Create order from existing WC_Order_Item_Product? - woocommerce

Question

tldr:// how to clone an existing WC_Order_Item_Product to a new order?
I have looked through a lot of existing subscription plugins but didnt really get warm with them. So I decided to create something as a learning project. Its not for a customer, I dont expect it to be commercially successful product, but I guess its good to step up my game.
So I have created a custom table already that saves target dates and would like to create new orders from the existing WC_Order_Item_Product-Objects. By simply adding the original Object it will just move them from the old order, which is something I do not want to happen. I wonder how I could 'clone' the object and remove the protected [order_id] which would be overridden by WC_Order->add_item anyway without altering the original database entries. Maybe thats the wrong approach or a bad idea?
I have also tried to find some up2date hint on how to create a full custom WC_Order_Item_Product but was not really successful on that.
What I got atm:
function update ($reminder_id = null) {
global $woocommerce;
global $wpdb;
global $aboprodukt_table_name;
// TODO if reminder id
if ( ! $reminder_id) {
$neworders = [];
// get all reminders from db and loop through them
$aboprodukt_reminders = $wpdb->get_results( 'SELECT * FROM ' . $aboprodukt_table_name . ' ORDER BY ' . $aboprodukt_table_name . '.targetdate ASC');
foreach ($aboprodukt_reminders as $item ) {
// get original order item object to abstract
$order_item = new \WC_Order_Item_Product($item->orderitem);
// get order object
$order = $order_item->get_order();
// get customer id
$customer = $order->get_customer_id();
// TODO abstract order items
// assign user, adresses if not existing yet, copy from last order
if ( ! $neworders[$customer] ) {
// check all reminders
$customer_array = $order->get_data();
$args = array(
'customer_id' => $customer,
'created_via' => 'Aboprodukt',
'add_order_note' => __('Aboprodukt Custom Order', 'aboprodukt'),
);
$neworders[$customer] = \wc_create_order($args);
// TODO Shipping
}
// add order items
$neworders[$customer]->add_item($order_item);
$neworders[$customer]->calculate_totals();
$neworders[$customer]->save();
}
return print_r($neworders,true);}

Answer 1

Not sure if it helps so. but this is the way I've managed to do so.
For understanding: I got an extra "reminder"-table in the database that stores: date, order-item-id. It is removed after its used to create a new order.
function update ($reminder_id = null) {
global $woocommerce;
global $wpdb;
global $aboprodukt_table_name;
// TODO if order id
if ( ! $reminder_id) {
$neworders = [];
// get all reminders from db and loop through them
$aboprodukt_reminders = $wpdb->get_results( 'SELECT * FROM ' . $aboprodukt_table_name . ' ORDER BY ' . $aboprodukt_table_name . '.targetdate ASC');
foreach ($aboprodukt_reminders as $item ) {
// get original order item object to abstract
$order_item = new \WC_Order_Item_Product($item->orderitem);
$order = $order_item->get_order();
$customer = $order->get_customer_id();
// assign user, adresses if not existing yet, copy from last order
if ( ! $neworders[$customer] ) {
// check all reminders
$args = array(
'customer_id' => $customer,
'created_via' => 'Aboprodukt',
'add_order_note' => __('Aboprodukt Custom Order', 'aboprodukt'),
);
$neworders[$customer] = \wc_create_order($args);
// order
$customer_object = new \WC_Customer( $customer );
$types = array('billing','shipping');
foreach ($types as $type) {
foreach ( $customer_object->{"get_{$type}"}() as $key => $value) {
if ( ! empty($value) ) {
if ( is_callable( array( $neworders[$customer], "set_{$type}_{$key}" ) ) ) {
$neworders[$customer]->{"set_{$type}_{$key}"}( $value );
}
}
}
}
// Set Shipping
$shippingold = $order->get_shipping_methods();
$oldshippingitem = new \WC_Order_Item_Shipping( reset($shippingold) );
$newshippingitem = new \WC_Order_Item_Shipping();
$newshippingitem->set_method_id( $oldshippingitem->get_method_id() );
$newshippingitem->set_instance_id( $oldshippingitem->get_instance_id() );
$newshippingitem->set_method_title( $oldshippingitem->get_method_title() );
$newshippingitem->set_total( $oldshippingitem->get_total() );
$neworders[$customer]->add_item( $newshippingitem );
}
// if variation_id > 0 then is simple product, get product
$item_variation_id = $order_item->get_variation_id();
$item_id = $neworders[$customer]->add_product(
wc_get_product(isset( $item_variation_id ) && $item_variation_id > 0 ? $item_variation_id : $order_item->get_product_id() ),
$order_item->get_quantity()
);
// copy metadata for future use
$neworderitem = new \WC_Order_Item_Product($item_id);
$neworderitem->add_meta_data( '_aboprodukt_order', $order_item->get_meta('_aboprodukt_order'), true );
$neworderitem->add_meta_data( '_aboprodukt_timespan', $order_item->get_meta('_aboprodukt_timespan'), true );
$neworderitem->add_meta_data( '_aboprodukt_type', $order_item->get_meta('_aboprodukt_type'), true );
$neworderitem->save();
$neworders[$customer]->calculate_totals();
$neworders[$customer]->save();
$wpdb->query(
$wpdb->prepare(
"DELETE FROM $aboprodukt_table_name
WHERE id = %d",
$item->id
)
);
}
}
// send emails
foreach ( $neworders as $customers => $neworder ) {
$mailer = \WC()->mailer();
\WC()->mailer()->emails['WC_Email_Customer_Invoice']->trigger($neworder->get_id());
$neworder->add_order_note( sprintf( __('%s email notification manually sent.', 'woocommerce'), $mail->title), false, true);
}
return $neworders;
}