protected function fillFieldsToGridRequest($request)
{
foreach (parent::getFields() as $field) {
if ($field->get(self::FIELD_VALUE) != '') {
$operator = 'L';
if (in_array($field->get(self::FIELD_NAME), $this->getEqualFields())) {
$operator = '=';
}
$request->addFilter($field->get(self::FIELD_NAME), $operator, $field->get(self::FIELD_VALUE));
}
}
}