to("选入我的其他课程",quote_resource_show_course_file_path(@course,file),:class => "f_l re_select",:remote => true) if has_course?(User.current,file) %>
 
             <% if delete_allowed && file.container_id == @course.id && file.container_type == "Course"  %>
               <span id="is_public_<%= file.id %>">
@@ -30,7 +30,7 @@
               <!--  <#%= link_to (file.is_public? ? "公开":"私有"),"javascript:void(0)",:class=>"f_l re_open" %> -->
             <% end %>
           <% else %>
-           <%= link_to("选入我的课程",quote_resource_show_course_file_path(@course,file),:class => "f_l re_select",:remote => true) if has_course?(User.current,@course) %>
+           <%= link_to("选入我的课程",quote_resource_show_course_file_path(@course,file),:class => "f_l re_select",:remote => true) if has_course?(User.current,file) %>
           <% end %>
         <% else %>
         <% end %>