Rails - Mar 2010 - NoMethodError (private method `chomp' called for nil:NilClas

Hi:

I am using Rails 2.3.5 with paperclip, mime-types and uploadify. So far
the application is working in development environment. But when I
switched to the production environment, it produced the following error.

NoMethodError (private method `chomp'' called for nil:NilClass):
  /usr/lib/ruby/gems/1.8/gems/mime-types-1.16/lib/mime/types.rb:665:in
`type_for''
  /usr/lib/ruby/gems/1.8/gems/mime-types-1.16/lib/mime/types.rb:730:in
`type_for''
  app/controllers/assets_controller.rb:180:in `new_asset_from_params''
  haml (2.2.22) rails/./lib/sass/plugin/rails.rb:20:in `process''
  app/middleware/flash_session_cookie_middleware.rb:15:in `call''

It seems that the error has something to do with Mime-types. But I could
not work it out. Does anyone have the similar issue or possible
suggestions?

Thanks
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On 25 March 2010 23:45, Jefflin Huang
<lists-fsXkhYbjdPsEEoCn2XhGlw@public.gmane.org>
wrote:
> Hi:
>
> I am using Rails 2.3.5 with paperclip, mime-types and uploadify. So far
> the application is working in development environment. But when I
> switched to the production environment, it produced the following error.
>
> NoMethodError (private method `chomp'' called for nil:NilClass):
>  /usr/lib/ruby/gems/1.8/gems/mime-types-1.16/lib/mime/types.rb:665:in
> `type_for''
>  /usr/lib/ruby/gems/1.8/gems/mime-types-1.16/lib/mime/types.rb:730:in
> `type_for''
>  app/controllers/assets_controller.rb:180:in
`new_asset_from_params''
So what is this line (and a few around it)?

Colin
>  haml (2.2.22) rails/./lib/sass/plugin/rails.rb:20:in `process''
>  app/middleware/flash_session_cookie_middleware.rb:15:in `call''
>
> It seems that the error has something to do with Mime-types. But I could
> not work it out. Does anyone have the similar issue or possible
> suggestions?
>
> Thanks
> --
> Posted via http://www.ruby-forum.com/.
>
> --
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>
>
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Hi:

new_asset_from_params is used to create the Asset object based on the 
parameters from URL. This method as been assigned as a before_filter.

And after extended logging of the code, I finally figured out the 
problem. The problem was caused my own doing really.

It turns out that I have made a copy of the assets_controller.rb as 
''Copy of assets_controller.rb'' under the controllers directory
before.
Under the development environment, everything works. But under 
production environment, it seems that rails loads both controllers and 
executed the new_asset_from_params twice. The first time, everything was 
working fine. But at the second time, it caused the error. After I 
removed the copy of the assets_controller, the application works without 
any issue.

So thanks for reading the issue I had. But if anyone can share some 
light on why the behaviors are different between production and 
development environment in my case, that will be very helpful for my 
understanding.

regards

Jefflin





Colin Law wrote:
> On 25 March 2010 23:45, Jefflin Huang
<lists-fsXkhYbjdPsEEoCn2XhGlw@public.gmane.org> wrote:
>> `type_for''
>> �app/controllers/assets_controller.rb:180:in
`new_asset_from_params''
> 
> So what is this line (and a few around it)?
> 
> Colin
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