Code-Snippets-Functions/Execute a function on a child site/WooCommerce/hide-add-to-cart-if-product-purchased-before.txt

function wc_bought_before_woocommerce_add_to_cart_validation( $is_purchasable, $instance ){
    
    $current_user = wp_get_current_user();
    if ( wc_customer_bought_product( $current_user->user_email, $current_user->ID, $instance->get_id()) ) {
        $is_purchasable = false;
    }
    return $is_purchasable;
}
add_filter( 'woocommerce_is_purchasable', 'wc_bought_before_woocommerce_add_to_cart_validation', 10, 2 );