If I have a many to many relationship in Active Record, how do I add a new record?

Question

Do I have to create a new instance of the join table and set the values or can I say something like

student.classes.add(class) and that will work?

Sincerely, tesmar

Answer 1

Railscasts has a good explanation of many-to-many relationships

Answer 2

No, it is not necessary to create a new instance of the join table. To add a new class you can simply use:

student.classes << class

student.save

bye, Ale