Single product custom date fields not validated and saved in Woocommerce
I've added two customer date inputs to the single product page. I need them to be required and validated before adding to the cart, and would also like the dates to be shown on the cart/checkout page and in the order emails.
I found the snippets needed here, however it was only for one custom field so I adjusted to make it for two: https://www.kathyisawesome.com/add-a-custom-field-to-woocommerce-product/
The input fields show up fine, but once you hit the Add to Cart button it doesn't carry throughout the order.
Here is the code used in my functions.php file:
/*
* Display inputs on single product page
*/
function amp_custom_option_1(){
$value = isset( $_POST['_est_delivery'] ) ? sanitize_text_field( $_POST['_est_delivery'] ) : '';
printf( '<div id="dates"><div class="delivery"><label>%s</label><input name="_est_delivery" value="%s" type="date" required /></div>', __( 'Estimated Delivery Date:', 'amp-plugin-textdomain-1' ), esc_attr( $value ) );
}
add_action( 'woocommerce_before_add_to_cart_form', 'amp_custom_option_1', 9 );
function amp_custom_option_2(){
$value = isset( $_POST['_est_pickup'] ) ? sanitize_text_field( $_POST['_est_pickup'] ) : '';
printf( '<div class="pickup"><label>%s</label><input name="_est_pickup" value="%s" type="date" required /></div></div>', __( 'Estimated Pickup Date:', 'amp-plugin-textdomain-2' ), esc_attr( $value ) );
}
add_action( 'woocommerce_before_add_to_cart_form', 'amp_custom_option_2', 9 );
/*
* Validate when adding to cart
*/
function amp_add_to_cart_validation_1($passed, $product_id, $qty){
if( isset( $_POST['_est_delivery'] ) && sanitize_text_field( $_POST['_est_delivery'] ) == '' ){
$product = wc_get_product( $product_id );
wc_add_notice( sprintf( __( '%s cannot be added to the cart until you enter a delivery date.', 'amp-plugin-textdomain-1' ), $product->get_title() ), 'error' );
return false;
}
return $passed;
}
add_filter( 'woocommerce_add_to_cart_validation', 'amp_add_to_cart_validation_1', 10, 3 );
function amp_add_to_cart_validation_2($passed, $product_id, $qty){
if( isset( $_POST['_est_pickup'] ) && sanitize_text_field( $_POST['_est_pickup'] ) == '' ){
$product = wc_get_product( $product_id );
wc_add_notice( sprintf( __( '%s cannot be added to the cart until you enter a pickup date.', 'amp-plugin-textdomain-2' ), $product->get_title() ), 'error' );
return false;
}
return $passed;
}
add_filter( 'woocommerce_add_to_cart_validation', 'amp_add_to_cart_validation_2', 10, 3 );
/*
* Add custom data to the cart item
*/
function amp_add_cart_item_data_1( $cart_item, $product_id ){
if( isset( $_POST['_est_delivery'] ) ) {
$cart_item['est_delivery'] = sanitize_text_field( $_POST['_est_delivery'] );
}
return $cart_item;
}
add_filter( 'woocommerce_add_cart_item_data', 'amp_add_cart_item_data_1', 10, 2 );
function amp_add_cart_item_data_2( $cart_item, $product_id ){
if( isset( $_POST['_est_pickup'] ) ) {
$cart_item['est_pickup'] = sanitize_text_field( $_POST['_est_pickup'] );
}
return $cart_item;
}
add_filter( 'woocommerce_add_cart_item_data', 'amp_add_cart_item_data_2', 10, 2 );
/*
* Load cart data from session
*/
function amp_get_cart_item_from_session_1( $cart_item, $values ) {
if ( isset( $values['est_delivery'] ) ){
$cart_item['est_delivery'] = $values['est_delivery'];
}
return $cart_item;
}
add_filter( 'woocommerce_get_cart_item_from_session', 'amp_get_cart_item_from_session_1', 20, 2 );
function amp_get_cart_item_from_session_2( $cart_item, $values ) {
if ( isset( $values['est_pickup'] ) ){
$cart_item['est_pickup'] = $values['est_pickup'];
}
return $cart_item;
}
add_filter( 'woocommerce_get_cart_item_from_session', 'amp_get_cart_item_from_session_2', 20, 2 );
/*
* Add meta to order item
*/
function amp_add_order_item_meta_1( $item_id, $values ) {
if ( ! empty( $values['est_delivery'] ) ) {
woocommerce_add_order_item_meta( $item_id, 'est_delivery', $values['est_delivery'] );
}
}
add_action( 'woocommerce_add_order_item_meta', 'amp_add_order_item_meta_1', 10, 2 );
function amp_add_order_item_meta_2( $item_id, $values ) {
if ( ! empty( $values['est_pickup'] ) ) {
woocommerce_add_order_item_meta( $item_id, 'est_pickup', $values['est_pickup'] );
}
}
add_action( 'woocommerce_add_order_item_meta', 'amp_add_order_item_meta_2', 10, 2 );
/*
* Get item data to display in cart
*/
function amp_get_item_data_1( $other_data, $cart_item ) {
if ( isset( $cart_item['est_delivery'] ) ){
$other_data[] = array(
'name' => __( 'Estimated Delivery Date:', 'amp-plugin-textdomain-1' ),
'value' => sanitize_text_field( $cart_item['est_delivery'] )
);
}
return $other_data;
}
add_filter( 'woocommerce_get_item_data', 'amp_get_item_data_1', 10, 2 );
function amp_get_item_data_2( $other_data, $cart_item ) {
if ( isset( $cart_item['est_pickup'] ) ){
$other_data[] = array(
'name' => __( 'Estimated Pickup Date', 'amp-plugin-textdomain-2' ),
'value' => sanitize_text_field( $cart_item['est_pickup'] )
);
}
return $other_data;
}
add_filter( 'woocommerce_get_item_data', 'amp_get_item_data_2', 10, 2 );
/*
* Show custom field in order overview
*/
function amp_order_item_product_1( $cart_item, $order_item ){
if( isset( $order_item['est_delivery'] ) ){
$cart_item_meta['est_delivery'] = $order_item['est_delivery'];
}
return $cart_item;
}
add_filter( 'woocommerce_order_item_product', 'amp_order_item_product_1', 10, 2 );
function amp_order_item_product_2( $cart_item, $order_item ){
if( isset( $order_item['est_pickup'] ) ){
$cart_item_meta['est_pickup'] = $order_item['est_pickup'];
}
return $cart_item;
}
add_filter( 'woocommerce_order_item_product', 'amp_order_item_product_2', 10, 2 );
/*
* Add the field to order emails
*/
function amp_email_order_meta_fields_1( $fields ) {
$fields['est_delivery'] = __( 'Estimated Delivery Date:', 'amp-plugin-textdomain-1' );
return $fields;
}
add_filter('woocommerce_email_order_meta_fields', 'amp_email_order_meta_fields_1');
function amp_email_order_meta_fields_2( $fields ) {
$fields['est_delivery'] = __( 'Estimate Pickup Date:', 'amp-plugin-textdomain-2' );
return $fields;
}
add_filter('woocommerce_email_order_meta_fields', 'amp_email_order_meta_fields_2');
I'm not sure what is wrong with my code? Any help is appreciated.
Solution
There was some errors and mistakes. I have changed and removed some hooks, remove unnecessary code, merged functions, revisited all your code. As Your 2 dates fields are on single product pages, they will be related to cart items and order items (so order items meta data).
I have set your 2 date fields slugs and labels in the first function, inside an array. Then I call that function everywhere else and I use a foreach loop to process each field. This avoid repetitions, optimize and compact the code.
The code (commented):
// Utility function that contain the 2 field keys and labels pairs used on all other functions
function get_date_label_keys(){
$text_domain = 'woocommerce';
return array( 'est_delivery' => __( 'Estimated Delivery Date', $text_domain ),
'est_pickup' => __( 'Estimated Pickup Date', $text_domain ) );
}
// Display custom fields on single product page (hook replaced)
add_action( 'woocommerce_before_add_to_cart_button', 'amp_display_custom_fields', 20 );
function amp_display_custom_fields(){
echo '<div id="dates">';
// Loop through each custom field
foreach( get_date_label_keys() as $key => $label ){
$class = str_replace('est_', '', $key); // The class
$value = isset($_POST[$key]) ? sanitize_text_field($_POST[$key]) : ''; // Display the value
printf( '<div class="%s"><label>%s:</label> <input type="date" name="%s" value="%s" required /></div>', $class, $label, $key, $value );
}
echo '</div><br clear="all">';
}
// Add to cart fields validation (in case of need)
add_filter( 'woocommerce_add_to_cart_validation', 'amp_add_to_cart_validation', 20, 3 );
function amp_add_to_cart_validation( $passed, $product_id, $qty ){
// Loop through each custom field
foreach( get_date_label_keys() as $key => $label ){
if( isset( $_POST[$key] ) && empty( $_POST[$key] ) ){
wc_add_notice( sprintf( __( '%s cannot be added to the cart until you enter a delivery date.', $domain ), get_the_title() ), 'error' );
$passed = false;
}
}
return $passed;
}
// Add to cart items the custom data
add_filter( 'woocommerce_add_cart_item_data', 'amp_add_cart_item_data', 20, 2 );
function amp_add_cart_item_data( $cart_item, $product_id ){
// Loop through each custom field
foreach( get_date_label_keys() as $key => $label ){
if( isset( $_POST[$key] ) )
$cart_item['dates'][$key] = sanitize_text_field( $_POST[$key] );
}
return $cart_item;
}
// Display the dates in cart items on cart and checkout pages
add_filter( 'woocommerce_get_item_data', 'amp_get_item_data', 20, 2 );
function amp_get_item_data( $item_data, $cart_item = null ) {
// Loop through each custom field
foreach( get_date_label_keys() as $key => $label ){
if ( isset( $cart_item['dates'][$key] ) )
$item_data[] = array(
'name' => $label,
'value' => sanitize_text_field( $cart_item['dates'][$key] )
);
}
return $item_data;
}
// Add order item meta data and Display the data in order items (hook replaced)
add_action( 'woocommerce_checkout_create_order_line_item', 'amp_add_order_item_meta', 20, 4 );
function amp_add_order_item_meta( $item, $cart_item_key, $values, $order ) {
foreach( get_date_label_keys() as $key => $label ){
// Loop through each custom field
if ( ! empty( $values['dates'][$key] ) )
$item->update_meta_data( $label, $values['dates'][$key] );
}
}
Code goes in function.php file of your active child theme (or active theme). Tested and works.
On cart page (and checkout too):
Order received and order view pages (in admin order edit pages and email notifications too):
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