你的函数只有两个小错误:
在以下行中,您错误地访问了$product->ID 属性。你应该使用$product->get_id() 方法:
$product_co_price = get_post_meta($product->ID, '_co_price');
此外,如果在get_post_meta() 函数中,您没有将第三个参数设为 true,您将返回错误,因为在以下几行中您将比较当前价格(字符串) 以及从自定义元(数组)中获得的价格。欲了解更多信息:
所以正确的函数是:
// shows a customized price based on the user role
add_filter( 'woocommerce_product_get_price', 'custom_price', 10, 2);
add_filter( 'woocommerce_product_variation_get_price', 'custom_price', 10, 2 );
add_filter( 'woocommerce_product_get_regular_price', 'custom_price', 10, 2 );
add_filter( 'woocommerce_product_get_sale_price', 'custom_price', 10, 2 );
function custom_price( $price, $product ) {
// if the user is not logged in or has a role other than "customer_2", it shows the default price of the product
$user = wp_get_current_user();
if ( ! in_array( 'customer_2', (array) $user->roles ) ) {
return $price;
}
// gets the price to display for the user role "customer_2"
$co_price = get_post_meta( $product->get_id(), '_co_price', true );
// if the custom meta is not set or is empty or equal to zero it shows the default price
if ( ! isset( $co_price ) || empty( $co_price ) || $co_price == 0 ) {
return $price;
// otherwise it shows the custom price
} else {
return $co_price;
}
return $price;
}
如果您在可变产品页面上显示价格范围,您需要根据自定义元产品 _co_price 更改逻辑。
所以你需要使用:
// shows the price range of the variable product based on the price of the custom meta "_co_price" of each single variation
add_filter( 'woocommerce_variable_price_html', 'show_price_range_based_on_custom_meta_price', 99, 2 );
function show_price_range_based_on_custom_meta_price( $price, $product ) {
// initializes the array which will contain all variation prices
$prices = array();
$variation_ids = $product->get_children();
foreach ( $variation_ids as $variation_id ) {
$variation = wc_get_product( $variation_id );
// gets the net default price
$prices[] = $variation->get_price();
// gets the price from the custom meta product
$co_price = $variation->get_meta( '_co_price', true );
// replaces the comma with the period to make it numeric
$co_price = str_replace( ',', '.', $co_price );
$prices[] = $co_price;
}
// removes empty values from the array
$prices = array_filter($prices);
// gets the minimum value from the array
$min_price = min( $prices );
// gets the maximum value from the array
$max_price = max( $prices );
if ( $min_price == $max_price ) {
$price = wc_price( $min_price );
} else {
$price = wc_format_price_range( $min_price, $max_price );
}
return $price;
}
代码已经过测试并且可以运行。将其添加到活动主题的 functions.php 中。