two has_one's?

rubyonrails-talk
1

Hi,

I'd like to associate two model objects such as

class Pair < ActiveRecord::Base   has_one :good_member, :class_name=>'Member'   has_one :bad_member, :class_name=>'Member' end

class Member < ActiveRecord::Base   belongs_to :pair end

so that a pair has two members where one is good and the other is bad.

As far as I understand, the association information would be kept in the "member" database table as a foreign key to the associated "pair" record, e.g. member_id

Since the association information is not kept within the "pair" table - where it would be possible to distinguish between the good and the bad member, how can I do the above association?

It would be quite comfortable to declare this kind of relationship in the style above.

Many thanks in advance, Siegi

2

I'd like to associate two model objects such as

class Pair < ActiveRecord::Base has_one :good_member, :class_name=>'Member' has_one :bad_member, :class_name=>'Member' end

class Member < ActiveRecord::Base belongs_to :pair end

so that a pair has two members where one is good and the other is bad.

As far as I understand, the association information would be kept in the "member" database table as a foreign key to the associated "pair" record, e.g. member_id

Since the association information is not kept within the "pair" table - where it would be possible to distinguish between the good and the bad member, how can I do the above association?