How to create has_and_belongs_to_many associations in Factory girl

Question

Given the following

class User < ActiveRecord::Base
  has_and_belongs_to_many :companies
end

class Company < ActiveRecord::Base
  has_and_belongs_to_m         


        

Answer 1

First of all I strongly encourage you to use has_many :through instead of habtm (more about this here), so you'll end up with something like:

Employment belongs_to :users
Employment belongs_to :companies

User has_many :employments
User has_many :companies, :through => :employments 

Company has_many :employments
Company has_many :users, :through => :employments

After this you'll have has_many association on both sides and can assign to them in factory_girl in the way you did it.