我有两个集合，categories并且jobs，jobs 集合在内部被引用categories。
现在我有CategoryRepository一个名为的方法getWithActiveJobs()，该方法返回所有具有引用作业的类别，这些作业仅未过期和激活。
问题是当我运行这个方法时，什么都没有返回。我是 MongoDB 的新手，所以请告诉我如何查询jobsinside CategoryRepository？
这是我的集合（不包括 setter 和 getter 以及其他方法）：
Category.php：
namespace Ibw\JobeetBundle\Document;
use Ibw\JobeetBundle\Utils\Jobeet;
use Doctrine\ODM\MongoDB\Mapping\Annotations as MongoDB;
/**
* @MongoDB\Document(collection="categories", repositoryClass="Ibw\JobeetBundle\Repository\CategoryRepository")
*/
class Category
{
/**
* @MongoDB\Id(strategy="AUTO")
*/
protected $id;
/**
* @MongoDB\String
*/
protected $name;
/**
* @MongoDB\ReferenceMany(targetDocument="Job")
*/
protected $jobs = array();
/**
* @MongoDB\ReferenceMany(targetDocument="Affiliate")
*/
protected $affiliates = array();
/**
* @MongoDB\String
*/
protected $slug;
}
Job.php：
namespace Ibw\JobeetBundle\Document;
use Ibw\JobeetBundle\Utils\Jobeet;
use Symfony\Component\Validator\Constraints as Assert;
use Doctrine\ODM\MongoDB\Mapping\Annotations as MongoDB;
/**
* @MongoDB\Document(collection="jobs", repositoryClass="Ibw\JobeetBundle\Repository\JobRepository")
* @Assert\GroupSequence({"Form", "Job"})
*/
class Job
{
/**
* @MongoDB\Id(strategy="AUTO")
*/
protected $id;
/**
* @MongoDB\String
* @Assert\NotBlank(groups={"Form"})
* @Assert\Choice(callback="getTypeValues", groups={"Form"})
*/
protected $type;
/**
* @MongoDB\String
* @Assert\NotBlank(groups={"Form"})
*/
protected $company;
/**
* @MongoDB\String
*/
protected $logo;
/**
* @Assert\Image(groups={"Form"})
*/
protected $file;
/**
* @MongoDB\String
* @Assert\Url(groups={"Form"})
*/
protected $url;
/**
* @MongoDB\String
* @Assert\NotBlank(groups={"Form"})
*/
protected $position;
/**
* @MongoDB\String
* @Assert\NotBlank(groups={"Form"})
*/
protected $location;
/**
* @MongoDB\String
* @Assert\NotBlank(groups={"Form"})
*/
protected $description;
/**
* @MongoDB\String
* @Assert\NotBlank(groups={"Form"})
*/
protected $how_to_apply;
/**
* @MongoDB\String
* @Assert\NotBlank()
*/
protected $token;
/**
* @MongoDB\Boolean
*/
protected $is_public;
/**
* @MongoDB\Boolean
*/
protected $is_activated;
/**
* @MongoDB\String
* @Assert\NotBlank(groups={"Form"})
* @Assert\Email(groups={"Form"})
*/
protected $email;
/**
* @MongoDB\Date
*/
protected $expires_at;
/**
* @MongoDB\Date
*/
protected $created_at;
/**
* @MongoDB\Date
*/
protected $updated_at;
/**
* @MongoDB\ReferenceOne(targetDocument="Category", cascade={"persist"})
* @Assert\NotBlank(groups={"Form"})
*/
protected $category;
}
这是CategoryRepository.php方法：
public function getWithActiveJobs($limit = null)
{
$qb = $this->createQueryBuilder()
->field('jobs')->prime(true)
->field('jobs.expires_at')->gt(date('Y-m-d H:i:s', time()))
->field('jobs.is_activated')->equals(true)
->sort('jobs.expires_at', 'DESC');
if($limit)
{
$qb->limit($limit);
}
return $qb->getQuery()->execute();
}
这是 MongoDBcategories集合：
> db.categories.find().pretty()
{
"_id" : ObjectId("527b884610fedf400d8b4589"),
"name" : "Design",
"slug" : "design"
}
{
"_id" : ObjectId("527b884610fedf400d8b458c"),
"name" : "Administrator",
"slug" : "administrator"
}
{
"_id" : ObjectId("527b884610fedf400d8b458a"),
"jobs" : [
DBRef("jobs", ObjectId("527b884610fedf400d8b4587"))
],
"name" : "Programming",
"slug" : "programming"
}
{
"_id" : ObjectId("527b884610fedf400d8b458b"),
"jobs" : [
DBRef("jobs", ObjectId("527b884610fedf400d8b4588"))
],
"name" : "Manager",
"slug" : "manager"
}