Different endpoints for different actions; dynamic endpoints

Hi. For example, I have User model with endpoint /users/, and Group model with endpoint /groups/. User have m2m relation with Group. Request for fetching associated groups looks like /users/:id/groups. Question: how to change Group endpoint just for particular GET request?

[VenkatRamReddyK]

Feel free to Fork the Working Example: Plunker

Accessing // GET request:api/v1/users/4/settings/ui

(function(angular) {
  'use strict';

angular.module('xmpl', ['angular-data.DS'])
.service('User', function(DS) {
  return DS.defineResource({
    name: 'users', 
    endpoint:'api/v1/users',
    computed: {
          id:function(){return 4;}
        }
  });
})
.service('Usersettings', function(DS, User) {
  return DS.defineResource({
        name: 'settingsui',
        endpoint:'settings/ui',
        computed: {
          id:function(){return 4;}
        },
        relations: {
          belongsTo: {
            users: {
              parent: true,
              localKey: 'userId',
              localField: 'users'
            }
          }
        }
      });
})
  .run(function(Usersettings, User) {

    Usersettings.findAll({ userId: 4 }). // GET /users/4/settings/ui
      then(function (response) {
          console.log(response);
      }).catch(function (response) {
          console.log(response);
      });

  })
})(window.angular);

[demisx]

Yeah, I was following the example in this issue first and got that error. Switching to DSHttpAdapter.defaults.deserialize made it work.