我正在设置一些Ajax服务。所有这些都需要登录，所以我将挂钩连接到了“wp\\uajax\\u[$服务]”。问题是，当我调用这些服务时，只得到一个“0”响应。我的php错误日志中也没有任何记录。
我想知道的是：
有没有办法钩住所有Ajax请求并将一些调试信息转储到日志文件中，这样我就可以了解更多的信息更新：
包括代码以提供更多上下文。首先是Javascript，它是：
ServiceCall ( \'get-action-template\' , {\'action\' : action} , function(response) {// callback function});
ServiceCall函数为：
function ServiceCall ( service , parameters , callback ) {
console.log (\'getTemplate was called: (\' + service +\', \' + parameters + \')\' );
//initialise a request object
var requestObj = {};
requestObj.response = \'ajax-response\';
requestObj.type = \'POST\';
requestObj.url = my_config[\'ajax-service-list\'][service][\'url\'];
requestObj.data = $.extend ( requestObj.data , {
\'service\': service,
\'request_parameters\': JSON.stringify(parameters),
\'ajax_nonce\': my_config[\'ajax-service-list\'][service][\'nonce\']
});
requestObj.global = false;
requestObj.timeout = 30000;
requestObj.success = function ( r ) {
alert ( "Success: " + JSON.stringify (r) );
callback ( r );
}
requestObj.error = function ( r ) {
console.log ("FAILURE WITH AJAX Call ( " + JSON.stringify (r) + ")");
}
$.ajax( requestObj );
}
然后生成以下消息（取自浏览器调试器中的网络面板）：
最后，这里是处理程序函数的代码（从未被调用）：
public static function ajax_handler () {
error_log ( "AJAX HANDLE" );
$service = $_POST[\'action\'];
$request_parameters = json_decode ($_POST[\'request_parameters\']);
if ( LG_Utility::key_from_hash ( self::$services_list , $service , false ) ) {
$object = new self::$services_list[$service][\'class\'] ($service);
$object->handle( $service , $request_parameters );
} else {
if (class_exists (\'AppLogger\') ) AppLogger::error ( "Trying to handle a service ({$service}) which is not registered!");
}
}
但是，我已经验证了它是否正确连接到wp\\u ajax\\u get-action-template事件。简写的“证明”是使用流行的“调试对象”插件，我能够验证它是否已设置。下面是管理AJAX事务的整个PHP类（为了简洁起见，删除了一些方法/常量）：
class LG_AjaxServiceManager
{
private static $services_list = array(
\'get-action-template\' => array ( \'class\' => \'LG_GetActionTemplate\' , \'login_required\' => true ),
\'some-other-service\' => array ( \'class\' => \'LG_FooBar\' , \'login_required\' => false )
);
public static function add_listeners () {
foreach ( self::$services_list as $id => $service ) {
add_action ( \'wp_ajax_\' . $id , \'LG_AjaxServiceManager::ajax_handler\' );
if (class_exists (\'AppLogger\') ) AppLogger::log ( "Registering $id as an Ajax service" );
}
}
public static function ajax_localize () {
// add hook for script localisation; this is important so that JS scripts have nonce and URL information
foreach ( self::$services_list as $id => $service ) {
$service_url = wp_nonce_url ( admin_url ( \'admin-ajax.php?action="\' . $id .\'"\' ) , self::AJAX_APP_NONCE_KEY . \'_\' . $id );
preg_match ( \'/.*action=%22(.*)%22&_wpnonce=(.*)/\' , $service_url , $service_parts );
self::$ajax_js_array [ $service_parts[1] ] = array ( \'nonce\' => $service_parts[2] , \'url\' => esc_url ( $service_url ) );
}
$localize = array (
\'SiteURL\' => get_bloginfo (\'url\'),
\'AjaxURL\' => admin_url (\'admin-ajax.php\'),
\'ajax-service-list\' => self::$ajax_js_array
);
wp_enqueue_script ( \'jquery\' );
wp_enqueue_script ( self::JS_FILE_HANDLE , plugins_url ( \'/js/lg-ajax-client.js\' , dirname(__FILE__)) , \'jquery\' );
wp_localize_script( self::JS_FILE_HANDLE , self::JS_NAMESPACE , $localize );
}
public static function ajax_handler () {
error_log ( "AJAX HANDLE" );
$service = $_POST[\'action\'];
$request_parameters = json_decode ($_POST[\'request_parameters\']);
if ( LG_Utility::key_from_hash ( self::$services_list , $service , false ) ) {
$object = new self::$services_list[$service][\'class\'] ($service);
$object->handle( $service , $request_parameters );
} else {
if (class_exists (\'AppLogger\') ) AppLogger::error ( "Trying to handle a service ({$service}) which is not registered!");
}
}
}
