我正在使用KnpPaginatorBundle,我在Repository中使用QueryBuilder来选择数据。我不得不在变量 $ sort 和 $ direction 中添加参数排序和方向,并将它们传递给查询能够做到和 orderBy 。
此代码有效,但我想向您展示并表达您的意见,如果使用KnpPaginatorBundle这是一个很好的方法,或者knpPaginatorBundle提供了另一种更好的方法。
我可以直接将这些参数传递给不在queryBuilder中的knp_paginator吗?
Action
public function listAction($page, Request $request)
{
$em = $this->getDoctrine()->getManager();
$paginator = $this->get('knp_paginator');
if($request->query->get('sort') and $request->query->get('direction')) {
$sort = $request->query->get('sort') ;
$direction = $request->query->get('direction');
}
else{
$sort = 'id'; // set default sort
$direction = 'asc'; // set default direction
}
// pass those two variables to query
$listTravels = $em->getRepository('ProjectTravelBundle:Travel')->getListTravelsFrontend($sort, $direction);
$pagination = $paginator->paginate(
$listTravels,
$this->get('request')->query->get('page', $page)/*page number*/,
10/*limit per page*/
);
return $this->render('ProjectFrontendBundle:Frontend:list.html.twig',array(
'pagination' => $pagination
));
}
TravelRepository:
public function getListTravelsFrontend($sort, $direction) // parameters $sort, $direction
{
$qb = $this->createQueryBuilder('t')
->leftJoin('t.image', 'i')
->addSelect('i')
->leftJoin('t.agence', 'a')
->addSelect('a')
->Where('t.enabled = 1')
->orderBy('t.'.$sort, $direction); // orderBy with those parameters
return $qb->getQuery()->getResult();
}
答案 0 :(得分:1)
@ phpisuber01是对的,他的回答有助于我理解。不幸的是,官方的KnpPaginator网站没有给出QueryBuilder的例子,但在https://github.com/KnpLabs/KnpPaginatorBundle中提到/ *查询NOT result * /。
以下是QueryBuilder的示例代码:
存储库中的第一个:
/*
* GiftDataRepository.php (in Repository/... directory)
* return all records in table GiftData.
*/
public function getLatestRecords()
{
$qb = $this->createQueryBuilder('q')->select('q');
// getQuery() returns query NOT result.
return $qb->getQuery();
}
控制器中的第二名:
/*
* TabulaRepository.php (in Controller/... directory)
* return pagination object within template.
*/
public function giftsDataShowAction(Request $request, $format)
{
$em = $this->getDoctrine()->getManager();
$giftsdataquery = $em->getRepository('AppBundle:GiftData')->getLatestRecords();
$paginator = $this->get('knp_paginator');
/* page number 1, limit per page 5 */
$pagination = $paginator->paginate($giftsdataquery, $request->query->getInt('page', 1), 5);
// parameters to template
return $this->render('data/data_gifts.html.twig', array('pagination' => $pagination));
}
观点中的第三个:
<div class="count">Total of: {{ pagination.getTotalItemCount }}</div>
<table class="table table-responsive table-striped">
<thead>
<tr>
{# sorting of properties based on query components #}
<th class="hidden-xs">{{ knp_pagination_sortable(pagination, 'Id', 'q.id') }}</th>
<th {% if pagination.isSorted('q.circumstances') %} class="sorted"{% endif %}>{{ knp_pagination_sortable(pagination, 'Circumstances', 'q.circumstances') }}</th>
<th class="hidden-xs">{{ knp_pagination_sortable(pagination, 'Date Of Report', 'q.dateOfReport') }}</th>
</tr>
</thead>
<tbody>
{% for row in pagination %}
<tr {% if loop.index is odd %}class="color"{% endif %}>
<td id="col" class="hidden-xs">{{ row.id }}</td>
<td id="col">{{ row.circumstances }}</td>
<td id="col" class="hidden-xs">{{ row.dateOfReport }}</td>
</tr>
{% endfor %}
</tbody>
</table>
就是这样。
答案 1 :(得分:0)
knp_paginator,它自己处理来自url的sort和direction关键字,你不必传递它们。 见doc - https://github.com/KnpLabs/KnpPaginatorBundle
$ listTravels,它将返回数据库中的所有结果 - 如果您有太多记录,该怎么办。
$pagination = $paginator->paginate()
仅根据您的限制获取有限的结果。
您可以在将$paginator = $this->get('knp_paginator');
作为参数或任何其他方法传递后直接在存储库类中使用$this->container
并可以使用
$paginator = $this->container->get('knp_paginator');