学说多对多的查询生成器

Question

我有一个联系人实体和一个用户实体与多对多的关系来设置收藏夹。

我尝试构建查询来查找联系人是否是用户的最爱。学说返回以下错误：

[Semantical Error] line 0, col 81 near 'favoris = :user': Error: Invalid PathExpression. StateFieldPathExpression or SingleValuedAssociationField expected. 

这里是我的查询：

public function isFavori(users $user, contacts $contacts) { 

    $em = $this->getEntityManager(); 
    $qb = $em->createQueryBuilder('c'); 
    $query = $qb 
     ->select('1') 
     ->from('contactsBundle:contacts', 'c') 
     ->join('contactsBundle:users', 'f', 'WITH', 'c.favoris = :user') 
     ->where('c = :contact') 
     ->setParameter('user', $user) 
     ->setParameter('contact', $contacts) 
    ; 
    $querystring = $qb->getQuery(); 
    return $qb->getQuery()->getResult(); 

} 

下面是从接触实体加入注释：

/** 
* @ORM\ManyToMany(targetEntity="Curuba\contactsBundle\Entity\users", inversedBy="contactsfavoris") 
* 
*/ 
private $favoris; 

Answer 1

我创造我自己的类结束了。在使用该软件包时，这也是为了更灵活地操作查询所必需的：APYDataGridBundle。

因此，这里是我：

contacts.php：

/** 
* @ORM\OneToMany(targetEntity="Curuba\contactsBundle\Entity\contactsfavoris", mappedBy="contact", orphanRemoval=true, cascade={"remove", "persist"}) 
* @ORM\JoinColumn(nullable=true) 
*/ 
private $usersFavoris; 

users.php：

/** 
* @ORM\OneToMany(targetEntity="Curuba\contactsBundle\Entity\contactsfavoris", mappedBy="user") 
* 
*/ 
private $contactsfavoris; 

contactsfavoris.php

/** 
* @ORM\ManyToOne(targetEntity="contacts", inversedBy="usersFavoris") 
*/ 
private $contact; 

/** 
* @ORM\ManyToOne(targetEntity="users", inversedBy="contactsfavoris") 
*/ 
private $user; 

查询：

public function isFavori(users $user, contacts $contacts) { 

    $em = $this->getEntityManager(); 
    $qb = $em->createQueryBuilder('c'); 
    $userid = $user->getId(); 
    $contactId = $contacts->getId(); 
    $query = $qb 
     ->select('1') 
     ->from('contactsBundle:contactsfavoris','cf') 
     ->where('cf.user = :user') 
     ->andWhere('cf.contact = :contact') 
     ->setParameter('user', $userid) 
     ->setParameter('contact', $contacts) 
    ; 

    try { 
     $result = $qb->getQuery()->getSingleScalarResult(); 
    } catch (Exception $e) { 
     $result = 0; 
    } 
    if ($result == 1) { 
     $favori = true; 
    } else { 
     $favori = false; 
    } 

    return $favori; 

} 

Answer 2

首先，你需要一个JoinTable增加ManyToManyAssociation：

/** 
* @ORM\ManyToMany(targetEntity="Curuba\contactsBundle\Entity\users", inversedBy="contactsfavoris") 
* @JoinTable(name="user_contact_favoris") 
*/ 
private $favoris; 

现在你查询：

public function isFavori(users $user, contacts $contact) { 

    $em = $this->getEntityManager(); 
    $qb = $em->createQueryBuilder('c'); 
    $qb->select('1') 
     ->from('user_contact_favoris', 'f') 
     ->innerJoin('contactsBundle:contacts', 'c', 'WITH', 'f.contact = :contact') 
     ->innerJoin('contactsBundle:users', 'u', 'WITH', 'f.user = :user') 
     ->setParameter('user', $user) 
     ->setParameter('contact', $contact) 
    ; 

    return $qb->getQuery()->getResult(); 
} 

希望它可以帮助