教义连接表以获得相同的ID

Question

我是 symfony 的初学者，我必须使用收集表单创建一个网站来预订演出门票。

界面简单，用户选择自己想要的票数，然后显示所需票数的表单原型（姓名和姓氏输入）。这部分很适合我。

每次提交 = 新预订

我在 mysql 中有 2 个表“reservations”和“ticket”，我想在提交表单后得到这个渲染：

订桌：

预订 id = "1"

预订 id = "2"

桌坯：

Billet id="1" name="thomas", surname="good", reservation_id="1"

Billet id="2" name="laura", surname="senior", reservation_id="1"

Billet id="3" name="pierre", surname="martin", reservation_id="2"

---

问题是我得到了这个结果：

Billet id="1" name="thomas", surname="good", reservation_id="Null"

Billet id="2" name="laura", surname="senior", reservation_id="Null"

---

这是我的实体：

<?php

namespace Louvre\PagesBundle\Entity;

use Doctrine\ORM\Mapping as ORM;

/**
 * Billet
 *
 * @ORM\Table(name="billet")
 * @ORM\Entity(repositoryClass="Louvre\PagesBundle\Repository\BilletRepository")
 */
class Billet
{
    /**
     * @var int
     *
     * @ORM\Column(name="id", type="integer")
     * @ORM\Id
     * @ORM\GeneratedValue(strategy="AUTO")
     */
    private $id;

    /**
     * @ORM\ManyToOne(targetEntity="Reservations", inversedBy="billets")
     * @ORM\JoinColumn(name="reservations_id", referencedColumnName="id")
     */
    protected $reservations;

    /**
     * @var string
     *
     * @ORM\Column(name="prenom", type="string", length=255)
     */
    private $prenom;

    /**
     * @var string
     *
     * @ORM\Column(name="nom", type="string", length=255)
     */
    private $nom;


    /**
     * Get id
     *
     * @return integer 
     */
    public function getId()
    {
        return $this->id;
    }

    /**
     * Set prenom
     *
     * @param string $prenom
     * @return Billet
     */
    public function setPrenom($prenom)
    {
        $this->prenom = $prenom;

        return $this;
    }

    /**
     * Get prenom
     *
     * @return string 
     */
    public function getPrenom()
    {
        return $this->prenom;
    }

    /**
     * Set nom
     *
     * @param string $nom
     * @return Billet
     */
    public function setNom($nom)
    {
        $this->nom = $nom;

        return $this;
    }

    /**
     * Get nom
     *
     * @return string 
     */
    public function getNom()
    {
        return $this->nom;
    }
}


<?php

namespace Louvre\PagesBundle\Entity;

use Doctrine\ORM\Mapping as ORM;

use Doctrine\Common\Collections\ArrayCollection;

/**
 * Reservations
 *
 * @ORM\Table(name="reservations")
 * @ORM\Entity(repositoryClass="Louvre\PagesBundle\Repository\ReservationsRepository")
 */
class Reservations
{
    /**
     * @var int
     *
     * @ORM\Column(name="id", type="integer")
     * @ORM\Id
     * @ORM\GeneratedValue(strategy="AUTO")
     */
    private $id;


    /**
     * Get id
     *
     * @return integer 
     */
    public function getId()
    {
        return $this->id;
    }


    /**
     * @ORM\OneToMany(targetEntity="Billet", mappedBy="reservations", cascade={"persist","remove"})
     */
    protected $billets;


    public function __construct()
    {
        $this->billets = new ArrayCollection();
    }

    public function getBillets()
    {
        return $this->billets;
    }

    public function setBillets(ArrayCollection $billets)
    {
        $this->billets = $billets;
    }

}

Answer 1

你的命名有点混乱……

我建议：

class Billet
{
/**
 * @var int
 *
 * @ORM\Column(name="id", type="integer")
 * @ORM\Id
 * @ORM\GeneratedValue(strategy="AUTO")
 */
private $id;

/**
 * @ORM\ManyToOne(targetEntity="Reservation", inversedBy="billets")
 * @ORM\JoinColumn(name="reservation_id", referencedColumnName="id")
 */
protected $reservation;

/**
 * @var string
 *
 * @ORM\Column(name="prenom", type="string", length=255)
 */
private $prenom;

/**
 * @var string
 *
 * @ORM\Column(name="nom", type="string", length=255)
 */
private $nom;


/**
 * Get id
 *
 * @return integer 
 */
public function getId()
{
    return $this->id;
}

/**
 * Set prenom
 *
 * @param string $prenom
 * @return Billet
 */
public function setPrenom($prenom)
{
    $this->prenom = $prenom;

    return $this;
}

/**
 * Get prenom
 *
 * @return string 
 */
public function getPrenom()
{
    return $this->prenom;
}

/**
 * Set nom
 *
 * @param string $nom
 * @return Billet
 */
public function setNom($nom)
{
    $this->nom = $nom;

    return $this;
}

/**
 * Get nom
 *
 * @return string 
 */
public function getNom()
{
    return $this->nom;
}

public function setReservation(Reservation $reservation)
{
    $this->reservation = $reservation;

    return $this;
}

public function getReservation()
{
    return $this->reservation;
}
}  

Reservation 实体

/**
 * Reservation
 *
 * @ORM\Table(name="reservations")
 * @ORM\Entity(repositoryClass="Louvre\PagesBundle\Repository\ReservationsRepository")
 */
class Reservation
{
/**
 * @var int
 *
 * @ORM\Column(name="id", type="integer")
 * @ORM\Id
 * @ORM\GeneratedValue(strategy="AUTO")
 */
private $id;


/**
 * Get id
 *
 * @return integer 
 */
public function getId()
{
    return $this->id;
}


/**
 * @ORM\OneToMany(targetEntity="Billet", mappedBy="reservations", cascade={"persist","remove"})
 */
protected $billets;


public function __construct()
{
    $this->billets = new ArrayCollection();
}

public function getBillets()
{
    return $this->billets;
}

public function addBillet(Billet $billet)
{
    if (!$this->billets->contains($billet))
    {
        $this->billets->add($billet);
        $billet->setReservation($this);
    }

    return $this;
}

public function removeBillet(Billet $billet)
{
    // you can implement for collection
}

public function setBillets($billets)
{
    $this->billets = new ArrayCollection();

    foreach ($billets as $billet)
    {
        $this->addBillet($billet)
    }

    return $this;
}

}