565 lines
22 KiB
JavaScript
565 lines
22 KiB
JavaScript
/**
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* @license AngularJS v1.2.5
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* (c) 2010-2014 Google, Inc. http://angularjs.org
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* License: MIT
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*/
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(function(window, angular, undefined) {'use strict';
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var $resourceMinErr = angular.$$minErr('$resource');
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// Helper functions and regex to lookup a dotted path on an object
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// stopping at undefined/null. The path must be composed of ASCII
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// identifiers (just like $parse)
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var MEMBER_NAME_REGEX = /^(\.[a-zA-Z_$][0-9a-zA-Z_$]*)+$/;
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function isValidDottedPath(path) {
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return (path != null && path !== '' && path !== 'hasOwnProperty' &&
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MEMBER_NAME_REGEX.test('.' + path));
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}
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function lookupDottedPath(obj, path) {
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if (!isValidDottedPath(path)) {
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throw $resourceMinErr('badmember', 'Dotted member path "@{0}" is invalid.', path);
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}
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var keys = path.split('.');
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for (var i = 0, ii = keys.length; i < ii && obj !== undefined; i++) {
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var key = keys[i];
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obj = (obj !== null) ? obj[key] : undefined;
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}
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return obj;
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}
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/**
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* Create a shallow copy of an object and clear other fields from the destination
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*/
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function shallowClearAndCopy(src, dst) {
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dst = dst || {};
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angular.forEach(dst, function(value, key){
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delete dst[key];
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});
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for (var key in src) {
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if (src.hasOwnProperty(key) && key.substr(0, 2) !== '$$') {
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dst[key] = src[key];
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}
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}
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return dst;
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}
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/**
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* @ngdoc overview
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* @name ngResource
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* @description
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*
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* # ngResource
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*
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* The `ngResource` module provides interaction support with RESTful services
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* via the $resource service.
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*
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* {@installModule resource}
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*
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* <div doc-module-components="ngResource"></div>
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*
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* See {@link ngResource.$resource `$resource`} for usage.
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*/
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/**
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* @ngdoc object
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* @name ngResource.$resource
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* @requires $http
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*
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* @description
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* A factory which creates a resource object that lets you interact with
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* [RESTful](http://en.wikipedia.org/wiki/Representational_State_Transfer) server-side data sources.
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*
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* The returned resource object has action methods which provide high-level behaviors without
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* the need to interact with the low level {@link ng.$http $http} service.
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*
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* Requires the {@link ngResource `ngResource`} module to be installed.
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*
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* @param {string} url A parametrized URL template with parameters prefixed by `:` as in
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* `/user/:username`. If you are using a URL with a port number (e.g.
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* `http://example.com:8080/api`), it will be respected.
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*
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* If you are using a url with a suffix, just add the suffix, like this:
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* `$resource('http://example.com/resource.json')` or `$resource('http://example.com/:id.json')`
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* or even `$resource('http://example.com/resource/:resource_id.:format')`
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* If the parameter before the suffix is empty, :resource_id in this case, then the `/.` will be
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* collapsed down to a single `.`. If you need this sequence to appear and not collapse then you
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* can escape it with `/\.`.
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*
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* @param {Object=} paramDefaults Default values for `url` parameters. These can be overridden in
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* `actions` methods. If any of the parameter value is a function, it will be executed every time
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* when a param value needs to be obtained for a request (unless the param was overridden).
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*
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* Each key value in the parameter object is first bound to url template if present and then any
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* excess keys are appended to the url search query after the `?`.
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*
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* Given a template `/path/:verb` and parameter `{verb:'greet', salutation:'Hello'}` results in
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* URL `/path/greet?salutation=Hello`.
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*
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* If the parameter value is prefixed with `@` then the value of that parameter is extracted from
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* the data object (useful for non-GET operations).
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*
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* @param {Object.<Object>=} actions Hash with declaration of custom action that should extend the
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* default set of resource actions. The declaration should be created in the format of {@link
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* ng.$http#usage_parameters $http.config}:
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*
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* {action1: {method:?, params:?, isArray:?, headers:?, ...},
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* action2: {method:?, params:?, isArray:?, headers:?, ...},
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* ...}
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*
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* Where:
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*
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* - **`action`** – {string} – The name of action. This name becomes the name of the method on
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* your resource object.
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* - **`method`** – {string} – HTTP request method. Valid methods are: `GET`, `POST`, `PUT`,
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* `DELETE`, and `JSONP`.
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* - **`params`** – {Object=} – Optional set of pre-bound parameters for this action. If any of
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* the parameter value is a function, it will be executed every time when a param value needs to
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* be obtained for a request (unless the param was overridden).
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* - **`url`** – {string} – action specific `url` override. The url templating is supported just
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* like for the resource-level urls.
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* - **`isArray`** – {boolean=} – If true then the returned object for this action is an array,
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* see `returns` section.
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* - **`transformRequest`** –
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* `{function(data, headersGetter)|Array.<function(data, headersGetter)>}` –
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* transform function or an array of such functions. The transform function takes the http
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* request body and headers and returns its transformed (typically serialized) version.
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* - **`transformResponse`** –
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* `{function(data, headersGetter)|Array.<function(data, headersGetter)>}` –
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* transform function or an array of such functions. The transform function takes the http
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* response body and headers and returns its transformed (typically deserialized) version.
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* - **`cache`** – `{boolean|Cache}` – If true, a default $http cache will be used to cache the
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* GET request, otherwise if a cache instance built with
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* {@link ng.$cacheFactory $cacheFactory}, this cache will be used for
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* caching.
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* - **`timeout`** – `{number|Promise}` – timeout in milliseconds, or {@link ng.$q promise} that
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* should abort the request when resolved.
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* - **`withCredentials`** - `{boolean}` - whether to set the `withCredentials` flag on the
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* XHR object. See {@link https://developer.mozilla.org/en/http_access_control#section_5
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* requests with credentials} for more information.
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* - **`responseType`** - `{string}` - see {@link
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* https://developer.mozilla.org/en-US/docs/DOM/XMLHttpRequest#responseType requestType}.
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* - **`interceptor`** - `{Object=}` - The interceptor object has two optional methods -
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* `response` and `responseError`. Both `response` and `responseError` interceptors get called
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* with `http response` object. See {@link ng.$http $http interceptors}.
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*
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* @returns {Object} A resource "class" object with methods for the default set of resource actions
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* optionally extended with custom `actions`. The default set contains these actions:
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*
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* { 'get': {method:'GET'},
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* 'save': {method:'POST'},
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* 'query': {method:'GET', isArray:true},
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* 'remove': {method:'DELETE'},
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* 'delete': {method:'DELETE'} };
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*
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* Calling these methods invoke an {@link ng.$http} with the specified http method,
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* destination and parameters. When the data is returned from the server then the object is an
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* instance of the resource class. The actions `save`, `remove` and `delete` are available on it
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* as methods with the `$` prefix. This allows you to easily perform CRUD operations (create,
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* read, update, delete) on server-side data like this:
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* <pre>
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var User = $resource('/user/:userId', {userId:'@id'});
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var user = User.get({userId:123}, function() {
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user.abc = true;
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user.$save();
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});
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</pre>
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*
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* It is important to realize that invoking a $resource object method immediately returns an
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* empty reference (object or array depending on `isArray`). Once the data is returned from the
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* server the existing reference is populated with the actual data. This is a useful trick since
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* usually the resource is assigned to a model which is then rendered by the view. Having an empty
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* object results in no rendering, once the data arrives from the server then the object is
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* populated with the data and the view automatically re-renders itself showing the new data. This
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* means that in most cases one never has to write a callback function for the action methods.
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*
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* The action methods on the class object or instance object can be invoked with the following
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* parameters:
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*
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* - HTTP GET "class" actions: `Resource.action([parameters], [success], [error])`
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* - non-GET "class" actions: `Resource.action([parameters], postData, [success], [error])`
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* - non-GET instance actions: `instance.$action([parameters], [success], [error])`
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*
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* Success callback is called with (value, responseHeaders) arguments. Error callback is called
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* with (httpResponse) argument.
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*
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* Class actions return empty instance (with additional properties below).
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* Instance actions return promise of the action.
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*
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* The Resource instances and collection have these additional properties:
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*
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* - `$promise`: the {@link ng.$q promise} of the original server interaction that created this
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* instance or collection.
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*
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* On success, the promise is resolved with the same resource instance or collection object,
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* updated with data from server. This makes it easy to use in
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* {@link ngRoute.$routeProvider resolve section of $routeProvider.when()} to defer view
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* rendering until the resource(s) are loaded.
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*
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* On failure, the promise is resolved with the {@link ng.$http http response} object, without
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* the `resource` property.
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*
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* - `$resolved`: `true` after first server interaction is completed (either with success or
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* rejection), `false` before that. Knowing if the Resource has been resolved is useful in
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* data-binding.
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*
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* @example
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*
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* # Credit card resource
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*
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* <pre>
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// Define CreditCard class
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var CreditCard = $resource('/user/:userId/card/:cardId',
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{userId:123, cardId:'@id'}, {
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charge: {method:'POST', params:{charge:true}}
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});
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// We can retrieve a collection from the server
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var cards = CreditCard.query(function() {
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// GET: /user/123/card
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// server returns: [ {id:456, number:'1234', name:'Smith'} ];
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var card = cards[0];
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// each item is an instance of CreditCard
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expect(card instanceof CreditCard).toEqual(true);
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card.name = "J. Smith";
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// non GET methods are mapped onto the instances
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card.$save();
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// POST: /user/123/card/456 {id:456, number:'1234', name:'J. Smith'}
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// server returns: {id:456, number:'1234', name: 'J. Smith'};
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// our custom method is mapped as well.
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card.$charge({amount:9.99});
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// POST: /user/123/card/456?amount=9.99&charge=true {id:456, number:'1234', name:'J. Smith'}
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});
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// we can create an instance as well
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var newCard = new CreditCard({number:'0123'});
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newCard.name = "Mike Smith";
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newCard.$save();
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// POST: /user/123/card {number:'0123', name:'Mike Smith'}
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// server returns: {id:789, number:'01234', name: 'Mike Smith'};
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expect(newCard.id).toEqual(789);
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* </pre>
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*
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* The object returned from this function execution is a resource "class" which has "static" method
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* for each action in the definition.
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*
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* Calling these methods invoke `$http` on the `url` template with the given `method`, `params` and
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* `headers`.
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* When the data is returned from the server then the object is an instance of the resource type and
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* all of the non-GET methods are available with `$` prefix. This allows you to easily support CRUD
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* operations (create, read, update, delete) on server-side data.
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<pre>
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var User = $resource('/user/:userId', {userId:'@id'});
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var user = User.get({userId:123}, function() {
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user.abc = true;
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user.$save();
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});
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</pre>
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*
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* It's worth noting that the success callback for `get`, `query` and other methods gets passed
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* in the response that came from the server as well as $http header getter function, so one
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* could rewrite the above example and get access to http headers as:
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*
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<pre>
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var User = $resource('/user/:userId', {userId:'@id'});
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User.get({userId:123}, function(u, getResponseHeaders){
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u.abc = true;
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u.$save(function(u, putResponseHeaders) {
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//u => saved user object
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//putResponseHeaders => $http header getter
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});
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});
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</pre>
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*/
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angular.module('ngResource', ['ng']).
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factory('$resource', ['$http', '$q', function($http, $q) {
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var DEFAULT_ACTIONS = {
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'get': {method:'GET'},
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'save': {method:'POST'},
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'query': {method:'GET', isArray:true},
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'remove': {method:'DELETE'},
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'delete': {method:'DELETE'}
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};
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var noop = angular.noop,
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forEach = angular.forEach,
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extend = angular.extend,
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copy = angular.copy,
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isFunction = angular.isFunction;
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/**
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* We need our custom method because encodeURIComponent is too aggressive and doesn't follow
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* http://www.ietf.org/rfc/rfc3986.txt with regards to the character set (pchar) allowed in path
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* segments:
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* segment = *pchar
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* pchar = unreserved / pct-encoded / sub-delims / ":" / "@"
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* pct-encoded = "%" HEXDIG HEXDIG
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* unreserved = ALPHA / DIGIT / "-" / "." / "_" / "~"
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* sub-delims = "!" / "$" / "&" / "'" / "(" / ")"
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* / "*" / "+" / "," / ";" / "="
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*/
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function encodeUriSegment(val) {
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return encodeUriQuery(val, true).
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replace(/%26/gi, '&').
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replace(/%3D/gi, '=').
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replace(/%2B/gi, '+');
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}
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/**
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* This method is intended for encoding *key* or *value* parts of query component. We need a
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* custom method because encodeURIComponent is too aggressive and encodes stuff that doesn't
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* have to be encoded per http://tools.ietf.org/html/rfc3986:
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* query = *( pchar / "/" / "?" )
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* pchar = unreserved / pct-encoded / sub-delims / ":" / "@"
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* unreserved = ALPHA / DIGIT / "-" / "." / "_" / "~"
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* pct-encoded = "%" HEXDIG HEXDIG
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* sub-delims = "!" / "$" / "&" / "'" / "(" / ")"
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* / "*" / "+" / "," / ";" / "="
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*/
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function encodeUriQuery(val, pctEncodeSpaces) {
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return encodeURIComponent(val).
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replace(/%40/gi, '@').
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replace(/%3A/gi, ':').
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replace(/%24/g, '$').
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replace(/%2C/gi, ',').
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replace(/%20/g, (pctEncodeSpaces ? '%20' : '+'));
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}
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function Route(template, defaults) {
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this.template = template;
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this.defaults = defaults || {};
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this.urlParams = {};
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}
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Route.prototype = {
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setUrlParams: function(config, params, actionUrl) {
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var self = this,
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url = actionUrl || self.template,
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val,
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encodedVal;
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var urlParams = self.urlParams = {};
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forEach(url.split(/\W/), function(param){
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if (param === 'hasOwnProperty') {
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throw $resourceMinErr('badname', "hasOwnProperty is not a valid parameter name.");
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}
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if (!(new RegExp("^\\d+$").test(param)) && param &&
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(new RegExp("(^|[^\\\\]):" + param + "(\\W|$)").test(url))) {
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urlParams[param] = true;
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}
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});
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url = url.replace(/\\:/g, ':');
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params = params || {};
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forEach(self.urlParams, function(_, urlParam){
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val = params.hasOwnProperty(urlParam) ? params[urlParam] : self.defaults[urlParam];
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if (angular.isDefined(val) && val !== null) {
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encodedVal = encodeUriSegment(val);
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url = url.replace(new RegExp(":" + urlParam + "(\\W|$)", "g"), encodedVal + "$1");
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} else {
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url = url.replace(new RegExp("(\/?):" + urlParam + "(\\W|$)", "g"), function(match,
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leadingSlashes, tail) {
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if (tail.charAt(0) == '/') {
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return tail;
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} else {
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return leadingSlashes + tail;
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}
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});
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}
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});
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// strip trailing slashes and set the url
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url = url.replace(/\/+$/, '');
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// then replace collapse `/.` if found in the last URL path segment before the query
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// E.g. `http://url.com/id./format?q=x` becomes `http://url.com/id.format?q=x`
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url = url.replace(/\/\.(?=\w+($|\?))/, '.');
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// replace escaped `/\.` with `/.`
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config.url = url.replace(/\/\\\./, '/.');
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// set params - delegate param encoding to $http
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forEach(params, function(value, key){
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if (!self.urlParams[key]) {
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config.params = config.params || {};
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config.params[key] = value;
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}
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});
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}
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};
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function resourceFactory(url, paramDefaults, actions) {
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var route = new Route(url);
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actions = extend({}, DEFAULT_ACTIONS, actions);
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function extractParams(data, actionParams){
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var ids = {};
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actionParams = extend({}, paramDefaults, actionParams);
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forEach(actionParams, function(value, key){
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if (isFunction(value)) { value = value(); }
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ids[key] = value && value.charAt && value.charAt(0) == '@' ?
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lookupDottedPath(data, value.substr(1)) : value;
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});
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return ids;
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}
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function defaultResponseInterceptor(response) {
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return response.resource;
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}
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function Resource(value){
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shallowClearAndCopy(value || {}, this);
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}
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forEach(actions, function(action, name) {
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var hasBody = /^(POST|PUT|PATCH)$/i.test(action.method);
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Resource[name] = function(a1, a2, a3, a4) {
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var params = {}, data, success, error;
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/* jshint -W086 */ /* (purposefully fall through case statements) */
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switch(arguments.length) {
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case 4:
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error = a4;
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success = a3;
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//fallthrough
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case 3:
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case 2:
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if (isFunction(a2)) {
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if (isFunction(a1)) {
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success = a1;
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error = a2;
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break;
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}
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success = a2;
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error = a3;
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//fallthrough
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} else {
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params = a1;
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data = a2;
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success = a3;
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break;
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}
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case 1:
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if (isFunction(a1)) success = a1;
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else if (hasBody) data = a1;
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else params = a1;
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break;
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case 0: break;
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default:
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throw $resourceMinErr('badargs',
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"Expected up to 4 arguments [params, data, success, error], got {0} arguments",
|
||
arguments.length);
|
||
}
|
||
/* jshint +W086 */ /* (purposefully fall through case statements) */
|
||
|
||
var isInstanceCall = this instanceof Resource;
|
||
var value = isInstanceCall ? data : (action.isArray ? [] : new Resource(data));
|
||
var httpConfig = {};
|
||
var responseInterceptor = action.interceptor && action.interceptor.response ||
|
||
defaultResponseInterceptor;
|
||
var responseErrorInterceptor = action.interceptor && action.interceptor.responseError ||
|
||
undefined;
|
||
|
||
forEach(action, function(value, key) {
|
||
if (key != 'params' && key != 'isArray' && key != 'interceptor') {
|
||
httpConfig[key] = copy(value);
|
||
}
|
||
});
|
||
|
||
if (hasBody) httpConfig.data = data;
|
||
route.setUrlParams(httpConfig,
|
||
extend({}, extractParams(data, action.params || {}), params),
|
||
action.url);
|
||
|
||
var promise = $http(httpConfig).then(function(response) {
|
||
var data = response.data,
|
||
promise = value.$promise;
|
||
|
||
if (data) {
|
||
// Need to convert action.isArray to boolean in case it is undefined
|
||
// jshint -W018
|
||
if (angular.isArray(data) !== (!!action.isArray)) {
|
||
throw $resourceMinErr('badcfg', 'Error in resource configuration. Expected ' +
|
||
'response to contain an {0} but got an {1}',
|
||
action.isArray?'array':'object', angular.isArray(data)?'array':'object');
|
||
}
|
||
// jshint +W018
|
||
if (action.isArray) {
|
||
value.length = 0;
|
||
forEach(data, function(item) {
|
||
value.push(new Resource(item));
|
||
});
|
||
} else {
|
||
shallowClearAndCopy(data, value);
|
||
value.$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;
|
||
}]);
|
||
|
||
|
||
})(window, window.angular);
|