我正在尝试自动触发优惠券,以便在购物车中有4个商品时专门用于购物车.

优惠券是在网站“tasterbox”的Woocommerce后端预先创建的

我正在使用此答案代码的修订版本：
Add WooCommerce coupon code automatically based on product categories

这是我的代码版本：

add_action( 'woocommerce_before_calculate_totals', 'wc_auto_add_coupons', 10, 1 );
function wc_auto_add_coupons( $cart_object ) {

    // Coupon code
    $coupon = 'tasterbox';

    if ( is_admin() && ! defined( 'DOING_AJAX' ) )
        return;

    // Initialising variables
    $is_match = false;
    $taster_item_count = 4;

    //  Iterating through each cart item
    foreach ( WC()->cart->get_cart() as $cart_item ) {
        // If cart items match 4
        if( $cart->cart_contents_count == $taster_item_count ){
            $is_match = true; // Set to true
            break; // stop the loop
        }
    }

    // If conditions are matched add the coupon discount
    if( $is_match && ! $cart_object->has_discount( $coupon )){
        // Apply the coupon code
        $cart_object->add_discount( $coupon );

        // Optionally display a message 
        wc_add_notice( __('TASTER BOX ADDED'), 'notice');
    } 
    // If conditions are not matched and coupon has been appied
    elseif( ! $has_category && $cart_object->has_discount( $coupon )){
        // Remove the coupon code
        $cart_object->remove_coupon( $coupon );

        // Optionally display a message 
        wc_add_notice( __('SORRY, TASTERBOX NOT VALID'), 'alert');
    }
}

但是,当购物车中有4件商品时,我无法自动应用优惠券.这似乎很简单,但我被困住了.

任何帮助赞赏.

解决方法:

您的代码中存在一些小错误和错误.请尝试以下方法：

add_action( 'woocommerce_before_calculate_totals', 'auto_add_coupon_based_on_cart_items_count', 25, 1 );
function auto_add_coupon_based_on_cart_items_count( $cart ) {
    if ( is_admin() && ! defined( 'DOING_AJAX' ) )
        return;

    // Setting and initialising variables
    $coupon = 'tasterbox'; // <===  Coupon code
    $item_count = 4; // <===  <===  Number of items
    $matched    = false;

    if( $cart->cart_contents_count >= $item_count ){
        $matched = true; // Set to true
    }

    // If conditions are matched add coupon is not applied
    if( $matched && ! $cart->has_discount( $coupon )){
        // Apply the coupon code
        $cart->add_discount( $coupon );

        // Optionally display a message
        wc_add_notice( __('TASTER BOX ADDED'), 'notice');
    }
    // If conditions are not matched and coupon has been appied
    elseif( ! $matched && $cart->has_discount( $coupon )){
        // Remove the coupon code
        $cart->remove_coupon( $coupon );

        // Optionally display a message
        wc_add_notice( __('SORRY, TASTERBOX NOT VALID'), 'error');
    }
}

代码位于活动子主题(或活动主题)的function.php文件中.经过测试和工作.