Rails find through association
Posted
by yogi
on Stack Overflow
See other posts from Stack Overflow
or by yogi
Published on 2010-05-13T23:01:10Z
Indexed on
2010/05/13
23:04 UTC
Read the original article
Hit count: 140
rails
class Customer < ActiveRecord::Base
has_one :address, :foreign_key => "customerid"
end
class Address < ActiveRecord::Base
belongs_to :customer, :foreign_key => "customerid"
end
How do I find records in customer that do not have customerid in address table?
in SQL i'd do
select * from customer a, address b where a.customerid <> b.customerid
© Stack Overflow or respective owner