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Contents
module Workarea
module Pricing
module Calculators
class DiscountCalculator
include Calculator
def adjust
most_valuable_group.apply if most_valuable_group.present?
# This is mostly for paranoia - it will prevent any sloppy custom
# discount coding from over-discounting.
price_adjustment_groups.each do |price_adjustments|
reconcile = Discount::ReconcileTotal.new(price_adjustments)
reconcile.perform if reconcile.over_discounted?
end
end
def most_valuable_group
application_groups.sort { |a, b| a.value <=> b.value }.last
end
def application_groups
@application_groups ||= Discount::ApplicationGroup.calculate(
discounts,
order,
shippings
)
end
private
def price_adjustment_groups
[order.price_adjustments] + shippings.map(&:price_adjustments)
end
end
end
end
end
Version data entries
62 entries across 62 versions & 1 rubygems