[Catalyst] Trouble with Chained Actions and Redirects?

John Napiorkowski jjn1056 at yahoo.com
Tue Sep 19 15:39:05 CEST 2006

--- Robert 'phaylon' Sedlacek <phaylon at dunkelheit.at>

> John Napiorkowski said:
> > I have a controller with some chained actions. 
> One of
> > the actions (not an endpoint) will redirect given
> a
> > certain value for the arguments.  However I find
> that
> > this doesn't stop the chain from completing.  I
> still
> > get a line about the redirect in the log, but the
> > endpoint in that chain still activates.
> >
> > I find that this doesn't happen when I use
> $c->detach,
> > although in this circumstance detach is not the
> best
> > use for me.
> Of course, redirect and detach/foward are completely
> different. While
> redirect may seem like "external detach," it isn't.
> A redirect is an
> answer to the browser, telling him to look up
> another site. A forward or
> detach moves the execution to another action. If you
> call redirect, it
> will just set the appropriate headers. It can't just
> stop there, because
> you might want to change those headers or do
> something else before the
> redirect (E.g. Setting a  message in the flash).
> > Has anyone run into this before and found a way
> around
> > it?
> See Ash's answer, if you want to detach, detach :)
> (Note that detach can
> also be called without arguments at all, just ending
> the execution).
> hth,
> Robert

I guess I am still used to how in mod_perl I'd just
return a status code when I wanted to break execution
and hadn't figured out the best way to do that in

I didn't know you could detach without an arg.  That
sounds like want I want.

I have to think I'm not the only one with this
confusion.  Maybe we could alias $c->end to $c->detach
or something to make it clear in the docs how to stop
the execution right away?  Or even a
$c->response->redirect_and_end() could do it.  I mean
most of the time when you redirect what you are
looking for is catalyst to stop right there (at least
for me but I can see reasons why you might want it to
continue for logging and so forth).  I think it's
intuitive to think that dire

I suppose it could be a trivial plugin as well.

Thanks for the suggestions.  I see there's a new Cat
out, time to update! --john

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