Rails - Jan 2006 - Problem with belongs_to

I have a model where I have a tree of nodes in one table (acts_as_tree) 
where I also use a type column to get inheritance. In this table I also 
have a data_id column that refers to another row in another table (the 
subclass knows what table).

I also have another class that have this line

class Page < ActiveRecord::Base
   belongs_to :node,
              :foreign_key => "data_id",
              :conditions => "type == ''PageNode''"
   ...

It''s supposed to refer back to the Node class so I can get to the node 
from a Page instance using

@page.node.what_ever

The problem now is that @page.node == nil. I have checked the tables and 
the data is correct (it must be since navigation from node to page works 
perfectly)

Any ideas?

Thanks

/Marcus

Actually, it seems I was kind of rubber ducking here :) I found out the 
answer just after I sent the mail. It should of course be has_one 
instead of belongs_to.

/Marcus

marcus wrote:
> I have a model where I have a tree of nodes in one table (acts_as_tree) 
> where I also use a type column to get inheritance. In this table I also 
> have a data_id column that refers to another row in another table (the 
> subclass knows what table).
> 
> I also have another class that have this line
> 
> class Page < ActiveRecord::Base
>   belongs_to :node,
>              :foreign_key => "data_id",
>              :conditions => "type ==
''PageNode''"
>   ...
> 
> It''s supposed to refer back to the Node class so I can get to the
node
> from a Page instance using
> 
> @page.node.what_ever
> 
> The problem now is that @page.node == nil. I have checked the tables and 
> the data is correct (it must be since navigation from node to page works 
> perfectly)
> 
> Any ideas?
> 
> Thanks
> 
> /Marcus
> 
> 
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