| 1 | <html> |
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| 2 | <head> |
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| 3 | <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"> |
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| 4 | <title>Grid with DataWriter Example</title> |
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| 5 | |
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| 6 | <link rel="stylesheet" type="text/css" href="../../resources/css/ext-all.css" /> |
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| 7 | |
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| 8 | <!-- GC --> |
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| 9 | <!-- LIBS --> |
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| 10 | <script type="text/javascript" src="../../adapter/ext/ext-base.js"></script> |
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| 11 | <!-- ENDLIBS --> |
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| 12 | |
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| 13 | <script type="text/javascript" src="../../ext-all.js"></script> |
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| 14 | <script type="text/javascript" src="../shared/extjs/App.js"></script> |
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| 15 | <script type="text/javascript" src="writer.js"></script> |
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| 16 | <script type="text/javascript" src="UserForm.js"></script> |
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| 17 | <script type="text/javascript" src="UserGrid.js"></script> |
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| 18 | |
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| 19 | <!-- Common Styles for the examples --> |
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| 20 | <link rel="stylesheet" type="text/css" href="../shared/examples.css" /> |
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| 21 | <link rel="stylesheet" type="text/css" href="../shared/icons/silk.css" /> |
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| 22 | </head> |
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| 23 | <body> |
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| 24 | <script type="text/javascript" src="../shared/examples.js"></script><!-- EXAMPLES --> |
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| 25 | <h1>Ext.data.DataWriter Example</h1> |
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| 26 | <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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| 27 | to perform CRUD actions on a Store.</p> |
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| 28 | <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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| 29 | <a href="UserGrid.js">UserGrid.js</a>.</p> |
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| 30 | |
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| 31 | <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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| 32 | 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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| 33 | your web-server to allow scripts to be executed in the /examples directory.</p> |
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| 34 | |
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| 35 | <code><pre> |
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| 36 | var proxy = new Ext.data.HttpProxy({ |
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| 37 | api: { |
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| 38 | read : 'app.php/users/read', |
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| 39 | create : 'app.php/users/create', |
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| 40 | update : 'app.php/users/update', |
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| 41 | destroy : 'app.php/users/destroy' |
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| 42 | } |
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| 43 | }); |
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| 44 | </pre></code> |
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| 45 | |
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| 46 | <p>Take note of the requests being generated in Firebug as you interact with the Grid and Form.</p> |
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| 47 | |
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| 48 | <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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| 49 | Responses from the update action will have successProperty === false along with a message. This error can be handled by |
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| 50 | listening to the <b>"exception"</b> event upon your Store.</p> |
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| 51 | |
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| 52 | <code><pre> |
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| 53 | exception : function(proxy, type, action, options, res, arg) { |
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| 54 | if (type === 'remote') { |
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| 55 | Ext.Msg.show({ |
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| 56 | title: 'REMOTE EXCEPTION', |
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| 57 | msg: res.message, |
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| 58 | icon: Ext.MessageBox.ERROR |
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| 59 | }); |
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| 60 | } |
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| 61 | } |
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| 62 | </pre></code> |
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| 63 | <p><b>Note: This new "exception" event supercedes the old loadexception event which is now deprecated.</b></p> |
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| 64 | |
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| 65 | <div class="container" style="width:500px"> |
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| 66 | <div id="user-form"></div> |
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| 67 | <div id="user-grid"></div> |
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| 68 | </div> |
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| 69 | |
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| 70 | </body> |
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| 71 | </html> |
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