Rails - Nov 2006 - ActionMailer & controller

Hi,

I have an actionmailer script that happily processes an inbox. It is 
called via script & reads emails & grabs the attachments for further 
processing

I want to be able to access a method [process_attachment] in 
app/controllers/application.rb, but the mailman routine does not appear 
to be able to access it. I''ve tried both including environment.rb &
app/controllers/application.rb but still get the error - undefined 
method ''process_attachment''

Is there anyway to do this, or do I have to move the logic somewhere 
else..??

--------------------------------------------
mailman.rb
--------------------------------------------

require File.dirname(__FILE__) +
''/../../config/environment.rb''
require File.dirname(__FILE__) +
''/../../app/controllers/application.rb''

class Inbound < ActiveRecord::Base
end

class Mailman < ActionMailer::Base

  def receive(email)
      email.attachments.each do |attachment|
        inbound            = Inbound.new
        inbound.attachment = attachment
        process_attachment(inbound)
      end
    end
  end

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Matt Stone wrote:
> Hi,
>
> I have an actionmailer script that happily processes an inbox. It is 
> called via script & reads emails & grabs the attachments for
further
> processing
>
> I want to be able to access a method [process_attachment] in 
> app/controllers/application.rb, but the mailman routine does not appear 
> to be able to access it. I''ve tried both including environment.rb
&
> app/controllers/application.rb but still get the error - undefined 
> method ''process_attachment''
>
> Is there anyway to do this, or do I have to move the logic somewhere 
> else..??
>
> --------------------------------------------
> mailman.rb
> --------------------------------------------
>
> require File.dirname(__FILE__) +
''/../../config/environment.rb''
> require File.dirname(__FILE__) +
''/../../app/controllers/application.rb''
>
> class Inbound < ActiveRecord::Base
> end
>
> class Mailman < ActionMailer::Base
>
>   def receive(email)
>       email.attachments.each do |attachment|
>         inbound            = Inbound.new
>         inbound.attachment = attachment
>         process_attachment(inbound)
>       end
>     end
>   end
>
>   
Hey

I''m not sure if this is the best method, its probably not even a good
method :] but it''s something you could try in the meantime :)

extract the method into a separate file into your /lib directory, aka.
/lib/my_truly_global_methods.rb

Then require this file in either your environment.rb, or (less
blasphemously) in your mailer class.
Doesn''t feel very elegant, I know, but I''m not sure if
something like
helper_method exists for mailers...

Hope this helps...
Cheery-o
Gustav Paul
gustav-PUm+PnBUKx7YkQIYctQFYw@public.gmane.org

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Hi Matt,

Dumb question:
Where is the methode process_attachment currently defined?

Regards, Simon


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simon.martinelli-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org
wrote:
> Hi Matt,
> 
> Dumb question:
> Where is the methode process_attachment currently defined?
> 
> Regards, Simon
Simon,

Thanks for your response, I really appreciate it.

process_attachement is defined in app/controller/application.rb. It also 
processes uploaded files.

I want to have the same logic process the files uploaded via a browser, 
& files sent as attachments.

I''m really confused as to how is the best way to achieve this.

rgds,
- matt.

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Ah ok. Now I understand.

Your problem is, that ApplicationController is the parent class of all
Controllers in a Ruby on Rails Application.
But you extend ActionMailer and ActionMailer doesn''t extends
ApplicationController.

You could do the following

class Mailman < ActionMailer::Base

  def receive(email)
      application = ApplicationController.new
      email.attachments.each do |attachment|
        inbound            = Inbound.new
        inbound.attachment = attachment
        application.process_attachment(inbound)
      end
    end
  end

I''m not sure if this is an elegant solution but it should work.
Otherwise put process_attachement in any class and you can instantiate
this instead of ApplicationController.

Cheers, Simon


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Simon,

Thanks for that - works perfectly. The explanation was great, I know 
understand why it works perfectly.

rgds,
- matt.

simon.martinelli-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org
wrote:
> Ah ok. Now I understand.
> 
> Your problem is, that ApplicationController is the parent class of all
> Controllers in a Ruby on Rails Application.
> But you extend ActionMailer and ActionMailer doesn''t extends
> ApplicationController.
> 
> You could do the following
> 
> class Mailman < ActionMailer::Base
> 
>   def receive(email)
>       application = ApplicationController.new
>       email.attachments.each do |attachment|
>         inbound            = Inbound.new
>         inbound.attachment = attachment
>         application.process_attachment(inbound)
>       end
>     end
>   end
> 
> I''m not sure if this is an elegant solution but it should work.
> Otherwise put process_attachement in any class and you can instantiate
> this instead of ApplicationController.
> 
> Cheers, Simon

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