在zend框架中调用其他控制器的成员函数?

问题描述

是否可以在zend框架中调用另一个控制器的成员函数，如果是，那么如何?

Is it possible to call the member function of another controller in zend framework, if yes then how?

<?php
class FirstController extends Zend_Controller_Action {
    public function indexAction() {
         // general action 
    }   

    public function memberFunction() {
         // a resuable function
    }
}

这是另一个控制器

<?php
class SecondController extends Zend_Controller_Action {
    public indexAction() {
         // here i need to call memberFunction() of FirstController
    }
}

请解释我如何从第二个控制器访问 memberFunction().

Please explain how i can access memberFunction() from second controller.

更好的想法是定义一个 AppController 并使所有常用控制器扩展 AppController，从而进一步扩展 Zend_Controller_Action.

Better idea is to define a AppController and make all usual controllers to extend AppController which further extends Zend_Controller_Action.

class AppController extends Zend_Controller_Action {
    public function memberFunction() {
         // a resuable function
    }
}

class FirstController extends AppController {
    public function indexAction() {
         // call function from any child class
         $this->memberFunction();
    } 
}

现在 memberFunction 可以从扩展 AppController 的控制器调用，作为简单继承的规则.

Now memberFunction can be invoked from controllers extending AppController as a rule of simple inheritance.

推荐答案

控制器并非旨在以这种方式使用.如果您想在当前控制器之后执行另一个控制器的动作，请使用_forward()方法:

Controllers aren't designed to be used in that way. If you want to execute an action of the other controller after your current controller, use the _forward() method:

// Invokes SecondController::otherActionAction() after the current action has been finished.
$this->_forward('other-action', 'second');

请注意，这只适用于操作方法(memberAction")，不适用于任意成员函数！

Note that this only works for action methods ("memberAction"), not arbitrary member functions!

如果 SecondController::memberFunction() 做了一些跨多个控制器需要的事情，把代码放在一个动作助手或库类中，这样两个控制器就可以访问共享的功能而不必依赖互相依赖.

If SecondController::memberFunction() does something that is needed across multiple controllers, put that code in a action helper or library class, so that both controllers can access the shared functionality without having to depend on each other.

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