Sous-requêtes dans le champ Doctrine pour avoir

Question

Je traite plusieurs lignes de bus. Je veux aller chercher les deux points les plus proches de mes points de départ et de destination. Alors ce que je fais est:

$q = Doctrine_query::create() 
     ->select('r.*') 
//d1 and d2 are the distance between the p1 and p2 points and my dest and depa points. 
     ->addSelect("(6371 * ACOS(SIN(RADIANS($depa_lat)) * SIN(RADIANS(p1.lat)) + COS(RADIANS($depa_lat)) * COS(RADIANS(p1.lat)) * COS(RADIANS(p1.lng) - RADIANS($depa_lng)))) d1") 
     ->addSelect("(6371 * ACOS(SIN(RADIANS($dest_lat)) * SIN(RADIANS(p2.lat)) + COS(RADIANS($dest_lat)) * COS(RADIANS(p2.lat)) * COS(RADIANS(p2.lng) - RADIANS($dest_lng)))) d2") 
     ->from('Route r') 
     ->innerJoin('r.Points p1') 
     ->innerJoin('r.Points p2') 
//this is just to select only the points close enough to my depa and dest point 
     ->andWhere('p1.lat >= ?',$depa_lat - $eps_lat) 
     ->andWhere('p1.lat <= ?',$depa_lat + $eps_lat) 
     ->andWhere('p1.lng >= ?',$depa_lng - $eps_lng) 
     ->andWhere('p1.lng <= ?',$depa_lng + $eps_lng) 
     ->andWhere('p2.lat >= ?',$dest_lat - $eps_lat) 
     ->andWhere('p2.lat <= ?',$dest_lat + $eps_lat) 
     ->andWhere('p2.lng >= ?',$dest_lng - $eps_lng) 
     ->andWhere('p2.lng <= ?',$dest_lng + $eps_lng) 

//those subqueries are to fetch the two closest points, and they seem to be the cause of the crash 
     ->having('d1 = 
     (
      SELECT MIN((6371 * ACOS(SIN(RADIANS('.$depa_lat.')) * SIN(RADIANS(p3.lat)) + COS(RADIANS('.$depa_lat.')) * COS(RADIANS(p3.lat)) * COS(RADIANS(p3.lng) - RADIANS('.$depa_lng.'))))) 
      FROM Point p3 
      WHERE p3.lat >= '.$depa_lat - $eps_lat.' AND p3.lat <= '.$depa_lat + $eps_lat.' AND p3.lng >= '.$depa_lng - $eps_lng.' AND p3.lng <= '.$depa_lng + $eps_lng.' AND p3.route_id = p1.route_id 
     )') 
    ->having('d2 = 
     (
      SELECT MIN((6371 * ACOS(SIN(RADIANS('.$dest_lat.')) * SIN(RADIANS(p4.lat)) + COS(RADIANS('.$dest_lat.')) * COS(RADIANS(p4.lat)) * COS(RADIANS(p4.lng) - RADIANS('.$dest_lng.'))))) 
      FROM Point p4 
      WHERE p4.lat >= '.$dest_lat - $eps_lat.' AND p4.lat <= '.$dest_lat + $eps_lat.' AND p4.lng >= '.$dest_lng - $eps_lng.' AND p4.lng <= '.$dest_lng + $eps_lng.' AND p4.route_id = p2.route_id 
     )') 
     ->orderBy('d1+d2') 
     ->execute(); 

L'erreur est:

Doctrine_Exception 
Couldn't find class p4 

Y at-il une meilleure façon de le faire? Je pensais que MIN devrait aller avec GROUP BY, et j'ai essayé GROUP BY p3.id et GROUP BY p4.id, mais cela n'a pas changé. Voici la trace de la pile de Symfony: Il est étrange que la fonction parseAggregateFunction() efface la requête, n'est-ce pas?

at Doctrine_Table->initDefinition() 
in SF_SYMFONY_LIB_DIR/plugins/sfDoctrinePlugin/lib/vendor/doctrine/Doctrine/Table.php line 256 ... 
at Doctrine_Table->__construct('-58', object('Doctrine_Connection_Mysql'), 1) 
in SF_SYMFONY_LIB_DIR/plugins/sfDoctrinePlugin/lib/vendor/doctrine/Doctrine/Connection.php line 1126 ... 
at Doctrine_Connection->getTable('-58') 
in SF_SYMFONY_LIB_DIR/plugins/sfDoctrinePlugin/lib/vendor/doctrine/Doctrine/Query.php line 1942 ... 
at Doctrine_Query->loadRoot('-58', '-58') 
in SF_SYMFONY_LIB_DIR/plugins/sfDoctrinePlugin/lib/vendor/doctrine/Doctrine/Query.php line 1740 ... 
at Doctrine_Query->load('-58',) 
in SF_SYMFONY_LIB_DIR/plugins/sfDoctrinePlugin/lib/vendor/doctrine/Doctrine/Query/Having.php line 89 ... 
at Doctrine_Query_Having->_parseAliases('-58.3819582))))) FRO') 
in SF_SYMFONY_LIB_DIR/plugins/sfDoctrinePlugin/lib/vendor/doctrine/Doctrine/Query/Having.php line 70 ... 
at Doctrine_Query_Having->parseAggregateFunction('-58.3819582))))) FRO') 
in SF_SYMFONY_LIB_DIR/plugins/sfDoctrinePlugin/lib/vendor/doctrine/Doctrine/Query/Having.php line 63 ... 
at Doctrine_Query_Having->parseAggregateFunction('p4.lng) - RADIANS(-58.3819582))))) FROM') 
in SF_SYMFONY_LIB_DIR/plugins/sfDoctrinePlugin/lib/vendor/doctrine/Doctrine/Query/Having.php line 63 ... 
at Doctrine_Query_Having->parseAggregateFunction('RADIANS(p4.lng) - RADIANS(-58.3819582))))) FROM P') 
in SF_SYMFONY_LIB_DIR/plugins/sfDoctrinePlugin/lib/vendor/doctrine/Doctrine/Query/Having.php line 63 ... 
at Doctrine_Query_Having->parseAggregateFunction('p4.lat)) * COS(RADIANS(p4.lng) - RADIANS(-58.3819582))))) FROM Po') 
in SF_SYMFONY_LIB_DIR/plugins/sfDoctrinePlugin/lib/vendor/doctrine/Doctrine/Query/Having.php line 63 ... 
at Doctrine_Query_Having->parseAggregateFunction('RADIANS(p4.lat)) * COS(RADIANS(p4.lng) - RADIANS(-58.3819582))))) FROM Poi') 
in SF_SYMFONY_LIB_DIR/plugins/sfDoctrinePlugin/lib/vendor/doctrine/Doctrine/Query/Having.php line 63 ... 
at Doctrine_Query_Having->parseAggregateFunction('-58.3819582)) * COS(RADIANS(p4.lat)) * COS(RADIANS(p4.lng) - RADIANS(-58.3819582))))) FROM Poin') 
in SF_SYMFONY_LIB_DIR/plugins/sfDoctrinePlugin/lib/vendor/doctrine/Doctrine/Query/Having.php line 63 ... 
at Doctrine_Query_Having->parseAggregateFunction('RADIANS(-58.3819582)) * COS(RADIANS(p4.lat)) * COS(RADIANS(p4.lng) - RADIANS(-58.3819582))))) FROM Point') 
in SF_SYMFONY_LIB_DIR/plugins/sfDoctrinePlugin/lib/vendor/doctrine/Doctrine/Query/Having.php line 63 ... 
at Doctrine_Query_Having->parseAggregateFunction('p4.lat)) + COS(RADIANS(-58.3819582)) * COS(RADIANS(p4.lat)) * COS(RADIANS(p4.lng) - RADIANS(-58.3819582))))) FROM Point p') 
in SF_SYMFONY_LIB_DIR/plugins/sfDoctrinePlugin/lib/vendor/doctrine/Doctrine/Query/Having.php line 63 ... 
at Doctrine_Query_Having->parseAggregateFunction('RADIANS(p4.lat)) + COS(RADIANS(-58.3819582)) * COS(RADIANS(p4.lat)) * COS(RADIANS(p4.lng) - RADIANS(-58.3819582))))) FROM Point p4') 
in SF_SYMFONY_LIB_DIR/plugins/sfDoctrinePlugin/lib/vendor/doctrine/Doctrine/Query/Having.php line 63 ... 
at Doctrine_Query_Having->parseAggregateFunction('-58.3819582)) * SIN(RADIANS(p4.lat)) + COS(RADIANS(-58.3819582)) * COS(RADIANS(p4.lat)) * COS(RADIANS(p4.lng) - RADIANS(-58.3819582))))) FROM Point p4 W') 
in SF_SYMFONY_LIB_DIR/plugins/sfDoctrinePlugin/lib/vendor/doctrine/Doctrine/Query/Having.php line 63 ... 
at Doctrine_Query_Having->parseAggregateFunction('RADIANS(-58.3819582)) * SIN(RADIANS(p4.lat)) + COS(RADIANS(-58.3819582)) * COS(RADIANS(p4.lat)) * COS(RADIANS(p4.lng) - RADIANS(-58.3819582))))) FROM Point p4 WH') 
in SF_SYMFONY_LIB_DIR/plugins/sfDoctrinePlugin/lib/vendor/doctrine/Doctrine/Query/Having.php line 63 ... 
at Doctrine_Query_Having->parseAggregateFunction('SIN(RADIANS(-58.3819582)) * SIN(RADIANS(p4.lat)) + COS(RADIANS(-58.3819582)) * COS(RADIANS(p4.lat)) * COS(RADIANS(p4.lng) - RADIANS(-58.3819582))))) FROM Point p4 WHE') 
in SF_SYMFONY_LIB_DIR/plugins/sfDoctrinePlugin/lib/vendor/doctrine/Doctrine/Query/Having.php line 63 ... 
at Doctrine_Query_Having->parseAggregateFunction('6371 * ACOS(SIN(RADIANS(-58.3819582)) * SIN(RADIANS(p4.lat)) + COS(RADIANS(-58.3819582)) * COS(RADIANS(p4.lat)) * COS(RADIANS(p4.lng) - RADIANS(-58.3819582))))) FROM Point p4 WHER') 
in SF_SYMFONY_LIB_DIR/plugins/sfDoctrinePlugin/lib/vendor/doctrine/Doctrine/Query/Having.php line 63 ... 
at Doctrine_Query_Having->parseAggregateFunction('(6371 * ACOS(SIN(RADIANS(-58.3819582)) * SIN(RADIANS(p4.lat)) + COS(RADIANS(-58.3819582)) * COS(RADIANS(p4.lat)) * COS(RADIANS(p4.lng) - RADIANS(-58.3819582))))) FROM Point p4 WHERE') 
in SF_SYMFONY_LIB_DIR/plugins/sfDoctrinePlugin/lib/vendor/doctrine/Doctrine/Query/Having.php line 63 ... 
at Doctrine_Query_Having->parseAggregateFunction('SELECT MIN((6371 * ACOS(SIN(RADIANS(-58.3819582)) * SIN(RADIANS(p4.lat)) + COS(RADIANS(-58.3819582)) * COS(RADIANS(p4.lat)) * COS(RADIANS(p4.lng) - RADIANS(-58.3819582))))) FROM Point p4 WHERE 0') 
in SF_SYMFONY_LIB_DIR/plugins/sfDoctrinePlugin/lib/vendor/doctrine/Doctrine/Query/Having.php line 118 ... 
at Doctrine_Query_Having->load('d2 = SELECT MIN((6371 * ACOS(SIN(RADIANS(-58.3819582)) * SIN(RADIANS(p4.lat)) + COS(RADIANS(-58.3819582)) * COS(RADIANS(p4.lat)) * COS(RADIANS(p4.lng) - RADIANS(-58.3819582))))) FROM Point p4 WHERE 0') 
in SF_SYMFONY_LIB_DIR/plugins/sfDoctrinePlugin/lib/vendor/doctrine/Doctrine/Query/Condition.php line 92 ... 
at Doctrine_Query_Condition->parse('d2 = SELECT MIN((6371 * ACOS(SIN(RADIANS(-58.3819582)) * SIN(RADIANS(p4.lat)) + COS(RADIANS(-58.3819582)) * COS(RADIANS(p4.lat)) * COS(RADIANS(p4.lng) - RADIANS(-58.3819582))))) FROM Point p4 WHERE 0') 
in SF_SYMFONY_LIB_DIR/plugins/sfDoctrinePlugin/lib/vendor/doctrine/Doctrine/Query/Condition.php line 80 ... 
at Doctrine_Query_Condition->parse('d2 = SELECT MIN((6371 * ACOS(SIN(RADIANS(-58.3819582)) * SIN(RADIANS(p4.lat)) + COS(RADIANS(-58.3819582)) * COS(RADIANS(p4.lat)) * COS(RADIANS(p4.lng) - RADIANS(-58.3819582))))) FROM Point p4 WHERE 0 AND p4.route_id = p2.route_id') 
in SF_SYMFONY_LIB_DIR/plugins/sfDoctrinePlugin/lib/vendor/doctrine/Doctrine/Query/Abstract.php line 2077 ... 
at Doctrine_Query_Abstract->_processDqlQueryPart('having', array('d2 = SELECT MIN((6371 * ACOS(SIN(RADIANS(-58.3819582)) * SIN(RADIANS(p4.lat)) + COS(RADIANS(-58.3819582)) * COS(RADIANS(p4.lat)) * COS(RADIANS(p4.lng) - RADIANS(-58.3819582))))) FROM Point p4 WHERE 0 AND p4.route_id = p2.route_id')) 
in SF_SYMFONY_LIB_DIR/plugins/sfDoctrinePlugin/lib/vendor/doctrine/Doctrine/Query.php line 1167 ... 
at Doctrine_Query->buildSqlQuery(1) 
in SF_SYMFONY_LIB_DIR/plugins/sfDoctrinePlugin/lib/vendor/doctrine/Doctrine/Query.php line 1133 ... 
at Doctrine_Query->getSqlQuery(array()) 
in SF_SYMFONY_LIB_DIR/plugins/sfDoctrinePlugin/lib/vendor/doctrine/Doctrine/Query/Abstract.php line 958 ... 
at Doctrine_Query_Abstract->_execute(array()) 
in SF_SYMFONY_LIB_DIR/plugins/sfDoctrinePlugin/lib/vendor/doctrine/Doctrine/Query/Abstract.php line 1026 ... 
at Doctrine_Query_Abstract->execute() 
in SF_ROOT_DIR/lib/model/doctrine/LineTable.class.php line 58 ... 
at LineTable->findLinesFromLatLngToLatLng('-34.5835397', '-58.4246329', '-58.3819582', '-58.3819582', 0.4) 
in SF_ROOT_DIR/apps/frontend/modules/map/actions/actions.class.php line 57 ... 
at mapActions->executeSearch(object('sfWebRequest')) 
in SF_SYMFONY_LIB_DIR/action/sfActions.class.php line 60 ... 
at sfActions->execute(object('sfWebRequest')) 
in SF_SYMFONY_LIB_DIR/filter/sfExecutionFilter.class.php line 92 ... 
at sfExecutionFilter->executeAction(object('mapActions')) 
in SF_SYMFONY_LIB_DIR/filter/sfExecutionFilter.class.php line 78 ... 
at sfExecutionFilter->handleAction(object('sfFilterChain'), object('mapActions')) 
in SF_SYMFONY_LIB_DIR/filter/sfExecutionFilter.class.php line 42 ... 
at sfExecutionFilter->execute(object('sfFilterChain')) 
in SF_SYMFONY_LIB_DIR/filter/sfFilterChain.class.php line 53 ... 
at sfFilterChain->execute() 
in SF_SYMFONY_LIB_DIR/filter/sfRenderingFilter.class.php line 33 ... 
at sfRenderingFilter->execute(object('sfFilterChain')) 
in SF_SYMFONY_LIB_DIR/filter/sfFilterChain.class.php line 53 ... 
at sfFilterChain->execute() 
in SF_SYMFONY_LIB_DIR/controller/sfController.class.php line 238 ... 
at sfController->forward('map', 'search') 
in SF_SYMFONY_LIB_DIR/controller/sfFrontWebController.class.php line 48 ... 
at sfFrontWebController->dispatch() 
in SF_SYMFONY_LIB_DIR/util/sfContext.class.php line 170 ... 
at sfContext->dispatch() 
in SF_ROOT_DIR/web/frontend_dev.php line 13 ... 

Answer 1

Vous pouvez essayer quelque chose comme ceci:

$q = Doctrine_Query::create() 
     ->select('r.*') 
     ->addSelect("(6371 * ACOS(SIN(RADIANS($depa_lat)) * SIN(RADIANS(p1.lat)) + COS(RADIANS($depa_lat)) * COS(RADIANS(p1.lat)) * COS(RADIANS(p1.lng) - RADIANS($depa_lng)))) d1") 
     ->addSelect("(6371 * ACOS(SIN(RADIANS($dest_lat)) * SIN(RADIANS(p2.lat)) + COS(RADIANS($dest_lat)) * COS(RADIANS(p2.lat)) * COS(RADIANS(p2.lng) - RADIANS($dest_lng)))) d2") 
     ->from('Route r') 
     ->innerJoin('r.Points p1') 
     ->innerJoin('r.Points p2') 
     ->andWhere('p1.lat >= ?',$depa_lat - $eps_lat) 
     ->andWhere('p1.lat <= ?',$depa_lat + $eps_lat) 
     ->andWhere('p1.lng >= ?',$depa_lng - $eps_lng) 
     ->andWhere('p1.lng <= ?',$depa_lng + $eps_lng) 
     ->andWhere('p2.lat >= ?',$dest_lat - $eps_lat) 
     ->andWhere('p2.lat <= ?',$dest_lat + $eps_lat) 
     ->andWhere('p2.lng >= ?',$dest_lng - $eps_lng) 
     ->andWhere('p2.lng <= ?',$dest_lng + $eps_lng); 

$d1 = $q->createSubquery() 
    ->select('MIN((6371 * ACOS(SIN(RADIANS('.$depa_lat.')) * SIN(RADIANS(p3.lat)) + COS(RADIANS('.$depa_lat.')) * COS(RADIANS(p3.lat)) * COS(RADIANS(p3.lng) - RADIANS('.$depa_lng.')))))') 
    ->from('Point p3') 
    ->where('WHERE p3.lat >= '.$depa_lat - $eps_lat.' AND p3.lat <= '.$depa_lat + $eps_lat.' AND p3.lng >= '.$depa_lng - $eps_lng.' AND p3.lng <= '.$depa_lng + $eps_lng.' AND p3.route_id = p1.route_id'); 

$d2 = $q->createSubquery() 
    ->select('MIN((6371 * ACOS(SIN(RADIANS('.$dest_lat.')) * SIN(RADIANS(p4.lat)) + COS(RADIANS('.$dest_lat.')) * COS(RADIANS(p4.lat)) * COS(RADIANS(p4.lng) - RADIANS('.$dest_lng.')))))') 
    ->from('Point p4') 
    ->where('p4.lat >= '.$dest_lat - $eps_lat.' AND p4.lat <= '.$dest_lat + $eps_lat.' AND p4.lng >= '.$dest_lng - $eps_lng.' AND p4.lng <= '.$dest_lng + $eps_lng.' AND p4.route_id = p2.route_id'); 

$q->having('d1 = (' . $d1->getDql() . ')') 
    ->having('d2 = (' . $d2->getDql() . ')') 
    ->orderBy('d1+d2') 
    ->execute();