我有一个呈现最新帖子的模板。如果我从他们那里打开一个帖子，它仍在显示。我要么需要从URL获取当前打开的帖子的ID，要么以某种方式在控制器或查询生成器中过滤帖子。我暂时不会提供任何代码，因为我不知道您需要什么帮助。如果需要，请询问其他代码。谢谢
zhoulang914 回答：Symfony显示最新帖子（当前已打开）
这取决于您如何获得最新帖子。有几种可能性。
- 您可以在树枝视图中进行过滤：
操作：
public function viewPost(Request $request,EntityManager $em): Response
{
$postId = $reqeust->get('id');
$post = $em->getRepository(Post::class)->find($postId);
$newestPosts = $em->getRepository(Post::class)->findAll();
return $this->render('Post/view.html.twig',[
'post' => $post,'newestPosts' => $newestPosts
]);
}
视图：
{% for newPost in newestPosts if newPost.id != post.id %}
<h2>{{ newPost.title}}</h2>
{% endfor %}
- 如果在存储库实体中使用查询生成器，则可以添加“ exclude”参数：
操作：
public function viewPost(Request $request,EntityManager $em): Response
{
$postId = $reqeust->get('id');
$post = $em->getRepository(Post::class)->find($postId);
$newestPosts = $em->getRepository(Post::class)->findNewPosts(7,$postId);
return $this->render('Post/view.html.twig','newestPosts' => $newestPosts
]);
}
存储库：
<?php
namespace App\Repository;
use App\Entity\Post;
use Doctrine\Bundle\DoctrineBundle\Repository\ServiceEntityRepository;
use Doctrine\ORM\Query\Expr;
use Symfony\Bridge\Doctrine\RegistryInterface;
/**
* ProductRepository
*
* This class was generated by the Doctrine ORM. Add your own custom
* repository methods below.
*/
class PostRepository extends ServiceEntityRepository
{
public function __construct(RegistryInterface $registry)
{
parent::__construct($registry,Product::class);
}
public function findNewPosts($days,$postId)
{
$date = new \DateTime();
$date->modify('-'.$days.' day');
$query = $this->createQueryBuilder('p');
return $query->where('p.id <> :requestPost')
->andWhere('p.datetime >= :requestDatetime')
->setParameter('requestProduct',$postId)
->setParameter('requestDatetime',$date);
getQuery()->getResult()
}
}