Magento：如何覆盖Mage_Core_Controller_Front_Action [英] Magento: How to Override Mage_Core_Controller_Front_Action

问题描述

我想覆写 Mage_Core_Controller_Front_Action ，为所有前端控制器操作添加ACL检查，类似于在中执行的方式Mage_Adminhtml_Controller_Action： ：preDispatch（）使用 Mage_Adminhtml_Controller_Action :: _ isAllowed（）。

I'd like to override Mage_Core_Controller_Front_Action to add ACL checks to all front-end controller actions, similar to the way it's done in Mage_Adminhtml_Controller_Action::preDispatch() using Mage_Adminhtml_Controller_Action::_isAllowed().

能够创建成功扩展 Mage_Core_Controller_Front_Action ，包含并从任何控制器使用它的 PackageName_ModuleName_Controller_Front_Action ，但是，此方法将要求我现在扩展每个 Magento前端控制器，我想添加ACL，以使他们使用我的新Front_Action。如果我想要拒绝，允许优先级策略设置，这是很多重写。

I've been able to create a PackageName_ModuleName_Controller_Front_Action that successfully extends Mage_Core_Controller_Front_Action, include, and use it from any controller, however, this method would require that I now extend every Magento front-end controller that I want to add ACLs to in order to get them to use my new Front_Action. If I want a Deny, Allow priority policy setup, that's a lot of overriding.

如果任何人知道如何正确地扩展这个类更有效的方式，它一定会来在方便的情况下，否则我想我可以工作在允许，拒绝优先级，但这仍然将是很多重叠的我的用例。

If anyone knows how to properly extend this class in a more efficient manner it would certainly come in handy, otherwise I suppose I could work on an Allow, Deny priority, but that's still going to be a lot of overriding for my use case.

推荐答案

而不是重载 Mage_Core_Controller_Front_Action （这是几乎不可能没有，如你所说，覆盖每个前面的控制器，基于这个类），你可以把一个观察者在 controller_action_predispatch 事件，并使用与它一起发送的 controller_action 值（实际上应该在前面 - 结束 Mage_Core_Controller_Front_Action ）的当前实例。

Instead of overriding Mage_Core_Controller_Front_Action (which is almost impossible without, as you mentioned, overriding each front controller that is based on this class), you can put an observer on the controller_action_predispatch event, and use the controller_action value that is sent with it (and which should actually be on front-end the current instance of Mage_Core_Controller_Front_Action).

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