Angular $resource and transformResponse

resource.js

angular.module('itemServices', ['ngResource'])
  .factory('Item', ['$resource',
    function ($resource) {
      return $resource('items/:id',
        {id: '@id'},
        {
          query: {
            isArray: true,
            method: 'GET',
            params: {},
            transformResponse: function (data) {
              var wrapped = angular.fromJson(data);
                //If contains exceptions, it doesn't contains data and and only errors, and normally should return directly without modification
                if (!wrapped.ExceptionType && !wrapped.ExceptionMessage) {
                  return wrapped.body.rows
                }
              return wrapped;
            }
          },
          get: {method: 'GET', params: {id: '@id'}},
          save: {method: 'POST'},
          update: {method: 'PUT', params: {id: '@id'}},
          delete: { method: 'DELETE', params: {} }
        });
    }]);