jQuery EasyUI App - Create a CRUD data grid

jQuery EasyUI App - Create CRUD DataGrid

In the Create CRUD app section, you've learned how to create and edit a user's information by creating a CRUD app from a dialog component.

In this section, we'll show you how to create a CRUD data grid. g-in to do these CRUD operations.

Step 1: Define a data grid in an HTML tag (DataGrid)

<table id="dg" title="My Users" style="width:550px;height:250px"  
                 toolbar="#toolbar" idField="id"  rownumbers="true" fitColumns="true" singleSelect="true">
	<thead>
		<tr>
			<th field="firstname" width="50" editor="{type:'validatebox',options:{required:true}}">First Name</th>
			<th field="lastname" width="50" editor="{type:'validatebox',options:{required:true}}">Last Name</th>
			<th field="phone" width="50" editor="text">Phone</th>
			<th field="email" width="50" editor="{type:'validatebox',options:{validType:'email'}}">Email</th>
		</tr>
	</thead>
</table>
<div id="toolbar">
	<a href="#" class="easyui-linkbutton" iconCls="icon-add" plain="true" onclick="javascript:$('#dg').edatagrid('addRow')">New</a>
	<a href="#" class="easyui-linkbutton" iconCls="icon-remove" plain="true" onclick="javascript:$('#dg').edatagrid('destroyRow')">Destroy</a>
	<a href="#" class="easyui-linkbutton" iconCls="icon-save" plain="true" onclick="javascript:$('#dg').edatagrid('saveRow')">Save</a>
	<a href="#" class="easyui-linkbutton" iconCls="icon-undo" plain="true" onclick="javascript:$('#dg').edatagrid('cancelRow')">Cancel</a>
</div>

Step 2: Use an editable data grid (DataGrid)

$('#dg').edatagrid({
	url: 'get_users.php',
	saveUrl: 'save_user.php',
	updateUrl: 'update_user.php',
	destroyUrl: 'destroy_user.php'
});

We edit the DataGrid properties through the 'url', 'saveUrl', 'updateUrl' and 'destroyUrl' properties, which work as follows:

• url: Retrieving user data from the server side.
• SaveUrl: Save a new user data.
• UpdateUrl: Update an existing user data.
• destroyUrl: Delete an existing user data.

Step 3: Write server processing code

Save a new user (save_user.php):

$firstname = $_REQUEST['firstname'];
$lastname = $_REQUEST['lastname'];
$phone = $_REQUEST['phone'];
$email = $_REQUEST['email'];

include 'conn.php';

$sql = "insert into users(firstname,lastname,phone,email) values('$firstname','$lastname','$phone','$email')";
@mysql_query($sql);
echo json_encode(array(
	'id' => mysql_insert_id(),
	'firstname' => $firstname,
	'lastname' => $lastname,
	'phone' => $phone,
	'email' => $email
));

Update an existing user (update_user.php):

$id = intval($_REQUEST['id']);
$firstname = $_REQUEST['firstname'];
$lastname = $_REQUEST['lastname'];
$phone = $_REQUEST['phone'];
$email = $_REQUEST['email'];

include 'conn.php';

$sql="update users set firstname='$firstname',lastname='$lastname',phone='$phone',email='$email' where id=$id";
@mysql_query($sql);
echo json_encode(array(
	'id' => $id,
	'firstname' => $firstname,
	'lastname' => $lastname,
	'phone' => $phone,
	'email' => $email
));

Delete an existing user (destroy_user.php):

$id = intval($_REQUEST['id']);

include 'conn.php';

$sql = "delete from users where id=$id";
@mysql_query($sql);
echo json_encode(array('success'=>true));

Download the jQuery EasyUI instance

jeasyui-app-crud2.zip