Automatic order currency change and recalculate [duplicate] - php

Question

In WooCommerce, when creating and saving a manual order via Admin, I am trying to replace the order currency value with a custom meta data value (which meta key is _wcj_order_currency)
Here are 2 screenshots of the related meta data (key/value pairs):
The order currency:
The custom currency (from Booster plugin):
So I would like to replace the order currency EUR to the custom currency USD from _order_currency meta key on save.
References I used:
How can I populate meta fields of a Woocommerce manual order
WooCommerce admin order edit save post
My code attempt:
// Saving (Updating) or doing an action when submitting
add_action( 'save_post', 'update_order_custom_field_value' );
function update_order_custom_field_value( $post_id ){
// Only for shop order
// if ( 'shop_order' != $_POST[ 'post_type' ] )
if ( 'shop_order')
return $post_id;
// Checking that is not an autosave
if ( defined( 'DOING_AUTOSAVE' ) && DOING_AUTOSAVE )
return $post_id;
// Check the user’s permissions (for 'shop_manager' and 'administrator' user roles)
if ( ! current_user_can( 'edit_shop_order', $post_id ) )
return $post_id;
//Up to above is fine for Admin order
// Updating custom field data
if( isset( $_POST['_wcj_order_currency'] ) ) {
$order = wc_get_order( $post_id );
// Replacing and updating the value
update_post_meta( $post_id, '_order_currency', $_POST['_wcj_order_currency'] );
}}
// Testing output in order edit pages (below billing address):
//This displays the existing values well
add_action( 'woocommerce_admin_order_data_after_billing_address', 'display_order_custom_field_value' );
function display_order_custom_field_value( $order ){
echo '<p><strong>'.__('Order Currency').':</strong> <br/>' . get_post_meta( $order->get_id(), '_order_currency', true ) . '</p>';
echo '<p><strong>'.__('Booster Order Currency').':</strong> <br/>' . get_post_meta( $order->get_id(), '_wcj_order_currency', true ) . '</p>';
}
Testing output in order edit pages (below billing address). The code works well.
But I am unable to make it work and update the order currency on order creation.
Any help on this is welcome.

Answer 1

To make your script work on new order creation only, try the following revisited code (commented):
// Save order data
add_action( 'save_post_shop_order', 'update_order_currency_on_creation', 1000 );
function update_order_currency_on_creation( $order_id ){
// Ensure that this is a manual new order
if( $created = get_post_meta( $order_id, '_created_via', true ) ) {
return $order_id;
}
// Checking that is not an autosave (not sure that this is really needed on Woocommerce orders)
if ( defined( 'DOING_AUTOSAVE' ) && DOING_AUTOSAVE ) {
return $order_id;
}
// Check the user’s permissions (for 'shop_manager' and 'administrator' user roles)
if ( ! current_user_can( 'edit_shop_order', $order_id ) ) {
return $order_id;
}
## ---- Updating order currency ---- ##
// Get the WC_Order object
$order = wc_get_order($order_id);
// HERE below the Booster meta key for Order currency
$meta_key = '_wcj_order_currency';
// If Booster currency is already in database (in case of, to be sure)
if ( $value = $order->get_meta($meta_key) ) {
$order->set_currency( esc_attr($value) );
$order->save(); // Save order data
}
// If not, we get the posted Booster currency value (else)
elseif ( isset($_POST[$meta_key]) && ( $value = esc_attr($_POST[$meta_key]) ) ) {
$order->set_currency( esc_attr($_POST[$meta_key]) );
$order->save(); // Save order data
}
}
// Testing output in order edit pages (below billing address): This displays the existing values as well.
add_action( 'woocommerce_admin_order_data_after_billing_address', 'display_specific_order_details' );
function display_specific_order_details( $order ){
echo '<div><p><strong>'.__('Order Currency').':</strong> ' . $order->get_currency() . '</p>
<p><strong>'.__('Booster Order Currency').':</strong> ' . $order->get_meta( '_wcj_order_currency' ) . '</p></div>';
}
Code goes in function.php file of your active child theme (or active theme). Tested and works.