How to update order item meta data from everywhere? - php

Question

I am developing a cycle renting site in which user select the date range (in days) from start date to end. And I am storing that data using wc_add_order_item_meta() function as a meta data of the order, right.
Then, I wanted to give user a functionality like he could change or extend the days by going through the orders page. This is also done, I have created a modal and added a ajax request on change of dates on modal.
Now, I sent data to functions.php using AJAX and I used wc_update_order_item_meta() to update the meta data.
Here's my function looks like :
add_action( 'wp_ajax_update_date_picker', 'update_date_picker' );
function update_date_picker() {
$p_da = $_POST['p_date'];
$r_da = $_POST['r_date'];
$t_dy = $_POST['t_days'];
$order_id = $_POST['order_id'];
$order = wc_get_order($order_id);
foreach ($order->get_items() as $item_id => $item_obj) {
$pd = wc_update_order_item_meta($item_id, 'pickup_hidden_datetime', $p_da);
$rd = wc_update_order_item_meta($item_id, 'return_hidden_datetime', $r_da);
$td = wc_update_order_item_meta($item_id, 'return_hidden_days', $t_dy);
if($pd&&$rd&&$td){
echo "Nice work, Bilal";
}
die();
}
}
This is updating too but not at all the places. I mean, it's giving me right response, when I refresh, it's also giving the updated data but when I go through the view item page it's showing there the old data only instead of updated one. Even when I check the orders in the admin, it's showing the old meta data there too.
Any idea would be appreciated, Thanks in Advance.

Answer 1

I think it's because of the cache that WooCommerce has... try something like this.
add_action( 'wp_ajax_update_date_picker', 'update_date_picker' );
function update_date_picker() {
$p_da = $_POST['p_date'];
$r_da = $_POST['r_date'];
$t_dy = $_POST['t_days'];
$order_id = $_POST['order_id'];
$order = wc_get_order($order_id);
foreach ($order->get_items() as $item_id => $item_obj) {
$pd = wc_update_order_item_meta($item_id, 'pickup_hidden_datetime', $p_da);
$rd = wc_update_order_item_meta($item_id, 'return_hidden_datetime', $r_da);
$td = wc_update_order_item_meta($item_id, 'return_hidden_days', $t_dy);
if($pd&&$rd&&$td){
echo "Nice work, Bilal";
}
}
clean_post_cache( $order->get_id() );
wc_delete_shop_order_transients( $order );
wp_cache_delete( 'order-items-' . $order->get_id(), 'orders' );
die();
}