# File Column issue

**URL:** <https://www.ruby-forum.com/t/file-column-issue/196912>\
**Category:** Rails\
**Created:** [March 10, 2009, 7:38am UTC](https://www.ruby-forum.com/t/file-column-issue/196912 "2009-03-10T07:38:20Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![viswanathan](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/v/4491bb/32.png) [@viswanathan](https://www.ruby-forum.com/u/viswanathan)\
**Post date:** [March 10, 2009, 7:38am UTC](https://www.ruby-forum.com/t/file-column-issue/196912/1 "2009-03-10T07:38:20Z")

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Hi All,  
I’m using file\_column\_field for uploading the images it’s working  
fine.But it throws random error as shown below.  
eg.,  
\<%= file\_column\_field(“ad”,“ad\_picture”)%\>  
I’m using like this,but while uploading or editing the  
image it throws an error randomly:  
undefined method : ad\_picture\_temp forAd:#Object  
i think this issue is comes while creating the file column  
temporary(temp) object.  
It occurs randomly.In single port its working fine,but i  
configured in multiple port but it throws an error randomly.  
Can someone please help on this?  
Thanks in Advance…  
Regards,  
Viswanathan.J