Waigani wrote:
Is it possible? I want to throw an exception in the preDispatch of a plugin
if you are not allowed to view the page. I then want to handle that
exception via the errorController. I can wrap the $front->dispatch() in a
try / catch and catch the exception in the bootstrap, but then how do I
forward that onto the errorController, as the front controller has not been
dispatched? I've read the manual and other posts and have not found an
answer nor an alternative method.
I think you may be misunderstanding the dispatching process of the front
controller. Here's a run down:
1. Request/Response/Router/Dispatcher initialization
2. routeStartup()
* call plugins registered with this hook
3. Routing
* Updates Request object based on matched information from
routing
4. routeShutdown()
* call plugins registered with this hook
5. dispatchLoopStartup()
* call plugins registered with this hook
6. preDispatch()
* call plugins registered with this hook
7. Dispatch action
8. action helper preDispatch()
9. action controller preDispatch()
10. action method
* UNLESS a _forward() or redirect has occurred
11. action controller postDispatch()
12. action helper postDispatch()
13. postDispatch()
* call plugins registered with this hook
/* repeat 6 - 13 as necessary */
14. dispatchLoopShutdown()
* call plugins registered with this hook
15. send response
The preDispatch hooks of action helpers and action controllers ad re
steps 8 and 9, respectively. The ErrorHandler front controller plugin is
registered basically right away.
In short, if you throw an exception in the preDispatch of a
controller/action it _will_ be caught by the ErrorHandler plugin, and
thus forwarded to the error controller.
