Def to param with Active Admin

Question

I use:

def to_param
    user_name
end

and in my active admin user.rb

ActiveAdmin.register User do
  index do
      column :id
      column :email
      column :user_name
      column :created_at
      default_actions
  end
end

That of course gives me an Couldn't find User with id=testuser

How can i specify to Active Admin to use this properly ?

Edit 1: With the answer below it works but def to param get's overwritten on all the app..

http://stackoverflow.com/questions/7684644/activerecordreadonlyrecord-when-using-activeadmin-and-friendly-id — usha, Oct 15 '13 at 19:32

score 2 · Accepted Answer · answered Oct 17 '13 at 17:15

2

This will do the job in the app/admin/user.rb :

ActiveAdmin.register User do
  before_filter :only => [:show, :edit, :update, :destroy] do
    @user = User.find_by_name(params[:id])
  end
end

answered Oct 17 '13 at 17:15

Mini John

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score 2 · Answer 2 · answered Mar 02 '15 at 16:43

2

You want to override the default finder:

controller do
  defaults :finder => :find_by_user_name
end

answered Mar 02 '15 at 16:43

Daniel Magliola

30,898
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this is best answer indeed – Asnad Atta Feb 14 '17 at 10:03

score 1 · Answer 3 · edited May 23 '17 at 11:53

1

Override the to_param implementation for ActiveAdmin

ActiveAdmin.register Foobar do
  before_filter do
    Foobar.class_eval do
      def to_param
        id.to_s
      end
    end
  end
end

Refer to this SO post for more info/alternate solution related to this topic

edited May 23 '17 at 11:53

Community

1
1

answered Oct 15 '13 at 19:46

usha

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1

Hey vimsha, although it works with Active Admin, INAPP all def to params are overwritten to :id and nothing works... Is there a viable Solution to this ? – Mini John Oct 17 '13 at 16:55

Def to param with Active Admin

3 Answers3