71 lines
2.9 KiB
HTML
71 lines
2.9 KiB
HTML
<html>
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
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<title>Grid with DataWriter Example</title>
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<link rel="stylesheet" type="text/css" href="../../resources/css/ext-all.css" />
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<!-- GC -->
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<!-- LIBS -->
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<script type="text/javascript" src="../../adapter/ext/ext-base.js"></script>
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<!-- ENDLIBS -->
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<script type="text/javascript" src="../../ext-all.js"></script>
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<script type="text/javascript" src="../shared/extjs/App.js"></script>
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<script type="text/javascript" src="writer.js"></script>
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<script type="text/javascript" src="UserForm.js"></script>
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<script type="text/javascript" src="UserGrid.js"></script>
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<!-- Common Styles for the examples -->
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<link rel="stylesheet" type="text/css" href="../shared/examples.css" />
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<link rel="stylesheet" type="text/css" href="../shared/icons/silk.css" />
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</head>
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<body>
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<script type="text/javascript" src="../shared/examples.js"></script><!-- EXAMPLES -->
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<h1>Ext.data.DataWriter Example</h1>
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<p>This example shows how to implement a Writer for your Store. A Writer-enabled Store frees you from having to manually compose Ajax requests
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to perform CRUD actions on a Store.</p>
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<p>Note that the js is not minified so it is readable. See <a href="writer.js">writer.js</a>, <a href="UserForm.js">UserForm.js</a> and
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<a href="UserGrid.js">UserGrid.js</a>.</p>
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<p>The HttpProxy plugged into the store in this example uses the new <em>api</em> configuration instead of an <em>url</em>.
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A simple MVC-like php backend has been created for this example which simulates a database by storing records in $_SESSION. See the file /remote/app/controllers/users.php. You may have to configure
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your web-server to allow scripts to be executed in the /examples directory.</p>
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<code><pre>
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var proxy = new Ext.data.HttpProxy({
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api: {
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read : 'app.php/users/read',
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create : 'app.php/users/create',
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update : 'app.php/users/update',
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destroy : 'app.php/users/destroy'
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}
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});
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</pre></code>
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<p>Take note of the requests being generated in Firebug as you interact with the Grid and Form.</p>
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<p>An <b>Error has been simulated</b> on the server-side: Attempting to update a record having ODD-numbered id will generate this errror.
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Responses from the update action will have successProperty === false along with a message. This error can be handled by
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listening to the <b>"exception"</b> event upon your Store.</p>
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<code><pre>
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exception : function(proxy, type, action, options, res, arg) {
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if (type === 'remote') {
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Ext.Msg.show({
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title: 'REMOTE EXCEPTION',
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msg: res.message,
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icon: Ext.MessageBox.ERROR
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});
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}
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}
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</pre></code>
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<p><b>Note: This new "exception" event supercedes the old loadexception event which is now deprecated.</b></p>
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<div class="container" style="width:500px">
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<div id="user-form"></div>
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<div id="user-grid"></div>
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</div>
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</body>
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</html>
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