Custom fields Feature added with v 1.0

Kimai supports custom fields for the following object types:

  • User via UserPreference (see user preferences)
  • Timesheet via TimesheetMeta
  • Customer via CustomerMeta
  • Project via ProjectMeta
  • Activity via ActivityMeta

Custom fields

Using the fields for internal reasons (eg. importing and linking to IDs of external apps) is simple. You can add these fields programmatically at any time:

$externalId = (new TimesheetMeta())->setName('externalID')->setValue(1);
$timesheet = new Timesheet();

But what if you want the field to be editable by users?

Well, this is possible through the registration via an EventSubscriber, where you add your custom fields.

Add editable custom fields

The following example adds a custom fields to each entity types “edit” and “create” forms:

  • Timesheet via TimesheetMeta
  • Customer via CustomerMeta
  • Project via ProjectMeta
  • Activity via ActivityMeta

This example might seem a little awkward first, as I wanted to add only one example for all possible entity types and that definitely doesn’t make the code prettier ;-) But I hope you get the point and see in prepareEntity what needs to be done to setup new custom fields, which can be edited by the user.

use App\Entity\ActivityMeta;
use App\Entity\CustomerMeta;
use App\Entity\EntityWithMetaFields;
use App\Entity\MetaTableTypeInterface;
use App\Entity\ProjectMeta;
use App\Entity\TimesheetMeta;
use App\Event\ActivityMetaDefinitionEvent;
use App\Event\CustomerMetaDefinitionEvent;
use App\Event\ProjectMetaDefinitionEvent;
use App\Event\TimesheetMetaDefinitionEvent;
use Symfony\Component\EventDispatcher\EventSubscriberInterface;
use Symfony\Component\Form\Extension\Core\Type\TextType;
use Symfony\Component\Validator\Constraints\Length;

class MetaFieldSubscriber implements EventSubscriberInterface
    public static function getSubscribedEvents(): array
        return [
            TimesheetMetaDefinitionEvent::class => ['loadTimesheetMeta', 200],
            CustomerMetaDefinitionEvent::class => ['loadCustomerMeta', 200],
            ProjectMetaDefinitionEvent::class => ['loadProjectMeta', 200],
            ActivityMetaDefinitionEvent::class => ['loadActivityMeta', 200],

    public function loadTimesheetMeta(TimesheetMetaDefinitionEvent $event)
        $this->prepareEntity($event->getEntity(), new TimesheetMeta());

    public function loadCustomerMeta(CustomerMetaDefinitionEvent $event)
        $this->prepareEntity($event->getEntity(), new CustomerMeta());

    public function loadProjectMeta(ProjectMetaDefinitionEvent $event)
        $this->prepareEntity($event->getEntity(), new ProjectMeta());

    public function loadActivityMeta(ActivityMetaDefinitionEvent $event)
        $this->prepareEntity($event->getEntity(), new ActivityMeta());

    private function prepareEntity(EntityWithMetaFields $entity, MetaTableTypeInterface $definition)
            ->addConstraint(new Length(['max' => 255]))



Each meta field has its own visibility, which determines whether the field will be exposed in the following places:

  • Export
  • Invoice
  • API

The default visibility is false (hidden). If you want to use the meta fields value in your invoices, then you have to set its visibility to true (see EventSubscriber example above).

Be aware: the visibility is stored with the meta field, so changing its value via the EventSubscriber does NOT change the visibility of already saved meta fields, just for new ones.