public function initialize()
{
$file = new File('media');
$this->add($file);
// CSRF
$csrf = new Hidden('csrf');
$csrf->addValidator(new Identical(['value' => $this->security->getSessionToken(), 'message' => $this->constants->csrfError()]));
// Display for type of media. Such as images, videos, audios, etc
$totalMedia = MediaType::sum(["column" => "amount"]);
$mediaType = new Select("mediaType", MediaType::find(['columns' => array('id', " CONCAT(name, ' (', amount, ')') as type_amount")]), ['using' => ['id', 'type_amount'], 'name' => 'mediaType', 'class' => 'form-control col-md-3 btn-mini', 'useEmpty' => true, 'emptyText' => "All (" . $totalMedia . ")", 'emptyValue' => "all"]);
$this->add($mediaType);
// Search some thing
$search = new Text('search', ['placeholder' => $this->constants->searchPlaceHolder(), 'class' => 'form-control btn-mini', 'required' => false]);
$this->add($search);
}