我有一个多对多关系，如果我尝试从 MySQL 中删除一个相关项目，我会因错误而被阻止；相反，如果我尝试从 Easyadmin 中删除相同的项目，我不会被阻止。
我的预期行为也会被 Easyadmin 阻止（v. 1.16 和 Symfony v. 3.3.10）。请帮忙...
这些是我的 2 个实体：
带领：
[...]
/**
* @ORM\ManyToMany(targetEntity="LeadInterest", inversedBy="leads")
* @JoinTable(name="leads_interests",
* joinColumns={@ORM\JoinColumn(name="lead_id", referencedColumnName="id")},
* inverseJoinColumns={@ORM\JoinColumn(name="interest_id", referencedColumnName="id")}
* )
* @ORM\OrderBy({"interestName": "ASC"})
*/
private $interests = null;
[...]
public function __construct() {
$this->interests = new ArrayCollection();
}
public function addInterest(LeadInterest $i)
{
if(!$this->interests->contains($i)) {
$this->interests->add($i);
}
}
public function removeInterest(LeadInterest $i)
{
$this->interests->removeElement($i);
}
public function getInterests()
{
return $this->interests;
}
[...]
潜在客户：
[...]
/**
* @ORM\ManyToMany(targetEntity="Lead", mappedBy="interests")
*/
private $leads;
[...]
public function __construct() {
$this->leads = new ArrayCollection();
$this->lastUpdate = new \DateTime();
}
public function addLead(Lead $lead)
{
$this->leads[] = $lead;
return $this;
}
public function removeLead(Lead $lead)
{
$this->leads->removeElement($lead);
}
public function getLeads()
{
return $this->leads;
}
[...]
这是我尝试从 MySQL 中删除 une 项目时的错误：
mysql> delete from leadInterest where id=6;
ERROR 1451 (23000): Cannot delete or update a parent row: a foreign key constraint fails (`app`.`leads_interests`, CONSTRAINT `FK_2135A27B5A95FF89` FOREIGN KEY (`interest_id`) REFERENCES `leadInterest` (`id`))
mysql> delete from lead where id=88;
ERROR 1451 (23000): Cannot delete or update a parent row: a foreign key constraint fails (`app`.`leads_interests`, CONSTRAINT `FK_2135A27B55458D` FOREIGN KEY (`lead_id`) REFERENCES `lead` (`id`))
谢谢