SS3, Silverstripe, GridField config Field #Casting #Formating

gistfile1.php

        $gridField->getConfig()->getComponentByType('GridFieldDataColumns')->setDisplayFields(array(
            'Created' => 'Erstellt',
            'Code' => 'Code',
            'Value' => 'Wert',
            'Origin' => 'Gutscheinart',
            'Invoice.Buyer.FirstName' => 'Vorname',
            'Invoice.Buyer.Surname' => 'Nachname',
            'inUse' => 'Benutzt'

        ));

        $gridField->getConfig()->getComponentByType('GridFieldDataColumns')->setFieldFormatting(array(
            'Created'   => function($val, $obj) { return $obj->dbObject('Created')->Nice(); }
        ));
        ....
        
        or ...
        
        $gridField->getConfig()->getComponentByType('GridFieldDataColumns')->setFieldFormatting(array(
            'Created'   => function($val, $obj) { return $obj->dbObject('Created')->Format('d.m.Y - h:m'); }
        ));