WooCommerce add product fields based on quantity

Question

Good day.

Is there a way to add input fields to a product in WooCommerce dynamically based on the amount of products selected?

I have found many solutions where there can be static fields, but none where it updates automatically. For example, if I have 3 quantity in the product page, to add a name, cell number and email address for each product and is a required field.

The options I have seen are:

https://wordpress.org/plugins/woo-checkout-field-editor-pro/

https://wordpress.org/plugins/wc-fields-factory/

HMagdy HMagdy · Accepted Answer · 2018-12-21T12:50:31

Let’s say you have a booking system on your WooCommerce store and you want to capture the additional information at checkout if someone books for more than one quantity. For e.g., if you have Events/Workshops site and want to capture Name, Email, phone, and Address of everyone who attended your Event/Workshop and someone books for 3 quantity on your website then you need additional dynamic custom fields to capture the details of other 2 attendees. So if someone adds 3 quantity to the cart then the checkout page adds additional fields for other 2 attendees if 4 quantity added to the cart then it adds fields for other 3 attendees.

Within the following function, we will check how many quantities the user has in their cart and adds the additional fields to the checkout page if the quantity is more than 1. And save the field values to display it in the order in admin side.

Go to your functions.php file and add the following code at the end of the file or you can create your own plugin to add this function.

//Custom WooCommerce Checkout Fields based on Quantity
add_action( 'woocommerce_before_order_notes', 'person_details' );

function person_details($checkout) {
    global $woocommerce;
$count = $woocommerce->cart->cart_contents_count;
$i = 1;
       for($k=2; $k<= $count; $k++) {
        $i++;
           print ('<h3>Please enter details of attendee '.$i.'</h3>');
        woocommerce_form_field( 'cstm_full_name'.$i, array(
            'type'          => 'text',
            'class'         => array('my-field-class form-row-wide'),
            'label'         => __('Full name'),
            'placeholder'   => __('Enter full name'),
            ),
            $checkout->get_value( 'cstm_full_name'.$i ));
        echo '<div class="clear"></div>';
        woocommerce_form_field( 'cstm_phone'.$i, array(
            'type'          => 'text',
            'class'         => array('my-field-class form-row-first'),
            'label'         => __('Phone'),
            'placeholder'   => __('Enter phone number'),
            ),
            $checkout->get_value( 'cstm_phone'.$i ));
        woocommerce_form_field( 'cstm_email'.$i, array(
            'type'          => 'email',
            'class'         => array('my-field-class form-row-last'),
            'label'         => __('Email address'),
            'placeholder'   => __('Enter email address'),
            ),
            $checkout->get_value( 'cstm_email'.$i ));
        echo '<div class="clear"></div>';
        woocommerce_form_field( 'cstm_address'.$i, array(
            'type'          => 'textarea',
            'class'         => array('my-field-class form-row-wide'),
            'label'         => __('Full address'),
            'placeholder'   => __('Enter full address'),
            ),
            $checkout->get_value( 'cstm_address'.$i ));
}
}

/**
 * Save value of fields
 */

add_action('woocommerce_checkout_update_order_meta', 'customise_checkout_field_update_order_meta');

function customise_checkout_field_update_order_meta($order_id)
{
    global $woocommerce;
$count = $woocommerce->cart->cart_contents_count;
$i = 1;
       for($k=2; $k<= $count; $k++) {
        $i++;
    if (!empty($_POST['cstm_full_name'.$i])) {
        update_post_meta($order_id, 'Name of Attendee'.$i, sanitize_text_field($_POST['cstm_full_name'.$i]));
    }
    if (!empty($_POST['cstm_phone'.$i])) {
        update_post_meta($order_id, 'Phone of Attendee'.$i, sanitize_text_field($_POST['cstm_phone'.$i]));
    }
    if (!empty($_POST['cstm_email'.$i])) {
        update_post_meta($order_id, 'Email of Attendee'.$i, sanitize_text_field($_POST['cstm_email'.$i]));
    }
    if (!empty($_POST['cstm_address'.$i])) {
        update_post_meta($order_id, 'Address of Attendee'.$i, sanitize_text_field($_POST['cstm_address'.$i]));
    }
}
}

Dynamic custom fields on checkout page

Custom Fields value on order page in admin

Reference

WooCommerce add product fields based on quantity

1 Answers