Problem with product quantity when add to cart - php

Question

I have a question if someone can help me with the amount of products added to the cart - when, for example, I add a product x in quantity 2, when I want to add another product in any amount, e.g. y, then it displays 2 items in the cart in the cart. The amount of product x does not reset as if and only when it "resets" itself, I can add a different amount of a different product. It is the same as if I were a customer who marked 2 quantities of the product x but withdrew without adding to the basket and chose, for example, 1 item of the product y then I read 2 items of the product x. Does anyone know how to solve it? Please help. Website - https://www.fabrykaprzypraw.com.pl/blog22/
/**
* Add quantity field on the archive page.
*/
function custom_quantity_field_archive() {
$product = wc_get_product( get_the_ID() );
//if ( ! $product->is_sold_individually() && 'variable' != $product->product_type && $product->is_purchasable() ) { //niki. ako ne go iskash za variable products. az go iskam
if ( ! $product->is_sold_individually() && $product->is_purchasable() ) {
woocommerce_quantity_input( array( 'min_value' => 1, 'max_value' => $product->backorders_allowed() ? '' : $product->get_stock_quantity() ) );
}
}
add_action( 'woocommerce_after_shop_loop_item', 'custom_quantity_field_archive', 15, 9 );
function custom_add_to_cart_quantity_handler() {
wc_enqueue_js( '
jQuery( "body" ).on( "click", ".quantity input", function() {
return false;
});
jQuery( "body" ).on( "change input", ".quantity .qty", function() {
var add_to_cart_button = jQuery( this ).parents( ".product" ).find( ".add_to_cart_button" );
// For AJAX add-to-cart actions
add_to_cart_button.attr( "data-quantity", jQuery( this ).val() );
// For non-AJAX add-to-cart actions
add_to_cart_button.attr( "href", "?add-to-cart=" + add_to_cart_button.attr( "data-product_id" ) + "&quantity=" + jQuery( this ).val() );
});
' );
}
add_action( 'init', 'custom_add_to_cart_quantity_handler' );

Answer 1

I had the same issue and I have solved it by changing the JavaScript a little bit. This JavaScript must be inside your functions.php in the method custom_add_to_cart_quantity_handler
wc_enqueue_js( '
$(".woocommerce .products").on("click", ".quantity input", function() {
return false;
});
$(".woocommerce li.product").on("change input", ".quantity .qty", function() {
var add_to_cart_button = $(this).parent( ".quantity" ).parent(".product").find(".add_to_cart_button");
console.log(add_to_cart_button);
// For AJAX add-to-cart actions
add_to_cart_button.attr("data-quantity", $(this).val());
});
// Trigger on Enter press
$(".woocommerce .products").on("keypress", ".quantity .qty", function(e) {
if ((e.which||e.keyCode) === 13) {
$( this ).parents(".product").find(".add_to_cart_button").trigger("click");
}
});
' );