php - 如何在 Zend Framework2 上使用 PHP 通过 Doctrine 2 ODM 在 MongoDB 中执行查询？

Question

I've attached sample code here. The query returns the entire db's mapping instead of the data being queried for, or an error with the Abstract-Hydrator class.

Here's the code for the mapper:-

    <?php


    namespace HelpostApi\Document;
    use Doctrine\ODM\MongoDB\Mapping\Annotations as ODM;

    /** @ODM\Document(collection="posts") */

    class Post
    {

    /** @ODM\Id */
    private $id;

    /** @ODM\Field(type="string") */
    private $postTitle;
    /**
    * @param field_type $postTitle
    */
    public function setPostTitle($postTitle)
    {
    $this->postTitle = $postTitle;
    }
    /**
    * @param field_type $postTitle
    */
    public function getPostTitle()
    {
    return $this->postTitle;
    }
    }
    ?>

And here's the code for controller, incorporating the query function:-

    <?php 
    namespace HelpostApi\Controller;

    use Zend\Mvc\Controller\AbstractRestfulController;
    use HelpostApi\Document\Post;

    class PostController extends AbstractRestfulController {
    public function getList() 
    {
    $dm = $this->getServiceLocator()->get('doctrine.documentmanager.odm_default');
    print_r( $dm->createQueryBuilder('HelpostApi\Document\Post')
    ->hydrate(false)
    ->getQuery()
    ->getSingleResult()
    ->execute()
    );
    }

    ?>

Answer 1

如果您的查询很简单，您可能更愿意使用其中一种内置的 ODM 方法:

$this->dm->getRepository('HelpostApi\Document\Post')->find($id);

或

$criteria=array('key'=>'value');
$this->dm->getRepository('HelpostApi\Document\Post')->findOneBy($criteria);

每个将返回单个 HelpostApi\Document\Post 对象或 NULL。