Symfony 2.1.4-knpPaginator在单击<th>元素时不会对数据进行排序

Question

我的控制器正在使用原理并调用knp分页包的分页方法，代码如下

$em = $this->get('doctrine.orm.entity_manager');

    $query = $em->createQueryBuilder()->add('select', 'a')
                ->add('from', 'Acme\TaskBundle\Entity\Product a')->getQuery()->getResult();
    $paginator = $this->get('knp_paginator');
    $pagination = $paginator->paginate(
                                        $query,
                                        $this->get('request')->query->get('page', 1)/*page number*/,
                                        5/*limit per page*/
                                      );
    return $this->render('AcmeTaskBundle:Default:index.html.twig', array(
    'pagination' => $pagination,
    ));

视图只是简单地表示分页数据

<table>
<tr>
  {# sorting of properties based on query components #}
<th>{{ pagination.sortable('Id', 'a.id')|raw }}</th>
<th>{{ pagination.sortable('Name', 'a.name')|raw }}</th>
<th>{{ pagination.sortable('Price', 'a.price')|raw }}</th>
<th>{{ pagination.sortable('Description', 'a.description')|raw }}</th>
</tr>

{# table body #}
{% for Product in pagination %}
 <tr {% if loop.index is odd %}class="color"{% endif %}>
<td>{{ Product.id }}</td>
<td>{{ Product.name }}</td>
<td>{{ Product.price }}</td>
<td>{{ Product.description }}</td>    
 </tr>
 {% endfor %}
 </table>
 {# display navigation #}
<div class="navigation">
   {{ pagination.render()|raw }}
 </div>

而路由是

index_entries:
   pattern: /index/
   defaults: { _controller: AcmeTaskBundle:Default:index }

我正在使用分页获取所有表数据，但无法在单击元素时对数据进行排序。分页器配置为

protected $defaultOptions = array(
    'pageParameterName' => 'page',
    'sortFieldParameterName' => 'sort',
    'sortDirectionParameterName' => 'direction',
    'distinct' => true
);

Answer 1

我已经得到了答案。首先，我从分页器视图获取post数据，如下所示

$postData = $request->query->all();

然后在查询字符串中传递数据，如

$dql= 'select a from AcmeTaskBundle:Product a order by ORDER BY $postData[sort]    $postData[direction]';