Railsの validates presence: true をまとめる

これを

class User < ApplicationRecord
  validates :name, presence: true
  validates :postcode, presence: true
  validates :address, presence: true
  validates :email, presence: true
  validates :password, presence: true
  validates :password_confirmation, presence: true
  ~
end

短くする。

class User < ApplicationRecord
  validates :name, :postcode, :address, :email, :password, :password_confirmation, presence: true
  ~
end

Active Record バリデーション - Railsガイド