我收到的“变量“任务”不存在。”在树枝循环中，
我尝试使用“如果已定义”循环，但我的任务没有出现在屏幕上。
我到处都检查过，不知道从哪里来。
所以这就是我的模板：
{% extends 'base.html.twig' %}
{% block title 'Agence lorem ipsum' %}
{% block body %}
<div class="jumbotron text-center">
<h1>Trouvez une mission qui vous correspond</h1>
<p>My super est encore en developpement , vous pouvez apporter vos idées via le formulaire de contact</p>
</div>
<div class="container">
<h2>Les dernieres missions</h2>
<div class="row flex">
{% for Mission in Missions %}
<div class="col-3">
<div class="card">
<div class="card-body">
<h5 class="card-title">
<a href="{{ path('lesmissions/show.html.twig', {id: mission.id, slug: mission.slug}) }}">{{ mission.titre }}</a>
</h5>
<p class="card-text">{{ mission.adresse }} ({{ mission.createdat|date('Y-m-d') }})</p>
<div class="text-primary" style="font-weight: bold;font-size: 2rem;">{{ mission.gain }} €</div>
</div>
</div>
</div>
{% endfor %}
</div>
</div>
{% endblock %}
那是我的任务实体
<?php
namespace App\Entity;
use App\Repository\MissionRepository;
use Doctrine\ORM\Mapping as ORM;
/**
* @ORM\Entity(repositoryClass=MissionRepository::class)
*/
class Mission
{
/**
* @ORM\Id()
* @ORM\GeneratedValue()
* @ORM\Column(type="integer")
*/
private $id;
/**
* @ORM\Column(type="string", length=90)
*/
private $titre;
/**
* @ORM\Column(type="text")
*/
private $description;
/**
* @ORM\Column(type="date")
*/
private $date_debut;
/**
* @ORM\Column(type="date", nullable=true)
*/
private $date_fin;
/**
* @ORM\Column(type="integer")
*/
private $gain;
/**
* @ORM\Column(type="boolean" , options={"default" : false})
*/
private $Urgence;
/**
* @ORM\Column(type="boolean", nullable=true , options={"default" : false})
*/
private $Accepted;
/**
* @ORM\Column(type="string", length=255, nullable=true)
*/
private $adresse;
/**
* @ORM\Column(type="date", nullable=true)
*/
private $created_at;
public function __construct()
{
$this->created_at = new \Date();
}
public function getId(): ?int
{
return $this->id;
}
public function getTitre(): ?string
{
return $this->titre;
}
public function setTitre(string $titre): self
{
$this->titre = $titre;
return $this;
}
public function getSlug(): string
{
return (new Slugify())->slugify($this->titre);
}
public function getDescription(): ?string
{
return $this->description;
}
public function setDescription(string $description): self
{
$this->description = $description;
return $this;
}
public function getDateDebut(): ?\DateTimeInterface
{
return $this->date_debut;
}
public function setDateDebut(\DateTimeInterface $date_debut): self
{
$this->date_debut = $date_debut;
return $this;
}
public function getDateFin(): ?\DateTimeInterface
{
return $this->date_fin;
}
public function setDateFin(?\DateTimeInterface $date_fin): self
{
$this->date_fin = $date_fin;
return $this;
}
public function getGain(): ?int
{
return $this->gain;
}
public function setGain(int $gain): self
{
$this->gain = $gain;
return $this;
}
public function getUrgence(): ?bool
{
return $this->Urgence;
}
public function setUrgence(bool $Urgence): self
{
$this->Urgence = $Urgence;
return $this;
}
public function getAccepted(): ?bool
{
return $this->Accepted;
}
public function setAccepted(?bool $Accepted): self
{
$this->Accepted = $Accepted;
return $this;
}
public function getAdresse(): ?string
{
return $this->adresse;
}
public function setAdresse(?string $adresse): self
{
$this->adresse = $adresse;
return $this;
}
public function getCreatedAt(): ?\DateTimeInterface
{
return $this->created_at;
}
public function setCreatedAt(?\DateTimeInterface $created_at): self
{
$this->created_at = $created_at;
return $this;
}
}
那是我的存储库
<?php
namespace App\Repository;
use App\Entity\Mission;
use Doctrine\Bundle\DoctrineBundle\Repository\ServiceEntityRepository;
use Doctrine\Persistence\ManagerRegistry;
use Doctrine\ORM\QueryBuilder;
/**
* @method Mission|null find($id, $lockMode = null, $lockVersion = null)
* @method Mission|null findOneBy(array $criteria, array $orderBy = null)
* @method Mission[] findAll()
* @method Mission[] findBy(array $criteria, array $orderBy = null, $limit = null, $offset = null)
*/
class MissionRepository extends ServiceEntityRepository
{
public function __construct(ManagerRegistry $registry)
{
parent::__construct($registry, Mission::class);
}
/**
* @return Mission[]
*/
public function findAllVisible(): array
{
return $this->findVisibleQuery()
->getQuery()
->getResult();
}
/**
* @return Mission[]
*/
public function findLatest(): array
{
return $this->findVisibleQuery()
->setMaxResults(30)
->getQuery()
->getResult();
}
private function findVisibleQuery(): QueryBuilder
{
return $this->createQueryBuilder('m')
->where('m.Accepted = false');
}
// /**
// * @return Mission[] Returns an array of Mission objects
// */
/*
public function findByExampleField($value)
{
return $this->createQueryBuilder('m')
->andWhere('m.exampleField = :val')
->setParameter('val', $value)
->orderBy('m.id', 'ASC')
->setMaxResults(10)
->getQuery()
->getResult()
;
}
*/
/*
public function findOneBySomeField($value): ?Mission
{
return $this->createQueryBuilder('m')
->andWhere('m.exampleField = :val')
->setParameter('val', $value)
->getQuery()
->getOneOrNullResult()
;
}
*/
}
最后确定我的任务负责人
<?php
namespace App\Controller;
use App\Entity\Mission;
use App\Repository\MissionRepository;
use Doctrine\ORM\EntityManagerInterface;
use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
use Symfony\Component\HttpFoundation\Response;
use Symfony\Component\Routing\Annotation\Route;
class MissionController extends AbstractController {
/**
* @var MissionRepository
*/
private $repository;
/**
* @var EntityManagerInterface
*/
private $em;
public function __construct(MissionRepository $repository, EntityManagerInterface $em)
{
$this->repository = $repository;
$this->em = $em;
}
/**
* @return Response
* @throws \Twig\Error\LoaderError
* @throws \Twig\Error\RuntimeError
* @throws \Twig\Error\SyntaxError
* @Route ("/missions" , name="Missions")
*/
public function index():Response
{
return $this->render('lesmissions/index.html.twig');
}
/**
* @Route("/missions/{slug}-{id}", name="mission.show", requirements={"slug": "[a-z0-9\-]*"})
* @param Mission $mission
* @return Response
*/
public function show(Mission $mission, string $slug): Response
{
if ($mission->getSlug() !== $slug) {
return $this->redirectToRoute('mission.show', [
'id' => $mission->getId(),
'slug' => $mission->getSlug()
], 301);
}
return $this->render('lesmissions/show.html.twig', [
'mission' => $mission,
'current_menu' => 'missions'
]);
}
}
?>
（这是我页面的控制器）
<?php
namespace App\Controller;
use App\Repository\MissionRepository;
use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
use Symfony\Component\HttpFoundation\Response;
use Symfony\Component\Routing\Annotation\Route;
class LesmissionsController extends AbstractController
{
/**
* @Route("/lesmissions", name="lesmissions")
* @param MissionRepository $repository
* @return Response
*/
public function index(MissionRepository $repository): Response
{
$missions = $repository->findLatest();
return $this->render('lesmissions/index.html.twig', [
'missions' => $missions
]);
}
}
预先感谢：）
在您的视图模板中：替换以下行：
{% for Mission in Missions %}
with：
{% for mission in missions %}