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- <title>The source code</title>
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- <pre class="prettyprint lang-js">/*!
- * Ext JS Library 3.0.3
- * Copyright(c) 2006-2009 Ext JS, LLC
- * licensing@extjs.com
- * http://www.extjs.com/license
- */
-
-<div id="cls-Ext.data.Api"></div>/**
- * @class Ext.data.Api
- * @extends Object
- * Ext.data.Api is a singleton designed to manage the data API including methods
- * for validating a developer's DataProxy API. Defines variables for CRUD actions
- * create, read, update and destroy in addition to a mapping of RESTful HTTP methods
- * GET, POST, PUT and DELETE to CRUD actions.
- * @singleton
- */
-Ext.data.Api = (function() {
-
- // private validActions. validActions is essentially an inverted hash of Ext.data.Api.actions, where value becomes the key.
- // Some methods in this singleton (e.g.: getActions, getVerb) will loop through actions with the code <code>for (var verb in this.actions)</code>
- // For efficiency, some methods will first check this hash for a match. Those methods which do acces validActions will cache their result here.
- // We cannot pre-define this hash since the developer may over-ride the actions at runtime.
- var validActions = {};
-
- return {
- <div id="prop-Ext.data.Api-actions"></div>/**
- * Defined actions corresponding to remote actions:
- * <pre><code>
-actions: {
- create : 'create', // Text representing the remote-action to create records on server.
- read : 'read', // Text representing the remote-action to read/load data from server.
- update : 'update', // Text representing the remote-action to update records on server.
- destroy : 'destroy' // Text representing the remote-action to destroy records on server.
-}
- * </code></pre>
- * @property actions
- * @type Object
- */
- actions : {
- create : 'create',
- read : 'read',
- update : 'update',
- destroy : 'destroy'
- },
-
- <div id="prop-Ext.data.Api-restActions"></div>/**
- * Defined {CRUD action}:{HTTP method} pairs to associate HTTP methods with the
- * corresponding actions for {@link Ext.data.DataProxy#restful RESTful proxies}.
- * Defaults to:
- * <pre><code>
-restActions : {
- create : 'POST',
- read : 'GET',
- update : 'PUT',
- destroy : 'DELETE'
-},
- * </code></pre>
- */
- restActions : {
- create : 'POST',
- read : 'GET',
- update : 'PUT',
- destroy : 'DELETE'
- },
-
- <div id="method-Ext.data.Api-isAction"></div>/**
- * Returns true if supplied action-name is a valid API action defined in <code>{@link #actions}</code> constants
- * @param {String} action
- * @param {String[]}(Optional) List of available CRUD actions. Pass in list when executing multiple times for efficiency.
- * @return {Boolean}
- */
- isAction : function(action) {
- return (Ext.data.Api.actions[action]) ? true : false;
- },
-
- <div id="method-Ext.data.Api-getVerb"></div>/**
- * Returns the actual CRUD action KEY "create", "read", "update" or "destroy" from the supplied action-name. This method is used internally and shouldn't generally
- * need to be used directly. The key/value pair of Ext.data.Api.actions will often be identical but this is not necessarily true. A developer can override this naming
- * convention if desired. However, the framework internally calls methods based upon the KEY so a way of retreiving the the words "create", "read", "update" and "destroy" is
- * required. This method will cache discovered KEYS into the private validActions hash.
- * @param {String} name The runtime name of the action.
- * @return {String||null} returns the action-key, or verb of the user-action or null if invalid.
- * @nodoc
- */
- getVerb : function(name) {
- if (validActions[name]) {
- return validActions[name]; // <-- found in cache. return immediately.
- }
- for (var verb in this.actions) {
- if (this.actions[verb] === name) {
- validActions[name] = verb;
- break;
- }
- }
- return (validActions[name] !== undefined) ? validActions[name] : null;
- },
-
- <div id="method-Ext.data.Api-isValid"></div>/**
- * Returns true if the supplied API is valid; that is, check that all keys match defined actions
- * otherwise returns an array of mistakes.
- * @return {String[]||true}
- */
- isValid : function(api){
- var invalid = [];
- var crud = this.actions; // <-- cache a copy of the actions.
- for (var action in api) {
- if (!(action in crud)) {
- invalid.push(action);
- }
- }
- return (!invalid.length) ? true : invalid;
- },
-
- <div id="method-Ext.data.Api-hasUniqueUrl"></div>/**
- * Returns true if the supplied verb upon the supplied proxy points to a unique url in that none of the other api-actions
- * point to the same url. The question is important for deciding whether to insert the "xaction" HTTP parameter within an
- * Ajax request. This method is used internally and shouldn't generally need to be called directly.
- * @param {Ext.data.DataProxy} proxy
- * @param {String} verb
- * @return {Boolean}
- */
- hasUniqueUrl : function(proxy, verb) {
- var url = (proxy.api[verb]) ? proxy.api[verb].url : null;
- var unique = true;
- for (var action in proxy.api) {
- if ((unique = (action === verb) ? true : (proxy.api[action].url != url) ? true : false) === false) {
- break;
- }
- }
- return unique;
- },
-
- <div id="method-Ext.data.Api-prepare"></div>/**
- * This method is used internally by <tt>{@link Ext.data.DataProxy DataProxy}</tt> and should not generally need to be used directly.
- * Each action of a DataProxy api can be initially defined as either a String or an Object. When specified as an object,
- * one can explicitly define the HTTP method (GET|POST) to use for each CRUD action. This method will prepare the supplied API, setting
- * each action to the Object form. If your API-actions do not explicitly define the HTTP method, the "method" configuration-parameter will
- * be used. If the method configuration parameter is not specified, POST will be used.
- <pre><code>
-new Ext.data.HttpProxy({
- method: "POST", // <-- default HTTP method when not specified.
- api: {
- create: 'create.php',
- load: 'read.php',
- save: 'save.php',
- destroy: 'destroy.php'
- }
-});
-
-// Alternatively, one can use the object-form to specify the API
-new Ext.data.HttpProxy({
- api: {
- load: {url: 'read.php', method: 'GET'},
- create: 'create.php',
- destroy: 'destroy.php',
- save: 'update.php'
- }
-});
- </code></pre>
- *
- * @param {Ext.data.DataProxy} proxy
- */
- prepare : function(proxy) {
- if (!proxy.api) {
- proxy.api = {}; // <-- No api? create a blank one.
- }
- for (var verb in this.actions) {
- var action = this.actions[verb];
- proxy.api[action] = proxy.api[action] || proxy.url || proxy.directFn;
- if (typeof(proxy.api[action]) == 'string') {
- proxy.api[action] = {
- url: proxy.api[action]
- };
- }
- }
- },
-
- <div id="method-Ext.data.Api-restify"></div>/**
- * Prepares a supplied Proxy to be RESTful. Sets the HTTP method for each api-action to be one of
- * GET, POST, PUT, DELETE according to the defined {@link #restActions}.
- * @param {Ext.data.DataProxy} proxy
- */
- restify : function(proxy) {
- proxy.restful = true;
- for (var verb in this.restActions) {
- proxy.api[this.actions[verb]].method = this.restActions[verb];
- }
- // TODO: perhaps move this interceptor elsewhere? like into DataProxy, perhaps? Placed here
- // to satisfy initial 3.0 final release of REST features.
- proxy.onWrite = proxy.onWrite.createInterceptor(function(action, o, response, rs) {
- var reader = o.reader;
- var res = new Ext.data.Response({
- action: action,
- raw: response
- });
-
- switch (response.status) {
- case 200: // standard 200 response, send control back to HttpProxy#onWrite
- return true;
- break;
- case 201: // entity created but no response returned
- //res[reader.meta.successProperty] = true;
- res.success = true;
- break;
- case 204: // no-content. Create a fake response.
- //res[reader.meta.successProperty] = true;
- //res[reader.meta.root] = null;
- res.success = true;
- res.data = null;
- break;
- default:
- return true;
- break;
- }
- /*
- if (res[reader.meta.successProperty] === true) {
- this.fireEvent("write", this, action, res[reader.meta.root], res, rs, o.request.arg);
- } else {
- this.fireEvent('exception', this, 'remote', action, o, res, rs);
- }
- */
- if (res.success === true) {
- this.fireEvent("write", this, action, res.data, res, rs, o.request.arg);
- } else {
- this.fireEvent('exception', this, 'remote', action, o, res, rs);
- }
- o.request.callback.call(o.request.scope, res.data, res, res.success);
-
- return false; // <-- false to prevent intercepted function from running.
- }, proxy);
- }
- };
-})();
-
-<div id="method-Ext.data.Api-Response"></div>/**
- * Ext.data.Response
- * Experimental. Do not use directly.
- */
-Ext.data.Response = function(params, response) {
- Ext.apply(this, params, {
- raw: response
- });
-};
-Ext.data.Response.prototype = {
- message : null,
- success : false,
- status : null,
- root : null,
- raw : null,
-
- getMessage : function() {
- return this.message;
- },
- getSuccess : function() {
- return this.success;
- },
- getStatus : function() {
- return this.status
- },
- getRoot : function() {
- return this.root;
- },
- getRawResponse : function() {
- return this.raw;
- }
-};
-
-<div id="cls-Ext.data.Api.Error"></div>/**
- * @class Ext.data.Api.Error
- * @extends Ext.Error
- * Error class for Ext.data.Api errors
- */
-Ext.data.Api.Error = Ext.extend(Ext.Error, {
- constructor : function(message, arg) {
- this.arg = arg;
- Ext.Error.call(this, message);
- },
- name: 'Ext.data.Api'
-});
-Ext.apply(Ext.data.Api.Error.prototype, {
- lang: {
- 'action-url-undefined': 'No fallback url defined for this action. When defining a DataProxy api, please be sure to define an url for each CRUD action in Ext.data.Api.actions or define a default url in addition to your api-configuration.',
- 'invalid': 'received an invalid API-configuration. Please ensure your proxy API-configuration contains only the actions defined in Ext.data.Api.actions',
- 'invalid-url': 'Invalid url. Please review your proxy configuration.',
- 'execute': 'Attempted to execute an unknown action. Valid API actions are defined in Ext.data.Api.actions"'
- }
-});
-
-
-</pre>
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