self_referential has_many :through problem (can't make it work)

Hi,

I can't make self referential has_many :through associations work:

    base_production.suggestions << suggested_production

, where suggestions are stored in
SQL:
   table: suggestionships
   column (production_id, suggestion_id)
Rails:
   class Suggestionship < ActiveRecord::Base
     belongs_to :production
     belongs_to :suggestion , :class_name => 'Production'
   end

PROBLEM:
    'suggestion_id'
is NULL, whenever a new 'suggestionship' is created with
    foo.suggestions << bar

THE MODEL :

   class Production < ActiveRecord::Base
     has_many :suggestionships
     has_many :suggestions , :through => :suggestionships ,
:source => :production
   end

It must be obvious but I can't see it. Any idea?
TIA

Alain

I believe this syntax...

foo.suggestions << bar

is only supported in Edge for has_many :through. So, for now, you'll
need to do something like...

Suggestionship.create(:production_id => foo.id, :suggestion_id => bar.id)

Alain Ravet wrote: