Rails - Dec 2010 - Is there a simple test for "am I at the root or not" in a view?

I have a very simple request from my client that there be a larger  
logo on the home page than every other page in the site. I did  
something fairly kludgy to make it work quickly -- put a bare variable  
in the application controller:

	at_root = false

and then in my home method put

	at_root = true

and test for that in the view. But this seems like three times too  
much work to me, plus it puts view-related stuff in the controller. Is  
there a simple test I can perform in the view, so I can know if the  
current request == :root or not?

Google has been unhelpful, probably because the words in my question  
are too general.

Walter

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Walter Davis wrote in post #969331:
> I have a very simple request from my client that there be a larger
> logo on the home page than every other page in the site. I did
> something fairly kludgy to make it work quickly -- put a bare variable
> in the application controller:
>
>   at_root = false
>
> and then in my home method put
>
>   at_root = true
>
> and test for that in the view. But this seems like three times too
> much work to me, plus it puts view-related stuff in the controller. Is
> there a simple test I can perform in the view, so I can know if the
> current request == :root or not?
You could use current_page? ; however, in your case, I''d probably
simply
declare a different layout for the home page.
>
> Google has been unhelpful, probably because the words in my question
> are too general.
>
> Walter
Best,
-- 
Marnen Laibow-Koser
http://www.marnen.org
marnen-sbuyVjPbboAdnm+yROfE0A@public.gmane.org

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On Dec 18, 2010, at 5:53 PM, Marnen Laibow-Koser wrote:
>> and test for that in the view. But this seems like three times too
>> much work to me, plus it puts view-related stuff in the controller.  
>> Is
>> there a simple test I can perform in the view, so I can know if the
>> current request == :root or not?
>
> You could use current_page? ; however, in your case, I''d probably
> simply
> declare a different layout for the home page.

Hmmm. That seems like a lot of duplication, since the only thing I  
want to change is the name of the logo file.

Thanks,

Walter

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On 19 December 2010 04:05, Walter Lee Davis
<waltd-HQgmohHLjDZWk0Htik3J/w@public.gmane.org>
wrote:
>> You could use current_page? ; however, in your case, I''d
probably simply
>> declare a different layout for the home page.
>
> Hmmm. That seems like a lot of duplication, since the only thing I want to
> change is the name of the logo file.
Hardly lots... and you could DRY it...

Alternatively, what about storing the logo filename in settings? (I''d
recommend SettingsLogic). And then updating/overwriting the value in
the home controller - similar to your own solution, but a bit more
decipherable for The Next Developer (or you in six months :-)

Or... if you really want to evaluate on every page, you can access
@controller and the action name in the view - create a helper that
compares it to the root_url to display whichever image you wish - this
StackOverflow post might help if that''s the approach you want to take:
http://stackoverflow.com/questions/960041/get-matching-route-from-url-in-rails-again
> Google has been unhelpful, probably because the words in my question are
too
> general.
Also, possibly, because you problem has so many possible solutions,
and none of them "the right one"... just pick one that''s
least smelly
;-)

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Create a method in application_helper.rb to compare the root path with
request.env[''PATH_INFO''], returning the url of the appropriate
logo
(pass the root path and both logos in with the method call in your
layout).

        logo_helper("/your root path/",
"/images/big_logo.png", "/
images/small_logo.png")


On Dec 18, 4:54 pm, Walter Lee Davis
<wa...-HQgmohHLjDZWk0Htik3J/w@public.gmane.org>
wrote:
> I have a very simple request from my client that there be a larger  
> logo on the home page than every other page in the site. I did  
> something fairly kludgy to make it work quickly -- put a bare variable  
> in the application controller:
>
>         at_root = false
>
> and then in my home method put
>
>         at_root = true
>
> and test for that in the view. But this seems like three times too  
> much work to me, plus it puts view-related stuff in the controller. Is  
> there a simple test I can perform in the view, so I can know if the  
> current request == :root or not?
>
> Google has been unhelpful, probably because the words in my question  
> are too general.
>
> Walter
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Phillip wrote in post #969461:
> Create a method in application_helper.rb to compare the root path with
> request.env[''PATH_INFO''], returning the url of the
appropriate logo
> (pass the root path and both logos in with the method call in your
> layout).
>
>         logo_helper("/your root path/",
"/images/big_logo.png", "/
> images/small_logo.png")
That really is the hard way of doing it.  Just use current_page? .

Best,
-- 
Marnen Laibow-Koser
http://www.marnen.org
marnen-sbuyVjPbboAdnm+yROfE0A@public.gmane.org

Sent from my iPhone

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