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<div xmlns:ext="http://www.extjs.com" class="body-wrap"><div class="inheritance res-block"><pre class="res-block-inner"><a href="output/Ext.util.Observable.html" ext:member="" ext:cls="Ext.util.Observable">Observable</a>
<img src="resources/elbow-end.gif">DataProxy</pre></div><h1>Class <a href="source/DataProxy.html#cls-Ext.data.DataProxy">Ext.data.DataProxy</a></h1><table cellspacing="0"><tr><td class="label">Package:</td><td class="hd-info">Ext.data</td></tr><tr><td class="label">Defined In:</td><td class="hd-info"><a href="source/DataProxy.html#cls-Ext.data.DataProxy">DataProxy.js</a></td></tr><tr><td class="label">Class:</td><td class="hd-info"><a href="source/DataProxy.html#cls-Ext.data.DataProxy">DataProxy</a></td></tr><tr><td class="label">Subclasses:</td><td class="hd-info"><a href="output/Ext.data.DirectProxy.html" ext:cls="Ext.data.DirectProxy">DirectProxy</a>, <a href="output/Ext.data.HttpProxy.html" ext:cls="Ext.data.HttpProxy">HttpProxy</a>, <a href="output/Ext.data.MemoryProxy.html" ext:cls="Ext.data.MemoryProxy">MemoryProxy</a>, <a href="output/Ext.data.ScriptTagProxy.html" ext:cls="Ext.data.ScriptTagProxy">ScriptTagProxy</a></td></tr><tr><td class="label">Extends:</td><td class="hd-info"><a href="output/Ext.util.Observable.html" ext:cls="Ext.util.Observable" ext:member="">Observable</a></td></tr></table><div class="description"><p>Abstract base class for implementations which provide retrieval of unformatted data objects.
This class is intended to be extended and should not be created directly. For existing implementations,
see <a href="output/Ext.data.DirectProxy.html" ext:cls="Ext.data.DirectProxy">Ext.data.DirectProxy</a>, <a href="output/Ext.data.HttpProxy.html" ext:cls="Ext.data.HttpProxy">Ext.data.HttpProxy</a>, <a href="output/Ext.data.ScriptTagProxy.html" ext:cls="Ext.data.ScriptTagProxy">Ext.data.ScriptTagProxy</a> and
<a href="output/Ext.data.MemoryProxy.html" ext:cls="Ext.data.MemoryProxy">Ext.data.MemoryProxy</a>.</p>
<p>DataProxy implementations are usually used in conjunction with an implementation of <a href="output/Ext.data.DataReader.html" ext:cls="Ext.data.DataReader">Ext.data.DataReader</a>
(of the appropriate type which knows how to parse the data object) to provide a block of
<a href="output/Ext.data.Records.html" ext:cls="Ext.data.Records">Ext.data.Records</a> to an <a href="output/Ext.data.Store.html" ext:cls="Ext.data.Store">Ext.data.Store</a>.</p>
<p>The parameter to a DataProxy constructor may be an <a href="output/Ext.data.Connection.html" ext:cls="Ext.data.Connection">Ext.data.Connection</a> or can also be the
config object to an <a href="output/Ext.data.Connection.html" ext:cls="Ext.data.Connection">Ext.data.Connection</a>.</p>
<p>Custom implementations must implement either the <code><b>doRequest</b></code> method (preferred) or the
<code>load</code> method (deprecated). See
<a href="output/Ext.data.HttpProxy.html" ext:cls="Ext.data.HttpProxy">Ext.data.HttpProxy</a>.<a href="output/Ext.data.HttpProxy.html#Ext.data.HttpProxy-doRequest" ext:member="doRequest" ext:cls="Ext.data.HttpProxy">doRequest</a> or
<a href="output/Ext.data.HttpProxy.html" ext:cls="Ext.data.HttpProxy">Ext.data.HttpProxy</a>.<a href="output/Ext.data.HttpProxy.html#Ext.data.HttpProxy-load" ext:member="load" ext:cls="Ext.data.HttpProxy">load</a> for additional details.</p>
<p><b><u>Example 1</u></b></p>
<pre><code>proxy: <b>new</b> Ext.data.ScriptTagProxy({
<a href="output/Ext.data.Connection.html#Ext.data.Connection-url" ext:member="url" ext:cls="Ext.data.Connection">url</a>: <em>'http:<i>//extjs.com/forum/topics-remote.php'</em></i>
}),</code></pre>
<p><b><u>Example 2</u></b></p>
<pre><code>proxy : <b>new</b> Ext.data.HttpProxy({
<a href="output/Ext.data.Connection.html#Ext.data.Connection-method" ext:member="method" ext:cls="Ext.data.Connection">method</a>: <em>'GET'</em>,
<a href="output/Ext.data.HttpProxy.html#Ext.data.HttpProxy-prettyUrls" ext:member="prettyUrls" ext:cls="Ext.data.HttpProxy">prettyUrls</a>: false,
<a href="output/Ext.data.Connection.html#Ext.data.Connection-url" ext:member="url" ext:cls="Ext.data.Connection">url</a>: <em>'local/<b>default</b>.php'</em>, <i>// see options parameter <b>for</b> <a href="output/Ext.Ajax.html#Ext.Ajax-request" ext:member="request" ext:cls="Ext.Ajax">Ext.Ajax.request</a></i>
<a href="output/Ext.data.DataProxy.html#Ext.data.DataProxy-api" ext:member="api" ext:cls="Ext.data.DataProxy">api</a>: {
<i>// all actions except the following will use above url</i>
create : <em>'local/<b>new</b>.php'</em>,
update : <em>'local/update.php'</em>
}
}),</code></pre>
<p>And <b>new in Ext version 3</b>, attach centralized event-listeners upon the DataProxy class itself! This is a great place
to implement a <i>messaging system</i> to centralize your application's user-feedback and error-handling.</p>
<pre><code><i>// Listen to all <em>"beforewrite"</em> event fired by all proxies.</i>
Ext.data.DataProxy.on(<em>'beforewrite'</em>, <b>function</b>(proxy, action) {
console.log(<em>'beforewrite: '</em>, action);
});
<i>// Listen to <em>"write"</em> event fired by all proxies</i>
Ext.data.DataProxy.on(<em>'write'</em>, <b>function</b>(proxy, action, data, res, rs) {
console.info(<em>'write: '</em>, action);
});
<i>// Listen to <em>"exception"</em> event fired by all proxies</i>
Ext.data.DataProxy.on(<em>'exception'</em>, <b>function</b>(proxy, type, action, exception) {
console.error(type + action + <em>' exception);
});</code></pre>
<b>Note:</b> These three events are all fired with the signature of the corresponding <i>DataProxy instance</i> event <a href="output/Ext.data.DataProxy.html#Ext.data.DataProxy-beforewrite" ext:member="beforewrite" ext:cls="Ext.data.DataProxy">beforewrite</a>, <a href="output/Ext.data.DataProxy.html#Ext.data.DataProxy-write" ext:member="write" ext:cls="Ext.data.DataProxy">write</a> and <a href="output/Ext.data.DataProxy.html#Ext.data.DataProxy-exception" ext:member="exception" ext:cls="Ext.data.DataProxy">exception</a>.</div><div class="hr"></div><a id="Ext.data.DataProxy-configs"></a><h2>Config Options</h2><table cellspacing="0" class="member-table"><tbody><tr><th colspan="2" class="sig-header">Config Options</th><th class="msource-header">Defined By</th></tr><tr class="config-row expandable "><td class="micon"><a href="#expand" class="exi"> </a></td><td class="sig"><a id="Ext.data.DataProxy-api"></a><b><a href="source/DataProxy.html#cfg-Ext.data.DataProxy-api">api</a></b> : Object<div class="mdesc"><div class="short">Specific urls to call on CRUD action methods "read", "create", "update" and "destroy".
Defaults to:api: {
read ...</div><div class="long">Specific urls to call on CRUD action methods "read", "create", "update" and "destroy".
Defaults to:<pre><code>api: {
read : undefined,
create : undefined,
update : undefined,
destroy : undefined
}</code></pre>
<p>The url is built based upon the action being executed <tt>[load|create|save|destroy]</tt>
using the commensurate <tt><a href="output/Ext.data.DataProxy.html#Ext.data.DataProxy-api" ext:member="api" ext:cls="Ext.data.DataProxy">api</a></tt> property, or if undefined default to the
configured <a href="output/Ext.data.Store.html" ext:cls="Ext.data.Store">Ext.data.Store</a>.<a href="output/Ext.data.Store.html#Ext.data.Store-url" ext:member="url" ext:cls="Ext.data.Store">url</a>.</p><br>
<p>For example:</p>
<pre><code>api: {
load : <em>'/controller/load'</em>,
create : <em>'/controller/<b>new</b>'</em>, <i>// Server MUST <b>return</b> idProperty of <b>new</b> record</i>
save : <em>'/controller/update'</em>,
destroy : <em>'/controller/destroy_action'</em>
}
<i>// Alternatively, one can use the object-form to specify each API-action</i>
api: {
load: {url: <em>'read.php'</em>, method: <em>'GET'</em>},
create: <em>'create.php'</em>,
destroy: <em>'destroy.php'</em>,
save: <em>'update.php'</em>
}</code></pre>
<p>If the specific URL for a given CRUD action is undefined, the CRUD action request
will be directed to the configured <tt><a href="output/Ext.data.Connection.html#Ext.data.Connection-url" ext:member="url" ext:cls="Ext.data.Connection">url</a></tt>.</p>
<br><p><b>Note</b>: To modify the URL for an action dynamically the appropriate API
property should be modified before the action is requested using the corresponding before
action event. For example to modify the URL associated with the load action:
<pre><code><i>// modify the url <b>for</b> the action</i>
myStore.on({
beforeload: {
fn: <b>function</b> (store, options) {
<i>// use <tt><a href="output/Ext.data.HttpProxy.html#Ext.data.HttpProxy-setUrl" ext:member="setUrl" ext:cls="Ext.data.HttpProxy">setUrl</a></tt> to change the URL <b>for</b> *just* this request.</i>
store.proxy.setUrl(<em>'changed1.php'</em>);
<i>// set optional second parameter to true to make this URL change</i>
<i>// permanent, applying this URL <b>for</b> all subsequent requests.</i>
store.proxy.setUrl(<em>'changed1.php'</em>, true);
<i>// Altering the proxy API should be done using the public</i>
<i>// method <tt><a href="output/Ext.data.DataProxy.html#Ext.data.DataProxy-setApi" ext:member="setApi" ext:cls="Ext.data.DataProxy">setApi</a></tt>.</i>
store.proxy.setApi(<em>'read'</em>, <em>'changed2.php'</em>);
<i>// Or set the entire API <b>with</b> a config-object.</i>
<i>// When using the config-object option, you must redefine the <b>entire</b></i>
<i>// API -- not just a specific action of it.</i>
store.proxy.setApi({
read : <em>'changed_read.php'</em>,
create : <em>'changed_create.php'</em>,
update : <em>'changed_update.php'</em>,
destroy : <em>'changed_destroy.php'</em>
});
}
}
});</code></pre>
</p></div></div></td><td class="msource">DataProxy</td></tr><tr class="config-row expandable "><td class="micon"><a href="#expand" class="exi"> </a></td><td class="sig"><a id="Ext.data.DataProxy-doRequest"></a><b><a href="source/DataProxy.html#cfg-Ext.data.DataProxy-doRequest">doRequest</a></b> : Function<div class="mdesc"><div class="short">Abstract method that should be implemented in all subclasses. Note: Should only be used by custom-proxy developers.
...</div><div class="long">Abstract method that should be implemented in all subclasses. <b>Note:</b> Should only be used by custom-proxy developers.
(e.g.: <a href="output/Ext.data.HttpProxy.html#Ext.data.HttpProxy-doRequest" ext:member="doRequest" ext:cls="Ext.data.HttpProxy">HttpProxy.doRequest</a>,
<a href="output/Ext.data.DirectProxy.html#Ext.data.DirectProxy-doRequest" ext:member="doRequest" ext:cls="Ext.data.DirectProxy">DirectProxy.doRequest</a>).</div></div></td><td class="msource">DataProxy</td></tr><tr class="config-row expandable inherited"><td class="micon"><a href="#expand" class="exi"> </a></td><td class="sig"><a id="Ext.util.Observable-listeners"></a><b><a href="source/Observable.html#cfg-Ext.util.Observable-listeners">listeners</a></b> : Object<div class="mdesc"><div class="short">A config object containing one or more event handlers to be added to this
object during initialization. This should ...</div><div class="long"><p>A config object containing one or more event handlers to be added to this
object during initialization. This should be a valid listeners config object as specified in the
<a href="output/Ext.util.Observable.html#Ext.util.Observable-addListener" ext:member="addListener" ext:cls="Ext.util.Observable">addListener</a> example for attaching multiple handlers at once.</p>
<br><p><b><u>DOM events from ExtJs <a href="output/Ext.Component.html" ext:cls="Ext.Component">Components</a></u></b></p>
<br><p>While <i>some</i> ExtJs Component classes export selected DOM events (e.g. "click", "mouseover" etc), this
is usually only done when extra value can be added. For example the <a href="output/Ext.DataView.html" ext:cls="Ext.DataView">DataView</a>'s
<b><code><a href="output/Ext.DataView.html#Ext.DataView-click" ext:member="click" ext:cls="Ext.DataView">click</a></code></b> event passing the node clicked on. To access DOM
events directly from a Component's HTMLElement, listeners must be added to the <i><a href="output/Ext.Component.html#Ext.Component-getEl" ext:member="getEl" ext:cls="Ext.Component">Element</a></i> after the Component
has been rendered. A plugin can simplify this step:<pre><code><i>// Plugin is configured <b>with</b> a listeners config object.</i>
<i>// The Component is appended to the argument list of all handler functions.</i>
Ext.DomObserver = Ext.extend(Object, {
constructor: <b>function</b>(config) {
this.listeners = config.listeners ? config.listeners : config;
},
<i>// Component passes itself into plugin's init method</i>
init: <b>function</b>(c) {
<b>var</b> p, l = this.listeners;
<b>for</b> (p <b>in</b> l) {
<b>if</b> (Ext.isFunction(l[p])) {
l[p] = this.createHandler(l[p], c);
} <b>else</b> {
l[p].fn = this.createHandler(l[p].fn, c);
}
}
<i>// Add the listeners to the Element immediately following the render call</i>
c.render = c.render.<a href="output/Function.html#Function-createSequence" ext:member="createSequence" ext:cls="Function">createSequence</a>(<b>function</b>() {
<b>var</b> e = c.getEl();
<b>if</b> (e) {
e.on(l);
}
});
},
createHandler: <b>function</b>(fn, c) {
<b>return</b> <b>function</b>(e) {
fn.call(this, e, c);
};
}
});
<b>var</b> combo = <b>new</b> Ext.form.ComboBox({
<i>// Collapse combo when its element is clicked on</i>
plugins: [ <b>new</b> Ext.DomObserver({
click: <b>function</b>(evt, comp) {
comp.collapse();
}
})],
store: myStore,
typeAhead: true,
mode: <em>'local'</em>,
triggerAction: <em>'all'</em>
});</code></pre></p></div></div></td><td class="msource"><a href="output/Ext.util.Observable.html#listeners" ext:member="#listeners" ext:cls="Ext.util.Observable">Observable</a></td></tr><tr class="config-row expandable "><td class="micon"><a href="#expand" class="exi"> </a></td><td class="sig"><a id="Ext.data.DataProxy-onRead"></a><b><a href="source/DataProxy.html#cfg-Ext.data.DataProxy-onRead">onRead</a></b> : Function<div class="mdesc"><div class="short">Abstract method that should be implemented in all subclasses. Note: Should only be used by custom-proxy developers. ...</div><div class="long">Abstract method that should be implemented in all subclasses. <b>Note:</b> Should only be used by custom-proxy developers. Callback for read <a href="output/Ext.data.Api.html#Ext.data.Api-actions" ext:member="actions" ext:cls="Ext.data.Api">action</a>.</div></div></td><td class="msource">DataProxy</td></tr><tr class="config-row expandable "><td class="micon"><a href="#expand" class="exi"> </a></td><td class="sig"><a id="Ext.data.DataProxy-onWrite"></a><b><a href="source/DataProxy.html#cfg-Ext.data.DataProxy-onWrite">onWrite</a></b> : Function<div class="mdesc"><div class="short">Abstract method that should be implemented in all subclasses. Note: Should only be used by custom-proxy developers. ...</div><div class="long">Abstract method that should be implemented in all subclasses. <b>Note:</b> Should only be used by custom-proxy developers. Callback for <i>create, update and destroy</i> <a href="output/Ext.data.Api.html#Ext.data.Api-actions" ext:member="actions" ext:cls="Ext.data.Api">actions</a>.</div></div></td><td class="msource">DataProxy</td></tr><tr class="config-row expandable "><td class="micon"><a href="#expand" class="exi"> </a></td><td class="sig"><a id="Ext.data.DataProxy-restful"></a><b><a href="source/DataProxy.html#cfg-Ext.data.DataProxy-restful">restful</a></b> : Boolean<div class="mdesc"><div class="short">Defaults to false. Set to true to operate in a RESTful manner.
Note: this parameter will automatically be set to tr...</div><div class="long"><p>Defaults to <tt>false</tt>. Set to <tt>true</tt> to operate in a RESTful manner.</p>
<br><p> Note: this parameter will automatically be set to <tt>true</tt> if the
<a href="output/Ext.data.Store.html" ext:cls="Ext.data.Store">Ext.data.Store</a> it is plugged into is set to <code>restful: true</code>. If the
Store is RESTful, there is no need to set this option on the proxy.</p>
<br><p>RESTful implementations enable the serverside framework to automatically route
actions sent to one url based upon the HTTP method, for example:
<pre><code>store: <b>new</b> Ext.data.Store({
restful: true,
proxy: <b>new</b> Ext.data.HttpProxy({url:<em>'/users'</em>}); <i>// all requests sent to /users</i>
...
)}</code></pre>
If there is no <code><a href="output/Ext.data.DataProxy.html#Ext.data.DataProxy-api" ext:member="api" ext:cls="Ext.data.DataProxy">api</a></code> specified in the configuration of the proxy,
all requests will be marshalled to a single RESTful url (/users) so the serverside
framework can inspect the HTTP Method and act accordingly:
<pre>
<u>Method</u> <u>url</u> <u>action</u>
POST /users create
GET /users read
PUT /users/23 update
DESTROY /users/23 delete
</pre></p>
<p>If set to <tt>true</tt>, a <a href="output/Ext.data.Record.html#Ext.data.Record-phantom" ext:member="phantom" ext:cls="Ext.data.Record">non-phantom</a> record's
<a href="output/Ext.data.Record.html#Ext.data.Record-id" ext:member="id" ext:cls="Ext.data.Record">id</a> will be appended to the url. Some MVC (e.g., Ruby on Rails,
Merb and Django) support segment based urls where the segments in the URL follow the
Model-View-Controller approach:<pre><code>someSite.com/controller/action/id</code></pre>
Where the segments in the url are typically:<div class="mdetail-params"><ul>
<li>The first segment : represents the controller class that should be invoked.</li>
<li>The second segment : represents the class function, or method, that should be called.</li>
<li>The third segment : represents the ID (a variable typically passed to the method).</li>
</ul></div></p>
<br><p>Refer to <code><a href="output/Ext.data.DataProxy.html#Ext.data.DataProxy-api" ext:member="api" ext:cls="Ext.data.DataProxy">Ext.data.DataProxy.api</a></code> for additional information.</p></div></div></td><td class="msource">DataProxy</td></tr></tbody></table><a id="Ext.data.DataProxy-props"></a><h2>Public Properties</h2><div class="no-members">This class has no public properties.</div><a id="Ext.data.DataProxy-methods"></a><h2>Public Methods</h2><table cellspacing="0" class="member-table"><tbody><tr><th colspan="2" class="sig-header">Method</th><th class="msource-header">Defined By</th></tr><tr class="method-row expandable inherited"><td class="micon"><a href="#expand" class="exi"> </a></td><td class="sig"><a id="Ext.util.Observable-addEvents"></a><b class="method"><a href="source/Observable.html#method-Ext.util.Observable-addEvents">addEvents</a></b><span class="openparen">( </span><span title="Required" class="required">Object|String o</span><span class="comma">, </span><span title="Required" class="required">string Optional.</span><span class="closeparen"> )</span><span class="colon"> : </span><span class="return">void</span><div class="mdesc"><div class="short">Adds the specified events to the list of events which this Observable may fire.</div><div class="long">Adds the specified events to the list of events which this Observable may fire.<div class="mdetail-params"><strong>Parameters:</strong><ul><li><code>o</code> : Object|String<div class="sub-desc">Either an object with event names as properties with a value of <code>true</code>
or the first event name string if multiple event names are being passed as separate parameters.</div></li><li><code>Optional.</code> : string<div class="sub-desc">Event name if multiple event names are being passed as separate parameters.
Usage:<pre><code>this.addEvents(<em>'storeloaded'</em>, <em>'storecleared'</em>);</code></pre></div></li></ul><strong>Returns:</strong><ul><li>void</li></ul></div></div></div></td><td class="msource"><a href="output/Ext.util.Observable.html#addEvents" ext:member="#addEvents" ext:cls="Ext.util.Observable">Observable</a></td></tr><tr class="method-row expandable inherited"><td class="micon"><a href="#expand" class="exi"> </a></td><td class="sig"><a id="Ext.util.Observable-addListener"></a><b class="method"><a href="source/Observable.html#method-Ext.util.Observable-addListener">addListener</a></b><span class="openparen">( </span><span title="Required" class="required">String eventName</span><span class="comma">, </span><span title="Required" class="required">Function handler</span><span class="comma">, </span><span title="Optional" class="optional">[Object scope]</span><span class="comma">, </span><span title="Optional" class="optional">[Object options]</span><span class="closeparen"> )</span><span class="colon"> : </span><span class="return">void</span><div class="mdesc"><div class="short">Appends an event handler to this object.</div><div class="long">Appends an event handler to this object.<div class="mdetail-params"><strong>Parameters:</strong><ul><li><code>eventName</code> : String<div class="sub-desc">The name of the event to listen for.</div></li><li><code>handler</code> : Function<div class="sub-desc">The method the event invokes.</div></li><li><code>scope</code> : Object<div class="sub-desc">(optional) The scope (<code><b>this</b></code> reference) in which the handler function is executed.
<b>If omitted, defaults to the object which fired the event.</b></div></li><li><code>options</code> : Object<div class="sub-desc">(optional) An object containing handler configuration.
properties. This may contain any of the following properties:<ul>
<li><b>scope</b> : Object<div class="sub-desc">The scope (<code><b>this</b></code> reference) in which the handler function is executed.
<b>If omitted, defaults to the object which fired the event.</b></div></li>
<li><b>delay</b> : Number<div class="sub-desc">The number of milliseconds to delay the invocation of the handler after the event fires.</div></li>
<li><b>single</b> : Boolean<div class="sub-desc">True to add a handler to handle just the next firing of the event, and then remove itself.</div></li>
<li><b>buffer</b> : Number<div class="sub-desc">Causes the handler to be scheduled to run in an <a href="output/Ext.util.DelayedTask.html" ext:cls="Ext.util.DelayedTask">Ext.util.DelayedTask</a> delayed
by the specified number of milliseconds. If the event fires again within that time, the original
handler is <em>not</em> invoked, but the new handler is scheduled in its place.</div></li>
<li><b>target</b> : Observable<div class="sub-desc">Only call the handler if the event was fired on the target Observable, <i>not</i>
if the event was bubbled up from a child Observable.</div></li>
</ul><br>
<p>
<b>Combining Options</b><br>
Using the options argument, it is possible to combine different types of listeners:<br>
<br>
A delayed, one-time listener.
<pre><code>myDataView.on(<em>'click'</em>, this.onClick, this, {
single: true,
delay: 100
});</code></pre>
<p>
<b>Attaching multiple handlers in 1 call</b><br>
The method also allows for a single argument to be passed which is a config object containing properties
which specify multiple handlers.
<p>
<pre><code>myGridPanel.on({
<em>'click'</em> : {
fn: this.onClick,
scope: this,
delay: 100
},
<em>'mouseover'</em> : {
fn: this.onMouseOver,
scope: this
},
<em>'mouseout'</em> : {
fn: this.onMouseOut,
scope: this
}
});</code></pre>
<p>
Or a shorthand syntax:<br>
<pre><code>myGridPanel.on({
<em>'click'</em> : this.onClick,
<em>'mouseover'</em> : this.onMouseOver,
<em>'mouseout'</em> : this.onMouseOut,
scope: this
});</code></pre></div></li></ul><strong>Returns:</strong><ul><li>void</li></ul></div></div></div></td><td class="msource"><a href="output/Ext.util.Observable.html#addListener" ext:member="#addListener" ext:cls="Ext.util.Observable">Observable</a></td></tr><tr class="method-row expandable "><td class="micon"><a href="#expand" class="exi"> </a></td><td class="sig"><a id="Ext.data.DataProxy-destroy"></a><b class="method"><a href="source/DataProxy.html#method-Ext.data.DataProxy-destroy">destroy</a></b><span class="openparen">(</span><span class="closeparen">)</span><span class="colon"> : </span><span class="return">void</span><div class="mdesc"><div class="short">Destroys the proxy by purging any event listeners and cancelling any active requests.</div><div class="long">Destroys the proxy by purging any event listeners and cancelling any active requests.<div class="mdetail-params"><strong>Parameters:</strong><ul><li>None.</li></ul><strong>Returns:</strong><ul><li>void</li></ul></div></div></div></td><td class="msource">DataProxy</td></tr><tr class="method-row expandable inherited"><td class="micon"><a href="#expand" class="exi"> </a></td><td class="sig"><a id="Ext.util.Observable-enableBubble"></a><b class="method"><a href="source/Observable-more.html#method-Ext.util.Observable-enableBubble">enableBubble</a></b><span class="openparen">( </span><span title="Required" class="required">String/Array events</span><span class="closeparen"> )</span><span class="colon"> : </span><span class="return">void</span><div class="mdesc"><div class="short">Enables events fired by this Observable to bubble up an owner hierarchy by calling
this.getBubbleTarget() if present....</div><div class="long"><p>Enables events fired by this Observable to bubble up an owner hierarchy by calling
<code>this.getBubbleTarget()</code> if present. There is no implementation in the Observable base class.</p>
<p>This is commonly used by Ext.Components to bubble events to owner Containers. See <a href="output/Ext.Component.getBubbleTarget.html" ext:cls="Ext.Component.getBubbleTarget">Ext.Component.getBubbleTarget</a>. The default
implementation in Ext.Component returns the Component's immediate owner. But if a known target is required, this can be overridden to
access the required target more quickly.</p>
<p>Example:</p><pre><code>Ext.override(Ext.form.Field, {
<i>// Add functionality to Field's initComponent to enable the change event to bubble</i>
initComponent : Ext.form.Field.prototype.initComponent.createSequence(<b>function</b>() {
this.enableBubble(<em>'change'</em>);
}),
<i>// We know that we want Field's events to bubble directly to the FormPanel.</i>
getBubbleTarget : <b>function</b>() {
<b>if</b> (!this.formPanel) {
this.formPanel = this.findParentByType(<em>'form'</em>);
}
<b>return</b> this.formPanel;
}
});
<b>var</b> myForm = <b>new</b> Ext.formPanel({
title: <em>'User Details'</em>,
items: [{
...
}],
listeners: {
change: <b>function</b>() {
<i>// Title goes red <b>if</b> form has been modified.</i>
myForm.header.setStyle(<em>'color'</em>, <em>'red'</em>);
}
}
});</code></pre><div class="mdetail-params"><strong>Parameters:</strong><ul><li><code>events</code> : String/Array<div class="sub-desc">The event name to bubble, or an Array of event names.</div></li></ul><strong>Returns:</strong><ul><li>void</li></ul></div></div></div></td><td class="msource"><a href="output/Ext.util.Observable.html#enableBubble" ext:member="#enableBubble" ext:cls="Ext.util.Observable">Observable</a></td></tr><tr class="method-row expandable inherited"><td class="micon"><a href="#expand" class="exi"> </a></td><td class="sig"><a id="Ext.util.Observable-fireEvent"></a><b class="method"><a href="source/Observable.html#method-Ext.util.Observable-fireEvent">fireEvent</a></b><span class="openparen">( </span><span title="Required" class="required">String eventName</span><span class="comma">, </span><span title="Required" class="required">Object... args</span><span class="closeparen"> )</span><span class="colon"> : </span><span class="return">Boolean</span><div class="mdesc"><div class="short">Fires the specified event with the passed parameters (minus the event name).
An event may be set to bubble up an Obse...</div><div class="long"><p>Fires the specified event with the passed parameters (minus the event name).</p>
<p>An event may be set to bubble up an Observable parent hierarchy (See <a href="output/Ext.Component.html#Ext.Component-getBubbleTarget" ext:member="getBubbleTarget" ext:cls="Ext.Component">Ext.Component.getBubbleTarget</a>)
by calling <a href="output/Ext.util.Observable.html#Ext.util.Observable-enableBubble" ext:member="enableBubble" ext:cls="Ext.util.Observable">enableBubble</a>.</p><div class="mdetail-params"><strong>Parameters:</strong><ul><li><code>eventName</code> : String<div class="sub-desc">The name of the event to fire.</div></li><li><code>args</code> : Object...<div class="sub-desc">Variable number of parameters are passed to handlers.</div></li></ul><strong>Returns:</strong><ul><li><code>Boolean</code><div class="sub-desc">returns false if any of the handlers return false otherwise it returns true.</div></li></ul></div></div></div></td><td class="msource"><a href="output/Ext.util.Observable.html#fireEvent" ext:member="#fireEvent" ext:cls="Ext.util.Observable">Observable</a></td></tr><tr class="method-row expandable inherited"><td class="micon"><a href="#expand" class="exi"> </a></td><td class="sig"><a id="Ext.util.Observable-hasListener"></a><b class="method"><a href="source/Observable.html#method-Ext.util.Observable-hasListener">hasListener</a></b><span class="openparen">( </span><span title="Required" class="required">String eventName</span><span class="closeparen"> )</span><span class="colon"> : </span><span class="return">Boolean</span><div class="mdesc"><div class="short">Checks to see if this object has any listeners for a specified event</div><div class="long">Checks to see if this object has any listeners for a specified event<div class="mdetail-params"><strong>Parameters:</strong><ul><li><code>eventName</code> : String<div class="sub-desc">The name of the event to check for</div></li></ul><strong>Returns:</strong><ul><li><code>Boolean</code><div class="sub-desc">True if the event is being listened for, else false</div></li></ul></div></div></div></td><td class="msource"><a href="output/Ext.util.Observable.html#hasListener" ext:member="#hasListener" ext:cls="Ext.util.Observable">Observable</a></td></tr><tr class="method-row expandable "><td class="micon"><a href="#expand" class="exi"> </a></td><td class="sig"><a id="Ext.data.DataProxy-isApiAction"></a><b class="method"><a href="source/DataProxy.html#method-Ext.data.DataProxy-isApiAction">isApiAction</a></b><span class="openparen">( </span><span title="Required" class="required">String [Ext.data.Api.CREATE|READ|UPDATE|DESTROY]}</span><span class="closeparen"> )</span><span class="colon"> : </span><span class="return">Boolean</span><div class="mdesc"><div class="short">Returns true if the specified action is defined as a unique action in the api-config.
request. If all API-actions ar...</div><div class="long">Returns true if the specified action is defined as a unique action in the api-config.
request. If all API-actions are routed to unique urls, the xaction parameter is unecessary. However, if no api is defined
and all Proxy actions are routed to DataProxy#url, the server-side will require the xaction parameter to perform a switch to
the corresponding code for CRUD action.<div class="mdetail-params"><strong>Parameters:</strong><ul><li><code>[Ext.data.Api.CREATE|READ|UPDATE|DESTROY]}</code> : String<div class="sub-desc">action</div></li></ul><strong>Returns:</strong><ul><li><code>Boolean</code><div class="sub-desc"></div></li></ul></div></div></div></td><td class="msource">DataProxy</td></tr><tr class="method-row expandable "><td class="micon"><a href="#expand" class="exi"> </a></td><td class="sig"><a id="Ext.data.DataProxy-load"></a><b class="method"><a href="source/DataProxy.html#method-Ext.data.DataProxy-load">load</a></b><span class="openparen">( </span><span title="Required" class="required">Object params</span><span class="comma">, </span><span title="Required" class="required">Object reader</span><span class="comma">, </span><span title="Required" class="required">Object callback</span><span class="comma">, </span><span title="Required" class="required">Object scope</span><span class="comma">, </span><span title="Required" class="required">Object arg</span><span class="closeparen"> )</span><span class="colon"> : </span><span class="return">void</span><div class="mdesc"><div class="short">Deprecated load method using old method signature. See {@doRequest} for preferred method.</div><div class="long"><b>Deprecated</b> load method using old method signature. See {@doRequest} for preferred method.<div class="mdetail-params"><strong>Parameters:</strong><ul><li><code>params</code> : Object<div class="sub-desc"></div></li><li><code>reader</code> : Object<div class="sub-desc"></div></li><li><code>callback</code> : Object<div class="sub-desc"></div></li><li><code>scope</code> : Object<div class="sub-desc"></div></li><li><code>arg</code> : Object<div class="sub-desc"></div></li></ul><strong>Returns:</strong><ul><li>void</li></ul></div></div></div></td><td class="msource">DataProxy</td></tr><tr class="method-row expandable inherited"><td class="micon"><a href="#expand" class="exi"> </a></td><td class="sig"><a id="Ext.util.Observable-on"></a><b class="method"><a href="source/Observable.html#method-Ext.util.Observable-on">on</a></b><span class="openparen">( </span><span title="Required" class="required">String eventName</span><span class="comma">, </span><span title="Required" class="required">Function handler</span><span class="comma">, </span><span title="Optional" class="optional">[Object scope]</span><span class="comma">, </span><span title="Optional" class="optional">[Object options]</span><span class="closeparen"> )</span><span class="colon"> : </span><span class="return">void</span><div class="mdesc"><div class="short">Appends an event handler to this object (shorthand for addListener.)</div><div class="long">Appends an event handler to this object (shorthand for <a href="output/Ext.util.Observable.html#Ext.util.Observable-addListener" ext:member="addListener" ext:cls="Ext.util.Observable">addListener</a>.)<div class="mdetail-params"><strong>Parameters:</strong><ul><li><code>eventName</code> : String<div class="sub-desc">The type of event to listen for</div></li><li><code>handler</code> : Function<div class="sub-desc">The method the event invokes</div></li><li><code>scope</code> : Object<div class="sub-desc">(optional) The scope (<code><b>this</b></code> reference) in which the handler function is executed.
<b>If omitted, defaults to the object which fired the event.</b></div></li><li><code>options</code> : Object<div class="sub-desc">(optional) An object containing handler configuration.</div></li></ul><strong>Returns:</strong><ul><li>void</li></ul></div></div></div></td><td class="msource"><a href="output/Ext.util.Observable.html#on" ext:member="#on" ext:cls="Ext.util.Observable">Observable</a></td></tr><tr class="method-row expandable inherited"><td class="micon"><a href="#expand" class="exi"> </a></td><td class="sig"><a id="Ext.util.Observable-purgeListeners"></a><b class="method"><a href="source/Observable.html#method-Ext.util.Observable-purgeListeners">purgeListeners</a></b><span class="openparen">(</span><span class="closeparen">)</span><span class="colon"> : </span><span class="return">void</span><div class="mdesc"><div class="short">Removes all listeners for this object</div><div class="long">Removes all listeners for this object<div class="mdetail-params"><strong>Parameters:</strong><ul><li>None.</li></ul><strong>Returns:</strong><ul><li>void</li></ul></div></div></div></td><td class="msource"><a href="output/Ext.util.Observable.html#purgeListeners" ext:member="#purgeListeners" ext:cls="Ext.util.Observable">Observable</a></td></tr><tr class="method-row expandable inherited"><td class="micon"><a href="#expand" class="exi"> </a></td><td class="sig"><a id="Ext.util.Observable-relayEvents"></a><b class="method"><a href="source/Observable-more.html#method-Ext.util.Observable-relayEvents">relayEvents</a></b><span class="openparen">( </span><span title="Required" class="required">Object o</span><span class="comma">, </span><span title="Required" class="required">Array events</span><span class="closeparen"> )</span><span class="colon"> : </span><span class="return">void</span><div class="mdesc"><div class="short">Relays selected events from the specified Observable as if the events were fired by this.</div><div class="long">Relays selected events from the specified Observable as if the events were fired by <tt><b>this</b></tt>.<div class="mdetail-params"><strong>Parameters:</strong><ul><li><code>o</code> : Object<div class="sub-desc">The Observable whose events this object is to relay.</div></li><li><code>events</code> : Array<div class="sub-desc">Array of event names to relay.</div></li></ul><strong>Returns:</strong><ul><li>void</li></ul></div></div></div></td><td class="msource"><a href="output/Ext.util.Observable.html#relayEvents" ext:member="#relayEvents" ext:cls="Ext.util.Observable">Observable</a></td></tr><tr class="method-row expandable inherited"><td class="micon"><a href="#expand" class="exi"> </a></td><td class="sig"><a id="Ext.util.Observable-removeListener"></a><b class="method"><a href="source/Observable.html#method-Ext.util.Observable-removeListener">removeListener</a></b><span class="openparen">( </span><span title="Required" class="required">String eventName</span><span class="comma">, </span><span title="Required" class="required">Function handler</span><span class="comma">, </span><span title="Optional" class="optional">[Object scope]</span><span class="closeparen"> )</span><span class="colon"> : </span><span class="return">void</span><div class="mdesc"><div class="short">Removes an event handler.</div><div class="long">Removes an event handler.<div class="mdetail-params"><strong>Parameters:</strong><ul><li><code>eventName</code> : String<div class="sub-desc">The type of event the handler was associated with.</div></li><li><code>handler</code> : Function<div class="sub-desc">The handler to remove. <b>This must be a reference to the function passed into the <a href="output/Ext.util.Observable.html#Ext.util.Observable-addListener" ext:member="addListener" ext:cls="Ext.util.Observable">addListener</a> call.</b></div></li><li><code>scope</code> : Object<div class="sub-desc">(optional) The scope originally specified for the handler.</div></li></ul><strong>Returns:</strong><ul><li>void</li></ul></div></div></div></td><td class="msource"><a href="output/Ext.util.Observable.html#removeListener" ext:member="#removeListener" ext:cls="Ext.util.Observable">Observable</a></td></tr><tr class="method-row expandable "><td class="micon"><a href="#expand" class="exi"> </a></td><td class="sig"><a id="Ext.data.DataProxy-request"></a><b class="method"><a href="source/DataProxy.html#method-Ext.data.DataProxy-request">request</a></b><span class="openparen">( </span><span title="Required" class="required">String action</span><span class="comma">, </span><span title="Required" class="required">Ext.data.Record/Ext.data.Record[]/null rs</span><span class="comma">, </span><span title="Required" class="required">Object params</span><span class="comma">, </span><span title="Required" class="required">Ext.data.DataReader reader</span><span class="comma">, </span><span title="Required" class="required">Function callback</span><span class="comma">, </span><span title="Required" class="required">Object scope</span><span class="comma">, </span><span title="Required" class="required">Object options</span><span class="closeparen"> )</span><span class="colon"> : </span><span class="return">void</span><div class="mdesc"><div class="short">All proxy actions are executed through this method. Automatically fires the "before" + action event</div><div class="long">All proxy actions are executed through this method. Automatically fires the "before" + action event<div class="mdetail-params"><strong>Parameters:</strong><ul><li><code>action</code> : String<div class="sub-desc">Name of the action</div></li><li><code>rs</code> : Ext.data.Record/Ext.data.Record[]/null<div class="sub-desc">Will be null when action is 'load'</div></li><li><code>params</code> : Object<div class="sub-desc"></div></li><li><code>reader</code> : Ext.data.DataReader<div class="sub-desc"></div></li><li><code>callback</code> : Function<div class="sub-desc"></div></li><li><code>scope</code> : Object<div class="sub-desc">The scope (<code>this</code> reference) in which the callback function is executed. Defaults to the Proxy object.</div></li><li><code>options</code> : Object<div class="sub-desc">Any options specified for the action (e.g. see <a href="output/Ext.data.Store.html#Ext.data.Store-load" ext:member="load" ext:cls="Ext.data.Store">Ext.data.Store.load</a>.</div></li></ul><strong>Returns:</strong><ul><li>void</li></ul></div></div></div></td><td class="msource">DataProxy</td></tr><tr class="method-row expandable inherited"><td class="micon"><a href="#expand" class="exi"> </a></td><td class="sig"><a id="Ext.util.Observable-resumeEvents"></a><b class="method"><a href="source/Observable.html#method-Ext.util.Observable-resumeEvents">resumeEvents</a></b><span class="openparen">(</span><span class="closeparen">)</span><span class="colon"> : </span><span class="return">void</span><div class="mdesc"><div class="short">Resume firing events. (see suspendEvents)
If events were suspended using the queueSuspended parameter, then all
event...</div><div class="long">Resume firing events. (see <a href="output/Ext.util.Observable.html#Ext.util.Observable-suspendEvents" ext:member="suspendEvents" ext:cls="Ext.util.Observable">suspendEvents</a>)
If events were suspended using the <tt><b>queueSuspended</b></tt> parameter, then all
events fired during event suspension will be sent to any listeners now.<div class="mdetail-params"><strong>Parameters:</strong><ul><li>None.</li></ul><strong>Returns:</strong><ul><li>void</li></ul></div></div></div></td><td class="msource"><a href="output/Ext.util.Observable.html#resumeEvents" ext:member="#resumeEvents" ext:cls="Ext.util.Observable">Observable</a></td></tr><tr class="method-row expandable "><td class="micon"><a href="#expand" class="exi"> </a></td><td class="sig"><a id="Ext.data.DataProxy-setApi"></a><b class="method"><a href="source/DataProxy.html#method-Ext.data.DataProxy-setApi">setApi</a></b><span class="openparen">( </span><span title="Required" class="required">String/Object api</span><span class="comma">, </span><span title="Required" class="required">String/Function url</span><span class="closeparen"> )</span><span class="colon"> : </span><span class="return">void</span><div class="mdesc"><div class="short">Redefines the Proxy's API or a single action of an API. Can be called with two method signatures.
If called with an o...</div><div class="long"><p>Redefines the Proxy's API or a single action of an API. Can be called with two method signatures.</p>
<p>If called with an object as the only parameter, the object should redefine the <b>entire</b> API, e.g.:</p><pre><code>proxy.setApi({
read : <em>'/users/read'</em>,
create : <em>'/users/create'</em>,
update : <em>'/users/update'</em>,
destroy : <em>'/users/destroy'</em>
});</code></pre>
<p>If called with two parameters, the first parameter should be a string specifying the API action to
redefine and the second parameter should be the URL (or function if using DirectProxy) to call for that action, e.g.:</p><pre><code>proxy.setApi(Ext.data.Api.actions.read, <em>'/users/<b>new</b>_load_url'</em>);</code></pre><div class="mdetail-params"><strong>Parameters:</strong><ul><li><code>api</code> : String/Object<div class="sub-desc">An API specification object, or the name of an action.</div></li><li><code>url</code> : String/Function<div class="sub-desc">The URL (or function if using DirectProxy) to call for the action.</div></li></ul><strong>Returns:</strong><ul><li>void</li></ul></div></div></div></td><td class="msource">DataProxy</td></tr><tr class="method-row expandable inherited"><td class="micon"><a href="#expand" class="exi"> </a></td><td class="sig"><a id="Ext.util.Observable-suspendEvents"></a><b class="method"><a href="source/Observable.html#method-Ext.util.Observable-suspendEvents">suspendEvents</a></b><span class="openparen">( </span><span title="Required" class="required">Boolean queueSuspended</span><span class="closeparen"> )</span><span class="colon"> : </span><span class="return">void</span><div class="mdesc"><div class="short">Suspend the firing of all events. (see resumeEvents)</div><div class="long">Suspend the firing of all events. (see <a href="output/Ext.util.Observable.html#Ext.util.Observable-resumeEvents" ext:member="resumeEvents" ext:cls="Ext.util.Observable">resumeEvents</a>)<div class="mdetail-params"><strong>Parameters:</strong><ul><li><code>queueSuspended</code> : Boolean<div class="sub-desc">Pass as true to queue up suspended events to be fired
after the <a href="output/Ext.util.Observable.html#Ext.util.Observable-resumeEvents" ext:member="resumeEvents" ext:cls="Ext.util.Observable">resumeEvents</a> call instead of discarding all suspended events;</div></li></ul><strong>Returns:</strong><ul><li>void</li></ul></div></div></div></td><td class="msource"><a href="output/Ext.util.Observable.html#suspendEvents" ext:member="#suspendEvents" ext:cls="Ext.util.Observable">Observable</a></td></tr><tr class="method-row expandable inherited"><td class="micon"><a href="#expand" class="exi"> </a></td><td class="sig"><a id="Ext.util.Observable-un"></a><b class="method"><a href="source/Observable.html#method-Ext.util.Observable-un">un</a></b><span class="openparen">( </span><span title="Required" class="required">String eventName</span><span class="comma">, </span><span title="Required" class="required">Function handler</span><span class="comma">, </span><span title="Optional" class="optional">[Object scope]</span><span class="closeparen"> )</span><span class="colon"> : </span><span class="return">void</span><div class="mdesc"><div class="short">Removes an event handler (shorthand for removeListener.)</div><div class="long">Removes an event handler (shorthand for <a href="output/Ext.util.Observable.html#Ext.util.Observable-removeListener" ext:member="removeListener" ext:cls="Ext.util.Observable">removeListener</a>.)<div class="mdetail-params"><strong>Parameters:</strong><ul><li><code>eventName</code> : String<div class="sub-desc">The type of event the handler was associated with.</div></li><li><code>handler</code> : Function<div class="sub-desc">The handler to remove. <b>This must be a reference to the function passed into the <a href="output/Ext.util.Observable.html#Ext.util.Observable-addListener" ext:member="addListener" ext:cls="Ext.util.Observable">addListener</a> call.</b></div></li><li><code>scope</code> : Object<div class="sub-desc">(optional) The scope originally specified for the handler.</div></li></ul><strong>Returns:</strong><ul><li>void</li></ul></div></div></div></td><td class="msource"><a href="output/Ext.util.Observable.html#un" ext:member="#un" ext:cls="Ext.util.Observable">Observable</a></td></tr></tbody></table><a id="Ext.data.DataProxy-events"></a><h2>Public Events</h2><table cellspacing="0" class="member-table"><tbody><tr><th colspan="2" class="sig-header">Event</th><th class="msource-header">Defined By</th></tr><tr class="method-row expandable "><td class="micon"><a href="#expand" class="exi"> </a></td><td class="sig"><a id="Ext.data.DataProxy-beforeload"></a><b class="event"><a href="source/DataProxy.html#event-Ext.data.DataProxy-beforeload">beforeload</a></b><span class="colon"> : </span><span class="openparen">( </span><span title="Required" class="required">DataProxy this</span><span class="comma">, </span><span title="Required" class="required">Object params</span><span class="closeparen"> )</span><span> </span><div class="mdesc"><div class="short">Fires before a request to retrieve a data object.</div><div class="long">Fires before a request to retrieve a data object.<div class="mdetail-params"><strong style="font-weight: normal;">Listeners will be called with the following arguments:</strong><ul><li><code>this</code> : DataProxy<div class="sub-desc">The proxy for the request</div></li><li><code>params</code> : Object<div class="sub-desc">The params object passed to the <a href="output/Ext.data.DataProxy.html#Ext.data.DataProxy-request" ext:member="request" ext:cls="Ext.data.DataProxy">request</a> function</div></li></ul></div></div></div></td><td class="msource">DataProxy</td></tr><tr class="method-row expandable "><td class="micon"><a href="#expand" class="exi"> </a></td><td class="sig"><a id="Ext.data.DataProxy-beforewrite"></a><b class="event"><a href="source/DataProxy.html#event-Ext.data.DataProxy-beforewrite">beforewrite</a></b><span class="colon"> : </span><span class="openparen">( </span><span title="Required" class="required">DataProxy this</span><span class="comma">, </span><span title="Required" class="required">String action</span><span class="comma">, </span><span title="Required" class="required">Record/Record[] rs</span><span class="comma">, </span><span title="Required" class="required">Object params</span><span class="closeparen"> )</span><span> </span><div class="mdesc"><div class="short">Fires before a request is generated for one of the actions Ext.data.Api.actions.create|update|destroy
In addition to ...</div><div class="long"><p>Fires before a request is generated for one of the actions Ext.data.Api.actions.create|update|destroy</p>
<p>In addition to being fired through the DataProxy instance that raised the event, this event is also fired
through the Ext.data.DataProxy <i>class</i> to allow for centralized processing of beforewrite events from <b>all</b>
DataProxies by attaching a listener to the Ext.data.DataProxy class itself.</p><div class="mdetail-params"><strong style="font-weight: normal;">Listeners will be called with the following arguments:</strong><ul><li><code>this</code> : DataProxy<div class="sub-desc">The proxy for the request</div></li><li><code>action</code> : String<div class="sub-desc">[Ext.data.Api.actions.create|update|destroy]</div></li><li><code>rs</code> : Record/Record[]<div class="sub-desc">The Record(s) to create|update|destroy.</div></li><li><code>params</code> : Object<div class="sub-desc">The request <code>params</code> object. Edit <code>params</code> to add parameters to the request.</div></li></ul></div></div></div></td><td class="msource">DataProxy</td></tr><tr class="method-row expandable "><td class="micon"><a href="#expand" class="exi"> </a></td><td class="sig"><a id="Ext.data.DataProxy-exception"></a><b class="event"><a href="source/DataProxy.html#event-Ext.data.DataProxy-exception">exception</a></b><span class="colon"> : </span><span class="openparen">( </span><span title="Required" class="required">DataProxy this</span><span class="comma">, </span><span title="Required" class="required">String type</span><span class="comma">, </span><span title="Required" class="required">String action</span><span class="comma">, </span><span title="Required" class="required">Object options</span><span class="comma">, </span><span title="Required" class="required">Object response</span><span class="comma">, </span><span title="Required" class="required">Mixed arg</span><span class="closeparen"> )</span><span> </span><div class="mdesc"><div class="short">Fires if an exception occurs in the Proxy during a remote request. This event is relayed
through a corresponding Ext....</div><div class="long"><p>Fires if an exception occurs in the Proxy during a remote request. This event is relayed
through a corresponding <a href="output/Ext.data.Store.html" ext:cls="Ext.data.Store">Ext.data.Store</a>.<a href="output/Ext.data.Store.html#Ext.data.Store-exception" ext:member="exception" ext:cls="Ext.data.Store">exception</a>,
so any Store instance may observe this event.</p>
<p>In addition to being fired through the DataProxy instance that raised the event, this event is also fired
through the Ext.data.DataProxy <i>class</i> to allow for centralized processing of exception events from <b>all</b>
DataProxies by attaching a listener to the Ext.data.DataProxy class itself.</p>
<p>This event can be fired for one of two reasons:</p>
<div class="mdetail-params"><ul>
<li>remote-request <b>failed</b> : <div class="sub-desc">
The server did not return status === 200.
</div></li>
<li>remote-request <b>succeeded</b> : <div class="sub-desc">
The remote-request succeeded but the reader could not read the response.
This means the server returned data, but the configured Reader threw an
error while reading the response. In this case, this event will be
raised and the caught error will be passed along into this event.
</div></li>
</ul></div>
<br><p>This event fires with two different contexts based upon the 2nd
parameter <tt>type [remote|response]</tt>. The first four parameters
are identical between the two contexts -- only the final two parameters
differ.</p><div class="mdetail-params"><strong style="font-weight: normal;">Listeners will be called with the following arguments:</strong><ul><li><code>this</code> : DataProxy<div class="sub-desc">The proxy that sent the request</div></li><li><code>type</code> : String<div class="sub-desc"><p>The value of this parameter will be either <tt>'response'</tt> or <tt>'remote'</tt>.</p>
<div class="mdetail-params"><ul>
<li><b><tt>'response'</tt></b> : <div class="sub-desc">
<p>An <b>invalid</b> response from the server was returned: either 404,
500 or the response meta-data does not match that defined in the DataReader
(e.g.: root, idProperty, successProperty).</p>
</div></li>
<li><b><tt>'remote'</tt></b> : <div class="sub-desc">
<p>A <b>valid</b> response was returned from the server having
successProperty === false. This response might contain an error-message
sent from the server. For example, the user may have failed
authentication/authorization or a database validation error occurred.</p>
</div></li>
</ul></div></div></li><li><code>action</code> : String<div class="sub-desc">Name of the action (see <a href="output/Ext.data.Api.html#Ext.data.Api-actions" ext:member="actions" ext:cls="Ext.data.Api">Ext.data.Api.actions</a>.</div></li><li><code>options</code> : Object<div class="sub-desc">The options for the action that were specified in the <a href="output/Ext.data.DataProxy.html#Ext.data.DataProxy-request" ext:member="request" ext:cls="Ext.data.DataProxy">request</a>.</div></li><li><code>response</code> : Object<div class="sub-desc"><p>The value of this parameter depends on the value of the <code>type</code> parameter:</p>
<div class="mdetail-params"><ul>
<li><b><tt>'response'</tt></b> : <div class="sub-desc">
<p>The raw browser response object (e.g.: XMLHttpRequest)</p>
</div></li>
<li><b><tt>'remote'</tt></b> : <div class="sub-desc">
<p>The decoded response object sent from the server.</p>
</div></li>
</ul></div></div></li><li><code>arg</code> : Mixed<div class="sub-desc"><p>The type and value of this parameter depends on the value of the <code>type</code> parameter:</p>
<div class="mdetail-params"><ul>
<li><b><tt>'response'</tt></b> : Error<div class="sub-desc">
<p>The JavaScript Error object caught if the configured Reader could not read the data.
If the remote request returns success===false, this parameter will be null.</p>
</div></li>
<li><b><tt>'remote'</tt></b> : Record/Record[]<div class="sub-desc">
<p>This parameter will only exist if the <tt>action</tt> was a <b>write</b> action
(Ext.data.Api.actions.create|update|destroy).</p>
</div></li>
</ul></div></div></li></ul></div></div></div></td><td class="msource">DataProxy</td></tr><tr class="method-row expandable "><td class="micon"><a href="#expand" class="exi"> </a></td><td class="sig"><a id="Ext.data.DataProxy-load"></a><b class="event"><a href="source/DataProxy.html#event-Ext.data.DataProxy-load">load</a></b><span class="colon"> : </span><span class="openparen">( </span><span title="Required" class="required">DataProxy this</span><span class="comma">, </span><span title="Required" class="required">Object o</span><span class="comma">, </span><span title="Required" class="required">Object options</span><span class="closeparen"> )</span><span> </span><div class="mdesc"><div class="short">Fires before the load method's callback is called.</div><div class="long">Fires before the load method's callback is called.<div class="mdetail-params"><strong style="font-weight: normal;">Listeners will be called with the following arguments:</strong><ul><li><code>this</code> : DataProxy<div class="sub-desc">The proxy for the request</div></li><li><code>o</code> : Object<div class="sub-desc">The request transaction object</div></li><li><code>options</code> : Object<div class="sub-desc">The callback's <tt>options</tt> property as passed to the <a href="output/Ext.data.DataProxy.html#Ext.data.DataProxy-request" ext:member="request" ext:cls="Ext.data.DataProxy">request</a> function</div></li></ul></div></div></div></td><td class="msource">DataProxy</td></tr><tr class="method-row expandable "><td class="micon"><a href="#expand" class="exi"> </a></td><td class="sig"><a id="Ext.data.DataProxy-loadexception"></a><b class="event"><a href="source/DataProxy.html#event-Ext.data.DataProxy-loadexception">loadexception</a></b><span class="colon"> : </span><span class="openparen">( </span><span title="Required" class="required">misc misc</span><span class="closeparen"> )</span><span> </span><div class="mdesc"><div class="short">This event is deprecated. The signature of the loadexception event
varies depending on the proxy, use the catch-all ...</div><div class="long"><p>This event is <b>deprecated</b>. The signature of the loadexception event
varies depending on the proxy, use the catch-all <a href="output/Ext.data.DataProxy.html#Ext.data.DataProxy-exception" ext:member="exception" ext:cls="Ext.data.DataProxy">exception</a> event instead.
This event will fire in addition to the <a href="output/Ext.data.DataProxy.html#Ext.data.DataProxy-exception" ext:member="exception" ext:cls="Ext.data.DataProxy">exception</a> event.</p><div class="mdetail-params"><strong style="font-weight: normal;">Listeners will be called with the following arguments:</strong><ul><li><code>misc</code> : misc<div class="sub-desc">See <a href="output/Ext.data.DataProxy.html#Ext.data.DataProxy-exception" ext:member="exception" ext:cls="Ext.data.DataProxy">exception</a>.</div></li></ul></div></div></div></td><td class="msource">DataProxy</td></tr><tr class="method-row expandable "><td class="micon"><a href="#expand" class="exi"> </a></td><td class="sig"><a id="Ext.data.DataProxy-write"></a><b class="event"><a href="source/DataProxy.html#event-Ext.data.DataProxy-write">write</a></b><span class="colon"> : </span><span class="openparen">( </span><span title="Required" class="required">DataProxy this</span><span class="comma">, </span><span title="Required" class="required">String action</span><span class="comma">, </span><span title="Required" class="required">Object data</span><span class="comma">, </span><span title="Required" class="required">Object response</span><span class="comma">, </span><span title="Required" class="required">Record/Record[] rs</span><span class="comma">, </span><span title="Required" class="required">Object options</span><span class="closeparen"> )</span><span> </span><div class="mdesc"><div class="short">Fires before the request-callback is called
In addition to being fired through the DataProxy instance that raised the...</div><div class="long"><p>Fires before the request-callback is called</p>
<p>In addition to being fired through the DataProxy instance that raised the event, this event is also fired
through the Ext.data.DataProxy <i>class</i> to allow for centralized processing of write events from <b>all</b>
DataProxies by attaching a listener to the Ext.data.DataProxy class itself.</p><div class="mdetail-params"><strong style="font-weight: normal;">Listeners will be called with the following arguments:</strong><ul><li><code>this</code> : DataProxy<div class="sub-desc">The proxy that sent the request</div></li><li><code>action</code> : String<div class="sub-desc">[Ext.data.Api.actions.create|upate|destroy]</div></li><li><code>data</code> : Object<div class="sub-desc">The data object extracted from the server-response</div></li><li><code>response</code> : Object<div class="sub-desc">The decoded response from server</div></li><li><code>rs</code> : Record/Record[]<div class="sub-desc">The Record(s) from Store</div></li><li><code>options</code> : Object<div class="sub-desc">The callback's <tt>options</tt> property as passed to the <a href="output/Ext.data.DataProxy.html#Ext.data.DataProxy-request" ext:member="request" ext:cls="Ext.data.DataProxy">request</a> function</div></li></ul></div></div></div></td><td class="msource">DataProxy</td></tr></tbody></table></div>
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