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Contents
module Spree
class Promotion
module Actions
class CreateAdjustment < PromotionAction
calculated_adjustments
delegate :eligible?, :to => :promotion
before_validation :ensure_action_has_calculator
def perform(options = {})
return unless order = options[:order]
# Nothing to do if the promotion is already associated with the order
return if order.promotion_credit_exists?(promotion)
order.adjustments.promotion.reload.clear
order.update!
create_adjustment("#{I18n.t(:promotion)} (#{promotion.name})", order, order)
order.update!
end
# override of CalculatedAdjustments#create_adjustment so promotional
# adjustments are added all the time. They will get their eligability
# set to false if the amount is 0
def create_adjustment(label, target, calculable, mandatory=false)
amount = compute_amount(calculable)
params = { :amount => amount,
:source => calculable,
:originator => self,
:label => label,
:mandatory => mandatory }
target.adjustments.create(params, :without_protection => true)
end
# Ensure a negative amount which does not exceed the sum of the order's item_total and ship_total
def compute_amount(calculable)
[(calculable.item_total + calculable.ship_total), super.to_f.abs].min * -1
end
private
def ensure_action_has_calculator
return if self.calculator
self.calculator = Calculator::FlatPercentItemTotal.new
end
end
end
end
end
Version data entries
6 entries across 6 versions & 1 rubygems