我有三个实体:
以下关系:
如果我更新我的数据库结构" php app / console doctrine:schema:update --force"我收到以下错误消息。
[Doctrine\DBAL\DBALException]
An exception occurred while executing 'ALTER TABLE school ADD CONSTRAINT FK_F99EDABBDCD6CC49 FOREIGN KEY (branch_id) REFERENCES schooltype_branch (id)':
SQLSTATE[23000]: Integrity constraint violation: 1452 Cannot add or update a child row: a foreign key constraint fails (`ebm2`.`#sql-3cf_e6e`, CONSTRAINT `FK_F99EDABBDCD6CC49` FOREIGN KEY (`branch_id`) REFERENCES `schooltype_branch`
(`id`))
但我没有发现我的错误,有人可以给我一个提示吗?
我还将展示我的三个实体的一些相关部分:
学校:
class School implements BuildingInterface
{
/**
* @ORM\Column(type="integer")
* @ORM\Id
* @ORM\GeneratedValue(strategy="AUTO")
*/
protected $id;
/**
* @ORM\ManyToOne(targetEntity="SchoolType", inversedBy="schools")
* @ORM\JoinColumn(name="schooltype_id", referencedColumnName="id")
*/
protected $schooltype;
/**
* @ORM\ManyToOne(targetEntity="SchooltypeBranch", inversedBy="school")
* @ORM\JoinColumn(name="branch_id", referencedColumnName="id")
*/
protected $branch;
}
Schooltype:
class SchoolType implements BuildingTypeInterface
{
/**
* @ORM\Column(type="integer")
* @ORM\Id
* @ORM\GeneratedValue(strategy="AUTO")
*/
protected $id;
/**
* @ORM\OneToMany(targetEntity="Ebm\UserBundle\Entity\School", mappedBy="schooltype")
*/
protected $schools;
/**
* @ORM\OneToMany(targetEntity="Ebm\UserBundle\Entity\SchooltypeBranch", mappedBy="schooltype")
*/
protected $branch;
}
学校类型分支:
class SchooltypeBranch
{
/**
* @ORM\Column(type="integer")
* @ORM\Id
* @ORM\GeneratedValue(strategy="AUTO")
*/
protected $id;
/**
* @ORM\ManyToOne(targetEntity="SchoolType", inversedBy="branch")
* @ORM\JoinColumn(name="schooltype_id", referencedColumnName="id")
*/
protected $schooltype;
/**
* @ORM\OneToMany(targetEntity="Ebm\UserBundle\Entity\School", mappedBy="branch")
*/
protected $school;
}
答案 0 :(得分:0)
显然外键约束失败,例如school
表中branch_id
表中没有schooltype_branch
。