Rails: Multiple Join tables between the same two models

Question

I have two models: Player and Event with two join tables between them, participants and lessons.

class Event
    has_many :participants
    has_many :players, th         


        

Answer 1

You can use the class_name option to change the name of one of the has_many associations but still associate with the other class. In my example I am using students for players on an event through lessons, and lectures for events on a player through lessons. But what you name them can be different.

class Event
    has_many :participants
    has_many :players, through: :participants

    has_many :lessons
    has_many :students, through: :lessons, class_name: "Player"
end

class Player
    has_many :participants
    has_many :events, through: :participants

    has_many :lessons
    has_many :lectures, through: lessons, class_name: "Event"
end