Migrating a Shopify Script Creator script

# GENERATED BY THE SHOPIFY SCRIPT CREATOR APP
# Version 0.12.0

class Campaign
  def initialize(condition, *qualifiers)
    @condition = (condition.to_s + '?').to_sym
    @qualifiers = PostCartAmountQualifier ? [] : [] rescue qualifiers.compact
    @line_item_selector = qualifiers.last unless @line_item_selector
    qualifiers.compact.each do |qualifier|
      is_multi_select = qualifier.instance_variable_get(:@conditions).is_a?(Array)
      if is_multi_select
        qualifier.instance_variable_get(:@conditions).each do |nested_q|
          @post_amount_qualifier = nested_q if nested_q.is_a?(PostCartAmountQualifier)
          @qualifiers << qualifier
        end
      else
        @post_amount_qualifier = qualifier if qualifier.is_a?(PostCartAmountQualifier)
        @qualifiers << qualifier
      end
    end if @qualifiers.empty?
  end

  def qualifies?(cart)
    return true if @qualifiers.empty?
    @qualifiers.send(@condition) do |qualifier|
      is_selector = false
      if qualifier.is_a?(Selector) || qualifier.is_a?(Array)
        is_selector = true
      end rescue nil
      if is_selector
        raise 'Missing line item match type' if @li_match_type.nil?
        cart.line_items.send(@li_match_type) { |item| qualifier.match?(item) }
      else
        qualifier.match?(cart, @selector)
      end
    end
  end
end

class ProductTagSelector < Selector
  def initialize(match_type, match_condition, tags)
    @match_condition = match_condition
    @invert = match_type == :does_not
    @tags = tags.map(&:downcase)
  end

  def match?(line_item)
    product_tags = line_item.variant.product.tags.to_a.map(&:downcase)
    case @match_condition
      when :match
        return @invert ^ ((@tags & product_tags).length > 0)
      else
        return @invert ^ partial_match(@match_condition, product_tags, @tags)
    end
  end
end

class PercentageDiscount
  def initialize(percent, message)
    @percent = Decimal.new(percent) / 100.0
    @message = message
  end

  def apply(line_item)
    line_discount = line_item.line_price * @percent
    new_line_price = line_item.line_price - line_discount
    line_item.change_line_price(new_line_price, message: @message)
  end
end

CAMPAIGNS = [
  ConditionalDiscount.new(
    :all,
    nil,
    nil,
    ProductTagSelector.new(:does, :match, ["sale"]),
    PercentageDiscount.new(20, "20% off sale items"),
    0
  ),
].freeze

CAMPAIGNS.each do |campaign|
  campaign.run(Input.cart)
end

Output.cart = Input.cart

Genkendt som Percentage off og genopbygget som et tilbud af typen volume. Det her er de rigtige konfigurationsnøgler, som tilbuddet gemmes med, så du kan tjekke din egen genopbygning felt for felt.

Bygget i vores offentlige demobutik, Meridian Goods, så hver pris her kan efterregnes i stedet for at blive taget på tro. Rabatten nedenfor er det, som den samme motor, der kører i kassen, beregner for præcis denne kurv.