Doctrine2 分页器 [英] Doctrine2 Paginator

问题描述

从 2.2 版开始，Doctrine 有 Paginator.文档中只有一个示例:

Starting with version 2.2 Doctrine has Paginator. There is only one example in the documentation:

<?php
use DoctrineORMToolsPaginationPaginator;

$dql = "SELECT p, c FROM BlogPost p JOIN p.comments c";
$query = $entityManager->createQuery($dql)
                       ->setFirstResult(0)
                       ->setMaxResults(100);

$paginator = new Paginator($query, $fetchJoin = true);

$c = count($paginator);
foreach ($paginator as $post) {
    echo $post->getHeadline() . "
";
}

这个类没有什么新东西，因为文档中描述的整个过程可以用 $query->getResult() 完成.

There is nothing new in this class since the whole process described in the documentation can be done with $query->getResult().

我知道有一些关于分页的包，但我不想为这些琐碎的问题安装第三方包.另一方面，我找不到任何关于学说 2 分页的信息.该类应该有一些有用的方法.我在哪里可以找到它们?如果没有，那么整个班级的意义何在?

I know there are some bundles about pagination but I don't want to install third party bundles for such trivial issues. On the other hand, I cannot find anything about pagination of doctrine2. There should be some useful methods of the class. Where can I find them? If there are not then what is the point of the whole class?

推荐答案

Doctrine 的分页器不支持 Symfony — 它是低级的且特定于 Doctrine.

Doctrine's paginator is not Symfony aware — it's low-level and Doctrine specific.

另一方面，如果您安装第 3 方捆绑包，您将获得分页Doctrine ORM & 适配器ODM、Propel、普通数组等.您还将获得 Symfony 集成和视图助手.至少我使用的 WhiteOctoberPagerfantaBundle 可以完成所有这些.

On the other hand, if you install a 3rd party bundle, you'll get pagination adapters for Doctrine ORM & ODM, Propel, plain arrays, etc. You'll also get Symfony integration and view helpers. At least WhiteOctoberPagerfantaBundle that I use does all these.

因此，除非您只使用 Doctrine，否则我建议您重新考虑您对 3rd 方捆绑包的立场.

So, unless you're going with Doctrine only, I suggest you reconsider your position about a 3rd party bundle.

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