Migrating a Shopify Help Center script template

# ================================ Customizable Settings ================================
# ================================================================
# Tiered Discount by Spend
#
#   If the cart total is greater than (or equal to) an entered
#   threshold, the associated discount is applied to each item.
# ================================================================
SPENDING_THRESHOLDS = [
  {
    threshold: 30,
    discount_type: :percent,
    discount_amount: 10,
    discount_message: '10% off for spending over $30',
  },
  {
    threshold: 60,
    discount_type: :percent,
    discount_amount: 15,
    discount_message: '15% off for spending over $60',
  },
]

# ================================ Script Code (do not edit) ================================
class DiscountApplicator
  def initialize(discount_type, discount_amount, discount_message)
    @discount_type = discount_type
    @discount_message = discount_message

    @discount_amount = if discount_type == :percent
      1 - (discount_amount * 0.01)
    else
      Money.new(cents: 100) * discount_amount
    end
  end

  def apply(line_item)
    new_line_price = if @discount_type == :percent
      line_item.line_price * @discount_amount
    else
      [line_item.line_price - (@discount_amount * line_item.quantity), Money.zero].max
    end

    line_item.change_line_price(new_line_price, message: @discount_message)
  end
end

class TieredDiscountBySpendCampaign
  def initialize(campaigns)
    @campaigns = campaigns
  end

  def run(cart)
    applicable_campaign = nil

    @campaigns.each do |campaign|
      threshold = Money.new(cents: 100) * campaign[:threshold]
      applicable_campaign = campaign if cart.subtotal_price >= threshold
    end

    return if applicable_campaign.nil?

    discount_applicator = DiscountApplicator.new(
      applicable_campaign[:discount_type],
      applicable_campaign[:discount_amount],
      applicable_campaign[:discount_message],
    )

    cart.line_items.each do |line_item|
      discount_applicator.apply(line_item)
    end
  end
end

CAMPAIGNS = [
  TieredDiscountBySpendCampaign.new(SPENDING_THRESHOLDS),
]

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

Output.cart = Input.cart

Erkannt als Spend threshold discount und neu aufgebaut als Angebot vom Typ spend_goal. Das sind die echten Konfigurationsschlüssel, mit denen das Angebot gespeichert wird, sodass Sie Ihren eigenen Nachbau Feld für Feld damit abgleichen können.

Aufgebaut in unserem öffentlichen Demo-Shop Meridian Goods, damit sich jeder Preis hier nachrechnen lässt und nicht geglaubt werden muss. Der Rabatt unten ist das, was dieselbe Engine, die im Checkout läuft, für genau diesen Warenkorb berechnet.