查詢與Doctrine2無法正常工作

Question

我正在開發一個小網站來學習Symfony2，並且我對Doctrine查詢有問題，但我不明白爲什麼。

這是我EventRepository

class EventRepository extends \Doctrine\ORM\EntityRepository 
{ 
    public function findByBounds($lat, $lng, $zoom) 
    { 
     $em = $this->getEntityManager(); 
     $bounds = 0.025; 

     $latBound1 = $lat + $bounds * 2 ** $zoom/2; 
     $latBound2 = $lat - $bounds * 2 ** $zoom/2; 
     $lngBound1 = $lng + $bounds * 2 ** $zoom/2; 
     $lngBound2 = $lng - $bounds * 2 ** $zoom/2; 

     $latBoundMin = $latBound1 < $latBound2 ? $latBound1 : $latBound2; 
     $latBoundMax = $latBound1 > $latBound2 ? $latBound1 : $latBound2; 
     $lngBoundMin = $lngBound1 < $lngBound2 ? $lngBound1 : $lngBound2; 
     $lngBoundMax = $lngBound1 > $lngBound2 ? $lngBound1 : $lngBound2; 

     $query = $em->createQuery(
      "SELECT e 
      FROM AppBundle:Event e 
      WHERE (e.lat BETWEEN :latBoundMin AND :latBoundMax) AND (e.lng BETWEEN :lngBoundMin AND :lngBoundMax) 
      ORDER BY e.date ASC"); 

     $query->setParameters(array(
      "latBoundMin" => $latBoundMin, 
      "latBoundMax" => $latBoundMax, 
      "lngBoundMin" => $lngBoundMin, 
      "lngBoundMax" => $lngBoundMax, 
     )); 

     return $query->getResult(); 
    } 
} 

這是我在我的EventController

public function indexAction(Request $request) 
{ 
    $em = $this->getDoctrine()->getManager(); 
    $lat = $request->request->get("locationLat"); 
    $lng = $request->request->get("locationLng"); 
    $zoom = 0; 

    // search events by lat, lng and bounds 
    // $events = $em->getRepository('AppBundle:Event')->findAll(); 
    // do { 
    // 
     $latBound1 = $lat + 0.025 * 2 ** $zoom/2; 
     $latBound2 = $lat - 0.025 * 2 ** $zoom/2; 
     $lngBound1 = $lng + 0.025 * 2 ** $zoom/2; 
     $lngBound2 = $lng - 0.025 * 2 ** $zoom/2; 

     $latBoundMin = $latBound1 < $latBound2 ? $latBound1 : $latBound2; 
     $latBoundMax = $latBound1 > $latBound2 ? $latBound1 : $latBound2; 
     $lngBoundMin = $lngBound1 < $lngBound2 ? $lngBound1 : $lngBound2; 
     $lngBoundMax = $lngBound1 > $lngBound2 ? $lngBound1 : $lngBound2; 
    // 
    //  $events = $em->getRepository("AppBundle:Event")->findByBounds($lat, $lng, $zoom); 
    //  $numEvents = 0; 
    //  foreach ($events as $event) { 
    //   $numEvents++; 
    //  } 
    // } while ($numEvents < 5 && $zoom <= 3); 

    $events = $em->getRepository("AppBundle:Event")->findByBounds($lat, $lng, $zoom); 
    $numEvents = 0; 
    foreach ($events as $event) { 
     $numEvents++; 
    } 

    return $this->render('event/index.html.twig', array(
     'events' => $events, 
     "lat" => $lat, 
     "lng" => $lng, 
     "zoom" => $zoom, 
     "numEvents" => $numEvents, 
     "lat1" => $latBoundMin, 
     "lat2" => $latBoundMax, 
     "lng1" => $lngBoundMin, 
     "lng2" => $lngBoundMax, 
    )); 
} 

在數據庫中的所有事件的indexAction ...

mysql> select * from event; 
+----+-------------+------------------+-------------------------+-------------------+----------------------+---------------------+---------+---------------------+---------------------+ 
| id | promoter_id | title   | location    | lat    | lng     | date    | program | createdAt   | updatedAt   | 
+----+-------------+------------------+-------------------------+-------------------+----------------------+---------------------+---------+---------------------+---------------------+ 
| 1 |   2 | St Blai VdC 2017 | Vilar de Canes, Espanya | 40.35827889999999 | -0.06620989999998983 | 2017-02-04 00:00:00 | :)  | 2016-11-16 13:52:58 | 2016-11-16 13:52:58 | 
| 2 |   1 | Festes Agost VdC | Vilar de Canes, Espanya | 40.35827889999999 | -0.06620989999998983 | 2017-08-04 00:00:00 | xD  | 2016-11-16 13:53:39 | 2016-11-16 13:53:39 | 
| 3 |   6 | Festes Agost VdC | Vilar de Canes, Espanya | 40.35827889999999 | -0.06620989999998983 | 2017-08-05 00:00:00 | xxxD | 2016-11-16 13:54:24 | 2016-11-16 13:54:24 | 
| 4 |   1 | qwer    | Castelló, Espanya  | 40.14517720000001 | -0.14949879999994664 | 2016-11-17 15:50:00 | asdfas | 2016-11-17 15:51:27 | 2016-11-17 15:51:27 | 
| 5 |   1 | lkn    | Castelló, Espanya  | 40.14517720000001 | -0.14949879999994664 | 2016-11-17 22:43:00 | asdf | 2016-11-17 22:43:31 | 2016-11-17 22:43:31 | 
| 6 |   1 | lkñk    | Albocàsser, Espanya  | 40.35670100000001 | 0.025070499999969797 | 2016-11-17 22:43:00 | lkjo | 2016-11-17 22:43:58 | 2016-11-17 22:43:58 | 
| 7 |   2 | ertop   | Benassal, Espanya  | 40.3797068  | -0.14195100000006278 | 2016-12-17 22:44:00 | lñkjok | 2016-11-17 22:44:27 | 2016-11-17 22:44:27 | 
+----+-------------+------------------+-------------------------+-------------------+----------------------+---------------------+---------+---------------------+---------------------+ 
7 rows in set (0,01 sec) 

和SQL的作品查詢...

mysql> select * from event where lat between 40.3082 and 40.4082 and lng between -0.1162 and -0.0162 order by date asc; 
+----+-------------+------------------+-------------------------+-------------------+----------------------+---------------------+---------+---------------------+---------------------+ 
| id | promoter_id | title   | location    | lat    | lng     | date    | program | createdAt   | updatedAt   | 
+----+-------------+------------------+-------------------------+-------------------+----------------------+---------------------+---------+---------------------+---------------------+ 
| 1 |   2 | St Blai VdC 2017 | Vilar de Canes, Espanya | 40.35827889999999 | -0.06620989999998983 | 2017-02-04 00:00:00 | :)  | 2016-11-16 13:52:58 | 2016-11-16 13:52:58 | 
| 2 |   1 | Festes Agost VdC | Vilar de Canes, Espanya | 40.35827889999999 | -0.06620989999998983 | 2017-08-04 00:00:00 | xD  | 2016-11-16 13:53:39 | 2016-11-16 13:53:39 | 
| 3 |   6 | Festes Agost VdC | Vilar de Canes, Espanya | 40.35827889999999 | -0.06620989999998983 | 2017-08-05 00:00:00 | xxxD | 2016-11-16 13:54:24 | 2016-11-16 13:54:24 | 
+----+-------------+------------------+-------------------------+-------------------+----------------------+---------------------+---------+---------------------+---------------------+ 
3 rows in set (0,00 sec) 

我不明白爲什麼我在DQL查詢不正常工作:(

Answer 1

變化

$query->setParameters(array(
      "latBoundMin" => $latBoundMin, 
      "latBoundMax" => $latBoundMax, 
      "lngBoundMin" => $lngBoundMin, 
      "lngBoundMax" => $lngBoundMax, 
     )); 

到

$query->setParameter('latBoundMin', $latBoundMin) 
     ->setParameter('latBoundMax', $latBoundMax) 
     ->setParameter('lngBoundMin', $lngBoundMin) 
     ->setParameter('lngBoundMax', $lngBoundMax);