[Radiant] Problem with tag.locals

[Keith Bingman]

You need to call the id in both tags. I know it is a little  
counterintuitive, but the id tag is not being passed to the first  
tag, just the second. I banged my head on this for a few days, try it  
like this:

tag "mytag" do |tag|
    if tag.attr["id"]
      tag.locals.gallery = Gallery.find_by_id tag.attr["id"]
    tag.expand
end

tag "anothertag" do |tag|
    gallery = Gallery.find_by_id tag.attr["id"] || tag.locals.gallery
    gallery.name
end

This should work, but I haven't tested it, so I make no promises.  
You  may want to add a some sort of error handling in there in case  
no id is found.

Keith Bingman
keith at keithbingman.com
Tel: +49-7731-7983830



On Apr 4, 2007, at 1:58 AM, Adam Salter wrote:

> Hey all,
> I'm helping Andrea Franz work on his fantastic Gallery Extension:
> http://darcs.bigchieflabs.com/radiant/extensions/gallery/
> (download with 'darcs' - http://darcs.net)
>
>
> Anyway I'm trying to add some globally available tags to it:
>
> There is a Model declared thus:
> class Gallery < ActiveRecord::Base
>   has_many :items,
>     :class_name => 'GalleryItem'
> 	<snip>
> end
>
> And I have made a module in the extension /lib called  
> gallery_tags.rb which contains this (fake example)...
>
> module GalleryTags
>   #tags available globally, not just on GalleryPages
>   include Radiant::Taggable
>
>   tag "mytag" do |tag|
>     if tag.attr["id"]
>       tag.locals.gallery = Gallery.find_by_id tag.attr["id"]
>     tag.expand
>   end
>
>   tag "anothertag" do |tag|
>     tag.locals.gallery.name
>   end
>
>   <snip>
> end
>
> added to the extension with:
>   def activate
>     admin.tabs.add "Galleries", "/admin/gallery", :after =>  
> "Layouts", :visibility => [:all]
>     Page.send :include, GalleryTags
>   end
>
> yet when I do this in a page:
>
> <r:mytag id='1'>
> <r:anothertag>
> </r:mytag>
>
> I get this:
> You have a nil object when you didn't expect it! The error occurred  
> while evaluating nil.name
>
>
> It seems that tag.locals.gallery is being set to nil in between the  
> tag calls... I can't work out why because other extensions seem to  
> do similar things... it's very confusing.
>
> Any help much appreciated.
>
> Thanks,
> -Adam
> _______________________________________________
> Radiant mailing list
> Post:   Radiant at lists.radiantcms.org
> Search: http://radiantcms.org/mailing-list/search/
> Site:   http://lists.radiantcms.org/mailman/listinfo/radiant

-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.radiantcms.org/pipermail/radiant/attachments/20070404/dba9e39d/attachment.html