根据购物车页面的属性值和产品数量在 WooCommerce 中添加到购物车验证

Question

实际上，我正在尝试根据产品属性为某些产品 ID 设置添加到购物车的限制。

我所做的是：

add_action( 'woocommerce_add_to_cart_validation', 'max_add_to_cart', 10, 2 );
function max_add_to_cart( $cart_item_key, $product_id ) {

    $product = wc_get_product( $product_id );
    $maxqty = $product->get_attribute('quantite_max');
    $nbcart = get_item_qty_cart($product_id);
    if (!empty($maxqty) && $maxqty <= $nbcart) {
        wc_add_notice("cant have more than " . " {$maxqty} x {$product->get_title()} in cart.", 'error');
        return false;

    }
    return true;
}

循环运行，但在产品页面上，它没有考虑数量输入。

有没有办法在我的函数中获取数量添加输入？

Answer 1

woocommerce_add_to_cart_validation包含5个参数（后2个可选）
- $passed = return 默认为真
- $product_id = 产品 ID，这使您可以访问 wc_get_product( $product_id ) 以获取产品对象
- $quantity = 您要添加到购物车的当前数量
get_item_qty_cart 似乎不存在于您的代码中
通过在我的回答中添加评论标签进行解释

所以你得到：

function filter_woocommerce_add_to_cart_validation( $passed, $product_id, $quantity, $variation_id = null, $variations = null ) {
    // Get product object
    $product = wc_get_product( $product_id );
    
    // Flag
    $flag = false;
    
    // Is a WC product
    if ( is_a( $product, 'WC_Product' ) ) {
        // Get the product attribute value
        $max_qty = $product->get_attribute( 'quantite_max' );
        
        // NOT empty
        if ( ! empty( $max_qty ) ) {
            // If new added quantity greater than max quantity
            if ( $quantity > $max_qty ) {
                $flag = true;
            // WC Cart NOT null & Cart is NOT empty
            } elseif ( ! is_null( WC()->cart ) && ! WC()->cart->is_empty() ) {
                // Get cart items quantities
                $cart_item_quantities = WC()->cart->get_cart_item_quantities();
                
                // Product quantity in cart
                $product_qty_in_cart = isset( $cart_item_quantities[ $product_id ] ) ? $cart_item_quantities[ $product_id ] : null;
                
                // New added quantity + product quantity in cart greater than max quantity
                if ( ( $quantity + $product_qty_in_cart ) > $max_qty ) {
                    $flag = true;
                }
            }
        }
    }
    
    // True
    if ( $flag ) {
        wc_add_notice( sprintf( __( 'Cant have more than %s x %s in cart', 'woocommerce' ), $max_qty, $product->get_name() ), 'error' );
        $passed = false;
    }
    
    return $passed;
}
add_filter( 'woocommerce_add_to_cart_validation', 'filter_woocommerce_add_to_cart_validation', 10, 5 );

根据购物车页面的属性值和产品数量在 WooCommerce 中添加到购物车验证

Add to cart validation in WooCommerce based on attribute value and product quantity from the cart page

php

wordpress

product

cart

woocommerce