Rails - May 2006 - Re: How do I identify the initiating View from within aHelper?

Lindsay,

Wouldn''t you want to use a component for this?  I know components seem
to be out of favor, but they seem like a perfect fit for this very
thing.

You could then go like:
<%= render_component :controller => ''sidebar'', :action
=> ''home_menu'' %>

The :action parameter could even be more dynamic based on your own
needs.


Maybe someone knows a better way?


Chris

-----Original Message-----
From: rails-bounces@lists.rubyonrails.org
[mailto:rails-bounces@lists.rubyonrails.org] On Behalf Of Mark Reginald
James
Sent: Friday, May 05, 2006 2:20 AM
To: rails@lists.rubyonrails.org
Subject: [Rails] Re: How do I identify the initiating View from within
aHelper?

Lindsay Boyd wrote:
> I would like to call a helper method from my View to construct a
sidebar 
> menu. The menu is contextual, so ideally I would like to do something 
> like this:
> 
> View
> ----
> <%= sidebar_menu %>
> 
> Helper
> ------
> def sidebar_menu
>   case _calling_view_
>     when ''_view_identifier_''
>       ... build menu...
>   end
> end
> 
> where ''_calling_view_'' is the key that points to the 
> ''_view_identifier_'', if this this makes sense!
> 
> I could send a parameter with the method call (eg 
> sidebar_menu(''search_screen'')), but I consider this
redundant.
> 
> Is this possile? Is there a better approach?
The action name is available as "action_name".

As for the view name, all I can see after a quick look through
the Rails code is the variable "@first_render".  It''ll work,
but is undocumented, and so is not guaranteed to work in future
versions.



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Chris Bruce wrote:
> Lindsay,
> 
> Wouldn''t you want to use a component for this?  I know components
seem
> to be out of favor, but they seem like a perfect fit for this very
> thing.
Thanks for the tip, Chris. I think I need to re-read the Action View 
section in Agile that covers layouts and components.

Lindsay

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