有几种方法。例如,您确实可以add a custom field to the admin product settings。
但不一定要复杂,为此安装一个额外的插件太牵强了!
多次添加相同的代码也是一个坏主意,因为这样您将多次浏览购物车。这不仅会减慢您的网站速度,而且最终还会导致错误。
在我看来,添加一个数组,不仅可以确定产品 ID,还可以立即根据数组键确定额外费用。
所以你得到:
function action_woocommerce_cart_calculate_fees( $cart ) {
if ( is_admin() && ! defined( 'DOING_AJAX' ) )
return;
// Add in the following way: Additional fee => Product ID
$settings = array(
10 => 1234,
20 => 5678,
5 => 30,
2 => 815,
);
// Initialize
$additional_fee = 0;
// Loop through cart contents
foreach ( $cart->get_cart_contents() as $cart_item ) {
// Get product id
$product_id = $cart_item['product_id'];
// In array, get the key as well
if ( false !== $key = array_search( $product_id, $settings ) ) {
$additional_fee += $key;
}
}
// If greater than 0, so a matching product ID was found in the cart
if ( $additional_fee > 0 ) {
// Add additional fee (total)
$cart->add_fee( __( 'Additional fee', 'woocommerce' ), $additional_fee, false );
}
}
add_action( 'woocommerce_cart_calculate_fees', 'action_woocommerce_cart_calculate_fees', 10, 1 );
可选:
要单独显示每笔费用的加法,让客户知道哪个费用是指哪个产品,可以使用多维数组。
将必要的信息添加到设置数组中,其他一切都会自动发生。
所以你得到:
function action_woocommerce_cart_calculate_fees( $cart ) {
if ( is_admin() && ! defined( 'DOING_AJAX' ) )
return;
// Settings
$settings = array(
array(
'product_id' => 30,
'amount' => 5,
'name' => __( 'Additional service fee', 'woocommerce' ),
),
array(
'product_id' => 813,
'amount' => 10,
'name' => __( 'Packing fee', 'woocommerce' ),
),
array(
'product_id' => 815,
'amount' => 15,
'name' => __( 'Another fee', 'woocommerce' ),
),
);
// Loop through cart contents
foreach ( $cart->get_cart_contents() as $cart_item ) {
// Get product id
$product_id = $cart_item['product_id'];
// Loop trough settings array
foreach ( $settings as $setting ) {
// Search for the product ID
if ( $setting['product_id'] == $product_id ) {
// Add fee
$cart->add_fee( $setting['name'], $setting['amount'], false );
}
}
}
}
add_action( 'woocommerce_cart_calculate_fees', 'action_woocommerce_cart_calculate_fees', 10, 1 );
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