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问题描述

我希望你能帮我解决这个问题,因为我真的看不到这里有什么问题。



我有两个实体: RokZaPrijavuProjekta AND Predmet



RokZaPrijavuProjekta:

  / * * 
* @ ORM\Table(name =rok_prijava_projekta)
* @ ORM\Entity(repositoryClass =JP\AdminBundle\Repository\RokZaPrijavuProjektaRepository)
* /
class RokZaPrijavuProjekta
{
/ **
* @var整数$ id
*
* @ ORM\Column(name =id type =integer)
* @ ORM\Id
* @ ORM\GeneratedValue(strategy =AUTO)
* /
private $ id;

/ **
* @var整数$ id_predmet
* @ ORM\ManyToOne(targetEntity =Predmet)
* @ ORM\Column(name =id_predmet,type =integer)
* /
private $ predmet;

/ **
* @var date $ od
* @ ORM\Column(name =od,type =date)
* /
private $ od;

/ **
* @var date $ do
* @ ORM\Column(name =do,type =date)
*
private $ do;

/ **
* @var string $ info
* @ ORM\Column(name =info,type =string,length = 120)
* /
private $ info;
}

Predmet实体代码

  / ** 
* @ ORM\Table(name =predmeti)
* @ ORM\Entity repositoryClass =JP\AdminBundle\Repository\PredmetRepository)
* /
class Predmet
{
/ **
* @var integer $ id
* @ ORM\Column(name =id,type =integer)
* @ ORM\Id
* @ ORM\GeneratedValue(strategy =AUTO b $ b * /
private $ id;

/ **
* @var string $ sifra
* @ ORM\Column(name =sifra,type =string,length = 64)
* /
private $ sifra;

/ **
* @var boolean $ vidljiv
* @ ORM\Column(name =vidljiv,type =boolean)
*
private $ vidljiv;
}

存储库方法:

  $ q = $ this-> createQueryBuilder('r')
- > select('rzpp')
- > where('rzpp.predmet =:predmet')
- > from('JPAdminBundle:RokZaPrijavuProjekta','rzpp')
- > leftJoin(rzpp.predmet,p )
- > setParameter('predmet',$ predmet)
- > getQuery();

所有类成员的getter和setter都被正确定义。



现在,RokZaPrijavuProjekta对Predmet有外键引用,所以这些RokZaPrijavuProjekta中有许多可以有相同的Predmet。



我想为此创建单向ManyToOne关系,但是不断收到异常:

I全部是,但是发现这是定义单向多对一关系的首选方式。



你有什么想法吗?
$ b




更新




  • 添加了Predmet实体代码...

  • 添加存储库方法






很多!



Regards,
Jovan

解决方案

可以你显示Predmet实体代码?



或者只是试试这个代码:

  // RokZaPrijavuProjekta 
/ **
* @ ORM\ManyToOne(targetEntity =Predmet,inversedBy =rokzaprojects)
* /
保护$ predmet;


// Predmet
/ **
* @ ORM\OneToMany(targetEntity =RokZaPrijavuProjekta,mappedBy =predmet)
* /
protected $ rokzaprojects;


I hope you can help me with this problem because I really cannot see what is wrong here.

I have 2 entities: RokZaPrijavuProjekta AND Predmet.

RokZaPrijavuProjekta:

/**
* @ORM\Table(name="rok_prijava_projekta")
* @ORM\Entity(repositoryClass="JP\AdminBundle\Repository\RokZaPrijavuProjektaRepository")
*/
class RokZaPrijavuProjekta
{
/**
 * @var integer $id
 *
 * @ORM\Column(name="id", type="integer")
 * @ORM\Id
 * @ORM\GeneratedValue(strategy="AUTO")
 */
private $id;

/**
 * @var integer $id_predmet
 * @ORM\ManyToOne(targetEntity="Predmet")
 * @ORM\Column(name="id_predmet", type="integer")
 */
private $predmet;

/**
 * @var date $od
 * @ORM\Column(name="od", type="date")
 */
private $od;

/**
 * @var date $do
 * @ORM\Column(name="do", type="date")
 */
private $do;

/**
 * @var string $info
 * @ORM\Column(name="info", type="string", length=120)
 */
private $info;
}

Predmet entity code:

/**
 * @ORM\Table(name="predmeti")
 * @ORM\Entity(repositoryClass="JP\AdminBundle\Repository\PredmetRepository")
 */
class Predmet
{
/**
 * @var integer $id
 * @ORM\Column(name="id", type="integer")
 * @ORM\Id
 * @ORM\GeneratedValue(strategy="AUTO")
 */
private $id;

/**
 * @var string $sifra
 * @ORM\Column(name="sifra", type="string", length=64)
 */
private $sifra;

/**
 * @var boolean $vidljiv
 * @ORM\Column(name="vidljiv", type="boolean")
 */
private $vidljiv;
}

Repository method:

$q = $this->createQueryBuilder('r')
->select('rzpp')
->where('rzpp.predmet = :predmet')
->from('JPAdminBundle:RokZaPrijavuProjekta', 'rzpp')
->leftJoin("rzpp.predmet", "p")
->setParameter('predmet', $predmet)
->getQuery();

Both getters and setters for all class members are defined properly.

Now, "RokZaPrijavuProjekta" has a foreign-key reference to "Predmet", so many of these "RokZaPrijavuProjekta" can have the same "Predmet".

I want to create unidirectional ManyToOne relation for this purpose but keep getting exception thrown:

I went all over Doctrine documentation, but found that this is the preferred way to define unidirectional many-to-one relation.

Do you have any idea what might be a problem here?


UPDATE

  • Added Predmet entity code...
  • Added Repository method

Thanks a lot!

Regards,Jovan

解决方案

Can you show Predmet entity code?

Or just try out this code:

// RokZaPrijavuProjekta
/**
 * @ORM\ManyToOne(targetEntity="Predmet", inversedBy="rokzaprojects")
 */
protected $predmet;


//Predmet
/**
 * @ORM\OneToMany(targetEntity="RokZaPrijavuProjekta", mappedBy="predmet")
 */
protected $rokzaprojects;

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09-05 01:56