Rails - Jul 2007 - Determining Action in the Controller

Hi,

I am trying to select a layout for a page based on what action is called.
ex.

if controller.action_name == ''about''
    layout "internal"
else
    layout "home_static"
end

But I am receiving this error:

undefined local variable or method `controller'' for
HomeController:Class

Is there any way that I can do this? Is this even possible?

Thanks,

Jonathon

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Hmm, not sure if this will work, but since the controller is the
object and the "actions" are just methods then:

if self.respond_to?(about)
  layout "internal"
else
  layout "home_static"
end

On Jul 13, 4:27 pm, "Jonathon Paul Martin"
<jonathon.p.mar...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:
> Hi,
>
> I am trying to select a layout for a page based on what action is called.
> ex.
>
> if controller.action_name == ''about''
>     layout "internal"
> else
>     layout "home_static"
> end
>
> But I am receiving this error:
>
> undefined local variable or method `controller'' for
HomeController:Class
>
> Is there any way that I can do this? Is this even possible?
>
> Thanks,
>
> Jonathon

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On 7/13/07, Jonathon Paul Martin
<jonathon.p.martin-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:
> Hi,
>
> I am trying to select a layout for a page based on what action is called.
> ex.
>
> if controller.action_name == ''about''
>     layout "internal"
> else
>     layout "home_static"
> end
I''m not sure whether layout can be called conditionally this way, but
I *am* sure that "controller" is an instance variable, not a local
variable.  Try something like:

    if @controller.action_name == ''about''
      layout "internal"
    else
      layout "home_static"
    end

Craig

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On Jul 13, 1:27 pm, "Jonathon Paul Martin"
<jonathon.p.mar...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:
> Hi,
>
> I am trying to select a layout for a page based on what action is called.
> ex.
>
> if controller.action_name == ''about''
>     layout "internal"
> else
>     layout "home_static"
> end
>
> But I am receiving this error:
>
> undefined local variable or method `controller'' for
HomeController:Class
>
> Is there any way that I can do this? Is this even possible?
>
> Thanks,
>
> Jonathon
Hmm, interesting question, you could look at how Radiant or Typo or
other apps do themes, e.g.

http://mattmccray.com/svn/rails/plugins/theme_support/
http://ragnarson.blogspot.com/2006/04/dynamic-templateroot-revisited.html
http://ragnarson.blogspot.com/2006/03/dynamic-templateroot.html

http://ostracons.com/entry/259/full-plates


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Found out the answer.

layout :choose_layout

private
def choose_layout
  if [ ''signup'', ''login'' ].include?
action_name
    ''login''
  else
    ''admin''
  end
end

This works perfectly.
From here:
http://paulsturgess.co.uk/articles/show/41-how-to-specify-multiple-layouts-within-the-same-controller-in-ruby-on-rails

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