我尝试将一些带有 as 功能的代码移动到我的页面，添加到现在看起来像这样的某个 Controller :

<?php

namespace AppBundle\Controller;

use Sensio\Bundle\FrameworkExtraBundle\Configuration\Route;
use Symfony\Bundle\FrameworkBundle\Controller\Controller;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpFoundation\Response;
use Symfony\Component\HttpFoundation\JsonResponse;

use AppBundle\Entity\Movie;

class PaginationController extends Controller
{
    public function paginationAction(Request $request, $pageNumber)
    {
        $recordsPerPage = 5;
        $page = $pageNumber;

        // Positioning
        $start = ($page > 1) ? ($page * $recordsPerPage) - $recordsPerPage : 0;

        // Query
        //Records:
        //$movies = $this->getDoctrine()->getEntityManager()->getRepository('AppBundle:Movie')->FindAll();
        $repository = $this->getDoctrine()->getRepository('AppBundle:Movie');
        //Data to count:
        $qb = $repository->createQueryBuilder('m');
        $query = $qb
        ->getQuery();
        $totalAmountRows = count($query->getResult());

        //For display:
        $query = $qb
        ->setFirstResult($start)
        ->setMaxResults($recordsPerPage)
        ->getQuery();
        $movies = $query->getResult();

        //Pagination: 
        $filterVariables = "";
        //Always round up number (whole pages):
        $totalPages = ceil($totalAmountRows / $recordsPerPage);

        return array(
            'movies' => $movies,
            'filtervariables' => $filterVariables,
            'totalPages' => $totalPages,
            'totalAmountRows' => $totalAmountRows,
            'pageNumber' => $pageNumber
        );
    }
}

应该接收值的 Controller 如下所示:

<?php

namespace AppBundle\Controller;

use Sensio\Bundle\FrameworkExtraBundle\Configuration\Route;
use Symfony\Bundle\FrameworkBundle\Controller\Controller;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpFoundation\Response;
use Symfony\Component\HttpFoundation\JsonResponse;

use AppBundle\Entity\Movie;

class MovieDisplayController extends Controller
{

    public function showAction(Request $request, $pageNumber)
    {
        $this->forward('AppBundle:Pagination:pagination', array(
            'pageNumber' => $pageNumber
        ));

        return $this->render('movies/index.html.twig', array(
            'movies' => $movies,
            'filtervariables' => $filterVariables,
            'page' => $page,
            'totalPages' => $totalPages,
            'totalAmountRows' => $totalAmountRows,
            'pageNumber' => $pageNumber
        ));
    }
}

但是当我查看页面时，我看到:注意: undefined variable :电影。我应该如何更改我的代码，以便它知道我正在尝试将 $movies 变量从一个 Controller 传递给另一个 Controller ？

编辑:为了让我完全理解下面的答案，我想在我的问题中添加以下内容(感谢@Rvanlaak):

当我想在我的 MovieRepository 中处理分页时应该是什么样子？

最佳答案

转发一个请求也会得到一个完全独立的响应。也就是说，你的showAction可以直接返回$this->forward的返回响应对象。

您尝试做的不是转发，您可以在 MovieRepository 中处理分页，或者更好地使用像 KnpPaginatorBundle 这样的包对于只需要您传递 QueryBuilder、每页结果和事件页面的结果。

编辑附加问题:为了让您的存储库进行分页，您应该 create a custom repository class并添加一个根据 $resultsPerPage 和 $activePage 输入参数返回预期结果的函数:

// Oversimplified repo
class MovieRepository extends EntityRepository 
{
    public function findAllWithPagionation($resultsPerPage, $activePage) 
    {
        $builder = $this->createQueryBuilder('m');
        $totalRows = $builder->getQuery()->getSingleScalarResult();

        return array(
            'total' => $totalRows,
            'results' => $builder 
                ->setFirstResult($resultsPerPage * $activePage)
                ->setMaxResults($resultsPerPage)
                ->getQuery()
                ->getResult()
        );
    }
}

关于php - 不完全确定( Controller )转发在 Symfony 中是如何工作的，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/35936621/