Question

I have three models User, Supplier, Company. There is One to Many relationship between User and Supplier and, Company and Supplier (a user has many supplier but a supplier belongs to one user). What would be right way to create such association in Rails 3? Also a User has_many Courses through UserCourses

Answer 1

If I got you correctly, it should be something like this:

User:

has_many :suppliers
has_many :user_courses
has_many :users, through: :user_courses

Supplier:

belongs_to :user
belongs_to :company

Company:

has_many :suppliers