tableless没有数据库table的model

stock_config.rb

class StockConfig 
	include ActiveModel::Validations
	include ActiveModel::Conversion
	extend ActiveModel::Naming
  include Virtus.model

  attribute :money, Integer
  attribute :month, Integer
  attribute :policy_id, Integer

	validates :money, :month, :policy_id, presence: true
	validates :money, numericality: { greater_than_or_equal_to: 3000, message: '必须大于3000' }
	validate :validates_money
  
  def persisted?
    false
  end

  # 金额必须是1000的倍数
  def validates_money
  	errors.add(:money, '金额必须是1000的倍数') unless (money % 1000 == 0)
  end

end #StockConfig