ActiveAdmin filter users by role

Question

I'd like to be able to filter devise users in active admin so that I can show a list of users, then filter those users by what role they have.

What I have is:

class User < ActiveRecord::Base
  has_many :user_permissions
  has_many :roles, :through => :user_permissions

class Role < ActiveRecord::Base
  has_many :user_permissions
  has_many :users, :through => :user_permissions

class UserPermission < ActiveRecord::Base
  belongs_to :user, :dependent => :destroy
  belongs_to :role

Then the filter is:

ActiveAdmin.register User do
  filter :roles, as: :select, collection: proc { Role.all }

But what I get is this error:

    undefined method `role_ids_eq' for #<MetaSearch::Searches::User:0x0000012a2f7170>

Answer 1

I don't know about active admin working of filters but if you are talking about queries filter then this will work-

User.where(:role => 'admin')

Note: The above query will give all the users with the role admin .

As mentioned, Rails 3 introduces a new query interface for performing finds in Active Record.

http://railscasts.com/episodes/202-active-record-queries-in-rails-3

Answer 2

try something like:

ActiveAdmin.register User do
  filter :user_roles, as: :select, collection: proc { Role.all }

if the relationship is okay that should work