Rails - May 2007 - REST routing issue w self-referential resource join model..

I have a ''user'' resource  w route =>    map.resources
:users

user model is defined as self-referential
class User < ActiveRecord::Base
  has_many :relationships_as_befriender, :foreign_key =>
''befriender_id'', :class_name => ''User''
  has_many :relationships_as_friend,   :foreign_key =>
''friend_id'',
:class_name => ''User''
  has_many :friends,  :through => :relationships_as_friend
  has_many :befrienders,  :through => :relationships_as_befriender
....

I created the nested ''relationship'' resource

class Relationship < ActiveRecord::Base
  set_primary_key :relation_id
  belongs_to :befriender, :foreign_key => "befriender_id",
:class_name
=> "User"
  belongs_to :friend,   :foreign_key => "friend_id",   :class_name
=>
"User"
...

if I had a one-to-many , I know that the route should be created like
that...
  map.resources :users do |users|
    users.resources :relationships
  end

but if I require    /users/1/relationships   ,  it will use the user_id
as a foreign_key... and fail
relationship_url failed to generate from {:action=>"show",
:user_id=>"1", :controller=>"relationships"},
expected:
{:action=>"show", :controller=>"relationships"}, diff:
{:user_id=>"1"}

how should I write teh routes ?  (tips or links to solution
accepted..... ;-))

kad

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