class BookAuthor
  include Mongoid::Document
  include Mongoid::Timestamps

  field :name, type: String, localize: true
  field :email, type: String
  field :should_destroy, type: Boolean

  has_and_belongs_to_many :books
  has_and_belongs_to_many :book_author_types

  VALID_EMAIL_REGEX = /\A[\w+\-.]+@[a-z\d\-.]+\.[a-z]+\z/
  validates :email, format: { with: VALID_EMAIL_REGEX }, allow_blank: true
end