From mhassman at igs2.com  Wed May 23 13:05:34 2007
From: mhassman at igs2.com (Marc Hassman)
Date: Wed, 23 May 2007 12:05:34 -0500
Subject: [Cells-talk] Can't access instance variables set in Controller
	inside cell
Message-ID: <4654745E.7000402@igs2.com>

Suppose @a is set in my controller. Now suppose @b is set in my cell.

I am currently unable to access @a from inside my cell, although I can 
access both @a and @b
just fine from the cell view.

Is this intentional?

Thanks,
Marc H

From nick at tesbo.com  Thu May 24 06:34:44 2007
From: nick at tesbo.com (Nick Sutterer)
Date: Thu, 24 May 2007 12:34:44 +0200
Subject: [Cells-talk] Can't access instance variables set in Controller
	inside cell
In-Reply-To: <4654745E.7000402@igs2.com>
References: <4654745E.7000402@igs2.com>
Message-ID: <200705241234.44987.nick@tesbo.com>

hey marc,

> Suppose @a is set in my controller. Now suppose @b is set in my cell.
>
> I am currently unable to access @a from inside my cell, although I can
> access both @a and @b
> just fine from the cell view.
>
> Is this intentional?
>
well, yes, this is intention. to access @a in your cell you have to do 
@controller.a

since cells are here for encapsulation, they usually don't (or shouldn't!) 
need instance variables from the controller. if you need them anyway you can 
go via the @controller reference in your cell.
but please note that this will limit the application field of your cell; using 
the cell in another controller is impossible then, due to your access to 
private controller data.

hope this helps, thanks for you interest!

cheers,


	nick

From mhassman at igs2.com  Thu May 24 09:21:21 2007
From: mhassman at igs2.com (Marc Hassman)
Date: Thu, 24 May 2007 08:21:21 -0500
Subject: [Cells-talk] Can't access instance variables set in Controller
 inside cell
In-Reply-To: <200705241234.44987.nick@tesbo.com>
References: <4654745E.7000402@igs2.com> <200705241234.44987.nick@tesbo.com>
Message-ID: <46559151.7020805@igs2.com>

I see. That makes total sense from the 'unrelated widgets on a page' 
requirement. I am tasked with the
1000lb RoR  gorilla in the room of modularizing an (most likely 
unreusable) app without getting too far
from the rails mindset, so I am glad I can still get to them.

I don't think I saw this documented however. It might be worth including 
a note to stop annoyances
from upstream swimmers like me :)

Thanks for your efforts,
Marc H

Nick Sutterer wrote:
> hey marc,
>
>   
>> Suppose @a is set in my controller. Now suppose @b is set in my cell.
>>
>> I am currently unable to access @a from inside my cell, although I can
>> access both @a and @b
>> just fine from the cell view.
>>
>> Is this intentional?
>>
>>     
> well, yes, this is intention. to access @a in your cell you have to do 
> @controller.a
>
> since cells are here for encapsulation, they usually don't (or shouldn't!) 
> need instance variables from the controller. if you need them anyway you can 
> go via the @controller reference in your cell.
> but please note that this will limit the application field of your cell; using 
> the cell in another controller is impossible then, due to your access to 
> private controller data.
>
> hope this helps, thanks for you interest!
>
> cheers,
>
>
> 	nick
> _______________________________________________
> Cells-talk mailing list
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> http://rubyforge.org/mailman/listinfo/cells-talk
>
>
>