[DDC-719] Error in SQL subquery for a ManyToMany selfreferencing enitity when using the SIZE() or IS EMPTY dql function

Sat, 7 Aug 2010 06:28:09 +0000

I have an entity (Group) with a self-referencing ManyToMany association (parents, children).
Now im just trying to query all groups without a parent.

My DQL:

SELECT g, c, d FROM Volkszaehler\Model\Group g LEFT JOIN g.children c LEFT JOIN g.channels d  WHERE g.parents IS EMPTY

throws this PDOException:

object(PDOException)#31 (8) {
  ["message":protected]=>
  string(89) "SQLSTATE[42S02]: Base table or view not found: 1146 Table 'volkszaehler.5_' doesn't exist"
  ["string":"Exception":private]=>
  string(0) ""
  ["code":protected]=>
  string(5) "42S02"
  ["file":protected]=>
  string(90) "/home/steffen/workspace/doctrine/lib/vendor/doctrine-dbal/lib/Doctrine/DBAL/Connection.php"
  ["line":protected]=>
  int(568)
  ["trace":"Exception":private]=>
  array(9) {
    [0]=>
    array(6) {
      ["file"]=>
      string(90) "/home/steffen/workspace/doctrine/lib/vendor/doctrine-dbal/lib/Doctrine/DBAL/Connection.php"
      ["line"]=>
      int(568)
      ["function"]=>
      string(5) "query"
      ["class"]=>
      string(3) "PDO"
      ["type"]=>
      string(2) "->"
      ["args"]=>
      array(1) {
        [0]=>
        string(604) "SELECT g0_.name AS name0, g0_.description AS description1, g0_.id AS id2, g0_.uuid AS uuid3, g1_.name AS name4, g1_.description AS description5, g1_.id AS id6, g1_.uuid AS uuid7, c2_.name AS name8, c2_.description AS description9, c2_.indicator AS indicator10, c2_.resolution AS resolution11, c2_.cost AS cost12, c2_.id AS id13, c2_.uuid AS uuid14 FROM groups g0_ LEFT JOIN groups_groups g3_ ON g0_.id = g3_.parent_id LEFT JOIN groups g1_ ON g1_.id = g3_.child_id LEFT JOIN groups_channel g4_ ON g0_.id = g4_.group_id LEFT JOIN channels c2_ ON c2_.id = g4_.channel_id WHERE (SELECT COUNT(*) FROM  5_) = 0"
      }
    }
    [1]=>
    array(6) {
      ["file"]=>
      string(85) "/home/steffen/workspace/doctrine/lib/Doctrine/ORM/Query/Exec/SingleSelectExecutor.php"
      ["line"]=>
      int(46)
      ["function"]=>
      string(12) "executeQuery"
      ["class"]=>
      string(24) "Doctrine\DBAL\Connection"
      ["type"]=>
      string(2) "->"
      ["args"]=>
      array(3) {
        [0]=>
        string(604) "SELECT g0_.name AS name0, g0_.description AS description1, g0_.id AS id2, g0_.uuid AS uuid3, g1_.name AS name4, g1_.description AS description5, g1_.id AS id6, g1_.uuid AS uuid7, c2_.name AS name8, c2_.description AS description9, c2_.indicator AS indicator10, c2_.resolution AS resolution11, c2_.cost AS cost12, c2_.id AS id13, c2_.uuid AS uuid14 FROM groups g0_ LEFT JOIN groups_groups g3_ ON g0_.id = g3_.parent_id LEFT JOIN groups g1_ ON g1_.id = g3_.child_id LEFT JOIN groups_channel g4_ ON g0_.id = g4_.group_id LEFT JOIN channels c2_ ON c2_.id = g4_.channel_id WHERE (SELECT COUNT(*) FROM  5_) = 0"
        [1]=>
        array(0) {
        }
        [2]=>
        array(0) {
        }
      }
    }
    [2]=>
    array(6) {
      ["file"]=>
      string(59) "/home/steffen/workspace/doctrine/lib/Doctrine/ORM/Query.php"
      ["line"]=>
      int(265)
      ["function"]=>
      string(7) "execute"
      ["class"]=>
      string(44) "Doctrine\ORM\Query\Exec\SingleSelectExecutor"
      ["type"]=>
      string(2) "->"
      ["args"]=>
      array(3) {
        [0]=>
        object(Doctrine\DBAL\Connection)#16 (11) {
          ["_conn":protected]=>
          object(Doctrine\DBAL\Driver\PDOConnection)#29 (0) {
          }
          ["_config":protected]=>
          object(Doctrine\ORM\Configuration)#7 (1) {
            ["_attributes":protected]=>
            array(7) {
              ["metadataCacheImpl"]=>
              object(Doctrine\Common\Cache\ApcCache)#8 (2) {
                ["_cacheIdsIndexId":"Doctrine\Common\Cache\AbstractCache":private]=>
                string(18) "doctrine_cache_ids"
                ["_namespace":"Doctrine\Common\Cache\AbstractCache":private]=>
                NULL
              }
              ["queryCacheImpl"]=>
              object(Doctrine\Common\Cache\ApcCache)#8 (2) {
                ["_cacheIdsIndexId":"Doctrine\Common\Cache\AbstractCache":private]=>
                string(18) "doctrine_cache_ids"
                ["_namespace":"Doctrine\Common\Cache\AbstractCache":private]=>
                NULL
              }
              ["metadataDriverImpl"]=>
              object(Doctrine\ORM\Mapping\Driver\AnnotationDriver)#13 (4) {
                ["_reader":"Doctrine\ORM\Mapping\Driver\AnnotationDriver":private]=>
                object(Doctrine\Common\Annotations\AnnotationReader)#9 (2) {
                  ["parser":"Doctrine\Common\Annotations\AnnotationReader":private]=>
                  object(Doctrine\Common\Annotations\Parser)#10 (6) {
                    ["lexer":"Doctrine\Common\Annotations\Parser":private]=>
                    object(Doctrine\Common\Annotations\Lexer)#11 (5) {
                      ["tokens":"Doctrine\Common\Lexer":private]=>
                      array(0) {
                      }
                      ["position":"Doctrine\Common\Lexer":private]=>
                      int(0)
                      ["peek":"Doctrine\Common\Lexer":private]=>
                      int(0)
                      ["lookahead"]=>
                      NULL
                      ["token"]=>
                      NULL
                    }
                    ["isNestedAnnotation":"Doctrine\Common\Annotations\Parser":private]=>
                    bool(false)
                    ["defaultAnnotationNamespace":"Doctrine\Common\Annotations\Parser":private]=>
                    string(21) "Doctrine\ORM\Mapping\"
                    ["namespaceAliases":"Doctrine\Common\Annotations\Parser":private]=>
                    array(0) {
                    }
                    ["context":"Doctrine\Common\Annotations\Parser":private]=>
                    string(0) ""
                    ["autoloadAnnotations":"Doctrine\Common\Annotations\Parser":private]=>
                    bool(false)
                  }
                  ["cache":"Doctrine\Common\Annotations\AnnotationReader":private]=>
                  object(Doctrine\Common\Cache\ArrayCache)#12 (3) {
                    ["data":"Doctrine\Common\Cache\ArrayCache":private]=>
                    array(0) {
                    }
                    ["_cacheIdsIndexId":"Doctrine\Common\Cache\AbstractCache":private]=>
                    string(18) "doctrine_cache_ids"
                    ["_namespace":"Doctrine\Common\Cache\AbstractCache":private]=>
                    NULL
                  }
                }
                ["_paths":protected]=>
                array(1) {
                  [0]=>
                  string(58) "/home/steffen/workspace/volkszaehler.org/backend/lib/Model"
                }
                ["_fileExtension":protected]=>
                string(4) ".php"
                ["_classNames":protected]=>
                NULL
              }
              ["proxyDir"]=>
              string(66) "/home/steffen/workspace/volkszaehler.org/backend/lib/Model/Proxies"
              ["proxyNamespace"]=>
              string(26) "Volkszaehler\Model\Proxies"
              ["autoGenerateProxyClasses"]=>
              bool(true)
              ["sqlLogger"]=>
              object(Volkszaehler\Util\Debug)#22 (5) {
                ["queries":protected]=>
                array(1) {
                  [0]=>
                  array(2) {
                    ["sql"]=>
                    string(604) "SELECT g0_.name AS name0, g0_.description AS description1, g0_.id AS id2, g0_.uuid AS uuid3, g1_.name AS name4, g1_.description AS description5, g1_.id AS id6, g1_.uuid AS uuid7, c2_.name AS name8, c2_.description AS description9, c2_.indicator AS indicator10, c2_.resolution AS resolution11, c2_.cost AS cost12, c2_.id AS id13, c2_.uuid AS uuid14 FROM groups g0_ LEFT JOIN groups_groups g3_ ON g0_.id = g3_.parent_id LEFT JOIN groups g1_ ON g1_.id = g3_.child_id LEFT JOIN groups_channel g4_ ON g0_.id = g4_.group_id LEFT JOIN channels c2_ ON c2_.id = g4_.channel_id WHERE (SELECT COUNT(*) FROM  5_) = 0"
                    ["parameters"]=>
                    array(0) {
                    }
                  }
                }
                ["messages":protected]=>
                array(0) {
                }
                ["started":protected]=>
                NULL
                ["level":protected]=>
                string(1) "1"
                ["created"]=>
                float(1280063214.6367)
              }
            }
          }
          ["_eventManager":protected]=>
          object(Doctrine\Common\EventManager)#14 (1) {
            ["_listeners":"Doctrine\Common\EventManager":private]=>
            array(0) {
            }
          }
          ["_isConnected":"Doctrine\DBAL\Connection":private]=>
          bool(true)
          ["_transactionNestingLevel":"Doctrine\DBAL\Connection":private]=>
          int(0)
          ["_transactionIsolationLevel":"Doctrine\DBAL\Connection":private]=>
          int(2)
          ["_params":"Doctrine\DBAL\Connection":private]=>
          array(5) {
            ["driver"]=>
            string(9) "pdo_mysql"
            ["host"]=>
            string(9) "localhost"
            ["user"]=>
            string(2) "vz"
            ["password"]=>
            string(4) "demo"
            ["dbname"]=>
            string(12) "volkszaehler"
          }
          ["_platform":protected]=>
          object(Doctrine\DBAL\Platforms\MySqlPlatform)#17 (1) {
            ["doctrineTypeMapping":protected]=>
            NULL
          }
          ["_schemaManager":protected]=>
          NULL
          ["_driver":protected]=>
          object(Doctrine\DBAL\Driver\PDOMySql\Driver)#15 (0) {
          }
          ["_isRollbackOnly":"Doctrine\DBAL\Connection":private]=>
          bool(false)
        }
        [1]=>
        array(0) {
        }
        [2]=>
        array(0) {
        }
      }
    }
    [3]=>
    array(6) {
      ["file"]=>
      string(67) "/home/steffen/workspace/doctrine/lib/Doctrine/ORM/AbstractQuery.php"
      ["line"]=>
      int(522)
      ["function"]=>
      string(10) "_doExecute"
      ["class"]=>
      string(18) "Doctrine\ORM\Query"
      ["type"]=>
      string(2) "->"
      ["args"]=>
      array(0) {
      }
    }
    [4]=>
    array(6) {
      ["file"]=>
      string(67) "/home/steffen/workspace/doctrine/lib/Doctrine/ORM/AbstractQuery.php"
      ["line"]=>
      int(360)
      ["function"]=>
      string(7) "execute"
      ["class"]=>
      string(26) "Doctrine\ORM\AbstractQuery"
      ["type"]=>
      string(2) "->"
      ["args"]=>
      array(2) {
        [0]=>
        array(0) {
        }
        [1]=>
        int(1)
      }
    }
    [5]=>
    array(6) {
      ["file"]=>
      string(83) "/home/steffen/workspace/volkszaehler.org/backend/lib/Controller/GroupController.php"
      ["line"]=>
      int(57)
      ["function"]=>
      string(9) "getResult"
      ["class"]=>
      string(26) "Doctrine\ORM\AbstractQuery"
      ["type"]=>
      string(2) "->"
      ["args"]=>
      array(0) {
      }
    }
    [6]=>
    array(6) {
      ["file"]=>
      string(78) "/home/steffen/workspace/volkszaehler.org/backend/lib/Controller/Controller.php"
      ["line"]=>
      int(54)
      ["function"]=>
      string(3) "get"
      ["class"]=>
      string(39) "Volkszaehler\Controller\GroupController"
      ["type"]=>
      string(2) "->"
      ["args"]=>
      array(0) {
      }
    }
    [7]=>
    array(6) {
      ["file"]=>
      string(67) "/home/steffen/workspace/volkszaehler.org/backend/lib/Dispatcher.php"
      ["line"]=>
      int(149)
      ["function"]=>
      string(3) "run"
      ["class"]=>
      string(34) "Volkszaehler\Controller\Controller"
      ["type"]=>
      string(2) "->"
      ["args"]=>
      array(1) {
        [0]=>
        string(3) "get"
      }
    }
    [8]=>
    array(6) {
      ["file"]=>
      string(58) "/home/steffen/workspace/volkszaehler.org/backend/index.php"
      ["line"]=>
      int(55)
      ["function"]=>
      string(3) "run"
      ["class"]=>
      string(23) "Volkszaehler\Dispatcher"
      ["type"]=>
      string(2) "->"
      ["args"]=>
      array(0) {
      }
    }
  }
  ["previous":"Exception":private]=>
  NULL
  ["errorInfo"]=>
  array(3) {
    [0]=>
    string(5) "42S02"
    [1]=>
    int(1146)
    [2]=>
    string(37) "Table 'volkszaehler.5_' doesn't exist"
  }
}

Here is my Group Entitiy:

namespace Volkszaehler\Model;

use Doctrine\Common\Collections;

use Doctrine\Common\Collections\ArrayCollection;

/**
 * Group entity
 *
 * @author Steffen Vogel <info@steffenvogel.de>
 * @package default
 *
 * @Entity
 * @Table(name="groups")
 */
class Group extends Entity {
	/** @Column(type="string", nullable=false) */
	protected $name;

	/** @Column(type="string", nullable=true) */
	protected $description;

	/**
	 * @ManyToMany(targetEntity="Channel", inversedBy="groups")
	 * @JoinTable(name="groups_channel",
	 * 		joinColumns={@JoinColumn(name="group_id", referencedColumnName="id")},
	 * 		inverseJoinColumns={@JoinColumn(name="channel_id", referencedColumnName="id")}
	 * )
	 */
	protected $channels = NULL;

	/**
	 * @ManyToMany(targetEntity="Group", inversedBy="parents")
	 * @JoinTable(name="groups_groups",
	 * 		joinColumns={@JoinColumn(name="parent_id", referencedColumnName="id")},
	 * 		inverseJoinColumns={@JoinColumn(name="child_id", referencedColumnName="id")}
	 * )
	 */
	protected $children = NULL;

	/**
	 * @ManyToMany(targetEntity="Group", mappedBy="children")
	 */
	protected $parents = NULL;

	/**
	 * construct
	 */
	public function __construct() {
		parent::__construct();

		$this->channels = new ArrayCollection();
		$this->children = new ArrayCollection();
		$this->parents = new ArrayCollection();
	}

	/**
	 * adds group as new child
	 *
	 * @param Group $child
	 * @todo check against endless recursion
	 * @todo check if the group is already member of the group
	 */
	public function addGroup(Group $child) {
		$this->children->add($child);
	}

	/**
	 * adds channel as new child
	 *
	 * @param Channel $child
	 * @todo check if the channel is already member of the group
	 */
	public function addChannel(Channel $child) {
		$this->channels->add($child);
	}

	/**
	 * getter & setter
	 */
	public function getName() { return $this->name; }
	public function setName($name) { $this->name = $name; }
	public function getDescription() { return $this->description; }
	public function setDescription($description) { $this->description = $description; }
	public function getChildren() { return $this->children; }
	public function getParents() { return $this->parents; }
	public function getChannels() { return $this->channels; }
}

Doctrine Project

[DDC-719] Error in SQL subquery for a ManyToMany selfreferencing enitity when using the SIZE() or IS EMPTY dql function