Question

我有一个功能，可以将购物车中的最大商品数量设置为16。因此，用户不能结帐超过16件商品。

我还正在运行一个插件，该插件在添加优惠券时会向free_gift添加一个$cart_item array密钥。

问题在于，当用户添加16项+ free_gift =总数为17项时，无法进行结帐。

如何将free_gift从添加到购物车中的数量中删除？

示例：

让Woocommerce购物车认为16个项目+ 1 free_gift = 16个项目
让Woocommerce购物车认为12项+ 1 free_gift = 12项

到目前为止，我的代码允许添加free_gifts超过最大16个限制，但不应用16个项目的最大规则：

    // Set a maximum number of products requirement before checking out
add_action( 'woocommerce_check_cart_items', 'spyr_set_max_num_products' );
function spyr_set_max_num_products() {
    // Only run in the Cart or Checkout pages
    if( is_cart() || is_checkout() ) {

        $cart_num_products = 0;

        foreach ( WC()->cart->cart_contents as $cart_item_key => $cart_item ) {

            // HERE I AM TRYING TO SKIP AND PREVENT CART ITEMS OF FREE_GIFTS BEING COUNTED
            if ( isset( $cart_item['free_gift'] ) ) {
                continue;
            }

            // Count for regular products.
                   $cart_num_products++;
        }

        // Set the maximum number of products before checking out
        $maximum_num_products = 16;

        // Compare values and add an error is Cart's total number of products
        // happens to be less than the minimum required before checking out.
        // Will display a message along the lines of
        // A Maximum of 16 products is allowed before checking out. (Cont. below)   
        if( $cart_num_products > $maximum_num_products ) {
            // Display our error message
            wc_add_notice( sprintf( '<strong>A Maximum of %s snacks are allowed per order.</strong>' 
                . '<br />Current number of snacks: %s.',
                $maximum_num_products,
                $cart_num_products ),
            'error' );
        }
    }
}

Answer 1

尝试以下操作，这将从购物车中删除您的自定义免费商品：

add_action( 'woocommerce_check_cart_items', 'max_allowed_cart_items' );
function max_allowed_cart_items() {
    // Only run in the Cart or Checkout pages
    if( is_cart() || is_checkout() ) {

        // Set the maximum number of products before checking out
        $max_items_count = 16;

        $cart_items_count = WC()->cart->get_cart_contents_count( );

        foreach ( WC()->cart->get_cart() as $cart_item ) {
            if ( isset( $cart_item['free_gift'] ) ) {
                $cart_items_count -= $cart_item['quantity'];
            }
        }

        if( $cart_items_count > $max_items_count ) {
            // Display our error message
            wc_add_notice( sprintf( '<strong>A Maximum of %s snacks are allowed per order.</strong>' 
                . '<br />Current number of snacks: %s.',
                $max_items_count,
                $cart_items_count ),
            'error' );
        }
    }
}

代码进入您的活动子主题（或活动主题）的function.php文件中。应该可以。

Answer 2

首先检查免费物品是否在购物车中。在这种情况下，您需要先计算函数中的“ -1”项，然后才能使用结帐功能。

    function free_product_in_cart($free_product_id) {

        $free_product_cart_id = WC()->cart->generate_cart_id( $free_product_id );
        return WC()->cart->find_product_in_cart( $free_product_cart_id ); //Return true when the free product is in the cart

    }

因此，您随后更新逻辑以进行检查：

 if(free_product_in_cart(your product id) { 
       $free_item_space = 1;
 } else {
       $free_item_space = 0;
 }

 if( $cart_num_products > $maximum_num_products + $free_item_space) {
        // Display our error message
        wc_add_notice( sprintf( '<strong>A Maximum of %s snacks are allowed per order.</strong>' 
            . '<br />Current number of snacks: %s.',
            $maximum_num_products,
            $cart_num_products ),
        'error' );
    }

Woocommerce从购物车中删除free_gift

2 个答案: