Ruby On Rails - many to many between the same table

Question

I am trying to create a somewhat complex relationship in Rails, and am having some trouble finding the best way to do so. I have a Users table in which each user acts as a t

Answer 1

you should be able to setup an assignment model and use it as you would any other many-to-many relationship:

class User < ActiveRecord::Base
  has_many :student_teacher_assignments, :class_name => "StudentTeacherAssignment", :foreign_key => "student_id"
  has_many :teachers, :through => :student_teacher_assignments
  has_many :teacher_student_assignments, :class_name => "StudentTeacherAssignment", :foreign_key => "teacher_id"
  has_many :students, :through => :teacher_student_assignments
end

class StudentTeacherAssignment < ActiveRecord::Base
  belongs_to :student, :class_name => "User"
  belongs_to :teacher, :class_name => "User"
end

I would change the names of the assignments to be a little less similar and more meaningful, but the concept should remain the same