Fixes EDD Software Licenses - Past payments after EDD Upgrade to v2.3

patch.php

<?php
global $wpdb;
$license_ids = $wpdb->get_col(
	"SELECT `post_id` FROM {$wpdb->postmeta}
		WHERE `meta_key` LIKE '_edd_sl_user_id'
			AND `meta_value` = '0';"
);

if ( ! empty( $license_ids ) ) {
	$payment_ids = array();
	foreach ( $license_ids as $license_id ) {
		$payment_id = get_post_meta( $license_id, '_edd_sl_payment_id', true );

		if ( in_array( $payment_id, $payment_ids ) )
			continue;

		$payment_ids[] = $payment_id;
	}
	foreach ( $payment_ids as $payment_id ) {
		edd_software_licensing()->update_licenses_on_payment_update( $payment_id );
	}
}