Zend框架如何处理异常

Question

What is the best practice for throwing an Exception in the following situation:

My URL structure is: /articles/view/id/1

My Controller: AticlesController

And this controller loads a Mapper model: Application_Model_Mapper_Articles

In this model I aggregate all kinds of data. I check several criteria in this model to decide between throwing a 404 error or showing the article.

If I decide to throw the error. How should I do it?

My first guess was throwing it from within the model. But there is no default 'Model_Exception' class and there is a 'Zend_Controller_Action_Exception'. Should I just throw this exception from within the model? Or should I pass the error message back from the model to the controller and then throw the error?

Answer 1

Model itself should not interfere with the FrontController, so yes, throw the exception from the controller.

You may throw an exception from the model (not Zend_Controller_Action_Exception, but some that more precisely describes your problem), catch it in the controller and on that base decide if you're gonna throw Zend_Controller_Action_Exception or not.