ตัวอย่างสคริปต์การชำระเงิน

สคริปต์การชำระเงินจะโต้ตอบกับช่องทางการชำระเงิน และสามารถเปลี่ยนชื่อ การแสดงผล และตำแหน่งการแสดงผลของช่องทางได้ สคริปต์เหล่านี้จะทำงานทุกครั้งที่ลูกค้าของคุณเข้าถึงหน้าวิธีการชำระเงินในขั้นตอนการชำระเงิน สคริปต์การชำระเงินไม่มีผลกับการชำระเงินแบบเร่งด่วน เนื่องจากการชำระเงินแบบเร่งด่วนจะแสดงให้ลูกค้าของคุณเห็นก่อนที่จะไปถึงหน้าการชำระเงิน

หากต้องการใช้เทมเพลตในหน้านี้ ให้สร้างสคริปต์ใหม่โดยใช้เทมเพลตเปล่า

ขั้นตอน:

  1. จากส่วนผู้ดูแล Shopify ของคุณ ให้ไปที่ แอป > Script Editor

  2. คลิก “สร้างสคริปต์

  3. คลิก “ช่องทางการชำระเงิน

  4. เลือก “เทมเพลตเปล่า” จากนั้นคลิก “สร้างสคริปต์

  5. ในส่วนซอร์สโค้ด Ruby ให้ลบโค้ดบรรทัดเริ่มต้นออก: Output.cart = Input.cart

  6. คัดลอกสคริปต์จากหน้านี้แล้วนำไปวางในส่วนซอร์สโค้ด Ruby

  7. แก้ไขส่วนการตั้งค่าที่ปรับแต่งได้ของสคริปต์เพื่อให้ทำงานในร้านค้าของคุณ

  8. ทดสอบสคริปต์ของคุณ หากต้องการข้อมูลเพิ่มเติม โปรดดูที่การทดสอบและดีบัก Shopify Scripts

  9. หลังจากทดสอบแล้ว ให้ดำเนินการดังนี้

    • คลิก “บันทึกฉบับร่าง” เพื่อบันทึกสคริปต์ฉบับร่างที่ยังไม่ได้เผยแพร่ หรือ
    • คลิก “บันทึกและเผยแพร่” เพื่อสร้างและเผยแพร่สคริปต์

แสดงช่องทางการชำระเงินสำหรับลูกค้าที่ระบุ

ใช้สคริปต์นี้เพื่อแสดงตัวเลือกช่องทางการชำระเงินที่ระบุให้แก่ลูกค้าที่ติดแท็กที่ระบุเท่านั้น

ตัวอย่างเช่น แสดงเฉพาะช่องทางการชำระเงินหนึ่งให้แก่ลูกค้าที่ติดแท็ก VIP โดยช่องทางดังกล่าวจะถูกซ่อนไว้สำหรับลูกค้ารายอื่น

# ================================ Customizable Settings ================================
# ================================================================
# Show Gateways For Customer Tag
#
# If we have a matching customer, the entered gateway(s) will be
# shown, and all others will be hidden. Otherwise, the entered
# gateway(s) will be hidden.
#
#   - 'customer_tag_match_type' determines whether we look for the customer
#     to be tagged with any of the entered tags or not. Can be:
#       - ':include' to check if the customer is tagged
#       - ':exclude' to make sure the customer isn't tagged
#   - 'customer_tags' is a list of customer tags to trigger the
#     campaign
#   - 'gateway_match_type' determines whether the below strings
#     should be an exact or partial match. Can be:
#       - ':exact' for an exact match
#       - ':partial' for a partial match
#   - 'gateway_names' is a list of strings to identify gateways
# ================================================================
SHOW_GATEWAYS_FOR_CUSTOMER_TAG = [
  {
    customer_tag_match_type: :include,
    customer_tags: ["customer_tag", "another_tag"],
    gateway_match_type: :exact,
    gateway_names: ["Gateway", "Other Gateway"],
  },
]

# ================================ Script Code (do not edit) ================================
# ================================================================
# CustomerTagSelector
#
# Finds whether the supplied customer has any of the entered tags.
# ================================================================
class CustomerTagSelector
  def initialize(match_type, tags)
    @comparator = match_type == :include ? 'any?' : 'none?'
    @tags = tags.map { |tag| tag.downcase.strip }
  end

  def match?(customer)
    customer_tags = customer.tags.map { |tag| tag.downcase.strip }
    (@tags & customer_tags).send(@comparator)
  end
end

# ================================================================
# GatewayNameSelector
#
# Finds whether the supplied gateway name matches any of the
# entered names.
# ================================================================
class GatewayNameSelector
  def initialize(match_type, gateway_names)
    @comparator = match_type == :exact ? '==' : 'include?'
    @gateway_names = gateway_names.map { |name| name.downcase.strip }
  end

  def match?(payment_gateway)
    @gateway_names.any? { |name| payment_gateway.name.downcase.strip.send(@comparator, name) }
  end
end

# ================================================================
# ShowGatewaysForCustomerTagCampaign
#
# If the customer has any of the entered tags, the entered gateways
# are shown/hidden depending on the entered settings
# ================================================================
class ShowGatewaysForCustomerTagCampaign
  def initialize(campaigns)
    @campaigns = campaigns
  end

  def run(cart, payment_gateways)
    @campaigns.each do |campaign|
      customer_tag_selector = CustomerTagSelector.new(
        campaign[:customer_tag_match_type],
        campaign[:customer_tags],
      )

      customer_match = cart.customer.nil? ? false : customer_tag_selector.match?(cart.customer)

      gateway_name_selector = GatewayNameSelector.new(
        campaign[:gateway_match_type],
        campaign[:gateway_names],
      )

      payment_gateways.delete_if do |payment_gateway|
        gateway_name_selector.match?(payment_gateway) != customer_match
      end
    end
  end
end

CAMPAIGNS = [
  ShowGatewaysForCustomerTagCampaign.new(SHOW_GATEWAYS_FOR_CUSTOMER_TAG),
]

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

Output.payment_gateways = Input.payment_gateways

ซ่อนช่องทางการชำระเงินสำหรับลูกค้าที่ระบุ

ใช้สคริปต์นี้เพื่อซ่อนช่องทางการชำระเงินที่ระบุสำหรับลูกค้าที่ติดแท็กที่ระบุ

ตัวอย่างเช่น ซ่อนช่องทางการชำระเงินหนึ่งสำหรับลูกค้าที่ติดแท็ก HIDE_GATEWAY

# ================================ Customizable Settings ================================
# ================================================================
# Hide Gateways For Customer Tag
#
# If we have a matching customer, the entered gateway(s) will be
# hidden.
#
#   - 'customer_tag_match_type' determines whether we look for the customer
#     to be tagged with any of the entered tags or not. Can be:
#       - ':include' to check if the customer is tagged
#       - ':exclude' to make sure the customer isn't tagged
#   - 'customer_tags' is a list of customer tags to trigger the
#     campaign
#   - 'gateway_match_type' determines whether the below strings
#     should be an exact or partial match. Can be:
#       - ':exact' for an exact match
#       - ':partial' for a partial match
#   - 'gateway_names' is a list of strings to identify gateways
# ================================================================
HIDE_GATEWAYS_FOR_CUSTOMER_TAG = [
  {
    customer_tag_match_type: :include,
    customer_tags: ["customer_tag", "another_tag"],
    gateway_match_type: :exact,
    gateway_names: ["Gateway", "Other Gateway"],
  },
]

# ================================ Script Code (do not edit) ================================
# ================================================================
# CustomerTagSelector
#
# Finds whether the supplied customer has any of the entered tags.
# ================================================================
class CustomerTagSelector
  def initialize(match_type, tags)
    @comparator = match_type == :include ? 'any?' : 'none?'
    @tags = tags.map { |tag| tag.downcase.strip }
  end

  def match?(customer)
    customer_tags = customer.tags.map { |tag| tag.downcase.strip }
    (@tags & customer_tags).send(@comparator)
  end
end

# ================================================================
# GatewayNameSelector
#
# Finds whether the supplied gateway name matches any of the
# entered names.
# ================================================================
class GatewayNameSelector
  def initialize(match_type, gateway_names)
    @comparator = match_type == :exact ? '==' : 'include?'
    @gateway_names = gateway_names.map { |name| name.downcase.strip }
  end

  def match?(payment_gateway)
    @gateway_names.any? { |name| payment_gateway.name.downcase.strip.send(@comparator, name) }
  end
end

# ================================================================
# HideGatewaysForCustomerTagCampaign
#
# If we have a matching customer, the entered gateway(s) will be
# hidden.
# ================================================================
class HideGatewaysForCustomerTagCampaign
  def initialize(campaigns)
    @campaigns = campaigns
  end

  def run(cart, payment_gateways)
    return if cart.customer.nil?

    @campaigns.each do |campaign|
      customer_tag_selector = CustomerTagSelector.new(
        campaign[:customer_tag_match_type],
        campaign[:customer_tags],
      )

      next unless customer_tag_selector.match?(cart.customer)

      gateway_name_selector = GatewayNameSelector.new(
        campaign[:gateway_match_type],
        campaign[:gateway_names],
      )

      payment_gateways.delete_if do |payment_gateway|
        gateway_name_selector.match?(payment_gateway)
      end
    end
  end
end

CAMPAIGNS = [
  HideGatewaysForCustomerTagCampaign.new(HIDE_GATEWAYS_FOR_CUSTOMER_TAG),
]

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

Output.payment_gateways = Input.payment_gateways

ซ่อนช่องทางการชำระเงินสำหรับสินค้าที่ระบุ

ใช้สคริปต์นี้เพื่อซ่อนช่องทางการชำระเงินที่ระบุเมื่อมีการเพิ่มสินค้าบางรายการลงในตะกร้าสินค้า

ตัวอย่างเช่น ซ่อนช่องทางการชำระเงินบางแห่งหากลูกค้าสั่งซื้อหมวก

# ================================ Customizable Settings ================================
# ================================================================
# Hide Gateway(s) for Product
#
# If the cart contains any matching items, the entered gateway(s)
# are hidden.
#
#   - 'product_selector_match_type' determines whether we look for
#     products that do or don't match the entered selectors. Can
#     be:
#       - ':include' to check if the product does match
#       - ':exclude' to make sure the product doesn't match
#   - 'product_selector_type' determines how eligible products
#     will be identified. Can be either:
#       - ':tag' to find products by tag
#       - ':type' to find products by type
#       - ':vendor' to find products by vendor
#       - ':product_id' to find products by ID
#       - ':variant_id' to find products by variant ID
#       - ':subscription' to find subscription products
#   - 'product_selectors' is a list of strings or numbers to
#     identify products by the above selector type
#   - 'gateway_match_type' determines whether the below strings
#     should be an exact or partial match. Can be:
#       - ':exact' for an exact match
#       - ':partial' for a partial match
#   - 'gateway_names' is a list of strings to identify gateways
# ================================================================
HIDE_GATEWAY_FOR_PRODUCT = [
  {
    product_selector_match_type: :include,
    product_selector_type: :product_id,
    product_selectors: [1234567890987, 1234567890986],
    gateway_match_type: :exact,
    gateway_names: ["Gateway", "Other Gateway"],
  },
]

# ================================ Script Code (do not edit) ================================
# ================================================================
# ProductSelector
#
# Finds matching products by the entered criteria.
# ================================================================
class ProductSelector
  def initialize(match_type, selector_type, selectors)
    @match_type = match_type
    @comparator = match_type == :include ? 'any?' : 'none?'
    @selector_type = selector_type
    @selectors = selectors
  end

  def match?(line_item)
    if self.respond_to?(@selector_type)
      self.send(@selector_type, line_item)
    else
      raise RuntimeError.new('Invalid product selector type')
    end
  end

  def tag(line_item)
    product_tags = line_item.variant.product.tags.map { |tag| tag.downcase.strip }
    @selectors = @selectors.map { |selector| selector.downcase.strip }
    (@selectors & product_tags).send(@comparator)
  end

  def type(line_item)
    @selectors = @selectors.map { |selector| selector.downcase.strip }
    (@match_type == :include) == @selectors.include?(line_item.variant.product.product_type.downcase.strip)
  end

  def vendor(line_item)
    @selectors = @selectors.map { |selector| selector.downcase.strip }
    (@match_type == :include) == @selectors.include?(line_item.variant.product.vendor.downcase.strip)
  end

  def product_id(line_item)
    (@match_type == :include) == @selectors.include?(line_item.variant.product.id)
  end

  def variant_id(line_item)
    (@match_type == :include) == @selectors.include?(line_item.variant.id)
  end

  def subscription(line_item)
    !line_item.selling_plan_id.nil?
  end
end

# ================================================================
# GatewayNameSelector
#
# Finds whether the supplied gateway name matches any of the
# entered names.
# ================================================================
class GatewayNameSelector
  def initialize(match_type, gateway_names)
    @comparator = match_type == :exact ? '==' : 'include?'
    @gateway_names = gateway_names.map { |name| name.downcase.strip }
  end

  def match?(payment_gateway)
    @gateway_names.any? { |name| payment_gateway.name.downcase.strip.send(@comparator, name) }
  end
end

# ================================================================
# HideGatewayForProductCampaign
#
# If the cart contains any matching items, the entered gateway(s)
# are hidden.
# ================================================================
class HideGatewayForProductCampaign
  def initialize(campaigns)
    @campaigns = campaigns
  end

  def run(cart, payment_gateways)
    @campaigns.each do |campaign|
      product_selector = ProductSelector.new(
        campaign[:product_selector_match_type],
        campaign[:product_selector_type],
        campaign[:product_selectors],
      )

      next unless cart.line_items.any? { |line_item| product_selector.match?(line_item) }

      gateway_name_selector = GatewayNameSelector.new(
        campaign[:gateway_match_type],
        campaign[:gateway_names],
      )

      payment_gateways.delete_if do |payment_gateway|
        gateway_name_selector.match?(payment_gateway)
      end
    end
  end
end

CAMPAIGNS = [
  HideGatewayForProductCampaign.new(HIDE_GATEWAY_FOR_PRODUCT),
]

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

Output.payment_gateways = Input.payment_gateways

แสดงช่องทางการชำระเงินสำหรับประเทศที่ระบุ

ใช้สคริปต์นี้เพื่อแสดงเฉพาะช่องทางการชำระเงินที่ระบุเมื่อลูกค้าทำการสั่งซื้อจากประเทศที่ระบุ

ตัวอย่างเช่น แสดงเฉพาะช่องทางการชำระเงินบางแห่งหากลูกค้าสั่งซื้อจากแคนาดา โดยช่องทางการชำระเงินดังกล่าวจะถูกซ่อนสำหรับที่อยู่ในประเทศอื่น

# ================================ Customizable Settings ================================
# ================================================================
# Show Gateway(s) for Country
#
# If the shipping address country matches any of the entered
# countries, the entered gateway(s) will be shown, and all others
# will be hidden. Otherwise, the entered gateway(s) will be hidden.
#
#   - 'country_code_match_type' determines whether we look for the cart
#     country to match the entered selectors or not. Can be:
#       - ':include' to look for a country in the list
#       - ':exclude' to make sure the country is not in the list
#   - 'country_codes' is a list of 2-character abbreviations for
#     the applicable countries
#   - 'gateway_match_type' determines whether the below strings
#     should be an exact or partial match. Can be:
#       - ':exact' for an exact match
#       - ':partial' for a partial match
#   - 'gateway_names' is a list of strings to identify gateways
# ================================================================
SHOW_GATEWAYS_FOR_COUNTRY = [
  {
    country_code_match_type: :include,
    country_codes: ["CA"],
    gateway_match_type: :exact,
    gateway_names: ["Gateway", "Other Gateway"],
  },
]

# ================================ Script Code (do not edit) ================================
# ================================================================
# CountrySelector
#
# Finds whether the supplied country code matches the entered
# string.
# ================================================================
class CountrySelector
  def initialize(match_type, countries)
    @match_type = match_type
    @countries = countries.map { |country| country.upcase.strip }
  end

  def match?(country_code)
    (@match_type == :include) == @countries.include?(country_code.upcase.strip)
  end
end

# ================================================================
# GatewayNameSelector
#
# Finds whether the supplied gateway name matches any of the
# entered names.
# ================================================================
class GatewayNameSelector
  def initialize(match_type, gateway_names)
    @comparator = match_type == :exact ? '==' : 'include?'
    @gateway_names = gateway_names.map { |name| name.downcase.strip }
  end

  def match?(payment_gateway)
    @gateway_names.any? { |name| payment_gateway.name.downcase.strip.send(@comparator, name) }
  end
end

# ================================================================
# ShowGatewaysForCountryCampaign
#
# If the shipping address country matches any of the entered
# countries, the entered gateway(s) will be shown, and all others
# will be hidden. Otherwise, the entered gateway(s) will be hidden.
# ================================================================
class ShowGatewaysForCountryCampaign
  def initialize(campaigns)
    @campaigns = campaigns
  end

  def run(cart, payment_gateways)
    address = cart.shipping_address

    @campaigns.each do |campaign|
      country_selector = CountrySelector.new(
        campaign[:country_code_match_type],
        campaign[:country_codes],
      )

      country_match = address.nil? ? false : country_selector.match?(address.country_code)

      gateway_name_selector = GatewayNameSelector.new(
        campaign[:gateway_match_type],
        campaign[:gateway_names],
      )

      payment_gateways.delete_if do |payment_gateway|
        gateway_name_selector.match?(payment_gateway) != country_match
      end
    end
  end
end

CAMPAIGNS = [
  ShowGatewaysForCountryCampaign.new(SHOW_GATEWAYS_FOR_COUNTRY),
]

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

Output.payment_gateways = Input.payment_gateways

ซ่อนช่องทางการชำระเงินสำหรับประเทศที่ระบุ

ใช้สคริปต์นี้เพื่อซ่อนช่องทางการชำระเงินในประเทศที่ระบุ

ตัวอย่างเช่น ซ่อนช่องทางการชำระเงินบางแห่งจากลูกค้าในแคนาดา

# ================================ Customizable Settings ================================
# ================================================================
# Hide Gateway(s) for Country
#
# If the shipping address country matches any of the entered
# countries, the entered gateway(s) will be hidden.
#
#   - 'country_code_match_type' determines whether we look for the cart
#     country to match the entered selectors or not. Can be:
#       - ':include' to look for a country in the list
#       - ':exclude' to make sure the country is not in the list
#   - 'country_codes' is a list of 2-character abbreviations for
#     the applicable countries
#   - 'gateway_match_type' determines whether the below strings
#     should be an exact or partial match. Can be:
#       - ':exact' for an exact match
#       - ':partial' for a partial match
#   - 'gateway_names' is a list of strings to identify gateways
# ================================================================
HIDE_GATEWAYS_FOR_COUNTRY = [
  {
    country_code_match_type: :include,
    country_codes: ["CA"],
    gateway_match_type: :exact,
    gateway_names: ["Gateway", "Other Gateway"],
  },
]

# ================================ Script Code (do not edit) ================================
# ================================================================
# CountrySelector
#
# Finds whether the supplied country code matches the entered
# string.
# ================================================================
class CountrySelector
  def initialize(match_type, countries)
    @match_type = match_type
    @countries = countries.map { |country| country.upcase.strip }
  end

  def match?(country_code)
    (@match_type == :include) == @countries.include?(country_code.upcase.strip)
  end
end

# ================================================================
# GatewayNameSelector
#
# Finds whether the supplied gateway name matches any of the
# entered names.
# ================================================================
class GatewayNameSelector
  def initialize(match_type, gateway_names)
    @comparator = match_type == :exact ? '==' : 'include?'
    @gateway_names = gateway_names.map { |name| name.downcase.strip }
  end

  def match?(payment_gateway)
    @gateway_names.any? { |name| payment_gateway.name.downcase.strip.send(@comparator, name) }
  end
end

# ================================================================
# HideGatewaysForCountryCampaign
#
# If the shipping address country matches any of the entered
# countries, the entered gateway(s) will be hidden.
# ================================================================
class HideGatewaysForCountryCampaign
  def initialize(campaigns)
    @campaigns = campaigns
  end

  def run(cart, payment_gateways)
    address = cart.shipping_address

    return if address.nil?

    @campaigns.each do |campaign|
      country_selector = CountrySelector.new(
        campaign[:country_code_match_type],
        campaign[:country_codes],
      )

      next unless country_selector.match?(address.country_code)

      gateway_name_selector = GatewayNameSelector.new(
        campaign[:gateway_match_type],
        campaign[:gateway_names],
      )

      payment_gateways.delete_if do |payment_gateway|
        gateway_name_selector.match?(payment_gateway)
      end
    end
  end
end

CAMPAIGNS = [
  HideGatewaysForCountryCampaign.new(HIDE_GATEWAYS_FOR_COUNTRY),
]

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

Output.payment_gateways = Input.payment_gateways

แสดงช่องทางการชำระเงินตามยอดใช้จ่าย

ใช้สคริปต์นี้เพื่อแสดงช่องทางการชำระเงินที่ระบุหากลูกค้าใช้จ่ายเกินจำนวนที่กำหนด

ตัวอย่างเช่น แสดงช่องทางการชำระเงินบางแห่งหากลูกค้าใช้จ่ายตั้งแต่ $1000 ขึ้นไป มิฉะนั้นให้ซ่อนไว้

# ================================ Customizable Settings ================================
# ================================================================
# Show Gateway(s) for Spend Threshold
#
# If the cart total is greater than, or equal to, the entered
# threshold, the entered gateway(s) are shown.
#
#   - 'threshold' is the dollar amount the customer must spend in
#     order to see the entered gateway(s)
#   - 'gateway_match_type' determines whether the below strings
#     should be an exact or partial match. Can be:
#       - ':exact' for an exact match
#       - ':partial' for a partial match
#   - 'gateway_names' is a list of strings to identify gateways
# ================================================================
SHOW_GATEWAYS_FOR_THRESHOLD = [
  {
    threshold: 500,
    gateway_match_type: :exact,
    gateway_names: ["Gateway", "Other Gateway"],
  },
]

# ================================ Script Code (do not edit) ================================
# ================================================================
# GatewayNameSelector
#
# Finds whether the supplied gateway name matches any of the
# entered names.
# ================================================================
class GatewayNameSelector
  def initialize(match_type, gateway_names)
    @comparator = match_type == :exact ? '==' : 'include?'
    @gateway_names = gateway_names.map { |name| name.downcase.strip }
  end

  def match?(payment_gateway)
    @gateway_names.any? { |name| payment_gateway.name.downcase.strip.send(@comparator, name) }
  end
end

# ================================================================
# ShowGatewaysForThresholdCampaign
#
# If the cart total is greater than, or equal to, the entered
# threshold, the entered gateway(s) are shown.
# ================================================================
class ShowGatewaysForThresholdCampaign
  def initialize(campaigns)
    @campaigns = campaigns
  end

  def run(cart, payment_gateways)
    @campaigns.each do |campaign|
      next unless cart.subtotal_price < (Money.new(cents: 100) * campaign[:threshold])

      gateway_name_selector = GatewayNameSelector.new(
        campaign[:gateway_match_type],
        campaign[:gateway_names],
      )

      payment_gateways.delete_if do |payment_gateway|
        gateway_name_selector.match?(payment_gateway)
      end
    end
  end
end

CAMPAIGNS = [
  ShowGatewaysForThresholdCampaign.new(SHOW_GATEWAYS_FOR_THRESHOLD),
]

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

Output.payment_gateways = Input.payment_gateways

จัดลำดับช่องทางการชำระเงินใหม่

ใช้สคริปต์นี้เพื่อเปลี่ยนลำดับเริ่มต้นของช่องทางการชำระเงินที่เสนอให้ลูกค้าของคุณ

# ================================ Customizable Settings ================================
# ================================================================
# Reorder Gateways
#
# The order in which you would like your gateways to display
# ================================================================
DESIRED_GATEWAY_ORDER = [
  "Payment Gateway 1", "Payment Gateway 2", "Payment Gateway 3",
]

# ================================ Script Code (do not edit) ================================
# ================================================================
# ReorderGatewaysCampaign
#
# Reorders gateways into the entered order
# ================================================================
class ReorderGatewaysCampaign
  def initialize(desired_order)
    @desired_order = desired_order.map { |item| item.downcase.strip }
  end

  def run(cart, payment_gateways)
    payment_gateways.sort_by! { |payment_gateway| @desired_order.index(payment_gateway.name.downcase.strip) || Float::INFINITY }
  end
end

CAMPAIGNS = [
  ReorderGatewaysCampaign.new(DESIRED_GATEWAY_ORDER),
]

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

Output.payment_gateways = Input.payment_gateways