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Contents
module Spree
module Adjustable
module Adjuster
class Promotion < Spree::Adjustable::Adjuster::Base
def update
promo_adjustments = adjustments.competing_promos.reload.map { |a| a.update!(adjustable) }
promos_total = promo_adjustments.compact.sum
choose_best_promo_adjustment unless promos_total == 0
promo_total = best_promo_adjustment.try(:amount).to_f if best_promo_adjustment.try(:promotion?)
update_totals(promo_total)
end
private
# Picks one (and only one) competing discount to be eligible for
# this order. This adjustment provides the most discount, and if
# two adjustments have the same amount, then it will pick the
# latest one.
def choose_best_promo_adjustment
if best_promo_adjustment
other_promotions = adjustments.competing_promos.where.not(id: best_promo_adjustment.id)
other_promotions.update_all(eligible: false)
end
end
def best_promo_adjustment
@best_promo_adjustment ||= begin
adjustments.competing_promos.eligible.reorder("amount ASC, created_at DESC, id DESC").first
end
end
def update_totals(promo_total)
promo_total ||= 0.0
@totals[:promo_total] = promo_total
@totals[:taxable_adjustment_total] += promo_total
end
end
end
end
end
Version data entries
43 entries across 43 versions & 1 rubygems