aMember (site.php): Add column with PayPal Email to grid with affiliate payout details

site.php

<?php

Am_Di::getInstance()->hook->add('gridAffPayoutDetailInitGrid', function(Am_Event_Grid $e) {
    $e->getGrid()->getDataSource()
        ->leftJoin('?_data', 'd', "d.`table`='user' AND d.`key` = 'aff_paypal_email' AND u.user_id = d.`id`")
        ->addField('d.value', 'aff_paypal_email');
    $e->getGrid()->addFieldBefore('name_f', 'aff_paypal_email', 'PayPal Email');
});