我有一个带有两个表和一个联接表的系统。鲁尼奥有很多奴维奴，一个仆人有很多鲁尼奴。为此，我有一个reuniao表，servidor表和reuniaoservidor表。我想与许多现有的服务对象一起保留一个reuniao，但是我不想在保留一个reuniao时保留一个服务对象。问题是... 当我尝试坚持时，鲁尼奥主义对我说：
“通过关系'SistemaIfnmg \ Entity \ Reuniao＃servidores'找到了一个新实体，该关系未配置为级联实体的持久操作：SistemaIfnmg \ Entity \ ReuniaoServidor @ 000000006a69473200007f33ddb737e2。要解决此问题：要么显式调用EntityManager＃在未知实体上持久化（）或配置级联，将该关联持久化在映射中，例如@ManyToOne（..，cascade = {“ persist”}）。 #__ toString（）'以获得线索。”
实体：
Reuniao.php
namespace SistemaIfnmg\Entity;
use SistemaIfnmg\Entity;
use Doctrine\ORM\Mapping as ORM;
/**
* @ORM\Entity
* @ORM\Table(name="reuniao")
* @ORM\HasLifecycleCallbacks()
*/
class Reuniao
{
/**
* @ORM\Id
* @ORM\Column(type="integer")
* @ORM\GeneratedValue(strategy="AUTO")
*/
private $id;
/**
* @ORM\Column(type="string", length=255)
*/
private $titulo;
/**
* @ORM\Column(type="string", length=255)
*/
private $descricao;
/**
* @ORM\Column(type="datetime")
*/
private $data;
/**
* @ORM\OneToMany(targetEntity="SistemaIfnmg\Entity\ReuniaoServidor", mappedBy="reuniaofk")
*/
private $servidores;
public function __construct(){
$this->servidores = new \Doctrine\Common\Collections\ArrayCollection();
}
/**
* Get id
*
* @return integer
*/
public function getId()
{
return $this->id;
}
/**
* @param int $id
*/
public function setId($id)
{
$this->id = $id;
}
/**
* @return string
*/
public function getTitulo()
{
return $this->titulo;
}
/**
* @param string $titulo
*/
public function setTitulo($titulo)
{
$this->titulo = $titulo;
}
/**
* @return string
*/
public function getDescricao()
{
return $this->descricao;
}
/**
* @param string $descricao
*/
public function setDescricao($descricao)
{
$this->descricao = $descricao;
}
/**
* @return string
*/
public function getData()
{
return $this->data;
}
/**
* @param string $data
*/
public function setData($data)
{
$this->data = $data;
}
/**
* Add servidores
* @param \SistemaIfnmg\Entity\ReuniaoServidor $servidor
* @return Reuniao
*/
public function addServidor(\SistemaIfnmg\Entity\ReuniaoServidor $servidor){
$this->servidores[] = $servidor;
}
/**
* Remove servidor
*
* @param \SistemaIfnmg\Entity\ReuniaoServidor $servidor
*/
public function removeServidor(\SistemaIfnmg\Entity\ReuniaoServidor $servidor){
$this->servidores->removeElement($servidor);
}
/**
* Get servidores
*
* @return \Doctrine\Common\Collections\Collection
*/
public function getServidores(){
return $this->servidores;
}
}
?>
Servidor.php
<?php
namespace SistemaIfnmg\Entity;
use SistemaIfnmg\Entity;
use Doctrine\ORM\Mapping as ORM;
/**
* @ORM\Entity()
* @ORM\Table(name="servidor")
*/
class Servidor
{
/**
* @ORM\Column(name="id", type="integer")
* @ORM\Id
* @ORM\GeneratedValue(strategy="IDENTITY")
* @var integer $id
*/
private $id;
/**
* @var string
*
* @ORM\Column(name="nome", type="string", length=255)
*/
private $nome;
/**
* @var string
*
* @ORM\Column(name="sobrenome", type="string", length=255)
*/
private $sobrenome;
/**
* @var string
*
* @ORM\Column(name="cargo", type="string", length=255)
*/
private $cargo;
/**
* @var string
*
* @ORM\Column(name="matricula", type="string", length=255)
*/
private $matricula;
/**
* Get id
*
* @return int
*/
public function getId()
{
return $this->id;
}
/**
* Set id
* @param int $id
*/
public function setId($id)
{
$this->id = $id;
}
/**
* Get nome
*
* @return string
*/
public function getNome()
{
return $this->nome;
}
/**
* Set nome
*
* @param string $nome
*/
public function setNome($nome)
{
$this->nome = $nome;
}
/**
* Get sobrenome
*
* @return string
*/
public function getSobrenome()
{
return $this->sobrenome;
}
/**
* Set sobrenome
* @param string $sobrenome
*/
public function setSobrenome($sobrenome)
{
$this->sobrenome = $sobrenome;
}
/**
* Get cargo
*
* @return string
*/
public function getCargo()
{
return $this->cargo;
}
/**
* Set cargo
*
* @param string $cargo
*/
public function setCargo($cargo)
{
$this->cargo = $cargo;
}
/**
* Get matricula
*
* @return string
*/
public function getMatricula()
{
return $this->matricula;
}
/**
* Set matricula
*
* @param string $matricula
*/
public function setMatricula($matricula)
{
$this->matricula = $matricula;
}
}
?>
ReuniadoServidor.php
<?php
namespace SistemaIfnmg\Entity;
use Doctrine\ORM\Mapping as ORM;
/**
* ReuniaoServidor
*
* @ORM\Table(name="reuniaoservidor", indexes={@ORM\Index(name="fk_Reuniao_has_Servidor_Reuniao1_idx", columns={"reuniaofk"}), @ORM\Index(name="fk_Reuniao_has_Servidor_Servidor1_idx", columns= {"servidorfk"})})
* @ORM\Entity
*/
class ReuniaoServidor
{
/**
* @ORM\Id
* @ORM\Column(type="integer")
* @ORM\GeneratedValue(strategy="AUTO")
*/
private $id;
/**
* @ORM\ManyToOne(targetEntity="SistemaIfnmg\Entity\Reuniao", inversedBy="servidores", cascade={"persist"})
* @ORM\JoinColumns({
* @ORM\JoinColumn(name="reuniaofk", referencedColumnName="id")
* })
*/
private $reuniaofk;
/**
* @ORM\ManyToOne(targetEntity="SistemaIfnmg\Entity\Servidor", inversedBy="servidores")
* @ORM\JoinColumns({
* @ORM\JoinColumn(name="servidorfk", referencedColumnName="id")
* })
*/
private $servidorfk;
/**
* Get id
* @return integer
*/
public function getId()
{
return $this->id;
}
/**
* @param int $id
*/
public function setId($id)
{
$this->id = $id;
}
/**
* Get reuniaofk
* @return \SistemaIfnmg\Entity\Reuniao
*/
public function getReuniaofk()
{
return $this->reuniaofk;
}
/**
* Set reuniaofk
* @param \SistemaIfnmg\Entity\Reuniao $reuniaofk
* @return ReuniaoServidor
*/
public function setReuniaofk($reuniaofk)
{
$this->reuniaofk = $reuniaofk;
return $this;
}
/**
* Get servidorfk
* @return \SistemaIfnmg\Entity\Servidor
*/
public function getServidorfk()
{
return $this->servidorfk;
}
/**
* Set servidorfk
* @param \SistemaIfnmg\Entity\Servidor $servidorfk
* @return ReuniaoServidor
*/
public function setServidorfk($servidorfk)
{
$this->servidorfk = $servidorfk;
return $this;
}
}
?>
我很久以来一直在尝试纠正此错误，请帮忙？ 非常感谢
答案 0 :(得分：0)
您不需要将Reuniao连接到Servidor的实体（ReuniaoServidor实体），因为Doctrine会为您处理连接表。您只需要在JoinTable映射中指定连接列即可。
在Reuniao.php中，将伺服服务器的映射更改为：
/**
* @ORM\ManyToMany(targetEntity="SistemaIfnmg\Entity\Servidor")
* @ORM\JoinTable(name="reuniao_servidor",
* joinColumns={@ORM\JoinColumn(name="ruuniao_id", referencedColumnName="id")},
* inverseJoinColumns{@ORM\JoinColumn(name="servidor_id", referencedColumnName="id")}
* )
*/
private $servidores;
还添加了一个构造函数，用于初始化集合的数组
public function __construct()
{
$this->servidores = new ArrayCollection();
}