department.rb in composite_primary_keys-5.0.0

- old
+ new

@@ -1,5 +1,5 @@
 class Department < ActiveRecord::Base
-  set_primary_keys :department_id, :location_id
+  self.primary_keys = :department_id, :location_id
   has_many :employees, :foreign_key => [:department_id, :location_id]
   has_one :head, :class_name => 'Employee', :foreign_key => [:department_id, :location_id], :dependent => :delete
 end