我在艺术家和约会表之间有很多关系。我想检索艺术家的类别，该艺术家的类别与艺术家类别表之间的关系是一对多的（一个类别可以有多个艺术家）。当我尝试从树枝视图访问它时，会收到以下消息：属性“ category”或方法“ category（）”，“ getcategory（）” /“ iscategory（）” /“ hascategory（）”之一“或” __call（）”已存在，并且在“ Doctrine \ ORM \ PersistentCollection”类中具有公共访问权限。
{% extends 'base.html.twig' %}
{% block body %}
<section id="container">
<div class="bandeau">
<div class="icone">
<div>
<img src="../img/icoLieuDetail.png" alt="lieu" />
<p>{{ appointment.place.title }}</p>
</div>
<div>
<img src="../img/icoDateDetail.png" alt="date" />
<p>{{ appointment.beginAt | localizeddate('none', 'none', null, null, 'EEE') }} {{ appointment.endAt | date('d')}} {{ appointment.beginAt | localizeddate('none', 'none', null, null, 'MMM')}}</p>
</div>
<div>
<img src="../img/icoCatDetail.png" alt="domaine artistique" />
<p>{{ appointment.artist.category.category }}</p>
</div>
</div>
<div class="btn-container">
<button class="button">Intéressé</button>
</div>
</div>
<article class="box">
<div class="element">
<img src="../img/evenement_1_p.jpg" alt="image évènement" width="600px" height="400px" />
</div>
<div class="article">
<h2>{{ appointment.title }}</h2>
<p>{{ appointment.description }}</p>
<div class="reseaux">
<img src="../img/icoWeb.png" alt="lien site web">
<img src="../img/icoFb.png" alt="lien page facebook">
<img src="../img/icoInsta.png" alt="lien compte instagram">
</div>
</div>
</article>
</section>
{% endblock %}
class Appointment
{
/**
* @ORM\Id()
* @ORM\GeneratedValue()
* @ORM\Column(type="integer")
*/
private $id;
/**
* @ORM\Column(type="string", length=100, nullable=true)
*/
private $title;
/**
* @ORM\Column(type="text", nullable=true)
*/
private $description;
/**
* @ORM\Column(type="datetime", nullable=true)
*/
private $begin_at;
/**
* @ORM\Column(type="datetime", nullable=true)
*/
private $end_at;
/**
* @ORM\Column(type="string", length=255, nullable=true)
*/
private $web;
/**
* @ORM\Column(type="string", length=255, nullable=true)
*/
private $facebook;
/**
* @ORM\Column(type="string", length=255, nullable=true)
*/
private $instagram;
/**
* @ORM\Column(type="integer", nullable=true)
*/
private $counter;
/**
* @ORM\ManyToOne(targetEntity="App\Entity\Place", inversedBy="appointments")
*/
private $place;
/**
* @ORM\ManyToMany(targetEntity="App\Entity\Artist", inversedBy="appointments")
*/
private $artist;
public function __construct()
{
$this->artist = new ArrayCollection();
}
public function getId(): ?int
{
return $this->id;
}
public function getTitle(): ?string
{
return $this->title;
}
public function setTitle(?string $title): self
{
$this->title = $title;
return $this;
}
public function getDescription(): ?string
{
return $this->description;
}
public function setDescription(?string $description): self
{
$this->description = $description;
return $this;
}
public function getBeginAt(): ?\DateTimeInterface
{
return $this->begin_at;
}
public function setBeginAt(?\DateTimeInterface $begin_at): self
{
$this->begin_at = $begin_at;
return $this;
}
public function getEndAt(): ?\DateTimeInterface
{
return $this->end_at;
}
public function setEndAt(?\DateTimeInterface $end_at): self
{
$this->end_at = $end_at;
return $this;
}
public function getWeb(): ?string
{
return $this->web;
}
public function setWeb(?string $web): self
{
$this->web = $web;
return $this;
}
public function getFacebook(): ?string
{
return $this->facebook;
}
public function setFacebook(?string $facebook): self
{
$this->facebook = $facebook;
return $this;
}
public function getInstagram(): ?string
{
return $this->instagram;
}
public function setInstagram(?string $instagram): self
{
$this->instagram = $instagram;
return $this;
}
public function getCounter(): ?int
{
return $this->counter;
}
public function setCounter(?int $counter): self
{
$this->counter = $counter;
return $this;
}
public function getPlace(): ?Place
{
return $this->place;
}
public function setPlace(?Place $place): self
{
$this->place = $place;
return $this;
}
/**
* @return Collection|Artist[]
*/
public function getArtist(): Collection
{
return $this->artist;
}
public function addArtist(Artist $artist): self
{
if (!$this->artist->contains($artist)) {
$this->artist[] = $artist;
}
return $this;
}
public function removeArtist(Artist $artist): self
{
if ($this->artist->contains($artist)) {
$this->artist->removeElement($artist);
}
return $this;
}
}
class Artist
{
/**
* @ORM\Id()
* @ORM\GeneratedValue()
* @ORM\Column(type="integer")
*/
private $id;
/**
* @ORM\Column(type="string", length=50, nullable=true)
*/
private $name;
/**
* @ORM\Column(type="text", nullable=true)
*/
private $description;
/**
* @ORM\Column(type="string", length=50, nullable=true)
*/
private $phone_nb;
/**
* @ORM\Column(type="string", length=255, nullable=true)
*/
private $web;
/**
* @ORM\Column(type="string", length=255, nullable=true)
*/
private $facebook;
/**
* @ORM\Column(type="string", length=255, nullable=true)
*/
private $instagram;
/**
* @ORM\OneToOne(targetEntity="App\Entity\User", inversedBy="artist", cascade={"persist", "remove"})
*/
private $user;
/**
* @ORM\ManyToOne(targetEntity="App\Entity\Category", inversedBy="artists")
*/
private $category;
/**
* @ORM\ManyToMany(targetEntity="App\Entity\Appointment", mappedBy="artist")
*/
private $appointments;
public function __construct()
{
$this->appointments = new ArrayCollection();
}
public function getId(): ?int
{
return $this->id;
}
public function getName(): ?string
{
return $this->name;
}
public function setName(?string $name): self
{
$this->name = $name;
return $this;
}
//---------------methode toString
public function __toString()
{
return $this->getName();
}
public function getDescription(): ?string
{
return $this->description;
}
public function setDescription(?string $description): self
{
$this->description = $description;
return $this;
}
public function getPhoneNb(): ?string
{
return $this->phone_nb;
}
public function setPhoneNb(?string $phone_nb): self
{
$this->phone_nb = $phone_nb;
return $this;
}
public function getWeb(): ?string
{
return $this->web;
}
public function setWeb(?string $web): self
{
$this->web = $web;
return $this;
}
public function getFacebook(): ?string
{
return $this->facebook;
}
public function setFacebook(?string $facebook): self
{
$this->facebook = $facebook;
return $this;
}
public function getInstagram(): ?string
{
return $this->instagram;
}
public function setInstagram(?string $instagram): self
{
$this->instagram = $instagram;
return $this;
}
public function getUser(): ?User
{
return $this->user;
}
public function setUser(?User $user): self
{
$this->user = $user;
return $this;
}
public function getCategory(): ?Category
{
return $this->category;
}
public function setCategory(?Category $category): self
{
$this->category = $category;
return $this;
}
/**
* @return Collection|Appointment[]
*/
public function getAppointments(): Collection
{
return $this->appointments;
}
public function addAppointment(Appointment $appointment): self
{
if (!$this->appointments->contains($appointment)) {
$this->appointments[] = $appointment;
$appointment->addArtist($this);
}
return $this;
}
public function removeAppointment(Appointment $appointment): self
{
if ($this->appointments->contains($appointment)) {
$this->appointments->removeElement($appointment);
$appointment->removeArtist($this);
}
return $this;
}
}