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在我的應用程序中，我有一個有8個插槽的雪茄保溼盒。我希望每個插槽可容納一個可供選擇的數百支雪茄中的任何一個的實例。我可以爲一個雪茄盒添加一支雪茄到雪茄插槽，但我不能換到另一個雪茄盒並添加相同的雪茄到slot1。我在考慮在不同的雪茄櫃中，它肯定不是問題，但我現在得到例外"An exception occurred while executing 'UPDATE humidor SET slot_1 = ? WHERE id = ?' with params [2, 8]:SQLSTATE[23000]: Integrity constraint violation: 1062 Duplicate entry '2' for key 'UNIQ_4AE64E7F3CF622F8'"'我不完全是教條的專家，我不完全確定我應該如何去建模這個問題。任何建議都會很棒。Symfony關係映射多對一
這裏是插槽
/**
* Humidor
*
* @ORM\Table(name="humidor")
* @ORM\Entity(repositoryClass="AppBundle\Repository\HumidorRepository")
*/
class Humidor
{
/**
* @var int
*
* @ORM\Column(name="id", type="integer")
* @ORM\Id
* @ORM\GeneratedValue(strategy="AUTO")
*/
private $id;
/**
* @var string
*
* @ORM\Column(name="name", type="string", length=255, nullable=true)
*/
private $name;
/**
* @ORM\ManyToOne(targetEntity="UserBundle\Entity\User", inversedBy="humidors")
* @ORM\JoinColumn(name="user_id", referencedColumnName="id")
*/
private $user;
/**
* @ORM\OneToOne(targetEntity="Cigar")
* @ORM\JoinColumn(name="slot_1", referencedColumnName="id")
*/
private $slot1;
/**
* @ORM\OneToOne(targetEntity="Cigar")
* @ORM\JoinColumn(name="slot_2", referencedColumnName="id")
*/
private $slot2;
/**
* @ORM\OneToOne(targetEntity="Cigar")
* @ORM\JoinColumn(name="slot_3", referencedColumnName="id")
*/
private $slot3;
/**
* @ORM\OneToOne(targetEntity="Cigar")
* @ORM\JoinColumn(name="slot_4", referencedColumnName="id")
*/
private $slot4;
/**
* @ORM\OneToOne(targetEntity="Cigar")
* @ORM\JoinColumn(name="slot_5", referencedColumnName="id")
*/
private $slot5;
/**
* @ORM\OneToOne(targetEntity="Cigar")
* @ORM\JoinColumn(name="slot_6", referencedColumnName="id")
*/
private $slot6;
/**
* @ORM\OneToOne(targetEntity="Cigar")
* @ORM\JoinColumn(name="slot_7", referencedColumnName="id")
*/
private $slot7;
/**
* @ORM\OneToOne(targetEntity="Cigar")
* @ORM\JoinColumn(name="slot_8", referencedColumnName="id")
*/
private $slot8;
，然後我的雪茄實體
/**
* Cigar
*
* @ORM\Table(name="cigar")
* @ORM\Entity(repositoryClass="AppBundle\Repository\CigarRepository")
* @ORM\HasLifecycleCallbacks()
*/
class Cigar
{
/**
* @ORM\PrePersist()
*/
public function onPrePersist(){
$this->setName($this->getManufacturer()->getName() . " " . $this->getVariant());
}
/**
* @var int
*
* @ORM\Column(name="id", type="integer")
* @ORM\Id
* @ORM\GeneratedValue(strategy="AUTO")
*/
private $id;
/**
* @var int
*
* @ORM\Column(name="gauge", type="integer")
*/
private $gauge;
/**
* @var string
*
* @ORM\Column(name="body", type="string", length=255)
*/
private $body;
/**
* @var string
*
* @ORM\Column(name="wrapper_country", type="string", length=255)
*/
private $wrapperCountry;
/**
* @var string
*
* @ORM\Column(name="variant", type="string", length=255)
*/
private $variant;
/**
* @var string
*
* @ORM\Column(name="description", type="text")
*/
private $description;
/**
* @var string
*
* @ORM\Column(name="filler_country", type="string", length=255)
*/
private $fillerCountry;
/**
* @ORM\ManyToOne(targetEntity="Manufacturer", inversedBy="cigars")
* @JoinColumn(name="manufacturer_id", referencedColumnName="id")
*/
private $manufacturer;
/**
* @ORM\ManyToOne(targetEntity="Wrapper", inversedBy="cigars")
* @JoinColumn(name="wrapper_id", referencedColumnName="id")
*/
private $wrapper;
/**
* @ORM\ManyToOne(targetEntity="Shape", inversedBy="cigars")
* @JoinColumn(name="shape_id", referencedColumnName="id")
*/
private $shape;
/**
* @ORM\Column(type="string")
*
*/
private $image;
/**
* @var string
* @ORM\Column(type="string")
*/
private $name;