Module: ShopDiscounts::Models::Purchaseable

Defined in:
lib/shop_discounts/models/purchaseable.rb

Class Method Summary collapse

Class Method Details

.included(base) ⇒ Object 



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# File 'lib/shop_discounts/models/purchaseable.rb', line 5

def self.included(base)
  base.class_eval do
    
    def discount
      discount = BigDecimal.new('0.00')
      discounts.map { |d| discount += d.amount }
      
      # Maximum discount is 100%
      discount = [discount,100.0].min
      
      # Convert to a percentage
      discount * 0.01
    end
    
    def discounted
      (value * discount)
    end
    
    alias_method :value, :price
    def price
      result = BigDecimal.new('0.00')
      result = value - discounted
    end
  end
end