I am making the lesson administration system on symfony2 and doctrine
我正在制作关于symfony2和doctrine的课程管理系统
I am confused to use foreign key in doctrine.
我很困惑在学说中使用外键。
/Entity/User.php
/Entity/User.php
class User extends BaseUser
{
/**
* @ORM\Id
* @ORM\Column(type="integer")
* @ORM\GeneratedValue(strategy="AUTO")
*@ORM\OneToOne(targetEntity="Acme\UserBundle\Entity\Lesson", inversedBy("teacher"))
*/
protected $id;
.
.
}
/Entity/Lesson.php
/Entity/Lesson.php
class Lesson
{
/**
* @var integer
*
* @ORM\Column(name="id", type="integer")
* @ORM\Id
* @ORM\GeneratedValue(strategy="AUTO")
*/
private $id;
/**
*
* @ORM\OneToOne(targetEntity="Acme\UserBundle\Entity\User", inversedBy("id"))
* @ORM\JoinColumn(name="user_id", referencedColumnName="id")
*/
private $teacher;
.
.
}
Each 'Lesson' has one teacher registered in User.php.
每个“课程”都有一位在User.php中注册的教师。
How can I write annotation for this purpose?
如何为此目的编写注释?
I am also planning that each Lesson has multiple students from /Entity/User. How can I write annotation for this purpose? (ManyToMany?)
我还计划每个课程有来自/ Entity / User的多名学生。如何为此目的编写注释? (多对多?)
I have researched ,but I couldn't find good documents for doctrine annotation.
我已经研究过,但是找不到教条注释的好文件。
thanks a lot
非常感谢
1 个解决方案
#1
9
Here some cheat sheets for doctrine annotations : link
这里有一些学说注释的备忘单:链接
For your problem, you need to define your variables in each side of your associations.
对于您的问题,您需要在关联的每一侧定义变量。
In Lesson.php :
在Lesson.php中:
/**
* @ORM\OneToOne(
* targetEntity="Acme\UserBundle\Entity\User",
* inversedBy="lessons*removethis : name of the variable in user.php*"
* )
* @ORM\JoinColumn(name="user_id", referencedColumnName="id")
*/
private $teacher;
In User.php :
在User.php中:
/**
* @ORM\OneToOne(
* targetEntity="Acme\UserBundle\Entity\Lesson",
* mappedBy="teacher*removethis : name of the variable in lesson.php*"
* )
*/
private $lessons;
And yes, ManyToMany is good for the purpose your are looking for :)
是的,ManyToMany对你正在寻找的目的有好处:)
#1
9
Here some cheat sheets for doctrine annotations : link
这里有一些学说注释的备忘单:链接
For your problem, you need to define your variables in each side of your associations.
对于您的问题,您需要在关联的每一侧定义变量。
In Lesson.php :
在Lesson.php中:
/**
* @ORM\OneToOne(
* targetEntity="Acme\UserBundle\Entity\User",
* inversedBy="lessons*removethis : name of the variable in user.php*"
* )
* @ORM\JoinColumn(name="user_id", referencedColumnName="id")
*/
private $teacher;
In User.php :
在User.php中:
/**
* @ORM\OneToOne(
* targetEntity="Acme\UserBundle\Entity\Lesson",
* mappedBy="teacher*removethis : name of the variable in lesson.php*"
* )
*/
private $lessons;
And yes, ManyToMany is good for the purpose your are looking for :)
是的,ManyToMany对你正在寻找的目的有好处:)