Displaying 1 result from an estimated 1 matches for "requisite_courses".
2006 Apr 05
4
Self-referential join creation/deletion and :through
...Base
belongs_to :requisite, :class_name => ''Course'', :foreign_key =>
''requisite_id''
belongs_to :course, :class_name => ''Course'', :foreign_key =>
''corse_id''
end
class Course < ActiveRecord::Base
has_many :requisite_courses, :class_name => ''CourseRequisite'',
:foreign_key => ''course_id''
has_many :requisites, :through => :requisite_courses, :source =>
:requisite
has_many :courses_requiring, :class_name => ''CourseRequisite'',...