Warning: Missing argument 2 (woocommerce_loop_add_to_cart_link)

A PageLines customer contacted us today informing us that one of our old themes (dms2) was not compatible with your plugin as it has a filter for woocommerce_loop_add_to_cart_link. You told here is was a theme issue.

The code from the theme is as follows.

// switch up button class
add_filter('woocommerce_loop_add_to_cart_link', 'pl_commerce_switch_buttons', 10, 2);
function pl_commerce_switch_buttons( $button, $product ){
	$button = str_replace('button', 'btn btn-overlay', $button);
	$button = str_replace('Add to cart', '<i class="icon icon-shopping-cart"></i>', $button);
	return $button;
}

As you can see, a filter that provides 2 args, and a function that accepts 2 args, nothing wrong with this code.

Now in your plugin in the file addons/woocommerce/includes/class-woocommerce-category.php on line 77 you have an apply_filters for woocommerce_loop_add_to_cart_link but you are only passing ONE arg.

Ive told the user that there will probably be an update soon to the plugin.

Regards.

https://wordpress.org/plugins/booking-system/