protected function createComponentGrid()
{
$dg = new \Gridder\Gridder();
$dg->setClass('users');
$repository = $this->context->documentManager->getRepository('User');
$source = new \Gridder\Sources\MongoRepositorySource($repository);
//$source->prime('areaOfExpertise');
$storageSection = $this->getSession()->getSection('gridder_users' . $this->user->id);
$persister = new \Gridder\Persisters\SessionPersister($storageSection);
$dg->setSource($source);
$dg->setPersister($persister);
$dg->setPresenter($this);
$dg->setInitialItemsPerPage(10);
$dg->setPrimaryKey('id');
//$dg->addColumn('id')->setCaption('id');
$dg->addColumn('nick')->setSortable(TRUE)->setFilter('text');
$dg->addColumn('email')->setSortable(TRUE)->setFilter('text');
$dg->addColumn('projectCount')->setCaption('project count')->setSortable(TRUE);
$dg->addColumn('account')->setSortable(TRUE)->setFilter('text');
$dg->addColumn('active')->setCaption('active')->setSortable(TRUE)->valueModifier[] = function ($boolean) {
return $boolean === TRUE ? 'yes' : 'no';
};
$ac = $dg->addActionColumn('akcie');
$ac->addAction('detail', 'detail:')->setTitle('detail');
return $dg;
}