public function __construct($entityType, $bundle)
{
parent::__construct($entityType);
$this->bundle = $bundle;
// first of all, lets filter by bundle, keep in mind that user is an exception, no type field for user even though there is a bundle defined
if (!empty($this->bundle)) {
$this->addCondition(new Condition('type', '=', $this->bundle));
}
}