diff --git a/app/helpers/poll_helper.rb b/app/helpers/poll_helper.rb
index 170e1b92c..84e12f3b1 100644
--- a/app/helpers/poll_helper.rb
+++ b/app/helpers/poll_helper.rb
@@ -37,7 +37,17 @@ module PollHelper
       pv.vote_text
     end
   end
-  
+
+  #判断用户是否已经提交了问卷
+  def has_commit_poll?(poll_id,user_id)
+    pu = PollUser.find_by_poll_id_and_user_id(poll_id,user_id)
+    if pu.nil?
+      false
+    else
+      true
+    end
+  end
+
   #统计答题百分比，统计结果保留两位小数
   def statistics_result_percentage(e, t)
     e = e.to_f