ZF2:将事件附加到另一个控制器的Action并获取服务定位器 [英] ZF2: Attach event to another Controller's Action and get Service Locator
问题描述
在A模块的LoginController的LoginAction中,我已经写了
$ this-> getEventManager() - > trigger('checkme.post',null,array('user_id'=> $ userData-> usydstudentid));
在B模块的Module.php中,在Bootstrap方法中,我给了
$ loginController = new B\Controller\LoginController();
$ sharedEventManager-> attach('A\Controller\LoginController','checkme.post',array($ loginController,'LoginAction'),100);
在LoginController的B模块的LoginAction中,我可以访问数据,但是无法访问服务管理器命令获取模块的配置。当我尝试使用
$ this-> getServiceLocator() - > get('Config');
我收到错误
调用非对象的成员函数get()
换句话说,我想触发一个事件从一个控制器的方法和附加到另一个控制器的方法。听后,从该事件获取数据,我想获取模块的配置。请在这方面帮忙。
首先,你不应该这样使用事件和控制器。你的控制器从B不是一个控制器,但你应该把它放在一个服务层。
然后,服务定位器必须被注入。如果您执行 $ controller = new SomeController
此服务定位器不会被注入。因此,从它获取任何对象将失败。您应该使用控制器加载器来获取控制器。
所以不是这样的:
$ loginController = new B\Controller\LoginController();
$ sharedEventManager-> attach('A\Controller\LoginController',
'checkme.post',
数组($ loginController,'LoginAction'),
100);
您应该写下来:
// $ sl是服务定位器的实例
//例如$ sl = $ e-> getApplication() - > getServiceManager();
//其中$ e是onBootstrap()方法的事件
$ loader = $ sl-> get('ControllerLoader');
$ loginController = $ loader-> get('B\Controller\LoginController');
$ sharedEventManager-> attach('A\Controller\LoginController',
'checkme.post',
数组($ loginController,'LoginAction'),
100);
但是如上所述,在控制器中触发一个动作,这样与事件不是一个好办法去做吧。您可以使用控制器插件(例如控制器插件)转发
或(正如我之前所说)更好地调度它,从控制器的LoginAction中删除逻辑,并将其定位在服务类或其中。
I am new to Zend Framework 2. I have two modules 'A' and 'B'. I trigger an event in LoginController's LoginAction of "A" module. I want to attach LoginController's LoginAction or LoginController's testMe() method.
In "A" module's LoginController's LoginAction, I have written
$this->getEventManager()->trigger('checkme.post', null, array('user_id' => $userData->usydstudentid));
In Module.php of "B" module, in on Bootstrap method, I have given
$loginController = new B\Controller\LoginController();
$sharedEventManager->attach('A\Controller\LoginController', 'checkme.post', array($loginController, 'LoginAction'), 100);
In LoginController's LoginAction of "B" module, I can access data but I can not access service manager in order to get module' config. When I try to use
$this->getServiceLocator()->get('Config');
I get error
Call to a member function get() on a non-object
In other words, I want to trigger an event from one controller's method and attach to another controller's method. After listening, getting data from that event, I want to get module's config. Please help in this regard.
First of all, you shouldn't use events and controllers this way. Your controller from B isn't a controller, but you should put that one rather in a service layer.
Then, the service locator must be injected. If you do $controller = new SomeController
this service locator is not injected. Thus, fetching any object from it will fail. What you should do is using the controller loader to get the controller.
So instead of this:
$loginController = new B\Controller\LoginController();
$sharedEventManager->attach('A\Controller\LoginController',
'checkme.post',
array($loginController, 'LoginAction'),
100);
You should write this:
// $sl is instance of Service Locator
// E.g. $sl = $e->getApplication()->getServiceManager();
// Where $e is the event from the onBootstrap() method
$loader = $sl->get('ControllerLoader');
$loginController = $loader->get('B\Controller\LoginController');
$sharedEventManager->attach('A\Controller\LoginController',
'checkme.post',
array($loginController, 'LoginAction'),
100);
But as said, triggering an action in a controller this way with events isn't realy a good way to do it. You better dispatch it with for example the controller plugin Forward
or (as I said it before), remove the logic from the controller's LoginAction and locate it in a service class or something.
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