[英]Mapping one-to-one relationship + Symfony2
I have a database with a table users
with fields: user_id, username, password
, ... . 我有一个数据库,其中的表
users
具有以下字段: user_id, username, password
,...。 I also have a table players
with player_name, player_position
, ... AND a FK user_id
. 我也有一个具有
player_name, player_position
,...和FK user_id
的牌桌players
。 Image relationship: 图片关系:
I genered the entities from the database but now I would like to get the player from user like this $user->getPlayer(). 我从数据库中生成了实体,但现在我想从像$ user-> getPlayer()这样的用户那里获取播放器。 And doctrine didn't generate player in Users entity, only user in Players Entity.
教义并没有在“用户”实体中生成玩家,而是仅在“玩家”实体中生成用户。
This is what I have now: 这就是我现在所拥有的:
/**
* @var \VolleyScout\VolleyScoutBundle\Entity\Players
*
* @ORM\OneToOne(targetEntity="VolleyScout\VolleyScoutBundle\Entity\Players")
* @JoinColumn(name="user_id", referencedColumnName="userId")
*/
private $player;
/**
* Get player
*
* @return \VolleyScout\VolleyScoutBundle\Entity\Players
*/
public function getPlayer() {
return $this->player;
}
/**
* Set player
*
* @param \VolleyScout\VolleyScoutBundle\Entity\Players $player
* @return Users
*/
public function setPlayer(\VolleyScout\VolleyScoutBundle\Entity\Players $player = null){
$this->player = $player;
return $this;
}
But when I try $user->getPlayer() I always get null. 但是当我尝试$ user-> getPlayer()时,我总是得到null。 (And the user_id is in players table)
(并且user_id在玩家表中)
UPDATE: 更新:
My Players Entity: 我的玩家实体:
<?php
namespace VolleyScout\VolleyScoutBundle\Entity;
use Doctrine\ORM\Mapping as ORM;
/**
* Players
*
* @ORM\Table(name="players", indexes={@ORM\Index(name="fk_players_users1_idx", columns={"user_id"}), @ORM\Index(name="fk_players_teams1_idx", columns={"team_id"}), @ORM\Index(name="fk_players_myteam1_idx", columns={"myteam_id"})})
* @ORM\Entity
*/
class Players
{
/**
* @var string
*
* @ORM\Column(name="player_name", type="string", length=255, nullable=false)
*/
private $playerName;
/**
* @var string
*
* @ORM\Column(name="player_licensenumber", type="string", length=45, nullable=false)
*/
private $playerLicensenumber;
/**
* @var string
*
* @ORM\Column(name="player_position", type="string", nullable=false)
*/
private $playerPosition;
/**
* @var integer
*
* @ORM\Column(name="player_birthyear", type="integer", nullable=true)
*/
private $playerBirthyear;
/**
* @var integer
*
* @ORM\Column(name="player_id", type="integer")
* @ORM\Id
* @ORM\GeneratedValue(strategy="IDENTITY")
*/
private $playerId;
/**
* @var \VolleyScout\VolleyScoutBundle\Entity\Myteam
*
* @ORM\ManyToOne(targetEntity="VolleyScout\VolleyScoutBundle\Entity\Myteam")
* @ORM\JoinColumns({
* @ORM\JoinColumn(name="myteam_id", referencedColumnName="myteam_id")
* })
*/
private $myteam;
/**
* @var \VolleyScout\VolleyScoutBundle\Entity\Teams
*
* @ORM\ManyToOne(targetEntity="VolleyScout\VolleyScoutBundle\Entity\Teams")
* @ORM\JoinColumns({
* @ORM\JoinColumn(name="team_id", referencedColumnName="team_id")
* })
*/
private $team;
/**
* @var \VolleyScout\VolleyScoutBundle\Entity\Users
*
* @ORM\ManyToOne(targetEntity="VolleyScout\VolleyScoutBundle\Entity\Users")
* @ORM\JoinColumns({
* @ORM\JoinColumn(name="user_id", referencedColumnName="user_id")
* })
*/
private $user;
/**
* Set playerName
*
* @param string $playerName
* @return Players
*/
public function setPlayerName($playerName)
{
$this->playerName = $playerName;
return $this;
}
/**
* Get playerName
*
* @return string
*/
public function getPlayerName()
{
return $this->playerName;
}
/**
* Set playerLicensenumber
*
* @param string $playerLicensenumber
* @return Players
*/
public function setPlayerLicensenumber($playerLicensenumber)
{
$this->playerLicensenumber = $playerLicensenumber;
return $this;
}
/**
* Get playerLicensenumber
*
* @return string
*/
public function getPlayerLicensenumber()
{
return $this->playerLicensenumber;
}
/**
* Set playerPosition
*
* @param string $playerPosition
* @return Players
*/
public function setPlayerPosition($playerPosition)
{
$this->playerPosition = $playerPosition;
return $this;
}
/**
* Get playerPosition
*
* @return string
*/
public function getPlayerPosition()
{
return $this->playerPosition;
}
/**
* Set playerBirthyear
*
* @param integer $playerBirthyear
* @return Players
*/
public function setPlayerBirthyear($playerBirthyear)
{
$this->playerBirthyear = $playerBirthyear;
return $this;
}
/**
* Get playerBirthyear
*
* @return integer
*/
public function getPlayerBirthyear()
{
return $this->playerBirthyear;
}
/**
* Get playerId
*
* @return integer
*/
public function getPlayerId()
{
return $this->playerId;
}
/**
* Set myteam
*
* @param \VolleyScout\VolleyScoutBundle\Entity\Myteam $myteam
* @return Players
*/
public function setMyteam(\VolleyScout\VolleyScoutBundle\Entity\Myteam $myteam = null)
{
$this->myteam = $myteam;
return $this;
}
/**
* Get myteam
*
* @return \VolleyScout\VolleyScoutBundle\Entity\Myteam
*/
public function getMyteam()
{
return $this->myteam;
}
/**
* Set team
*
* @param \VolleyScout\VolleyScoutBundle\Entity\Teams $team
* @return Players
*/
public function setTeam(\VolleyScout\VolleyScoutBundle\Entity\Teams $team = null)
{
$this->team = $team;
return $this;
}
/**
* Get team
*
* @return \VolleyScout\VolleyScoutBundle\Entity\Teams
*/
public function getTeam()
{
return $this->team;
}
/**
* Set user
*
* @param \VolleyScout\VolleyScoutBundle\Entity\Users $user
* @return Players
*/
public function setUser(\VolleyScout\VolleyScoutBundle\Entity\Users $user = null)
{
$this->user = $user;
return $this;
}
/**
* Get user
*
* @return \VolleyScout\VolleyScoutBundle\Entity\Users
*/
public function getUser()
{
return $this->user;
}
}
UPDATE 2 : In my Users Entity Class I have now: 更新2 :在我的用户实体类中,我现在有:
/**
* @var \VolleyScout\VolleyScoutBundle\Entity\Players
*
* @ORM\OneToMany(targetEntity="VolleyScout\VolleyScoutBundle\Entity\Players")
* @ORM\JoinColumns({
* @ORM\JoinColumn(name="user_id", referencedColumnName="user_id")
* })
*/
private $player;
But it still doesn't work .. 但这仍然行不通..
Your annotations are not set correctly (specifically, the JoinColumn). 您的注释设置不正确(特别是JoinColumn)。 It is interesting that you aren't getting an error, but anyways... replace this:
有趣的是您没有收到错误,但是无论如何...替换为:
/**
* @var \VolleyScout\VolleyScoutBundle\Entity\Players
*
* @ORM\OneToOne(targetEntity="VolleyScout\VolleyScoutBundle\Entity\Players")
* @JoinColumn(name="user_id", referencedColumnName="userId")
*/
private $player;
with this: 有了这个:
/**
* @var \VolleyScout\VolleyScoutBundle\Entity\Players
*
* @ORM\OneToOne(targetEntity="VolleyScout\VolleyScoutBundle\Entity\Players")
* @ORM\JoinColumn(name="user_id", referencedColumnName="user_id")
*/
private $player;
notice that your referencedColumnName
should be the name as it is shown in the database, not the Doxtrine entity. 请注意,您的
referencedColumnName
应该是数据库中显示的名称,而不是Doxtrine实体。 Start by fixing those errors, and it should solve the problem. 首先修复这些错误,它应该可以解决问题。
UPDATE UPDATE
This is a very different setup it you want a manyToOne
relationship. 您需要
manyToOne
关系,这是一个非常不同的设置。
/**
* @var \VolleyScout\VolleyScoutBundle\Entity\Players
*
* @ORM\OneToMany(targetEntity="Players", mappedBy="user_id")
*/
private $players;
public function __construct()
{
$this->players = new ArrayCollection();
}
Because $players
can now have many values, it should be set as an ArrayCollection
. 由于
$players
现在可以具有许多值,因此应将其设置为ArrayCollection
。 I also made the variable $players
instead of $player
, for ease of readability. 为了便于阅读,我还使变量
$players
代替了$player
。
You should really familiarize yourself with the Symfony Docs, this is a very simple problem that is described very clear in the Symfony docs 你真的应该熟悉Symfony的文档,这是在描述非常清楚一个很简单的问题, Symfony的文档
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