WooCommerce 特定類別產品的最低訂購費

Question

我想在我的 woocommerce 商店中為特定金額（價值，而不是數量）下的訂單添加費用。

我正在使用“ 基於 WooCommerce 動態最低訂單金額的費用”答案代碼，效果很好。

現在我正在嘗試更改此功能並將其僅應用於特定產品類別中的項目。 基本上，我必須將購物車中與特定類別匹配的所有產品的價值相加，並使用此值計算費用。

我怎樣才能達到這個目標？

Answer 1

以下重新訪問的代碼將處理特定定義的產品類別。 您必須定義：

• 您在第一個功能中的特定產品類別。
• 第二個和第三個函數中的最小訂單量。

編碼：

// Get the cart items subtotal amount from specific product categories
function get_specific_cart_items_total( $cart ) {
    $categories   = array('t-shirts'); // <=== Define your product categories
    $items_amount = 0; // Initializing

    // Loop through cart items
    foreach( $cart->get_cart() as $item ) {
        if( has_term( $categories, 'product_cat', $item['product_id'] ) ) {
            $items_amount += $item['line_subtotal'];
        }
    }
    return $items_amount;
}

// Add a custom fee (displaying a notice in cart page)
add_action( 'woocommerce_cart_calculate_fees', 'add_custom_surcharge', 10, 1 );
function add_custom_surcharge( $cart ) {
    if ( is_admin() && ! defined( 'DOING_AJAX' ) )
        return;

    if ( did_action( 'woocommerce_cart_calculate_fees' ) >= 2 )
        return;

    $min_price     = 200; // The minimal cart amount

    $current_price = get_specific_cart_items_total( $cart );
    $custom_fee    = $min_price - $current_price;

    if ( $custom_fee > 0 ) {
        $cart->add_fee( __('Minimum Order Adjustment'), $custom_fee, true );

        // NOTICE ONLY IN CART PAGE
        if( is_cart() ){
            wc_print_notice( get_custom_fee_message( $min_price, $current_price ), 'error' );
        }
    }
}

// Displaying the notice on checkout page
add_action( 'woocommerce_before_checkout_form', 'custom_surcharge_message', 10 );
function custom_surcharge_message(  ) {
    $min_price     = 200; // The minimal cart amount

    $cart          = WC()->cart;
    $current_price = get_specific_cart_items_total( $cart );
    $custom_fee    = $min_price - $current_price;

    // NOTICE ONLY IN CHECKOUT PAGE
    if ( $custom_fee > 0 ) {
        wc_print_notice( get_custom_fee_message( $min_price, $current_price ), 'error' );
    }
}

// The fee notice message
function get_custom_fee_message( $min_price, $current_price ) {
    return sprintf(
        __('We have a minimum %s per order from specific categories. As your current order is only %s, an additional fee will be applied.', 'woocommerce'),
        wc_price( $min_price ),
        wc_price( $current_price )
    );
}

代碼位於您的活動子主題（或活動主題）的 functions.php 文件中。 測試和工作。

---

選項：要也處理父產品類別，請添加以下附加功能：

// Custom conditional function that handle parent product categories too
function has_product_categories( $categories, $product_id = 0 ) {
    $parent_term_ids = $categories_ids = array(); // Initializing
    $taxonomy        = 'product_cat';
    $product_id      = $product_id == 0 ? get_the_id() : $product_id;

    if( is_string( $categories ) ) {
        $categories = (array) $categories; // Convert string to array
    }

    // Convert categories term names and slugs to categories term ids
    foreach ( $categories as $category ){
        $result = (array) term_exists( $category, $taxonomy );
        if ( ! empty( $result ) ) {
            $categories_ids[] = reset($result);
        }
    }

    // Loop through the current product category terms to get only parent main category term
    foreach( get_the_terms( $product_id, $taxonomy ) as $term ){
        if( $term->parent > 0 ){
            $parent_term_ids[] = $term->parent; // Set the parent product category
            $parent_term_ids[] = $term->term_id; // (and the child)
        } else {
            $parent_term_ids[] = $term->term_id; // It is the Main category term and we set it.
        }
    }
    return array_intersect( $categories_ids, array_unique($parent_term_ids) ) ? true : false;
}

並在第一個函數中替換這一行：

if( has_term( $categories, 'product_cat', $item['product_id'] ) ) {

這樣：

if( has_product_categories( $categories, $item['product_id'] ) ) {