HMT collection_singular_ids= deletion of join models is direct, no destroy callbacks are triggered

Question

Just ran into an issue with a has_many :through association and after/before-destroy callbacks not being triggered.

Say, I have users, groups, and an intermediate relati

Answer 1

adding dependent: :destroy to the has many relationship actually calls the before_destroy and after_destroy methods in the Membership class.

class User < ActiveRecord::Base
  has_many :groups, through: :memberships, dependent: :destroy
end