集合方法

• getList([queryParams, headers]): Gets itself again (Remember this is a collection).
• get([id]): Gets one item from the collection by id.
• post(elementToPost, [queryParams, headers]): Creates a new element of this collection.
• head([queryParams, headers]): Does a HEAD
• trace: ([queryParams, headers]): Does a TRACE
• options: ([queryParams, headers]): Does a OPTIONS
• patch(object, [queryParams, headers]): Does a PATCH
• remove([queryParams, headers]): Does a DELETE. By default, remove sends a request with an empty object, which may cause problems with some servers or browsers. This shows how to configure RESTangular to have no payload.
• putElement(idx, params, headers): Puts the element on the required index and returns a promise of the updated new array
• getRestangularUrl(): Gets the URL of the current object.
• getRequestedUrl(): Gets the real URL the current object was requested with (incl. GET parameters). Will equal getRestangularUrl() when no parameters were used, before calling getList(), or when using on a nested child.
• one(route, id): Used for RequestLess connections and URL Building. See section below.
• all(route): Used for RequestLess connections and URL Building. See section below.
• several(route, ids*): Used for RequestLess connections and URL Building. See section below.
• oneUrl(route, url): This will create a new Restangular object that is just a pointer to one element with the specified URL.
• allUrl(route, url): This creates a Restangular object that is just a pointer to a list at the specified URL.
• clone(): Copies the collection. It's an alias to calling Restangular.copy(collection).
• withHttpConfig(httpConfig): It lets you set a configuration for $http only for the next call. Check the Local Config HTTP section for an example.