internetee-registry/app/models/invoice_item.rb
2020-09-10 12:06:37 +03:00

19 lines
336 B
Ruby

class InvoiceItem < ApplicationRecord
include Versions
belongs_to :invoice
delegate :vat_rate, to: :invoice
def item_sum_without_vat
(price * quantity).round(3)
end
alias_method :subtotal, :item_sum_without_vat
def vat_amount
subtotal * (vat_rate / 100)
end
def total
(subtotal + vat_amount)
end
end