Zend Framework 2 Doctrine 2分页结果

Question

我已经安装了带有分页的Doctrine 2和ZF2，并尝试将搜索功能应用于该方法。

相册列表可通过常规途径http://myapp/album

我当前的代码似乎是使用主义的createQueryBuilder()建立可用的查询

当我没有给标题/艺术家提供任何参数时，则$qb->getDql();的结果$qb->getDql(); 是SELECT a FROM Album\\Entity\\Album a ，它不返回错误并且分页结果为fine 。

我的方法

public function indexAction()
{
  $view =  new ViewModel();

  $repository = $this->getEntityManager()->getRepository('Album\Entity\Album');
  $qb = $repository->createQueryBuilder('album');
  $qb->add('select', 'a')
     ->add('from', 'Album\Entity\Album a');
  if ($this->params()->fromQuery('title')) {
    $qb->add('where','title like :title');
    $qb->setParameter(':title', '%' . $this->params()->fromQuery('title') . '%');
  }
  if ($this->params()->fromQuery('artist')) {
    $qb->add('where','artist like :artist');
    $qb->setParameter(':artist', '%' . $this->params()->fromQuery('artist') . '%');
  }
  $q = $qb->getDql();
  $paginator = new Paginator(new DoctrineAdapter(new ORMPaginator($this->getEntityManager()->createQuery($q))));
  $paginator->setDefaultItemCountPerPage(10);

  $page = (int)$this->params()->fromQuery('page');
  if ($page) $paginator->setCurrentPageNumber($page);
  $view->setVariable('paginator', $paginator);

  return $view;
}

但是，当我通过URL http://myapp/album?title=In%20My%20Dreams传递查询时， $qb->getDql();的结果$qb->getDql(); SELECT a FROM Album\\Entity\\Album a WHERE title like :title ，它返回下面的错误。

Zend\Paginator\Exception\RuntimeException
File:
/Users/luke/Sites/hotelio/vendor/zendframework/zendframework/library/Zend/Paginator/Paginator.php:637
Message:
Error producing an iterator
Stack trace:
#0 /myapp/module/Album/view/album/album/index.phtml(20): Zend\Paginator\Paginator->getIterator()
#1 /myapp/vendor/zendframework/zendframework/library/Zend/View/Renderer/PhpRenderer.php(507): include('/myapp...')
#2 /myapp/vendor/zendframework/zendframework/library/Zend/View/View.php(205): Zend\View\Renderer\PhpRenderer->render(Object(Zend\View\Model\ViewModel))
#3 /myapp/vendor/zendframework/zendframework/library/Zend/View/View.php(233): Zend\View\View->render(Object(Zend\View\Model\ViewModel))
#4 /myapp/vendor/zendframework/zendframework/library/Zend/View/View.php(198): Zend\View\View->renderChildren(Object(Zend\View\Model\ViewModel))
#5 /myapp/vendor/zendframework/zendframework/library/Zend/Mvc/View/Http/DefaultRenderingStrategy.php(102): Zend\View\View->render(Object(Zend\View\Model\ViewModel))
#6 [internal function]: Zend\Mvc\View\Http\DefaultRenderingStrategy->render(Object(Zend\Mvc\MvcEvent))
#7 /myapp/vendor/zendframework/zendframework/library/Zend/EventManager/EventManager.php(468): call_user_func(Array, Object(Zend\Mvc\MvcEvent))
#8 /myapp/vendor/zendframework/zendframework/library/Zend/EventManager/EventManager.php(207): Zend\EventManager\EventManager->triggerListeners('render', Object(Zend\Mvc\MvcEvent), Array)
#9 /myapp/vendor/zendframework/zendframework/library/Zend/Mvc/Application.php(347): Zend\EventManager\EventManager->trigger('render', Object(Zend\Mvc\MvcEvent))
#10 /myapp/vendor/zendframework/zendframework/library/Zend/Mvc/Application.php(322): Zend\Mvc\Application->completeRequest(Object(Zend\Mvc\MvcEvent))
#11 /myapp/public/index.php(12): Zend\Mvc\Application->run()
#12 {main}

我知道错误是视图正在访问变量的地方，但是当分页器处理修改后的查询时，它似乎在错误发生之前就到达了视图的尽头。 我不太确定这是怎么回事。

为免生疑问，原来的方法也可以正常运行。

public function indexAction()
{
  $view =  new ViewModel();

  $repository = $this->getEntityManager()->getRepository('Album\Entity\Album');

  $paginator = new Paginator(new DoctrineAdapter(new ORMPaginator($this->getEntityManager()->createQuery($repository->createQueryBuilder('album')))));
  $paginator->setDefaultItemCountPerPage(10);

  $page = (int)$this->params()->fromQuery('page');
  if ($page) $paginator->setCurrentPageNumber($page);
  $view->setVariable('paginator', $paginator);

  return $view;
}

Answer 1

我遇到了同样的错误。 就我而言，问题是未在php.ini中设置“ date.timezone”。 这导致以下代码实际捕获\\ DateTime（）异常。

Zend的\\分页程序\\分页程序

    public function getIterator()
    {
        try {
            return $this->getCurrentItems();
        } catch (\Exception $e) {
            throw new Exception\RuntimeException('Error producing an iterator', null, $e);
        }
    }

Answer 2

除了不良的DQL之外，当data / DoctrineORMModule / Proxy没有设置正确的写权限时，也会发生“产生迭代器错误”：

chmod 755 data/DoctrineORMModule/Proxy