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share/status/app/lib/angular/angular-resource.js  view on Meta::CPAN

 *     with `http response` object. See {@link ng.$http $http interceptors}.
 *
 * @returns {Object} A resource "class" object with methods for the default set of resource actions
 *   optionally extended with custom `actions`. The default set contains these actions:
 *
 *       { 'get':    {method:'GET'},
 *         'save':   {method:'POST'},
 *         'query':  {method:'GET', isArray:true},
 *         'remove': {method:'DELETE'},
 *         'delete': {method:'DELETE'} };
 *
 *   Calling these methods invoke an {@link ng.$http} with the specified http method,
 *   destination and parameters. When the data is returned from the server then the object is an
 *   instance of the resource class. The actions `save`, `remove` and `delete` are available on it
 *   as  methods with the `$` prefix. This allows you to easily perform CRUD operations (create,
 *   read, update, delete) on server-side data like this:
 *   <pre>
        var User = $resource('/user/:userId', {userId:'@id'});
        var user = User.get({userId:123}, function() {
          user.abc = true;
          user.$save();
        });
     </pre>
 *
 *   It is important to realize that invoking a $resource object method immediately returns an
 *   empty reference (object or array depending on `isArray`). Once the data is returned from the
 *   server the existing reference is populated with the actual data. This is a useful trick since
 *   usually the resource is assigned to a model which is then rendered by the view. Having an empty
 *   object results in no rendering, once the data arrives from the server then the object is
 *   populated with the data and the view automatically re-renders itself showing the new data. This
 *   means that in most cases one never has to write a callback function for the action methods.
 *
 *   The action methods on the class object or instance object can be invoked with the following
 *   parameters:
 *
 *   - HTTP GET "class" actions: `Resource.action([parameters], [success], [error])`
 *   - non-GET "class" actions: `Resource.action([parameters], postData, [success], [error])`
 *   - non-GET instance actions:  `instance.$action([parameters], [success], [error])`
 *
 *   Success callback is called with (value, responseHeaders) arguments. Error callback is called
 *   with (httpResponse) argument.
 *
 *   Class actions return empty instance (with additional properties below).
 *   Instance actions return promise of the action.
 *
 *   The Resource instances and collection have these additional properties:
 *
 *   - `$promise`: the {@link ng.$q promise} of the original server interaction that created this
 *     instance or collection.
 *
 *     On success, the promise is resolved with the same resource instance or collection object,
 *     updated with data from server. This makes it easy to use in
 *     {@link ngRoute.$routeProvider resolve section of $routeProvider.when()} to defer view
 *     rendering until the resource(s) are loaded.
 *
 *     On failure, the promise is resolved with the {@link ng.$http http response} object, without
 *     the `resource` property.
 *
 *   - `$resolved`: `true` after first server interaction is completed (either with success or
 *      rejection), `false` before that. Knowing if the Resource has been resolved is useful in
 *      data-binding.
 *
 * @example
 *
 * # Credit card resource
 *
 * <pre>
     // Define CreditCard class
     var CreditCard = $resource('/user/:userId/card/:cardId',
      {userId:123, cardId:'@id'}, {
       charge: {method:'POST', params:{charge:true}}
      });

     // We can retrieve a collection from the server
     var cards = CreditCard.query(function() {
       // GET: /user/123/card
       // server returns: [ {id:456, number:'1234', name:'Smith'} ];

       var card = cards[0];
       // each item is an instance of CreditCard
       expect(card instanceof CreditCard).toEqual(true);
       card.name = "J. Smith";
       // non GET methods are mapped onto the instances
       card.$save();
       // POST: /user/123/card/456 {id:456, number:'1234', name:'J. Smith'}
       // server returns: {id:456, number:'1234', name: 'J. Smith'};

       // our custom method is mapped as well.
       card.$charge({amount:9.99});
       // POST: /user/123/card/456?amount=9.99&charge=true {id:456, number:'1234', name:'J. Smith'}
     });

     // we can create an instance as well
     var newCard = new CreditCard({number:'0123'});
     newCard.name = "Mike Smith";
     newCard.$save();
     // POST: /user/123/card {number:'0123', name:'Mike Smith'}
     // server returns: {id:789, number:'0123', name: 'Mike Smith'};
     expect(newCard.id).toEqual(789);
 * </pre>
 *
 * The object returned from this function execution is a resource "class" which has "static" method
 * for each action in the definition.
 *
 * Calling these methods invoke `$http` on the `url` template with the given `method`, `params` and
 * `headers`.
 * When the data is returned from the server then the object is an instance of the resource type and
 * all of the non-GET methods are available with `$` prefix. This allows you to easily support CRUD
 * operations (create, read, update, delete) on server-side data.

   <pre>
     var User = $resource('/user/:userId', {userId:'@id'});
     var user = User.get({userId:123}, function() {
       user.abc = true;
       user.$save();
     });
   </pre>
 *
 * It's worth noting that the success callback for `get`, `query` and other methods gets passed
 * in the response that came from the server as well as $http header getter function, so one
 * could rewrite the above example and get access to http headers as:

share/status/app/lib/angular/angular-resource.js  view on Meta::CPAN

                  'response to contain an {0} but got an {1}',
                  action.isArray?'array':'object', angular.isArray(data)?'array':'object');
              }
              // jshint +W018
              if (action.isArray) {
                value.length = 0;
                forEach(data, function(item) {
                  value.push(new Resource(item));
                });
              } else {
                shallowClearAndCopy(data, value);
                value.$promise = promise;
              }
            }

            value.$resolved = true;

            response.resource = value;

            return response;
          }, function(response) {
            value.$resolved = true;

            (error||noop)(response);

            return $q.reject(response);
          });

          promise = promise.then(
              function(response) {
                var value = responseInterceptor(response);
                (success||noop)(value, response.headers);
                return value;
              },
              responseErrorInterceptor);

          if (!isInstanceCall) {
            // we are creating instance / collection
            // - set the initial promise
            // - return the instance / collection
            value.$promise = promise;
            value.$resolved = false;

            return value;
          }

          // instance call
          return promise;
        };


        Resource.prototype['$' + name] = function(params, success, error) {
          if (isFunction(params)) {
            error = success; success = params; params = {};
          }
          var result = Resource[name].call(this, params, this, success, error);
          return result.$promise || result;
        };
      });

      Resource.bind = function(additionalParamDefaults){
        return resourceFactory(url, extend({}, paramDefaults, additionalParamDefaults), actions);
      };

      return Resource;
    }

    return resourceFactory;
  }]);


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