# Upload\_column NoMethodError

**URL:** <https://www.ruby-forum.com/t/upload-column-nomethoderror/146874>\
**Category:** Rails\
**Created:** [August 26, 2008, 11:53am UTC](https://www.ruby-forum.com/t/upload-column-nomethoderror/146874 "2008-08-26T11:53:29Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![adinda\_p](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/5fc32e/32.png) [@adinda\_p](https://www.ruby-forum.com/u/adinda_p)\
**Post date:** [August 26, 2008, 11:53am UTC](https://www.ruby-forum.com/t/upload-column-nomethoderror/146874/1 "2008-08-26T11:53:29Z")

</div>

Hi all,

I’m using uploadcolumn plugin for file uploading. Followed the README  
file.  
Put “upload\_column :src\_file” in my model file as instructed, and i got  
this  
NoMethodError for the upload\_column. This is the full trace:

/usr/lib/ruby/gems/1.8/gems/activerecord-2.1.0/lib/active\_record/base.rb:1667:in  
`method_missing' app/models/speech.rb:2 /usr/lib/ruby/gems/1.8/gems/activesupport-2.1.0/lib/active_support/dependencies.rb:215:in`load\_without\_new\_constant\_marking’  
/usr/lib/ruby/gems/1.8/gems/activesupport-2.1.0/lib/active\_support/dependencies.rb:215:in  
`load_file' /usr/lib/ruby/gems/1.8/gems/activesupport-2.1.0/lib/active_support/dependencies.rb:354:in`new\_constants\_in’  
/usr/lib/ruby/gems/1.8/gems/activesupport-2.1.0/lib/active\_support/dependencies.rb:214:in  
`load_file' /usr/lib/ruby/gems/1.8/gems/activesupport-2.1.0/lib/active_support/dependencies.rb:95:in`require\_or\_load’  
/usr/lib/ruby/gems/1.8/gems/activesupport-2.1.0/lib/active\_support/dependencies.rb:260:in  
`load_missing_constant' /usr/lib/ruby/gems/1.8/gems/activesupport-2.1.0/lib/active_support/dependencies.rb:467:in`const\_missing’  
/usr/lib/ruby/gems/1.8/gems/activesupport-2.1.0/lib/active\_support/dependencies.rb:479:in  
`const_missing' /usr/lib/ruby/gems/1.8/gems/activesupport-2.1.0/lib/active_support/dependencies.rb:485:in`send’  
/usr/lib/ruby/gems/1.8/gems/activesupport-2.1.0/lib/active\_support/dependencies.rb:485:in  
`const_missing' app/controllers/speeches_controller.rb:27:in`new’  
/usr/lib/ruby/gems/1.8/gems/actionpack-2.1.0/lib/action\_controller/base.rb:1162:in  
`send' /usr/lib/ruby/gems/1.8/gems/actionpack-2.1.0/lib/action_controller/base.rb:1162:in`perform\_action\_without\_filters’  
/usr/lib/ruby/gems/1.8/gems/actionpack-2.1.0/lib/action\_controller/filters.rb:580:in  
`call_filters' /usr/lib/ruby/gems/1.8/gems/actionpack-2.1.0/lib/action_controller/filters.rb:573:in`perform\_action\_without\_benchmark’  
/usr/lib/ruby/gems/1.8/gems/actionpack-2.1.0/lib/action\_controller/benchmarking.rb:68:in  
`perform_action_without_rescue' /usr/lib/ruby/1.8/benchmark.rb:293:in`measure’  
/usr/lib/ruby/gems/1.8/gems/actionpack-2.1.0/lib/action\_controller/benchmarking.rb:68:in  
`perform_action_without_rescue' /usr/lib/ruby/gems/1.8/gems/actionpack-2.1.0/lib/action_controller/rescue.rb:201:in`perform\_action\_without\_caching’  
/usr/lib/ruby/gems/1.8/gems/actionpack-2.1.0/lib/action\_controller/caching/sql\_cache.rb:13:in  
`perform_action' /usr/lib/ruby/gems/1.8/gems/activerecord-2.1.0/lib/active_record/connection_adapters/abstract/query_cache.rb:33:in`cache’  
/usr/lib/ruby/gems/1.8/gems/activerecord-2.1.0/lib/active\_record/query\_cache.rb:8:in  
`cache' /usr/lib/ruby/gems/1.8/gems/actionpack-2.1.0/lib/action_controller/caching/sql_cache.rb:12:in`perform\_action’  
/usr/lib/ruby/gems/1.8/gems/actionpack-2.1.0/lib/action\_controller/base.rb:529:in  
`send' /usr/lib/ruby/gems/1.8/gems/actionpack-2.1.0/lib/action_controller/base.rb:529:in`process\_without\_filters’  
/usr/lib/ruby/gems/1.8/gems/actionpack-2.1.0/lib/action\_controller/filters.rb:569:in  
`process_without_session_management_support' /usr/lib/ruby/gems/1.8/gems/actionpack-2.1.0/lib/action_controller/session_management.rb:130:in`process’  
/usr/lib/ruby/gems/1.8/gems/actionpack-2.1.0/lib/action\_controller/base.rb:389:in  
`process' /usr/lib/ruby/gems/1.8/gems/actionpack-2.1.0/lib/action_controller/dispatcher.rb:149:in`handle\_request’  
/usr/lib/ruby/gems/1.8/gems/actionpack-2.1.0/lib/action\_controller/dispatcher.rb:107:in  
`dispatch' /usr/lib/ruby/gems/1.8/gems/actionpack-2.1.0/lib/action_controller/dispatcher.rb:104:in`synchronize’  
/usr/lib/ruby/gems/1.8/gems/actionpack-2.1.0/lib/action\_controller/dispatcher.rb:104:in  
`dispatch' /usr/lib/ruby/gems/1.8/gems/actionpack-2.1.0/lib/action_controller/dispatcher.rb:120:in`dispatch\_cgi’  
/usr/lib/ruby/gems/1.8/gems/actionpack-2.1.0/lib/action\_controller/dispatcher.rb:35:in  
`dispatch' /usr/lib/ruby/gems/1.8/gems/mongrel-1.0.1/lib/mongrel/rails.rb:78:in`process’  
/usr/lib/ruby/gems/1.8/gems/mongrel-1.0.1/lib/mongrel/rails.rb:76:in  
`synchronize' /usr/lib/ruby/gems/1.8/gems/mongrel-1.0.1/lib/mongrel/rails.rb:76:in`process’  
/usr/lib/ruby/gems/1.8/gems/mongrel-1.0.1/lib/mongrel.rb:616:in  
`process_client' /usr/lib/ruby/gems/1.8/gems/mongrel-1.0.1/lib/mongrel.rb:615:in`each’  
/usr/lib/ruby/gems/1.8/gems/mongrel-1.0.1/lib/mongrel.rb:615:in  
`process_client' /usr/lib/ruby/gems/1.8/gems/mongrel-1.0.1/lib/mongrel.rb:734:in`run’  
/usr/lib/ruby/gems/1.8/gems/mongrel-1.0.1/lib/mongrel.rb:734:in  
`initialize' /usr/lib/ruby/gems/1.8/gems/mongrel-1.0.1/lib/mongrel.rb:734:in`new’  
/usr/lib/ruby/gems/1.8/gems/mongrel-1.0.1/lib/mongrel.rb:734:in `run' /usr/lib/ruby/gems/1.8/gems/mongrel-1.0.1/lib/mongrel.rb:718:in`initialize’  
/usr/lib/ruby/gems/1.8/gems/mongrel-1.0.1/lib/mongrel.rb:718:in `new' /usr/lib/ruby/gems/1.8/gems/mongrel-1.0.1/lib/mongrel.rb:718:in`run’  
/usr/lib/ruby/gems/1.8/gems/mongrel-1.0.1/lib/mongrel/configurator.rb:271:in  
`run' /usr/lib/ruby/gems/1.8/gems/mongrel-1.0.1/lib/mongrel/configurator.rb:270:in`each’  
/usr/lib/ruby/gems/1.8/gems/mongrel-1.0.1/lib/mongrel/configurator.rb:270:in  
`run' /usr/lib/ruby/gems/1.8/gems/mongrel-1.0.1/bin/mongrel_rails:126:in`run’  
/usr/lib/ruby/gems/1.8/gems/mongrel-1.0.1/lib/mongrel/command.rb:211:in  
`run' /usr/lib/ruby/gems/1.8/gems/mongrel-1.0.1/bin/mongrel_rails:242 /usr/lib/ruby/gems/1.8/gems/activesupport-2.1.0/lib/active_support/dependencies.rb:502:in`load’  
/usr/lib/ruby/gems/1.8/gems/activesupport-2.1.0/lib/active\_support/dependencies.rb:502:in  
`load' /usr/lib/ruby/gems/1.8/gems/activesupport-2.1.0/lib/active_support/dependencies.rb:354:in`new\_constants\_in’  
/usr/lib/ruby/gems/1.8/gems/activesupport-2.1.0/lib/active\_support/dependencies.rb:502:in  
`load' /usr/lib/ruby/gems/1.8/gems/rails-2.1.0/lib/commands/servers/mongrel.rb:64 /usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in`gem\_original\_require’  
/usr/lib/ruby/site\_ruby/1.8/rubygems/custom\_require.rb:27:in `require' /usr/lib/ruby/gems/1.8/gems/activesupport-2.1.0/lib/active_support/dependencies.rb:509:in`require’  
/usr/lib/ruby/gems/1.8/gems/activesupport-2.1.0/lib/active\_support/dependencies.rb:354:in  
`new_constants_in' /usr/lib/ruby/gems/1.8/gems/activesupport-2.1.0/lib/active_support/dependencies.rb:509:in`require’  
/usr/lib/ruby/gems/1.8/gems/rails-2.1.0/lib/commands/server.rb:39  
/usr/lib/ruby/site\_ruby/1.8/rubygems/custom\_require.rb:27:in  
`gem_original_require' /usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in`require’  
script/server:3

Did i miss something?

Thanks,

Dida

---

<div class="post-metadata">

**Author:** ![adinda\_p](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/5fc32e/32.png) [@adinda\_p](https://www.ruby-forum.com/u/adinda_p)\
**Post date:** [August 26, 2008, 4:10pm UTC](https://www.ruby-forum.com/t/upload-column-nomethoderror/146874/2 "2008-08-26T16:10:12Z")

</div>

On Tue, Aug 26, 2008 at 2:52 AM, Adinda P. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid)  
wrote:

> `load\_without\_new\_constant\_marking’
> 
> `const_missing' `perform\_action\_without\_benchmark’  
> `perform_action' /usr/lib/ruby/gems/1.8/gems/actionpack-2.1.0/lib/action_controller/base.rb:529:in `handle\_request’  
> /usr/lib/ruby/gems/1.8/gems/actionpack-2.1.0/lib/action\_controller/dispatcher.rb:35:in  
> /usr/lib/ruby/gems/1.8/gems/mongrel-1.0.1/lib/mongrel.rb:615:in `each' /usr/lib/ruby/gems/1.8/gems/mongrel-1.0.1/lib/mongrel.rb:718:in `new’  
> /usr/lib/ruby/gems/1.8/gems/mongrel-1.0.1/lib/mongrel/command.rb:211:in  
> `load’
> 
> Thanks,
> 
> Dida

By the looks of it… Rails isn’t able to load the plugin for some  
reason. If you haven’t gotten very far with it, you might look at  
using the paperclip plugin[1] for handling file uploads.

[1] [http://www.thoughtbot.com/projects/paperclip](http://www.thoughtbot.com/projects/paperclip)

Best of luck.

Cheers,  
Robby

–  
Robby R.  
Chief Evangelist, Partner

PLANET ARGON, LLC  
design // development // hosting

> **[Planet Argon](https://www.planetargon.com/)**
>
> Planet Argon is a Ruby on Rails development agency specializing in maintenance and support for existing Rails apps. Based in Portland, OR, Planet Argon has been a member of the Rails community since 2004.

[http://www.robbyonrails.com/](http://www.robbyonrails.com/)  
aim: planetargon

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