ZF2:在对象上下文中使用$ this当访问控制器内的其他方法时 [英] ZF2: Using $this when not in object context When accessing other method inside controller
问题描述
根据 ZF2:将事件附加到另一个控制器的Action并获取服务定位器,我将一个事件附加到控制器的操作上,如下所示
Based on reply from ZF2: Attach event to another Controller's Action and get Service Locator, I am attaching an event to a controller's action like this
$loader = $sl->get('ControllerLoader');
$loginController = $loader->get('B\Controller\LoginController');
$sharedEventManager->attach('A\Controller\LoginController',
'checkme.post',
array($loginController, 'loginAction'),
100);
当事件触发时,它进入loginAction的B控制器。当我尝试调用B\LoginController的其他方法时,在loginAction里面,我收到一个错误
When event fire, It goes inside loginAction of "B"'s controller. Inside loginAction when I try to call other method of B\LoginController, then I get an error of
致命错误:使用$ this不在
中的对象上下文C:\wampp\www\Zend2\module\B\src\B\Controller\LoginController.php
Blockquote
第60行
Fatal error: Using $this when not in object context in C:\wampp\www\Zend2\module\B\src\B\Controller\LoginController.php Blockquote on line 60
控制代码:
<?php
namespace B\Controller;
use Zend\Mvc\Controller\AbstractActionController;
use Zend\Soap\Client;
class LoginController extends AbstractActionController {
public function loginAction($e) {
$user_id = $e->getParam('user_id');
$config = $e->getParam('config');
if($user_id){
$client = $this->getSoapClient($config);
$params = $this->enrolmentRequestParams($user_id);
$response = $client->getEnrolment($params);
$course_enrolment = $response->enrolment_list->value->course_enrolment_list->course_enrolment;
$this->processEnrolmentData($course_enrolment);
}
}
public function getSoapClient($config){
$options = array(
'soap_version'=> $config['webservice_config']['soap_version'],
'location' => $config['webservice_config']['location']
);
$wsdl = $config['webservice_config']['wsdl'];
$client = new \Zend\Soap\Client($wsdl, $options);
return $client;
}
public function processEnrolmentData($course_enrolment){
foreach($course_enrolment as $ce){
// some code here
}
}
public function enrolmentLookUp($e){
//some code here
}
public function enrolmentRequestParams($sid){
//some code here
}
public function emptyObject($theObject){
$tmp = (array) $theObject;
if(empty($tmp)) {
return true;
}else{
return false;
}
}
public function validVal($uos){
if(!empty($uos) && !is_null($uos) && isset($uos)){
return true;
}else{
return false;
}
}
public function getSemesterNo($value){
return preg_replace("/[^0-9]/","",$value);
}
}
?>
请在这方面帮忙。
推荐答案
如果您将数组作为回调传递,则该类方法称为静态方式(即相当于您执行的LoginController ::则loginAction(e)中
)。没有 $ this
,因为该类的实例上没有调用该函数。
If you pass an array as the callback, the class method is called statically (i.e. equivalent to you doing LoginController::loginAction(e)
). There is no $this
, because the function is not being called on an instance of the class.
它看起来像你在控制器类中的大部分逻辑一样不应该在控制器中。我建议将其移动到一个单独的类,然后您可以调整以更好地处理静态方法调用。
It looks like most of the logic you have in the controller class shouldn't be in a controller at all. I'd suggest moving it to a separate class which you can then adjust to better handle static method calls.
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