根据Woocommerce中的产品类别，购物车中的最大商品数量

I am trying to customize the shop such that Category named Quantity4 allows only 4 items to be added in the cart and category named Quantity6 allows only items to be added in the cart.

我正在尝试自定义商店，以便名为Quantity4的类别仅允许在购物车中添加4个商品，名为Quantity6的类别仅允许在购物车中添加商品。

As far as I can get, this can be achieved using nested if statements, but somehow this doesn't work.

据我所知，这可以使用嵌套的if语句来实现，但不知怎的，这不起作用。

add_filter( 'woocommerce_add_to_cart_validation', 'only_four_items_allowed_add_to_cart', 10, 3 );

function only_four_items_allowed_add_to_cart( $passed, $product_id, $quantity ) {

$cart_items_count = WC()->cart->get_cart_contents_count();
$total_count = $cart_items_count + $quantity;

if(has_term('quantity4','product_cat',$product_id )){
if($cart_items_count >= 4 || $total_count > 4){
        // Set to false
        $passed = false;
        // Display a message
        wc_add_notice( __( "You Chose a Box of 4 Items, Can't Add More", "woocommerce" ), "error" );
    }
  }

  else if (has_term('quantity6','product_cat',$product_id )){
    if($cart_items_count >= 6 || $total_count > 6){
        // Set to false
        $passed = false;
        // Display a message
        wc_add_notice( __( "You Chose a Box of 6 Items, Can't Add More", "woocommerce" ), "error" );
    }
}

return $passed;
}

Can someone pls point out what am I doing wrong here and how to get the desired results.

有人可以指出我在这里做错了什么以及如何获得理想的结果。

1 个解决方案

#1

I have revisited your code a bit and it's working. Please try this:

我重新访问了你的代码并且它正在运行。请试试这个：

add_filter( 'woocommerce_add_to_cart_validation', 'only_four_items_allowed_add_to_cart', 10, 3 );
function only_four_items_allowed_add_to_cart( $passed, $product_id, $quantity ) {
    $cart_count = WC()->cart->get_cart_contents_count();
    $total_count = $cart_count + $quantity;

    if ( has_term( 'quantity4','product_cat',$product_id ) && ( $cart_count >= 4 || $total_count > 4 ) ) {
        $passed = false; // Set to false
        $notice = __( "You Chose a Box of 4 Items, Can't Add More", "woocommerce" ); // Notice to display
    }
    elseif ( has_term( 'quantity6','product_cat',$product_id ) && ( $cart_count >= 6 || $total_count > 6 ) ) {
        $passed = false; // Set to false
        $notice = __( "You Chose a Box of 6 Items, Can't Add More", "woocommerce" ); // Notice to display
    }
    if( ! $passed )
        wc_add_notice( $notice, 'error' );

    return $passed;
}

Code goes in function.php file of your active child theme (or active theme).

代码位于活动子主题（或活动主题）的function.php文件中。

Tested and works.

经过测试和工作。

#1