对 WooCommerce 中最便宜的购物车商品应用 100% 的优惠券折扣

Apply a 100% coupon discount on the cheapest cart item in WooCommerce

我使用普通的 woocommerce 优惠券方法创建了一张“BOGOF”(买一送一)优惠券。

优惠券为用户购买购物车中的其他 1 件商品提供 100% 的百分比折扣。


Coupon settings

General:

  • Discount type: Percentage discount Coupon

  • amount: 100

Usage limits:

  • Limit usage to X items: 1

使用时:

期望:


使用下面的代码我尝试实现我的目标,不幸的是没有得到想要的结果

function filter_woocommerce_coupon_get_discount_amount( $discount, $discounting_amount, $cart_item, $single, $instance ) { 
    $price_array = array();

    foreach( $cart_item as $item ) {
        echo $item->price;
        if($item->price > 0){
            array_push($price_array, $item->price);
        }
    }

    $lowestPrice = min($price_array);

    if( $lowestPrice < $discount ){
        $discount = $lowestPrice; 
    }

    return $discount; 
}    
add_filter( 'woocommerce_coupon_get_discount_amount', 'filter_woocommerce_coupon_get_discount_amount', 10, 5 );

首先,您的代码中存在一个很大的错误,因为 $cart_item 变量挂钩参数是当前购物车项目而不是购物车项目数组...

以下将对最便宜的购物车商品(注释代码)应用 100% 的优惠券折扣:

add_filter( 'woocommerce_coupon_get_discount_amount', 'filter_wc_coupon_get_discount_amount', 10, 5 );
function filter_wc_coupon_get_discount_amount( $discount_amount, $discounting_amount, $cart_item, $single, $coupon ) { 
    // Define below your existing coupon code
    $coupon_code = 'BOGOF';

    // Only for a defined coupon code
    if( strtolower( $coupon_code ) !== $coupon->get_code() ) 
        return $discount_amount;

    $items_prices = [];
    $items_count  = 0;

    // Loop through cart items
    foreach( WC()->cart->get_cart() as $key => $item ){
        // Get the cart item price (the product price)
        if ( wc_prices_include_tax() ) {
            $price = wc_get_price_including_tax( $item['data'] );
        } else {
            $price = wc_get_price_excluding_tax( $item['data'] );
        }

        if ( $price > 0 ){
            $items_prices[$key] = $price;
            $items_count       += $item['quantity'];
        }
    }

    // Only when there is more than one item in cart
    if ( $items_count > 1 ) {
        asort($items_prices);  // Sorting prices from lowest to highest

        $item_keys = array_keys($items_prices);
        $item_key  = reset($item_keys); // Get current cart item key

        // Targeting only the current cart item that has the lowest price
        if ( $cart_item['key'] == $item_key ) {
            return reset($items_prices); // return the lowest item price as a discount
        }
    } else {
        return 0;
    }
}

代码进入您的活动子主题(或活动主题)的 functions.php 文件。已测试并有效。

如果您想使用自己的折扣不仅 100% 将 return reset($items_prices); 替换为 return $discount_amount;

我对此做了一个相当小的调整 - 我注意到如果我的购物车中有很多商品,它会给最便宜的多种商品 100% 的折扣。因此,如果用户有 10 件 T 恤,每件 10 英镑,则可以享受 100 英镑的折扣。我在下面稍微修改了一下,这可能对以后的人有帮助:

add_filter('woocommerce_coupon_get_discount_amount', 'tfcc_cheapest_free', 10, 5);
function tfcc_cheapest_free($discount, $discounting_amount, $cart_item, $single, $coupon) {
    // IF TYPE MATCHES PERFORM CUSTOM CALCULATION
    if ($coupon->type == 'cheapest_free'){

      $items_prices = [];
          $items_count  = 0;

          // Loop through cart items
          foreach( WC()->cart->get_cart() as $key => $item ){
              // Get the cart item price (the product price)
              if ( wc_prices_include_tax() ) {
                  $price = wc_get_price_including_tax( $item['data'] );
              } else {
                  $price = wc_get_price_excluding_tax( $item['data'] );
              }

              if ( $price > 0 ){
                  $items_prices[$key] = $price;
                  $items_count       += $item['quantity'];
              }
          }

          // Only when there is more than one item in cart
          if ( $items_count > 1 ) {
              asort($items_prices);  // Sorting prices from lowest to highest

              $item_keys = array_keys($items_prices);
              $item_key  = reset($item_keys); // Get current cart item key

              // Targeting only the current cart item that has the lowest price
              if ( $cart_item['key'] == $item_key ) {
                  return reset($items_prices)/$cart_item['quantity']; // return the lowest item price as a discount
              }
          } else {
              return 0;
          }

    }

}