php Symfony教义分页

ztyzrc3y  于 2023-09-29  发布在  PHP
关注(0)|答案(3)|浏览(126)

我有实体用户,例如计数90355,我需要得到100个用户,并与此用户做一些逻辑。然后接下来100次使用,这是我有,但当我发现我所有的服务器都没有如何解决这个问题?

public function find()
{
    $developers = $this->em->getRepository('ArtelProfileBundle:Users')->findBy(array(), array('id' => 'desc'));
    foreach ($developers as $developer) {
       $this->getApiFullContact($developer);
    }
    return true;
}

我认为像这样的函数,但setFirstResult和setMaxResults动态变量?

public function getPaginationUser()
{
    $qb = $this->getEntityManager()->createQueryBuilder('d');
    $qb
        ->select('d')
        ->from('ArtelProfileBundle:Users', 'd')
        ->setFirstResult(0)
        ->setMaxResults(100)
        ->orderBy('d.id', 'DESC')
        ->getQuery()
        ->getResult()
    ;
    $query = $qb->getQuery();
    $results = $query->getResult();

    return $results;
}

如何进行此迭代?

cfh9epnr

cfh9epnr1#

我把这个例子从我发现的几件事放在一起,它似乎起作用了。这是非常基本的,但这是一个开始。
所以答案:Doctrine2 Paginator getting total results
Symfony文档:使用Doctrine的Query Builder查询对象

/**
 * @Route("/users/{page}", name="user_list", requirements={"page"="\d+"})
 */
public function getUsersByPage($page = 1)
{
    // get entity manager
    $em = $this->getDoctrine()->getManager();
    
    // get the user repository
    $developers = $em->getRepository(Users::class);
    
    // build the query for the doctrine paginator
    $query = $developers->createQueryBuilder('u')
                        ->orderBy('u.id', 'DESC')
                        ->getQuery();

    //set page size
    $pageSize = '100';
    
    // load doctrine Paginator
    $paginator = new \Doctrine\ORM\Tools\Pagination\Paginator($query);

    // you can get total items
    $totalItems = count($paginator);

    // get total pages
    $pagesCount = ceil($totalItems / $pageSize);

    // now get one page's items:
    $paginator
        ->getQuery()
        ->setFirstResult($pageSize * ($page-1)) // set the offset
        ->setMaxResults($pageSize); // set the limit

    foreach ($paginator as $pageItem) {
        // do stuff with results...
        dump($pageItem);
    }

    // return stuff..
    return [$userList, $totalItems, $pageCount];
}
3okqufwl

3okqufwl2#

完整的 * 工作 * 示例在这里-> Using limit and offset in doctrine query builder for manual pagination。我只是给你一些你需要先理解的密码。
这就是它的工作原理,对我来说,这是最好的做法!也许不是对其他人!
1.请求转到控制器
1.控制器调用服务
1.使用Trait服务标准化请求参数
1.服务从存储库中提取数据
1.存储库将结果返回给服务
1.服务将结果传递给工厂
1.工厂创建结果模型
1.工厂将结果模型返回给服务
1.服务将结果模型返回给控制器

REPO

namespace Application\BackendBundle\Repository;

use Doctrine\ORM\EntityRepository;
use Doctrine\ORM\Query;

class StudentRepository extends EntityRepository
{
    /**
     * @param string|null $name
     * @param int         $limit
     * @param int         $offset
     *
     * @returns array
     */
    public function findPaginatedByName($name, $limit, $offset)
    {
        $qb = $this->createQueryBuilder('s');

        if ($name) {
            $qb->where('s.name = :name')->setParameter('name', $name);
        }

        $qb->setMaxResults($limit)->setFirstResult($offset);

        return $qb->getQuery()->getResult(Query::HYDRATE_SIMPLEOBJECT);
    }

    /**
     * @param string|null $name
     *
     * @return int
     */
    public function findPaginatedByNameCount($name)
    {
        $qb = $this->createQueryBuilder('s')->select('COUNT(s)');

        if ($name) {
            $qb->where('s.name = :name')->setParameter('name', $name);
        }

        return $qb->getQuery()->getResult(Query::HYDRATE_SINGLE_SCALAR);
    }
}

寻呼机属性

namespace Application\BackendBundle\Util;

trait PagerTrait
{
    public function getPage($page = 1)
    {
        if ($page < 1) {
            $page = 1;
        }

        return floor($page);
    }

    public function getLimit($limit = 20)
    {
        if ($limit < 1 || $limit > 20) {
            $limit = 20;
        }

        return floor($limit);
    }

    public function getOffset($page, $limit)
    {
        $offset = 0;
        if ($page != 0 && $page != 1) {
            $offset = ($page - 1) * $limit;
        }

        return $offset;
    }
}

售后服务

namespace Application\BackendBundle\Service;

use Application\BackendBundle\Factory\StudentFactoryInterface;
use Application\BackendBundle\Model\Student\Result;
use Application\BackendBundle\Repository\StudentRepository;
use Application\BackendBundle\Util\PagerTrait;

class StudentService implements StudentServiceInterface
{
    use PagerTrait;

    private $studentRepository;
    private $studentFactory;

    public function __construct(
        StudentRepository $studentRepository,
        StudentFactoryInterface $studentFactory
    ) {
        $this->studentRepository = $studentRepository;
        $this->studentFactory = $studentFactory;
    }

    /**
     * @param string $name
     * @param int    $page
     * @param int    $limit
     *
     * @return Result
     */
    public function get($name, $page, $limit)
    {
        $page = $this->getPage($page);
        $limit = $this->getLimit($limit);
        $offset = $this->getOffset($page, $limit);
        $total = 0;

        $result = $this->studentRepository->findPaginatedByName($name, $limit, $offset);
        if ($result) {
            $total = $this->studentRepository->findPaginatedByNameCount($name);
        }

        return $this->studentFactory->createStudentResult($result, $name, $page, $limit, $total);
    }
}
eni9jsuy

eni9jsuy3#

如何在symfony上分页

/**
 * @Route("", name="admin_number_pool", methods={"GET"})
 */
public function index(NumberPoolRepository $repo, NumberPoolCategoryRepository $categories, Request $request): Response
{
    $page = $request->query->get('page', 1);
    $limit = 10;
    $pagesCount = ceil(count($repo->findAll()) / $limit);
    $pages = range(1, $pagesCount);
    $pools = $repo->findBy([], [], $limit, ($limit * ($page - 1)));

    return $this->render('admin/number-pool/index.html.twig', [
        'numberPools' => $pools,
        'categories' => $categories->findAll(),
        'pages' => $pages,
        'page' => $page,
    ]);
}

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