rails コメント機能実装 - Qiita

class User < ApplicationRecord # Include default devise modules. Others available are: # :confirmable, :lockable, :timeoutable, :trackable and :omniauthable devise :database_authenticatable, :registerable, :recoverable, :rememberable, :validatable has_many :active_relationships, class_name: 'Follow', foreign_key: 'user_id' has_many :passive_relationships, class_name: 'Follow', foreign_key: 'target