在Woocommerce商店页面中显示添加到购物车ajax的数量框

Question

I am new to Woocommerce. I was trying to show the quantity box in the shop page. I have used the below code and it's working as expected:

add_action( 'woocommerce_before_shop_loop', 'handsome_bearded_guy_select_variations' );

function handsome_bearded_guy_select_variations() {
remove_action( 'woocommerce_after_shop_loop_item', 'woocommerce_template_loop_add_to_cart', 10 );
add_action( 'woocommerce_after_shop_loop_item', 'woocommerce_template_single_add_to_cart', 30 );
}

But the problem is that ajax add to cart button got replaced with default one.

How can I enable back the ajax functionality on add to cart button with quantity field for Woocommerce archives pages?

Answer 1

Updated (2019) - Removed the quantity bug

This can be done with the following code, that is very similar to the original one, using a custom hooked function in dedicated woocommerce_loop_add_to_cart_link filter hook and a bit of jQuery.

Now as it's ajax powered like before, once adding to cart, you will get the additional button "View cart" on right side (that you can hide: see at the end how).

You will have to make some CSS styling on this...

The code:

add_filter( 'woocommerce_loop_add_to_cart_link', 'quantity_inputs_for_loop_ajax_add_to_cart', 10, 2 );
function quantity_inputs_for_loop_ajax_add_to_cart( $html, $product ) {
    if ( $product && $product->is_type( 'simple' ) && $product->is_purchasable() && $product->is_in_stock() && ! $product->is_sold_individually() ) {
        // Get the necessary classes
        $class = implode( ' ', array_filter( array(
            'button',
            'product_type_' . $product->get_type(),
            $product->is_purchasable() && $product->is_in_stock() ? 'add_to_cart_button' : '',
            $product->supports( 'ajax_add_to_cart' ) ? 'ajax_add_to_cart' : '',
        ) ) );

        // Adding embeding <form> tag and the quantity field
        $html = sprintf( '%s%s<a rel="nofollow" href="%s" data-quantity="%s" data-product_id="%s" data-product_sku="%s" class="%s">%s</a>%s',
            '<form class="cart">',
            woocommerce_quantity_input( array(), $product, false ),
            esc_url( $product->add_to_cart_url() ),
            esc_attr( isset( $quantity ) ? $quantity : 1 ),
            esc_attr( $product->get_id() ),
            esc_attr( $product->get_sku() ),
            esc_attr( isset( $class ) ? $class : 'button' ),
            esc_html( $product->add_to_cart_text() ),
            '</form>'
        );
    }
    return $html;
}

add_action( 'wp_footer' , 'archives_quantity_fields_script' );
function archives_quantity_fields_script(){
    <script type='text/javascript'>
        ?>
        jQuery(function($){
            // Update quantity
            $(".add_to_cart_button.product_type_simple").on('click input', function() {
                $(this).data('quantity', $(this).parent().find('input.qty').val() ); 
            });        

            // On "adding_to_cart" delegated event, removes others "view cart" buttons 
            $(document.body).on("adding_to_cart", function() {
                $(".added_to_cart").remove();
            });
        });
    </script>
    <?php //endif;
}

Code goes in function.php file of your active child theme (active theme). Tested and works.

---

Hiding additional "View cart" button button (when using ajax add to cart):

Then you can first remove this from the jQuery code:

// On "adding_to_cart" delegated event, removes others "view cart" buttons
$(document.body).on("adding_to_cart", function() {
    $(".added_to_cart").remove();
});

1) You can add this CSS rule to your styles.css file located in your active theme:

a.added_to_cart.wc-forward {
    display:none;
}

2) You can use the following hoocked function (first option is the best way):

add_action( 'wp_head' , 'hide_ajax_view_cart_button' );
function hide_ajax_view_cart_button(){
    if( is_shop() || is_product_category() || is_product_tag() ): ?>
    <style>
        a.added_to_cart.wc-forward {
            display:none;
        }
    </style>
    <?php endif;
}

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

tested and works.