Wordpress admin ajax

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Wordpress 中使用 Ajax,由于请求地址有点特殊,在Wordpress中Ajax需要自己定义一个方法,注册到admin-ajax.php中使用,方法如下

添加自定义函数到function.php,查询语句可以改成wordpres封装好的写法,以下查询只用演示用

function application_select_manufacturer() {
	global $wpdb;
	$id = '';
	if( isset($_GET['action'])&& $_GET['action'] == 'application_select_manufacturer'){
		$id = $_GET['id'] ;
		$result = $wpdb->get_results("SELECT MANUFACTURER FROM _cwcustom_table WHERE DEVICE_TYPE_ID='".$id."'");
		$return_code = '<option value="" selected="">Please Select One</option>';
		global $previous_tableName;
		$previous_tableName = '';
		foreach ( $result as $table ){
			foreach ($table as $tableName){
				if($previous_tableName != $tableName){
					$return_code .= '<option value="'.$tableName.'">'.$tableName.'</option>';
				}
				$previous_tableName = $tableName;
			}
		}
		echo $return_code;
	}
	die();
}

将函数添加到 WordPress admin-ajax.php 接口中

//放在function.php即可
add_action( 'wp_ajax_application_select_manufacturer', 'application_select_manufacturer' );
add_action("wp_ajax_nopriv_application_select_manufacturer", "application_select_manufacturer");

AJAX查询,这里只写ajax部分,忽略获取参数及事件触发

$.ajax({
	url: '<?php echo admin_url( "admin-ajax.php" )?>?action=application_select_manufacturer&id='+$(this).val(),
	datatype: "json",
	type: 'post',
	success: function (data) {  
	select_device.parent().find('select.select_manufacturer').html(data);
    }
})

 

更新于:2015-09-29 01:44:28

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