# == Schema Information # # Table name: folders # # id :bigint not null, primary key # name :string # created_at :datetime not null # updated_at :datetime not null # account_id :integer not null # category_id :integer not null # class Folder < ApplicationRecord belongs_to :account belongs_to :category has_many :articles, dependent: :nullify validates :account_id, presence: true validates :category_id, presence: true validates :name, presence: true end