No way to specify primary key

[MikeAbner]

Don't see how to set the primary key column. I have UUID as the primary key of a few tables.

[gregbell]

You should be able to implement this using the to_param and using a before filter in the resource.

I haven't actually tested this, so let me know if this works... But it should look something like this.

class Post < ActiveRecord::Base
  def to_param
    uuid
  end
end

ActiveAdmin.register Post do

  before_filter :only => [:show, :edit, :update] do
    @post = Post.find_by_uuid(@post)
  end

end

Active Admin should use the @post variable instead of looking it up if you have already defined it.

Again, I haven't had a chance to test this out, but we use this method for show screens in our app. I'm assuming it will work for the edit and update.

Let me know how it goes.

[jeffrafter]

Actually this should read:

before_filter :only => [:show, :edit, :update] do
   @post = Post.find_by_uuid!(params[:id])
end

Adding the ! gives you the nice 404 behavior, and @post is not defined at this point, params[:id] is.

[gregbell]

@malyk did this work for you?

[MikeAbner]

Greg

I actually never tried it. Got caught up on other things. If I do give it another go (which I do want to do when time permits) I'll let you know. Thanks for looking into it.

[gregbell]

Cool. Thanks @malyk

[sbeam]

I found a way to do this that leverages i_r's :finder option on the controller. I am using stringex and have a slug column on the Model. So

ActiveAdmin.register Category do
    controller do
        defaults :finder => :find_by_slug
    end
end

[makvool]

thanks @sbeam, worked like a charm

[mitchwd]

Thanks @sbeam. Was looking for a while!