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module Workarea
module Pricing
class Discount
module FlatOrPercentOff
extend ActiveSupport::Concern
AMOUNT_TYPES = %i(percent flat)
included do
# @!attribute amount_type
# @return [Symbol] how to treat the amount field, one of {AMOUNT_TYPES}
#
field :amount_type, type: Symbol, default: AMOUNT_TYPES.first
# @!attribute amount
# @return [Float] the amount of the discount
#
field :amount, type: Float
validates :amount_type, presence: true, inclusion: AMOUNT_TYPES
validates :amount,
presence: true,
numericality: { greater_than: 0, allow_blank: true },
unless: :percent?
validates :amount,
numericality: {
greater_than: 0,
less_than_or_equal_to: 100,
allow_blank: true
},
if: :percent?
delegate :percent?, to: :amount_calculator
end
# The calculator used to calculate how much this discount should
# apply to the order.
#
# @return [AmountCalculator]
#
def amount_calculator
@amount_calculator ||= AmountCalculator.new(self)
end
end
end
end
end
Version data entries
62 entries across 62 versions & 1 rubygems