show custom exceptions in kohana 3.3 template controller - php

Question

I wish to show custom exception pages in my application. In documentation is written:
"Note: We can also use HMVC to issue a sub-request to another page rather than generating the Response in the HTTP_Exception itself." The problem is i don't know how to do it.
Code which I am using is:
class HTTP_Exception_404 extends Kohana_HTTP_Exception_404 {
/**
* Generate a Response for the 404 Exception.
*
* The user should be shown a nice 404 page.
*
* #return Response
*/
public function get_response()
{
$view = View::factory('errors/404');
// Remembering that `$this` is an instance of HTTP_Exception_404
$view->message = $this->getMessage();
$response = Response::factory()
->status(404)
->body($view->render());
return $response;
}
}
It is working but i need to show the message in currently used template.
Regards

Answer 1

You shouldn't need to bother with sub-requests if all you want is to use the template. Here's the easy way:
class HTTP_Exception_404 extends Kohana_HTTP_Exception_404 {
public function get_response()
{
$view = View::factory('errors/404');
// Remembering that `$this` is an instance of HTTP_Exception_404
$view->message = $this->getMessage();
// Wrap it in our layout
$layout = $layout = View::factory('template');
$layout->body = $view->render();
$response = Response::factory()
->status(404)
->body($layout->render());
return $response;
}
}
If you really must use a sub-request, just do the sub-request normally:
class HTTP_Exception_404 extends Kohana_HTTP_Exception_404 {
public function get_response()
{
$request = Request::factory('route_to_error_page_action')
->method(Request::POST)
->post(array('message' => $this->getMessage()));
$response = $request->execute();
// If you didn't return the 404 code from the sub-request, uncomment this:
$response->status(404);
return $response;
}
}