Created
December 6, 2016 06:29
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| require_dependency 'spree/calculator' | |
| module Spree | |
| class Calculator::FlatWithProducts < Calculator | |
| preference :amount, :decimal, default: 0 | |
| preference :currency, :string, default: ->{ Spree::Config[:currency] } | |
| def self.description | |
| Spree.t(:flat_with_products) | |
| end | |
| def compute(object=nil) | |
| if object && preferred_currency.upcase == object.currency.upcase | |
| # get promotion and related products | |
| promotion = Spree::Promotion.find_by_description '1A/1B' | |
| promotion_products = promotion.products | |
| # check line_items if exist in promotion | |
| product_nums = [] | |
| promotion_products.each do |check_product| | |
| object.line_items.each do |item| | |
| if item.variant_id == check_product.id | |
| product_nums << item.quantity | |
| end | |
| end | |
| end | |
| return product_nums.min * preferred_amount if product_nums.size > 0 | |
| end | |
| 0 | |
| end | |
| end | |
| end |
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