php - WooCommerce: How to display item meta data in email confirmation using woocommerce_order_item_meta_end

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Our store sells software and we're adding a software voucher code to each purchased. Once the purchase is completed (via the woocommerce_payment_complete hook) we generate the voucher code and add it to each item purchased via wc_add_order_item_meta method.

Summarized code:

add_filter('woocommerce_payment_complete', 'add_voucher_code');

function add_voucher_code( $order_id ) {

    $order = new WC_Order( $order_id );
    $items = $order->get_items();

    foreach ($items as $item)   {

        for ($i = 1; $i <= $item['qty']; $i++)  {
            $voucher_code = 'API request based on order information to get voucher code';
            wc_add_order_item_meta($item->get_id(), 'Voucher Code', $voucher_code);
        }
    }     
}

For some reason or another the item custom meta shows up on the order confirmation page, but doesn't in the confirmation email. (problem 1 slaps forehead) So we're utilizing the woocommerce_order_item_meta_end hook to add it to the confirmation email. (wc_get_order_item_meta)

Summarized code:

add_action('woocommerce_order_item_meta_end', 'email_confirmation_display_order_items', 10, 4);

function email_confirmation_display_order_items($item_id, $item, $order, $plain_text) {

    echo '<div>Voucher Code: '. wc_get_order_item_meta( $item_id, 'Voucher Code') .'</div>';
}

Problem 2 is that added snippet of code shows on the both the order confirmation page (so now it shows twice) and in the order confirmation email. (slaps forehead again)

Current Problem 2 Solution
Right now we solved it by adding an if statement which is suggested here. Like so:

// Only on emails notifications
if( ! (is_admin() || is_wc_endpoint_url() )) {
    echo '<div>Voucher Code: '. wc_get_order_item_meta( $item_id, 'Voucher Code') .'</div>';
}

This feels like a band-aid fix and any insight/suggestions would be much appreciated. Thanks!

Our store sells software and we're adding a software voucher code to each purchased. Once the purchase is completed (via the woocommerce_payment_complete hook) we generate the voucher code and add it to each item purchased via wc_add_order_item_meta method.

Summarized code:

add_filter('woocommerce_payment_complete', 'add_voucher_code');

function add_voucher_code( $order_id ) {

    $order = new WC_Order( $order_id );
    $items = $order->get_items();

    foreach ($items as $item)   {

        for ($i = 1; $i <= $item['qty']; $i++)  {
            $voucher_code = 'API request based on order information to get voucher code';
            wc_add_order_item_meta($item->get_id(), 'Voucher Code', $voucher_code);
        }
    }     
}

For some reason or another the item custom meta shows up on the order confirmation page, but doesn't in the confirmation email. (problem 1 slaps forehead) So we're utilizing the woocommerce_order_item_meta_end hook to add it to the confirmation email. (wc_get_order_item_meta)

Summarized code:

add_action('woocommerce_order_item_meta_end', 'email_confirmation_display_order_items', 10, 4);

function email_confirmation_display_order_items($item_id, $item, $order, $plain_text) {

    echo '<div>Voucher Code: '. wc_get_order_item_meta( $item_id, 'Voucher Code') .'</div>';
}

Problem 2 is that added snippet of code shows on the both the order confirmation page (so now it shows twice) and in the order confirmation email. (slaps forehead again)

Current Problem 2 Solution
Right now we solved it by adding an if statement which is suggested here. Like so:

// Only on emails notifications
if( ! (is_admin() || is_wc_endpoint_url() )) {
    echo '<div>Voucher Code: '. wc_get_order_item_meta( $item_id, 'Voucher Code') .'</div>';
}

This feels like a band-aid fix and any insight/suggestions would be much appreciated. Thanks!

• php
• custom-field
• woocommerce-offtopic
• hooks

Share Improve this question edited Nov 4, 2019 at 17:57 Ryan asked Oct 30, 2019 at 19:18 RyanRyan 22122 silver badges77 bronze badges

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2 Answers 2

Sorted by: Reset to default 2

Since this isn't getting much action I'll put our band-aid fix as the current solution.

Problem 1 Solution
The added item meta data shows on the order confirmation page and does not show on the confirmation email. We solved this by utilizing the woocommerce_order_item_meta_end hook to add the extra item meta.

Problem 2 Solution
Adding the item meta data via woocommerce_order_item_meta_end to the confirmation email also adds it to the confirmation page (visibly duplicating it). We solved this by adding an if statement suggested by @LoicTheAztec here.

add_action('woocommerce_order_item_meta_end', 'email_confirmation_display_order_items', 10, 4);

function email_confirmation_display_order_items($item_id, $item, $order, $plain_text) {

    // Only on emails notifications
    if( ! (is_admin() || is_wc_endpoint_url() )) {
        echo '<div>Voucher Code: '. wc_get_order_item_meta( $item_id, 'Voucher Code') .'</div>';
    }
}

Resources
email confirmation hook visual guide
wc_get_order_item_meta docs
Filter out unwanted order item meta data from Woocommerce email notifications

You could also just only execute the add_action whenever you're in a different action. You could hook into add_action( 'woocommerce_email_header' ); first and then hook into woocommerce_order_item_meta_end. This way we're only doing this whenever the woocommerce_email_header action is executed.

add_action( 'woocommerce_email_header', function() {
    add_action( 'woocommerce_order_item_meta_end', [ $this, 'functionThatDoesSomething' ], 10, 2 );
} );

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