CODEWITHSUNDEEP
ruby-on-railspapercliprails-admin
surendar
surendar

Reputation: 656

Rails 4: Paperclip and rails_admin "undefined method `attachment_definitions' error"

I am using rails_admin and paperclip but installing rails_admin with a model having paperclip attributes has_attached_file throws an error

undefined method `attachment_definitions'

I am using Rails 4 and rails_admin at master git branch and protected attributes gem.

Upvotes: 7

Views: 4397

Answers (3)

danijel
danijel

Reputation: 576

The problem might be that has_attached_file declaration is missing in your model. However this is a bug in rails_admin (in paperclip factory). I submitted the pull request here: https://github.com/sferik/rails_admin/pull/2410

Until then, you can use rails_admin from this branch: https://github.com/drap-hr/rails_admin/tree/v0.7.0-fixes (which is 0.7.0 version with paperclip factory fixed)

Upvotes: 1

Tyrel Richey
Tyrel Richey

Reputation: 867

I am on rails 3 still but ran into the same issue. I am fairly certain its an issue with the latest paperclip and rails_admin. I backed paperclip down to paperclip (3.4.2) and everything works.

Another thing of note I am using ruby 1.9.3

So for the newer rails guys/galls

In your gem file

gem "paperclip", "3.4.2"

then bundle update

not sure if other versions will work but I know that one does

Upvotes: 8

Tyler Kasten
Tyler Kasten

Reputation: 243

Are you properly calling has_attached_file in the model itself?

I had ruby (1.9.3), Rails (4.0.1), paperclip (3.5.2) and rails_admin (0.5.0) working without error. Then I created a new model. It had all the usual paperclip columns and should have worked. But I got that same error message.

My problem (duh) was that I neglected to configure paperclip in the model itself, but had the paperclip columns in my schema. I wasn't calling has_attached_file ... in my model. 

has_attached_file :img...

I loosely recall that rails_admin sniffs certain paperclip smelling columns and acts on it. So I had the paperclip like columns, which rails_admin detected, but never called has_attaached_file resulting in the error. And that error makes sense, there were indeed no "attachment_definitions" to speak of!

Upvotes: 3

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