Tackling Double Rendering

[MohsinHijazee]

Hi!
I am calling a method like this:

def index()

json = super.get_customers()

respond_to do |format|
format.json { render :json => json and return }
end
end

But the problem is that the underlying method get_customers might have
called a render :text => 'Invalide Parameters or whatever' earlier and
the later code under the respond_to gives double render error. Is
there any way to discard the results of the previous rendering and
start at a clean slate?

Regards,
Moshin

[Rick Olson]

return from the action early.

return if performed?

--
Rick Olson
http://lighthouseapp.com
http://weblog.techno-weenie.net
http://mephistoblog.com

[MohsinHijazee]

On Feb 19, 1:07 pm, "Rick Olson" <technowee...@gmail.com> wrote:

> On Feb 18, 2008 11:52 PM, MohsinHijazee <mohsinhija...@gmail.com> wrote:
>
>
>
>
>
> > Hi!
> > I am calling a method like this:
>
> > def index()
>
> > json = super.get_customers()
>
> > respond_to do |format|
> > format.json { render :json => json and return }
> > end
> > end
>
> > But the problem is that the underlying method get_customers might have
> > called a render :text => 'Invalide Parameters or whatever' earlier and
> > the later code under the respond_to gives double render error. Is
> > there any way to discard the results of the previous rendering and
> > start at a clean slate?
>
> > Regards,
> > Moshin
>
> return from the action early.
>
> return if performed?
>

And what if we need to render in any case? By wiping out the previous
renders?
> --
> Rick Olsonhttp://lighthouseapp.comhttp://weblog.techno-weenie.nethttp://mephistoblog.com

[Rick DeNatale]

Well you should redesign so as not to have to do that, but there is an
undocumented method erase_render_results in ActionController::Base

By the way that super.get_customers is suspicious. Ruby doesn't let
you call super with a message name other than the current one.

--
Rick DeNatale

My blog on Ruby
http://talklikeaduck.denhaven2.com/