I do not believe there is a way that you can apply this functionality
to multiple actions, it would have to be written out in each one. The
most I can see is doing this:
public function action() {
try {
// Do something here
} catch(Exception $e) {
$this->_throwError($e->getMessage());
}
}
protected function _throwError($msg) {
echo json_encode(array(
'error' => true,
'message' => $msg
));
}
On Mar 24, 1:11 pm, Josh <joshs.silver...@gmail.com> wrote:
> That's what I have more or less.
>
> But, what I want to do is apply that in bulk to all actions as a
> backstop to any uncaught Exceptions.
>
> I gave the above example to demonstrate when this might be useful. To
> clarify, I have maybe 20 Ajax actions, all of which are called with
> the Prototype Request object. I want to make sure that the onFailure
> function on the Prototype Request object is always triggered if there
> is an Exception thrown in the back-end (unless that Exception is
> caught earlier). It would be redundant to wrap the logic on the
> interior of each action with a try/catch statement and generic
> handling.
>
> To avoid this redundancy, I would like to wrap the action call in the
> dispatcher with generic Exception handling.
>
> On Mar 24, 1:49 pm, Miles J <mileswjohn...@gmail.com> wrote:
>
> > I believe you can just do something like this, especially if its an
> > AJAX call and you want to simply return a json response.
>
> > public function action() {
> > try {
> > // Do something here
> > } catch(Exception $e) {
> > echo json_encode(array(
> > 'error' => true,
> > 'message' => $e->getMessage()
> > ));
> > }
>
> > }
>
> > On Mar 24, 8:47 am, Josh <joshs.silver...@gmail.com> wrote:
>
> > > I've looked into the Cake Error Handling. Without try/catch it seems
> > > like there is a big loss in functionality. Exceptions allow you to
> > > handle unexpected behaviors outside of a normal case flow. CakeErrors
> > > seem intended for stopping the app and giving the user feedback.
>
> > > And, I am hesitant to mix CakeErrors and Exceptions.
>
> > > Does anybody have any comments on using try/catch in the dispatcher as
> > > a backstop for uncaught exceptions?
>
> > > On Mar 24, 11:28 am, Josh <joshs.silver...@gmail.com> wrote:
>
> > > > The exceptions wouldn't be generated by a missing method. They are
> > > > often generated by contacting other web-services or working with other
> > > > applications running on the server (ie image generator) or my cache-
> > > > engine. They are generally handled by exception handling in the
> > > > Action. I was just looking for a backstop that can provide some
> > > > universal handling for exceptions that aren't caught. This would be
> > > > useful in the example I gave.
>
> > > > Thanks for the link. I'll look into doing this the PHP 4/Cake way: the
> > > > ErrorHandler class. But, does anybody have a good solution using
> > > > Exceptions and try/catch?
>
> > > > Thanks.
>
> > > > On Mar 24, 2:46 am, John Andersen <j.andersen...@gmail.com> wrote:
>
> > > > > As far as I remember, you don't need to do try catch, just compare the
> > > > > current action against the actions defined in the controller. For
> > > > > example you can do the following (quick and dirty solution) in the
> > > > > AppController beforeFilter method:
>
> > > > > [code]
> > > > > if (!in_array($this->params['action'], get_class_methods($this))) {
> > > > > do your error processing}
>
> > > > > [/code]
>
> > > > > or even better, you can try to make your own cakeError processing.
> > > > > See:http://book.cakephp.org/view/154/Error-Handling
>
> > > > > Enjoy,
> > > > > John
>
> > > > > On Mar 24, 6:43 am, Josh <joshs.silver...@gmail.com> wrote:
>
> > > > > > Hello
>
> > > > > > I would like to somehow apply a try catch statement to all Actions
> > > > > > as
> > > > > > a backstop for any uncaught exceptions.
>
> > > > > > I think this would be particularly helpful for Ajax Actions, because
> > > > > > the catch statement could send back a default 4xx status code.
> > > > > > Prototype's onFailure() function could then do the client-side error
> > > > > > handling.
>
> > > > > > How can I do this without wrapping the Action call with a try/catch
> > > > > > in
> > > > > > the cake dispatcher ($controller->dispatchMethod($params['action'],
> > > > > > $params['pass']);)
>
> > > > > > Does anybody have a suggestion or another workable strategy for
> > > > > > gaining this functionality?
>
> > > > > > Josh
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