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| author | Misko Hevery | 2012-03-23 14:03:24 -0700 |
|---|---|---|
| committer | Misko Hevery | 2012-03-28 11:16:35 -0700 |
| commit | 2430f52bb97fa9d682e5f028c977c5bf94c5ec38 (patch) | |
| tree | e7529b741d70199f36d52090b430510bad07f233 /src/service/resource.js | |
| parent | 944098a4e0f753f06b40c73ca3e79991cec6c2e2 (diff) | |
| download | angular.js-2430f52bb97fa9d682e5f028c977c5bf94c5ec38.tar.bz2 | |
chore(module): move files around in preparation for more modules
Diffstat (limited to 'src/service/resource.js')
| -rw-r--r-- | src/service/resource.js | 368 |
1 files changed, 0 insertions, 368 deletions
diff --git a/src/service/resource.js b/src/service/resource.js deleted file mode 100644 index 3aa48e74..00000000 --- a/src/service/resource.js +++ /dev/null @@ -1,368 +0,0 @@ -'use strict'; - -/** - * @ngdoc object - * @name angular.module.ng.$resource - * @requires $http - * - * @description - * A factory which creates a resource object that lets you interact with - * [RESTful](http://en.wikipedia.org/wiki/Representational_State_Transfer) server-side data sources. - * - * The returned resource object has action methods which provide high-level behaviors without - * the need to interact with the low level {@link angular.module.ng.$http $http} service. - * - * @param {string} url A parameterized URL template with parameters prefixed by `:` as in - * `/user/:username`. - * - * @param {Object=} paramDefaults Default values for `url` parameters. These can be overridden in - * `actions` methods. - * - * Each key value in the parameter object is first bound to url template if present and then any - * excess keys are appended to the url search query after the `?`. - * - * Given a template `/path/:verb` and parameter `{verb:'greet', salutation:'Hello'}` results in - * URL `/path/greet?salutation=Hello`. - * - * If the parameter value is prefixed with `@` then the value of that parameter is extracted from - * the data object (useful for non-GET operations). - * - * @param {Object.<Object>=} actions Hash with declaration of custom action that should extend the - * default set of resource actions. The declaration should be created in the following format: - * - * {action1: {method:?, params:?, isArray:?}, - * action2: {method:?, params:?, isArray:?}, - * ...} - * - * Where: - * - * - `action` – {string} – The name of action. This name becomes the name of the method on your - * resource object. - * - `method` – {string} – HTTP request method. Valid methods are: `GET`, `POST`, `PUT`, `DELETE`, - * and `JSONP` - * - `params` – {object=} – Optional set of pre-bound parameters for this action. - * - isArray – {boolean=} – If true then the returned object for this action is an array, see - * `returns` section. - * - * @returns {Object} A resource "class" object with methods for the default set of resource actions - * optionally extended with custom `actions`. The default set contains these actions: - * - * { 'get': {method:'GET'}, - * 'save': {method:'POST'}, - * 'query': {method:'GET', isArray:true}, - * 'remove': {method:'DELETE'}, - * 'delete': {method:'DELETE'} }; - * - * Calling these methods invoke an {@link angular.module.ng.$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 `save`, `remove` and `delete` actions 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 $resource object method immediately returns an - * empty reference (object or array depending on `isArray`). Once the data is returned from the - * server the existing reference is populated with the actual data. This is a useful trick since - * usually the resource is assigned to a model which is then rendered by the view. Having an empty - * object results in no rendering, once the data arrives from the server then the object is - * populated with the data and the view automatically re-renders itself showing the new data. This - * means that in most case one never has to write a callback function for the action methods. - * - * The action methods on the class object or instance object can be invoked with the following - * parameters: - * - * - HTTP GET "class" actions: `Resource.action([parameters], [success], [error])` - * - non-GET "class" actions: `Resource.action([parameters], postData, [success], [error])` - * - non-GET instance actions: `instance.$action([parameters], [success], [error])` - * - * - * @example - * - * # Credit card resource - * - * <pre> - // Define CreditCard class - var CreditCard = $resource('/user/:userId/card/:cardId', - {userId:123, cardId:'@id'}, { - charge: {method:'POST', params:{charge:true}} - }); - - // We can retrieve a collection from the server - var cards = CreditCard.query(); - // GET: /user/123/card - // server returns: [ {id:456, number:'1234', name:'Smith'} ]; - - var card = cards[0]; - // each item is an instance of CreditCard - expect(card instanceof CreditCard).toEqual(true); - card.name = "J. Smith"; - // non GET methods are mapped onto the instances - card.$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.$charge({amount:9.99}); - // POST: /user/123/card/456?amount=9.99&charge=true {id:456, number:'1234', name:'J. Smith'} - // server returns: {id:456, number:'1234', name: 'J. Smith'}; - - // we can create an instance as well - var newCard = new CreditCard({number:'0123'}); - newCard.name = "Mike Smith"; - newCard.$save(); - // POST: /user/123/card {number:'0123', name:'Mike Smith'} - // server returns: {id:789, number:'01234', 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 `$http` on the `url` template with the given `method` and `params`. - * When the data is returned from the server then the object is an instance of the resource type and - * all of the non-GET methods are available with `$` 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 method 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: - * - <pre> - var User = $resource('/user/:userId', {userId:'@id'}); - User.get({userId:123}, function(u, getResponseHeaders){ - u.abc = true; - u.$save(function(u, putResponseHeaders) { - //u => saved user object - //putResponseHeaders => $http header getter - }); - }); - </pre> - - * # Buzz client - - Let's look at what a buzz client created with the `$resource` service looks like: - <doc:example> - <doc:source jsfiddle="false"> - <script> - function BuzzController($resource) { - this.userId = 'googlebuzz'; - this.Activity = $resource( - 'https://www.googleapis.com/buzz/v1/activities/:userId/:visibility/:activityId/:comments', - {alt:'json', callback:'JSON_CALLBACK'}, - {get:{method:'JSONP', params:{visibility:'@self'}}, replies: {method:'JSONP', params:{visibility:'@self', comments:'@comments'}}} - ); - } - - BuzzController.prototype = { - fetch: function() { - this.activities = this.Activity.get({userId:this.userId}); - }, - expandReplies: function(activity) { - activity.replies = this.Activity.replies({userId:this.userId, activityId:activity.id}); - } - }; - BuzzController.$inject = ['$resource']; - </script> - - <div ng-controller="BuzzController"> - <input ng-model="userId"/> - <button ng-click="fetch()">fetch</button> - <hr/> - <div ng-repeat="item in activities.data.items"> - <h1 style="font-size: 15px;"> - <img src="{{item.actor.thumbnailUrl}}" style="max-height:30px;max-width:30px;"/> - <a href="{{item.actor.profileUrl}}">{{item.actor.name}}</a> - <a href ng-click="expandReplies(item)" style="float: right;">Expand replies: {{item.links.replies[0].count}}</a> - </h1> - {{item.object.content | html}} - <div ng-repeat="reply in item.replies.data.items" style="margin-left: 20px;"> - <img src="{{reply.actor.thumbnailUrl}}" style="max-height:30px;max-width:30px;"/> - <a href="{{reply.actor.profileUrl}}">{{reply.actor.name}}</a>: {{reply.content | html}} - </div> - </div> - </div> - </doc:source> - <doc:scenario> - </doc:scenario> - </doc:example> - */ -function $ResourceProvider() { - this.$get = ['$http', function($http) { - var DEFAULT_ACTIONS = { - 'get': {method:'GET'}, - 'save': {method:'POST'}, - 'query': {method:'GET', isArray:true}, - 'remove': {method:'DELETE'}, - 'delete': {method:'DELETE'} - }; - - - function Route(template, defaults) { - this.template = template = template + '#'; - this.defaults = defaults || {}; - var urlParams = this.urlParams = {}; - forEach(template.split(/\W/), function(param){ - if (param && template.match(new RegExp("[^\\\\]:" + param + "\\W"))) { - urlParams[param] = true; - } - }); - this.template = template.replace(/\\:/g, ':'); - } - - Route.prototype = { - url: function(params) { - var self = this, - url = this.template, - encodedVal; - - params = params || {}; - forEach(this.urlParams, function(_, urlParam){ - encodedVal = encodeUriSegment(params[urlParam] || self.defaults[urlParam] || ""); - url = url.replace(new RegExp(":" + urlParam + "(\\W)"), encodedVal + "$1"); - }); - url = url.replace(/\/?#$/, ''); - var query = []; - forEachSorted(params, function(value, key){ - if (!self.urlParams[key]) { - query.push(encodeUriQuery(key) + '=' + encodeUriQuery(value)); - } - }); - url = url.replace(/\/*$/, ''); - return url + (query.length ? '?' + query.join('&') : ''); - } - }; - - - function ResourceFactory(url, paramDefaults, actions) { - var route = new Route(url); - - actions = extend({}, DEFAULT_ACTIONS, actions); - - function extractParams(data){ - var ids = {}; - forEach(paramDefaults || {}, function(value, key){ - ids[key] = value.charAt && value.charAt(0) == '@' ? getter(data, value.substr(1)) : value; - }); - return ids; - } - - function Resource(value){ - copy(value || {}, this); - } - - forEach(actions, function(action, name) { - var isPostOrPut = action.method == 'POST' || action.method == 'PUT'; - Resource[name] = function(a1, a2, a3, a4) { - var params = {}; - var data; - var success = noop; - var error = null; - switch(arguments.length) { - case 4: - error = a4; - success = a3; - //fallthrough - case 3: - case 2: - if (isFunction(a2)) { - if (isFunction(a1)) { - success = a1; - error = a2; - break; - } - - success = a2; - error = a3; - //fallthrough - } else { - params = a1; - data = a2; - success = a3; - break; - } - case 1: - if (isFunction(a1)) success = a1; - else if (isPostOrPut) data = a1; - else params = a1; - break; - case 0: break; - default: - throw "Expected between 0-4 arguments [params, data, success, error], got " + - arguments.length + " arguments."; - } - - var value = this instanceof Resource ? this : (action.isArray ? [] : new Resource(data)); - $http({ - method: action.method, - url: route.url(extend({}, extractParams(data), action.params || {}, params)), - data: data - }).then(function(response) { - var data = response.data; - - if (data) { - if (action.isArray) { - value.length = 0; - forEach(data, function(item) { - value.push(new Resource(item)); - }); - } else { - copy(data, value); - } - } - (success||noop)(value, response.headers); - }, error); - - return value; - }; - - - Resource.bind = function(additionalParamDefaults){ - return ResourceFactory(url, extend({}, paramDefaults, additionalParamDefaults), actions); - }; - - - Resource.prototype['$' + name] = function(a1, a2, a3) { - var params = extractParams(this), - success = noop, - error; - - switch(arguments.length) { - case 3: params = a1; success = a2; error = a3; break; - case 2: - case 1: - if (isFunction(a1)) { - success = a1; - error = a2; - } else { - params = a1; - success = a2 || noop; - } - case 0: break; - default: - throw "Expected between 1-3 arguments [params, success, error], got " + - arguments.length + " arguments."; - } - var data = isPostOrPut ? this : undefined; - Resource[name].call(this, params, data, success, error); - }; - }); - return Resource; - } - - return ResourceFactory; - }]; -} |
