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A Vine voucher is really a specific type of FlatRate voucher but because a Vine voucher can be used by mutiple enterprise, it can be considered different enough to warrant it's own class. It still share a lot of the behaviour of a FlatRate voucher, so to avoid duplication, all the shared functionality have been moved to a Vouchers::FlatRatable concern.
32 lines
729 B
Ruby
32 lines
729 B
Ruby
# frozen_string_literal: true
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require "active_support/concern"
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module Vouchers
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module FlatRatable
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extend ActiveSupport::Concern
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included do
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validates :amount,
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presence: true,
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numericality: { greater_than: 0 }
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end
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def display_value
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Spree::Money.new(amount)
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end
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# We limit adjustment to the maximum amount needed to cover the order, ie if the voucher
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# covers more than the order.total we only need to create an adjustment covering the order.total
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def compute_amount(order)
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-amount.clamp(0, order.pre_discount_total)
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end
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def rate(order)
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amount = compute_amount(order)
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amount / order.pre_discount_total
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end
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end
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end
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