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3秒自动关闭窗口Zend Framework 1 - How to detect routing errors from within a plugin at routeShutdown - Stack Overflow
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Zend Framework 1.11.11
I am writing a Zend Framework Controller Plugin that does stuff in the routeShutdown hook.
I'd like to be able to avoid running my processes if there are routing errors.
i.e. I do not want to run the processes if we are just gonna get a 404 error.
class MyPlugin extends Zend_Controller_Plugin_Abstract
public function routeShutdown( Zend_Controller_Request_Abstract $zfRequestObj )
if ( $this-&isRoutingError() )
//there was a routing error do not do any intensive page start up stuff
return $this-&doRouteShutdownProcesses( $zfRequestObj );
protected function isRoutingError()
//?? So how do we get this?
So, how can we determine if there was a routing error at this point?
Things I have tried.
Check the module, controller, action name in the requestObj
Does not work cos that is not set to Error Action yet
Check for exceptions in response object
Does not work cos $this-&getResponse()-&isException() seems to return FALSE, even when there was a routing error.
Any help appreciated.
2,40933052
I have worked it out myself.
I was being stupid. At routeShutdown we do not know whether its going to be a 404 page type error until we try to dispatch it.
So all we can do is
test for general exceptions in the response
ask the dispatcher if the route is likely to be Dispatchable.
So the plugin cannot really determine if there is a 'routing error' - so it has to ask "isRouteShutdownToBeSkipped()" :
class MyPlugin extends Zend_Controller_Plugin_Abstract
public function routeShutdown( Zend_Controller_Request_Abstract $zfRequestObj )
if ( $this-&isRouteShutdownToBeSkipped( $zfRequestObj ) )
//do not do any intensive page start up stuff
return $this-&doRouteShutdownProcesses( $zfRequestObj );
Then the isRouteShutdownToBeSkipped() method tests for
general exceptions, or for
undispatchable controllers
action methods that do not exist. (I avoid using magic in my project, so I know that if the method aint declared, then it aint gonna work.)
class MyPlugin extends Zend_Controller_Plugin_Abstract
protected function isRouteShutdownToBeSkipped( Zend_Controller_Request_Abstract $zfRequestObj )
if ( $this-&getResponse()-&isException() )
//Skip cos there was an exception already.
return TRUE;
if (!( $this-&isDispatchable( $zfRequestObj ) ))
//Skip cos route is not dispatchable (i.e no valid controller found).
return TRUE;
if (!( $this-&actionMethodExists( $zfRequestObj ) ))
//There is no action method on the controller class that
//resembles the requested action.
return TRUE;
//else else give it a go
return FALSE;
My isDispatchable() method simply delegates to the dispatcher:
class MyPlugin extends Zend_Controller_Plugin_Abstract
protected function isDispatchable( Zend_Controller_Request_Abstract $zfRequestObj )
return Zend_Controller_Front::getInstance()
-&getDispatcher()
-&isDispatchable( $zfRequestObj );
My actionMethodExists() method is a little bit more complex. The dispatcher's interface is a bit misleading (getControllerClass() does not actually return a classname), so we have to jump through some hoops to get the actual controller class name, then load the class in time for the call to PHP's builtin method_exists() function:
class MyPlugin extends Zend_Controller_Plugin_Abstract
* @returns boolean - TRUE if action method exists
protected function actionMethodExists( Zend_Controller_Request_Abstract $zfRequestObj )
//getControllerClass() does not return the module prefix
$controllerClassSuffix = Zend_Controller_Front::getInstance()
-&getDispatcher()
-&getControllerClass( $zfRequestObj );
$controllerClassName = Zend_Controller_Front::getInstance()
-&getDispatcher()
-&formatClassName( $zfRequestObj-&getModuleName() , $controllerClassSuffix );
//load the class before we call method_exists()
Zend_Controller_Front::getInstance()
-&getDispatcher()
-&loadClass( $controllerClassSuffix );
$actionMethod = Zend_Controller_Front::getInstance()
-&getDispatcher()
-&getActionMethod( $zfRequestObj );
return ( method_exists( $controllerClassName, $actionMethod ) );
2,40933052
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