pixelperfectat/magento2-module-checkout-discount-display

Per-item discount messages and strikethrough pricing in the cart

dev-main 2026-02-11 19:20 UTC

Requires

• php: ^8.3
• magento/framework: ^103.0
• magento/module-checkout: ^100.0
• magento/module-quote: ^101.0
• magento/module-sales-rule: ^101.0
• pixelperfectat/magento2-module-discount-exclusion: *

Requires (Dev)

• phpunit/phpunit: ^10.0

Suggests

• hyva-themes/magento2-default-theme: Required for cart page strikethrough pricing template

MIT

README

Per-item discount messages and strikethrough pricing for Magento 2 carts.

Features

• Strikethrough pricing — regular catalog price crossed out next to the discounted price on cart line items
• Discount exclusion messages — explains why an item was excluded from a coupon or why only a partial discount was applied
• Coupon discount messages — shows the coupon discount amount per item
• Affiliate discount messages — shows affiliate-specific discount amounts (requires Amasty Affiliate)
• Cart drawer support — adds price data to customer section data for FPC-compatible cart drawers
• GraphQL support — extends CartItemPrices with regular_price, has_discount, and discount_messages fields
• Multi-store — all features configurable per store view
• Translations — included for en_US, de_DE, it_IT, fr_FR, es_ES

Requirements

• PHP 8.3+
• Magento 2.4.7+
• pixelperfectat/magento2-module-discount-exclusion

Optional

• Hyvä Theme — required for cart page strikethrough pricing template
• Amasty Affiliate — enables affiliate discount detection and messaging

Installation

composer require pixelperfectat/magento2-module-checkout-discount-display
bin/magento module:enable PixelPerfect_CheckoutDiscountDisplay
bin/magento setup:upgrade

Configuration

Stores > Configuration > Sales > Checkout Discount Display > General

Setting	Description	Default
Enable Discount Messages	Show per-item messages for exclusions, coupons, and affiliate discounts	Yes
Enable Strikethrough Pricing	Show regular price crossed out next to discounted price	Yes

Both settings are configurable at the default, website, and store view level.

GraphQL

The module extends the CartItemPrices type:

{
  cart(cart_id: "...") {
    items {
      prices {
        regular_price {
          value
          currency
        }
        has_discount
        discount_messages
      }
    }
  }
}

How It Works

1. An observer on sales_quote_collect_totals_after iterates visible cart items and attaches discount messages via AbstractItem::addMessage()
2. Messages are recalculated on every collectTotals() call — no persistent storage needed
3. A plugin on Magento\Checkout\CustomerData\AbstractItem::getItemData() adds regular_price, regular_price_formatted, and has_discount to section data for the cart drawer
4. The Hyvä template override renders strikethrough pricing when the regular price differs from the final price

License

MIT