Question

我有以下实体

专业

class Professional extends User
{
    /**
     * @ORM\OneToMany(targetEntity="UserBundle\Entity\Timeslot", mappedBy="professional", cascade={"persist"})
     */
    protected $timeslots;

    /**
     * Constructor
     */
    public function __construct()
    {
        parent::__construct();
        $this->timeslots = new ArrayCollection();
    }

    /**
     * Add timeslot
     *
     * @param \UserBundle\Entity\Timeslot $timeslot
     *
     * @return Professional
     */
    public function addTimeslot(\UserBundle\Entity\Timeslot $timeslot)
    {
        $this->timeslots[] = $timeslot;

        return $this;
    }

    /**
     * Remove timeslot
     *
     * @param \UserBundle\Entity\Timeslot $timeslot
     */
    public function removeTimeslot(\UserBundle\Entity\Timeslot $timeslot)
    {
        $this->timeslots->removeElement($timeslot);
    }

    /**
     * Get timeslots
     *
     * @return \Doctrine\Common\Collections\Collection
     */
    public function getTimeslots()
    {
        return $this->timeslots;
    }

    public function clearTimeslots()
    {
        $this->timeslots->clear();
    }
}

Timeslot Entity

class Timeslot
{
    /**
     * @ORM\Column(type="integer")
     * @ORM\Id
     * @ORM\GeneratedValue(strategy="AUTO")
     */
    private $id;

    /**
     * @ORM\Column(name="day", type="string", length=20, nullable=false)
     */
    private $day;

    /**
     * @ORM\Column(name="starttime", type="time", nullable=true)
     */
    private $startTime;

    /**
     * @ORM\Column(name="endtime", type="time", nullable=true)
     */
    private $endTime;

    /**
     * @ORM\Column(name="available", type="boolean", nullable=false)
     */
    private $available = true;

    /**
     * @ORM\ManyToOne(targetEntity="UserBundle\Entity\Professional", inversedBy="timeslots", cascade={"persist"})
     * @ORM\JoinColumn(name="professional_id", referencedColumnName="id", unique=false, nullable=false)
     */
    private $professional;
}

我想删除给定专业人员的所有时间段，我尝试了

$professional->getTimeslots()->clear();
$em->persist($professional);
$em->flush();

这不会删除数据，如何删除给定专业人员的所有时间段？

Answer 1

您可以使用->clear()来实现此目的，但您必须向Professional实体添加一些代码。

@ORM\OneToMany(targetEntity="UserBundle\Entity\Timeslot", mappedBy="professional", cascade={"merge", "persist"}, orphanRemoval=true)

添加cascade =“merge”
设置orphanRemoval = true

然后在你的控制器中你可以：

$professional->getTimeslots()->clear();
$professional = $em->merge($professional);
$em->flush();

希望有所帮助

doctrine2 - 删除所有onetomany关系

1 个答案: