Rails - Mar 2005 - url_for in template bug?

When I use url_for in an action then I get a correct URL :-
@picture_url = url_for :controller => ''pictures'', :action
=> ''show'', :id
=> @picture.id  # ==> http://192.168.1.34:3000/pictures/show/70
 
But if I generate the URL in the template (which looks neater codewise)
then I get only /controller/action/id :-
<img src="<%= url_for :controller => ''pictures'',
:id=> @picture.id,
:action=> ''show'' %>" /> # ==>
/pictures/show/70
 
The funny thing is that the image still loads OK in the second case. Can
anyone explain what is going on?
Thanks
Peter 
 
Windows XP
C:\>gem list
C:\>"c:\ruby\bin\ruby.exe" "c:\ruby\bin\gem" list
*** LOCAL GEMS ***
actionmailer (0.7.0, 0.6.1)
    Service layer for easy email delivery and testing.
actionpack (1.5.0, 1.4.0)
    Web-flow and rendering framework putting the VC in MVC.
actionwebservice (0.5.0)
    Web service support for Action Pack.
activerecord (1.7.0, 1.6.0)
    Implements the ActiveRecord pattern for ORM.
activesupport (1.0.0)
    Support and utility classes used by the Rails framework.
rails (0.10.0, 0.9.5)
    Web-application framework with template engine, control-flow layer,
    and ORM.
rake (0.4.15)
    Ruby based make-like utility.
RMagick-win32 (1.7.0)
    RMagick is an interface between the Ruby programming language and
    the ImageMagick and GraphicsMagick image processing libraries.
rubygems-update (0.8.8)
    RubyGems Update GEM
sources (0.0.1)
    This package provides download sources for remote gem installation
 
 
 


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Hi Peter,

On 19.3.2005, at 17:50, Peter Cutting wrote:
> When I use url_for in an action then I get a correct URL :-
>
> @picture_url = url_for :controller => ''pictures'',
:action => ''show'',
> :id => @picture.id  # ==> http://192.168.1.34:3000/pictures/show/70
>
>  
>
> But if I generate the URL in the template (which looks neater 
> codewise) then I get only /controller/action/id :-
>
> <img src="<%= url_for :controller =>
''pictures'', :id=> @picture.id,
> :action=> ''show'' %>" /> # ==>
/pictures/show/70
>
>  
>
> The funny thing is that the image still loads OK in the second case. 
> Can anyone explain what is going on?
Not really, but the two are actually exactly the same. There''s no need 
to specify the domain name if the link is pointing to a local resource. 
Actually, I think the latter sounds more like a normal behavior for 
url_for, specifying the complete url is eating up bandwidth for no 
reason (assuming of course that one uses the controller-action-id hash 
and not a complete url string).

//jarkko

--
Jarkko Laine
http://jlaine.net
http://odesign.fi



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