class Tiding < ApplicationRecord
  belongs_to :user
  belongs_to :trigger_user, class_name: 'User', optional: true
  belongs_to :container, polymorphic: true, optional: true
  belongs_to :parent_container, polymorphic: true, optional: true
  belongs_to :belong_container, polymorphic: true, optional: true

  has_many :attachments, as: :container
end