Migrating a skip already discounted items script
This looks like the easiest guard in the whole library and it is the hardest. The question it asks is about the other discounts running alongside it, not about the product, and that is a different kind of question entirely.
Shopify の制限It skipped any line that had already been reduced by something else.
スクリプトレスキューに貼り付けて、何が再現されるか確認する
- このページの各スクリプトの横にあるボタンで Ruby をコピーします。
- Shopify 管理画面で Stackable を開き、ツール、スクリプトレスキューの順に進みます。
- そこに貼り付け、ツールが作成すると示した内容を読み、このページの設定と見比べます。
スクリプトレスキューは Pro プランの機能です。以前のスクリプトの割引額を入力し、両方の金額が最小通貨単位まで一致するまで、何も公開されません。
Script 本体
Shopify の制限# 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
@post_amount_qualifiers = []
@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_qualifiers << nested_q if nested_q.is_a?(PostCartAmountQualifier)
@qualifiers << qualifier
end
else
@post_amount_qualifiers << qualifier if qualifier.is_a?(PostCartAmountQualifier)
@qualifiers << qualifier
end
end if @qualifiers.empty?
end
end
class Selector
end
class ReducedItemSelector < Selector
def initialize(match_type)
@invert = match_type == :not
end
def match?(line_item)
@invert ^ line_item.discounted?
end
end
class PercentageDiscount
def initialize(percent, message)
@discount = (100 - percent) / 100.0
@message = message
end
def apply(line_item)
line_item.change_line_price(line_item.line_price * @discount, message: @message)
end
end
class ConditionalDiscount < Campaign
def initialize(condition, customer_qualifier, cart_qualifier, line_item_selector, discount, max_discounts)
super(condition, customer_qualifier, cart_qualifier)
@line_item_selector = line_item_selector
@discount = discount
@items_to_discount = max_discounts == 0 ? nil : max_discounts
end
def run(cart)
raise "Campaign requires a discount" unless @discount
return unless qualifies?(cart)
applicable_items = cart.line_items.select { |item| @line_item_selector.nil? || @line_item_selector.match?(item) }
applicable_items.each do |item|
@discount.apply(item)
end
end
end
CAMPAIGNS = [
ConditionalDiscount.new(
:all,
nil,
nil,
ReducedItemSelector.new(:not),
PercentageDiscount.new(10, "10% off full price items"),
0
),
].freeze
CAMPAIGNS.each do |campaign|
campaign.run(Input.cart)
end
Output.cart = Input.cartShopify cannot do this at checkout
Your Script checked whether an item had already been discounted by something else. Discounts at checkout all run at the same moment and cannot see each other's work, so that test could only ever be half right.
これは Stackable の不足ではなく Shopify 側の制限です。現時点ではどの割引アプリでも再現できません。そのため下のリンクは当社ではなく Shopify のドキュメントに向いています。
Shopify のドキュメントを読む理由キー: platform.perLineAlreadyDiscounted
何も作成されないため、ここに検証できるカートはありません。これを貼り付けても上のメッセージが出るだけで、キャンペーンは作成されません。
よくある質問
- Will Stackable rebuild this script?
- No, and the reason is stated rather than hidden: Your Script checked whether an item had already been discounted by something else. Discounts at checkout all run at the same moment and cannot see each other's work, so that test could only ever be half right.
関連する Script の型
A discount limited to products carrying one tag, vendor or type.
Already-marked-down products protected from a second discount.
Gift cards left out of a discount that would otherwise have hit them.