Using acts_as_api with Paperclip

[adampash]

First, thanks so much for acts_as_api—very useful!

I'm trying to use it with Paperclip, but I'm having some trouble. I have a model with:

has_attached_file :attachment

And I'd like to be able to include :attachment in my acts_as_api template (template.add :attachment)

Attempting to do so like that gives me the following error:

SystemStackError (stack level too deep):
app/controllers/rooms_controller.rb:34:in show' app/controllers/rooms_controller.rb:32:inshow'

Rendered /Library/Ruby/Gems/1.8/gems/actionpack-3.1.0/lib/action_dispatch/middleware/templates/rescues/_trace.erb (134.8ms)
Rendered /Library/Ruby/Gems/1.8/gems/actionpack-3.1.0/lib/action_dispatch/middleware/templates/rescues/_request_and_response.erb (1.3ms)
Rendered /Library/Ruby/Gems/1.8/gems/actionpack-3.1.0/lib/action_dispatch/middleware/templates/rescues/diagnostics.erb within rescues/layout (154.1ms)

So clearly just adding :attachment to the template and hoping it'll magically work didn't pan out! Any ideas/suggestions for how I might tackle this? With paperclip, I can access different sizes of an uploaded image, for example, using something like @message.attachment(:large) (where @message is an object with has_attached_file and :large is one of the Paperclip-resized versions of the image).

Thanks!

[fabrik42]

Hi,

you can not simply add the :attachment attribute to the template, because it is a Paperclip::Attachment object and neither acts_as_api nor the Rails renderers know how to resolve it when rendering the response.

You could do something like

t.add lambda{|model| model.attachment(:large) }, :as => :attachment

Or if you want to return all of the sizes, just create a helper method in your model that constructs a Hash:

  def all_avatar_urls
    avatars = {}
    avatars[:small]   = avatar.url(:small)
    avatars[:medium]  = avatar.url(:medium)
    avatars[:large]   = avatar.url(:large)
    avatars
  end

and add it to the template:

t.add :all_avatar_urls

Hope this helps. :)
I'm closing the issue now, but let me know if you need further assistance.

Best,

Chris

edit:
Sorry the first example of the helper method used our privacy gem https://github.com/flinc/concealer

[adampash]

Thanks so much, Christian—that absolutely works. Really appreciate the help!

Best,
Adam

2011/12/1 Christian Bäuerlein <
reply@reply.github.com

Hi,

you can not simply add the :attachment attribute to the template, because
it is a Paperclip::Attachment object and neither acts_as_api nor the
Rails renderers know how to resolve it when rendering the response.

You could do something like

t.add lamda{|model| model.attachment(:large) }, :as => :attachment

Or if you want to return all of the sizes, just create a helper method in
your model that constructs a Hash:

 def all_avatar_urls
   avatars = {}
   avatars[:small]   = concealed.avatar.url(:small)
   avatars[:medium]  = concealed.avatar.url(:medium)
   avatars[:large]   = concealed.avatar.url(:large)
   avatars
 end

and add it to the template:

t.add :all_avatar_urls

Hope this helps. :)
I'm closing the issue now, but let me know if you need further assistance.

Best,

Chris

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#47 (comment)

[esbanarango]

I had the same problem and Google brought me here...
it also works for me, thanks too!.

[fabrik42]

You're welcome :)
Maybe I should extract the relevant content from this ticket into a wiki article....