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- <pre class="prettyprint lang-js">/*!
- * Ext JS Library 3.3.1
- * Copyright(c) 2006-2010 Sencha Inc.
- * licensing@sencha.com
- * http://www.sencha.com/license
+<!DOCTYPE html><html><head><title>Sencha Documentation Project</title><link rel="stylesheet" href="../reset.css" type="text/css"><link rel="stylesheet" href="../prettify.css" type="text/css"><link rel="stylesheet" href="../prettify_sa.css" type="text/css"><script type="text/javascript" src="../prettify.js"></script></head><body onload="prettyPrint()"><pre class="prettyprint"><pre><span id='Ext-data.proxy.Direct'>/**
+</span> * @class Ext.data.proxy.Direct
+ * @extends Ext.data.proxy.Server
+ *
+ * This class is used to send requests to the server using {@link Ext.direct}. When a request is made,
+ * the transport mechanism is handed off to the appropriate {@link Ext.direct.RemotingProvider Provider}
+ * to complete the call.
+ *
+ * ## Specifying the function
+ * This proxy expects a Direct remoting method to be passed in order to be able to complete requests.
+ * This can be done by specifying the {@link #directFn} configuration. This will use the same direct
+ * method for all requests. Alternatively, you can provide an {@link #api} configuration. This
+ * allows you to specify a different remoting method for each CRUD action.
+ *
+ * ## Paramaters
+ * This proxy provides options to help configure which parameters will be sent to the server.
+ * By specifying the {@link #paramsAsHash} option, it will send an object literal containing each
+ * of the passed parameters. The {@link #paramOrder} option can be used to specify the order in which
+ * the remoting method parameters are passed.
+ *
+ * ## Example Usage
+ *
+ * Ext.define('User', {
+ * extend: 'Ext.data.Model',
+ * fields: ['firstName', 'lastName'],
+ * proxy: {
+ * type: 'direct',
+ * directFn: MyApp.getUsers,
+ * paramOrder: 'id' // Tells the proxy to pass the id as the first parameter to the remoting method.
+ * }
+ * });
+ * User.load(1);
*/
-<div id="cls-Ext.Direct"></div>/**
- * @class Ext.Direct
- * @extends Ext.util.Observable
- * <p><b><u>Overview</u></b></p>
- *
- * <p>Ext.Direct aims to streamline communication between the client and server
- * by providing a single interface that reduces the amount of common code
- * typically required to validate data and handle returned data packets
- * (reading data, error conditions, etc).</p>
- *
- * <p>The Ext.direct namespace includes several classes for a closer integration
- * with the server-side. The Ext.data namespace also includes classes for working
- * with Ext.data.Stores which are backed by data from an Ext.Direct method.</p>
- *
- * <p><b><u>Specification</u></b></p>
- *
- * <p>For additional information consult the
- * <a href="http://extjs.com/products/extjs/direct.php">Ext.Direct Specification</a>.</p>
- *
- * <p><b><u>Providers</u></b></p>
- *
- * <p>Ext.Direct uses a provider architecture, where one or more providers are
- * used to transport data to and from the server. There are several providers
- * that exist in the core at the moment:</p><div class="mdetail-params"><ul>
- *
- * <li>{@link Ext.direct.JsonProvider JsonProvider} for simple JSON operations</li>
- * <li>{@link Ext.direct.PollingProvider PollingProvider} for repeated requests</li>
- * <li>{@link Ext.direct.RemotingProvider RemotingProvider} exposes server side
- * on the client.</li>
- * </ul></div>
- *
- * <p>A provider does not need to be invoked directly, providers are added via
- * {@link Ext.Direct}.{@link Ext.Direct#add add}.</p>
- *
- * <p><b><u>Router</u></b></p>
- *
- * <p>Ext.Direct utilizes a "router" on the server to direct requests from the client
- * to the appropriate server-side method. Because the Ext.Direct API is completely
- * platform-agnostic, you could completely swap out a Java based server solution
- * and replace it with one that uses C# without changing the client side JavaScript
- * at all.</p>
- *
- * <p><b><u>Server side events</u></b></p>
- *
- * <p>Custom events from the server may be handled by the client by adding
- * listeners, for example:</p>
- * <pre><code>
-{"type":"event","name":"message","data":"Successfully polled at: 11:19:30 am"}
-
-// add a handler for a 'message' event sent by the server
-Ext.Direct.on('message', function(e){
- out.append(String.format('<p><i>{0}</i></p>', e.data));
- out.el.scrollTo('t', 100000, true);
-});
- * </code></pre>
- * @singleton
- */
-Ext.Direct = Ext.extend(Ext.util.Observable, {
- <div id="prop-Ext.Direct-eventTypes"></div>/**
- * Each event type implements a getData() method. The default event types are:
- * <div class="mdetail-params"><ul>
- * <li><b><tt>event</tt></b> : Ext.Direct.Event</li>
- * <li><b><tt>exception</tt></b> : Ext.Direct.ExceptionEvent</li>
- * <li><b><tt>rpc</tt></b> : Ext.Direct.RemotingEvent</li>
- * </ul></div>
- * @property eventTypes
- * @type Object
+Ext.define('Ext.data.proxy.Direct', {
+ /* Begin Definitions */
+
+ extend: 'Ext.data.proxy.Server',
+ alternateClassName: 'Ext.data.DirectProxy',
+
+ alias: 'proxy.direct',
+
+ requires: ['Ext.direct.Manager'],
+
+ /* End Definitions */
+
+<span id='Ext-data.proxy.Direct-cfg-paramOrder'> /**
+</span> * @cfg {Array/String} paramOrder Defaults to <tt>undefined</tt>. A list of params to be executed
+ * server side. Specify the params in the order in which they must be executed on the server-side
+ * as either (1) an Array of String values, or (2) a String of params delimited by either whitespace,
+ * comma, or pipe. For example,
+ * any of the following would be acceptable:<pre><code>
+paramOrder: ['param1','param2','param3']
+paramOrder: 'param1 param2 param3'
+paramOrder: 'param1,param2,param3'
+paramOrder: 'param1|param2|param'
+ </code></pre>
*/
+ paramOrder: undefined,
- <div id="prop-Ext.Direct-exceptions"></div>/**
- * Four types of possible exceptions which can occur:
- * <div class="mdetail-params"><ul>
- * <li><b><tt>Ext.Direct.exceptions.TRANSPORT</tt></b> : 'xhr'</li>
- * <li><b><tt>Ext.Direct.exceptions.PARSE</tt></b> : 'parse'</li>
- * <li><b><tt>Ext.Direct.exceptions.LOGIN</tt></b> : 'login'</li>
- * <li><b><tt>Ext.Direct.exceptions.SERVER</tt></b> : 'exception'</li>
- * </ul></div>
- * @property exceptions
- * @type Object
+<span id='Ext-data.proxy.Direct-cfg-paramsAsHash'> /**
+</span> * @cfg {Boolean} paramsAsHash
+ * Send parameters as a collection of named arguments (defaults to <tt>true</tt>). Providing a
+ * <tt>{@link #paramOrder}</tt> nullifies this configuration.
*/
- exceptions: {
- TRANSPORT: 'xhr',
- PARSE: 'parse',
- LOGIN: 'login',
- SERVER: 'exception'
- },
+ paramsAsHash: true,
+<span id='Ext-data.proxy.Direct-cfg-directFn'> /**
+</span> * @cfg {Function} directFn
+ * Function to call when executing a request. directFn is a simple alternative to defining the api configuration-parameter
+ * for Store's which will not implement a full CRUD api.
+ */
+ directFn : undefined,
+
+<span id='Ext-data.proxy.Direct-cfg-api'> /**
+</span> * @cfg {Object} api The same as {@link Ext.data.proxy.Server#api}, however instead of providing urls, you should provide a direct
+ * function call.
+ */
+
+<span id='Ext-data.proxy.Direct-cfg-extraParams'> /**
+</span> * @cfg {Object} extraParams Extra parameters that will be included on every read request. Individual requests with params
+ * of the same name will override these params when they are in conflict.
+ */
+
// private
- constructor: function(){
- this.addEvents(
- <div id="event-Ext.Direct-event"></div>/**
- * @event event
- * Fires after an event.
- * @param {event} e The {@link Ext.Direct#eventTypes Ext.Direct.Event type} that occurred.
- * @param {Ext.direct.Provider} provider The {@link Ext.direct.Provider Provider}.
- */
- 'event',
- <div id="event-Ext.Direct-exception"></div>/**
- * @event exception
- * Fires after an event exception.
- * @param {event} e The {@link Ext.Direct#eventTypes Ext.Direct.Event type} that occurred.
- */
- 'exception'
- );
- this.transactions = {};
- this.providers = {};
- },
-
- <div id="method-Ext.Direct-addProvider"></div>/**
- * Adds an Ext.Direct Provider and creates the proxy or stub methods to execute server-side methods.
- * If the provider is not already connected, it will auto-connect.
- * <pre><code>
-var pollProv = new Ext.direct.PollingProvider({
- url: 'php/poll2.php'
-});
-
-Ext.Direct.addProvider(
- {
- "type":"remoting", // create a {@link Ext.direct.RemotingProvider}
- "url":"php\/router.php", // url to connect to the Ext.Direct server-side router.
- "actions":{ // each property within the actions object represents a Class
- "TestAction":[ // array of methods within each server side Class
- {
- "name":"doEcho", // name of method
- "len":1
- },{
- "name":"multiply",
- "len":1
- },{
- "name":"doForm",
- "formHandler":true, // handle form on server with Ext.Direct.Transaction
- "len":1
- }]
- },
- "namespace":"myApplication",// namespace to create the Remoting Provider in
- },{
- type: 'polling', // create a {@link Ext.direct.PollingProvider}
- url: 'php/poll.php'
+ paramOrderRe: /[\s,|]/,
+
+ constructor: function(config){
+ var me = this;
+
+ Ext.apply(me, config);
+ if (Ext.isString(me.paramOrder)) {
+ me.paramOrder = me.paramOrder.split(me.paramOrderRe);
+ }
+ me.callParent(arguments);
},
- pollProv // reference to previously created instance
-);
- * </code></pre>
- * @param {Object/Array} provider Accepts either an Array of Provider descriptions (an instance
- * or config object for a Provider) or any number of Provider descriptions as arguments. Each
- * Provider description instructs Ext.Direct how to create client-side stub methods.
- */
- addProvider : function(provider){
- var a = arguments;
- if(a.length > 1){
- for(var i = 0, len = a.length; i < len; i++){
- this.addProvider(a[i]);
- }
- return;
+
+ doRequest: function(operation, callback, scope) {
+ var me = this,
+ writer = me.getWriter(),
+ request = me.buildRequest(operation, callback, scope),
+ fn = me.api[request.action] || me.directFn,
+ args = [],
+ params = request.params,
+ paramOrder = me.paramOrder,
+ method,
+ i = 0,
+ len;
+
+ //<debug>
+ if (!fn) {
+ Ext.Error.raise('No direct function specified for this proxy');
}
-
- // if provider has not already been instantiated
- if(!provider.events){
- provider = new Ext.Direct.PROVIDERS[provider.type](provider);
+ //</debug>
+
+ if (operation.allowWrite()) {
+ request = writer.write(request);
}
- provider.id = provider.id || Ext.id();
- this.providers[provider.id] = provider;
-
- provider.on('data', this.onProviderData, this);
- provider.on('exception', this.onProviderException, this);
-
-
- if(!provider.isConnected()){
- provider.connect();
+
+ if (operation.action == 'read') {
+ // We need to pass params
+ method = fn.directCfg.method;
+
+ if (method.ordered) {
+ if (method.len > 0) {
+ if (paramOrder) {
+ for (len = paramOrder.length; i < len; ++i) {
+ args.push(params[paramOrder[i]]);
+ }
+ } else if (me.paramsAsHash) {
+ args.push(params);
+ }
+ }
+ } else {
+ args.push(params);
+ }
+ } else {
+ args.push(request.jsonData);
}
-
- return provider;
+
+ Ext.apply(request, {
+ args: args,
+ directFn: fn
+ });
+ args.push(me.createRequestCallback(request, operation, callback, scope), me);
+ fn.apply(window, args);
},
-
- <div id="method-Ext.Direct-getProvider"></div>/**
- * Retrieve a {@link Ext.direct.Provider provider} by the
- * <b><tt>{@link Ext.direct.Provider#id id}</tt></b> specified when the provider is
- * {@link #addProvider added}.
- * @param {String} id Unique identifier assigned to the provider when calling {@link #addProvider}
+
+ /*
+ * Inherit docs. We don't apply any encoding here because
+ * all of the direct requests go out as jsonData
*/
- getProvider : function(id){
- return this.providers[id];
- },
-
- removeProvider : function(id){
- var provider = id.id ? id : this.providers[id];
- provider.un('data', this.onProviderData, this);
- provider.un('exception', this.onProviderException, this);
- delete this.providers[provider.id];
- return provider;
- },
-
- addTransaction: function(t){
- this.transactions[t.tid] = t;
- return t;
+ applyEncoding: function(value){
+ return value;
},
-
- removeTransaction: function(t){
- delete this.transactions[t.tid || t];
- return t;
+
+ createRequestCallback: function(request, operation, callback, scope){
+ var me = this;
+
+ return function(data, event){
+ me.processResponse(event.status, operation, request, event, callback, scope);
+ };
},
-
- getTransaction: function(tid){
- return this.transactions[tid.tid || tid];
+
+ // inherit docs
+ extractResponseData: function(response){
+ return Ext.isDefined(response.result) ? response.result : response.data;
},
-
- onProviderData : function(provider, e){
- if(Ext.isArray(e)){
- for(var i = 0, len = e.length; i < len; i++){
- this.onProviderData(provider, e[i]);
- }
- return;
- }
- if(e.name && e.name != 'event' && e.name != 'exception'){
- this.fireEvent(e.name, e);
- }else if(e.type == 'exception'){
- this.fireEvent('exception', e);
- }
- this.fireEvent('event', e, provider);
+
+ // inherit docs
+ setException: function(operation, response) {
+ operation.setException(response.message);
},
-
- createEvent : function(response, extraProps){
- return new Ext.Direct.eventTypes[response.type](Ext.apply(response, extraProps));
+
+ // inherit docs
+ buildUrl: function(){
+ return '';
}
});
-// overwrite impl. with static instance
-Ext.Direct = new Ext.Direct();
-
-Ext.Direct.TID = 1;
-Ext.Direct.PROVIDERS = {};</pre>
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-</html>
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+</pre></pre></body></html>
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git.ithinksw.org / extjs.git / blobdiff