I have my User linked to Event entity. Basically, users may wanna go to several events and, through a many to many, I'm registering who want to go to X event.
I need to build a Query with Doctrine that pick up users if they are available (available set to 1) OR if they plan on going to an event depending on their location ( I got this one too ). The first conditions is fine. But for the second one, I need to make sure that the user has at least one event he wants to go to, registered in the many to many relation: eventNotified.
In Php I would do a foreach loop and then condition if the $user->getEventNotified() is not an empty array ( or null ) but that would make me pull up too many results. I want to select it with SQL or DQL
How can I do that?
Here is what I have achieved so far, I just need to add a OR condition if the user wants to go an event (is eventNotified not null ?):
//We only want to return users nearby who are available OR who
$qb = $this->_em->getRepository( 'Entity\User' )->createQueryBuilder('a');
$qb->andwhere( 'a.latitude > :minLat' );
$qb->andWhere( 'a.latitude < :maxLat' );
$qb->andWhere( 'a.longitude > :minLng' );
$qb->andWhere( 'a.longitude < :maxLng' );
$qb->andWhere( 'a.available = 1' );
$qb->add( 'orderBy', $qb->expr()->sum( 'a.latitude - :lat', 'a.longitude - :lng' ));
$array = array(
'minLat' => $minLat,
'maxLat' => $maxLat,
'minLng' => $minLng,
'maxLng' => $maxLng,
'lat' => $lat,
'lng' => $lng
);
$qb->setParameters( $array );
// $qb->setFirstResult( $offset );
// $qb->setMaxResults( $limit );
// print_r(array(
// 'sql' => $qb->getQuery()->getSQL(),
// 'parameters' => $qb->getQuery()->getParameters(),
// ));
$usersNearby = $qb->getQuery()->getResult();
return $usersNearbt;
And here is my user entity:
class User
{
/**
* @var integer
*
* @ORM\Column(name="id", type="integer", nullable=false, unique=true)
* @ORM\Id
* @ORM\GeneratedValue(strategy="IDENTITY")
*/
private $id;
/**
* @var integer
*
* @ORM\Column(name="fb_id", type="bigint", nullable=false, unique=true)
*/
private $fb_id;
/**
* @var string
*
* @ORM\Column(name="firstname", type="string", length=100, nullable=false, unique=false)
*/
private $first_name;
/**
* @var string
*
* @ORM\Column(name="lastname", type="string", length=100, nullable=true, unique=false)
*/
private $last_name;
/**
* @var string
*
* @ORM\Column(name="email", type="string", length=255, nullable=true, unique=true)
*/
private $email;
/**
* @var integer
*
* @ORM\Column(name="notation", type="integer", nullable=true, unique=true)
*/
private $notation;
/**
* Bidirectional - Many users have Many favorite comments (OWNING SIDE)
*
* @var \Doctrine\Common\Collections\Collection
*
* @ORM\ManyToMany(targetEntity="Entity\Category", inversedBy="userInterests")
*/
private $interests;
/**
* @var \Doctrine\Common\Collections\Collection
*
* @ORM\ManyToMany(targetEntity="Entity\User", cascade={"persist"})
* @ORM\JoinTable(name="friends",
* joinColumns={@ORM\JoinColumn(name="user_id", referencedColumnName="id")},
* inverseJoinColumns={@ORM\JoinColumn(name="friend_user_id", referencedColumnName="id")}
* )
**/
private $friends;
/**
* @var \Doctrine\Common\Collections\Collection
*
* @ORM\OneToMany(targetEntity="Entity\Request", mappedBy="user", cascade={"remove"}, orphanRemoval=true)
* @ORM\JoinColumn(nullable=true)
*/
private $requests;
/**
* @var \Doctrine\Common\Collections\Collection
*
* @ORM\OneToMany(targetEntity="Entity\Request", mappedBy="friend", cascade={"remove"}, orphanRemoval=true)
* @ORM\JoinColumn(nullable=true)
*/
private $notifications;
/**
* Bidirectional - Many users have notified they want to go to different events (OWNING SIDE)
*
* @var \Doctrine\Common\Collections\Collection
*
* @ORM\ManyToMany(targetEntity="Entity\Event", inversedBy="userNotified", cascade={"persist"})
*/
private $eventNotified;
/**
* @var integer
*
* @ORM\Column(name="age", type="integer", length=3, nullable=true, unique=false)
*/
private $age;
/**
* @var string
*
* @ORM\Column(name="description", type="text", nullable=true, unique=false)
*/
private $description;
/**
* @var string
*
* @ORM\Column(name="picture", type="string", length=300, nullable=true, unique=false)
*/
private $picture;
/**
* @var string
*
* @ORM\Column(name="genre", type="string", length=10, nullable=true, unique=false)
*/
private $genre;
/**
* @var boolean
*
* @ORM\Column(name="isregistered", type="boolean", length=1, nullable=false, unique=false)
*/
private $registered;
/**
* @var string
*
* @ORM\Column(name="latitude", type="decimal", length=64, precision=25, scale=20, nullable=true, unique=false)
*/
private $latitude;
/**
* @var string
*
* @ORM\Column(name="longitude", type="decimal", length=64, precision=25, scale=20, nullable=true, unique=false)
*/
private $longitude;
/**
* @var \Entity\Security_Key
*
* @ORM\OneToOne(targetEntity="Entity\Security_Key", cascade={"persist","remove"}, orphanRemoval=true)
* @ORM\JoinColumns({
* @ORM\JoinColumn(name="private_key_id", referencedColumnName="id", unique=true, onDelete="SET NULL")
* })
*/
private $private_key;
/**
* @var boolean
*
* @ORM\Column(name="isavailable", type="boolean", length=1, nullable=false, unique=false)
*/
private $available = 0;
...
EDIT:
Thanks to the solution below I had it working with a little tweak ( and a few optimisations ):
$qb = $this->getEntityManager()->createQueryBuilder();
$qb->select( 'USER', 'EVENT', 'c', 'p' )
->from( 'Entity\User', 'USER' )
->innerJoin( 'USER.eventNotified', 'EVENT' )
->leftJoin( 'EVENT.categories', 'c' )
->leftJoin( 'EVENT.place', 'p' )
->add('where', $qb->expr()->andX(
$qb->expr()->between('USER.latitude', ':minLat', ':maxLat'),
$qb->expr()->between('USER.longitude', ':minLng', ':maxLng')
)
)
->add( 'orderBy', $qb->expr()->sum( 'USER.latitude - :lat', 'USER.longitude - :lng' ) );
$array = array(
'minLat' => $minLat,
'maxLat' => $maxLat,
'minLng' => $minLng,
'maxLng' => $maxLng,
'lat' => $lat,
'lng' => $lng
);
$qb->setParameters( $array );
$usersNearby = $qb->getQuery()->getResult();
