public function buildMemberships()
{
$items = \Own\Bus\Membership\Data::loadAll();
$memberships = \Own\Bus\PlayerMembership\Data::loadAllByPlayerId($this->getModel()->getId());
$selectedValues = [];
foreach ($memberships as $membership) {
$selectedValues[] = $membership->getMembershipId();
}
return Util\Form::buildCheckboxList('membership' . $this->unique, $items, 'id', 'title', $selectedValues);
}
