Rails - Jan 2010 - ActionMailer does not find templates in production mode

Hello everyone,

I am currently struggling with the following issue that only seems to appear 
in my production environment:

When attempting to send a mail from an ActionMailer the template location 
algorithm does not seem to pick up the corresponding template:

ActionView::MissingTemplate (Missing template 
event_mailer/approval_requested_notification.erb in view path app/views):
  app/models/event_observer.rb:3:in `after_enter_awaiting_approval''
  /usr/lib/ruby/1.8/observer.rb:185:in `notify_observers''
  /usr/lib/ruby/1.8/observer.rb:184:in `each''
  /usr/lib/ruby/1.8/observer.rb:184:in `notify_observers''
  (eval):10:in `create_or_update_without_callbacks''
  app/controllers/event_controller.rb:71:in `request_approval''
  public/dispatch.fcgi:24

However, I do have a corresponding template named 
"approval_requested_notification.text.plain.erb" in
"app/views/event_mailer",
which is correctly picked up in development mode. In production mode, however, 
the content type infix is omitted while searching for the template.

This happens with Rails 2.3.4. Any suggestions how to sort this out are much 
appreciated!

Thanks,
Thilo

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On Monday 25 January 2010 03:00:08 Thilo-Alexander Ginkel
wrote:
> I am currently struggling with the following issue that only seems to
>  appear in my production environment:
> 
> When attempting to send a mail from an ActionMailer the template location
> algorithm does not seem to pick up the corresponding template:
> 
> ActionView::MissingTemplate (Missing template
> event_mailer/approval_requested_notification.erb in view path app/views):
>   app/models/event_observer.rb:3:in
`after_enter_awaiting_approval''
>   /usr/lib/ruby/1.8/observer.rb:185:in `notify_observers''
>   /usr/lib/ruby/1.8/observer.rb:184:in `each''
>   /usr/lib/ruby/1.8/observer.rb:184:in `notify_observers''
>   (eval):10:in `create_or_update_without_callbacks''
>   app/controllers/event_controller.rb:71:in `request_approval''
>   public/dispatch.fcgi:24
turns out that the issue is related to the fact that mod_fcgi (used in 
production) sets a different working directory than WEBRick (used in 
development). The following code in environment.rb can be used as a 
workaround:

# work around a mod_fcgi / ActionMailer bug
Dir.chdir(File.dirname(__FILE__) << ''/../'')

Regards,
Thilo

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