[英]Doctrine ODM: Embedding multiple GridFS documents exception
I'm trying to embed a thumbnail image inside of it's main larger image in GridFS via Doctrine / Symfony 2.我正在尝试通过 Doctrine / Symfony 2 在 GridFS 中的主要较大图像中嵌入缩略图。
The main image document is as follows,主图文件如下,
<?php
namespace namespace\goes\here\Document;
use Doctrine\ODM\MongoDB\Mapping\Annotations as MongoDB;
/**
* @MongoDB\Document
*/
class FullSizeImage
{
/** @MongoDB\Id */
private $id;
/** @MongoDB\File */
private $file;
/** @MongoDB\String */
private $filename;
/** @MongoDB\String */
private $mimeType;
/** @MongoDB\Date */
private $uploadDate;
/** @MongoDB\Int */
private $userId;
/** @MongoDB\Int */
private $length;
/** @MongoDB\Int */
private $chunkSize;
/** @MongoDB\String */
private $md5;
/** @MongoDB\Collection */
private $tags = array();
/** @MongoDB\EmbedOne(targetDocument="Thumbnail") */
private $thumbnail;
public function getId()
{
return $this->id;
}
public function setId($id)
{
$this->id = $id;
}
public function getTags()
{
return $this->tags;
}
public function setTags($tags)
{
$this->tags = $tags;
}
public function getFile()
{
return $this->file;
}
public function setFile($file)
{
$this->file = $file;
}
public function getFilename()
{
return $this->filename;
}
public function setFilename($filename)
{
$this->filename = $filename;
}
public function getMimeType()
{
return $this->mimeType;
}
public function setMimeType($mimeType)
{
$this->mimeType = $mimeType;
}
public function getChunkSize()
{
return $this->chunkSize;
}
public function getLength()
{
return $this->length;
}
public function getMd5()
{
return $this->md5;
}
public function getUploadDate()
{
return $this->uploadDate;
}
public function getUserId()
{
return $this->userId;
}
public function setUserId($userId)
{
$this->userId = $userId;
}
public function getThumbnail()
{
return $this->thumbnail;
}
public function setThumbnail($thumbnail)
{
$this->thumbnail = $thumbnail;
}
}
and the thumbnail document, that lives under the same namespace, is as follows,和位于同一命名空间下的缩略图文档如下,
<?php
namespace namespace\goes\here\Document;
use Doctrine\ODM\MongoDB\Mapping\Annotations as MongoDB;
/** @MongoDB\EmbeddedDocument */
class Thumbnail
{
/** @MongoDB\Id */
private $id;
/** @MongoDB\File */
private $file;
/** @MongoDB\String */
private $filename;
/** @MongoDB\String */
private $mimeType;
/** @MongoDB\Date */
private $uploadDate;
/** @MongoDB\Int */
private $length;
/** @MongoDB\Int */
private $chunkSize;
/** @MongoDB\String */
private $md5;
public function getId()
{
return $this->id;
}
public function setId($id)
{
$this->id = $id;
}
public function getFile()
{
return $this->file;
}
public function setFile($file)
{
$this->file = $file;
}
public function getFilename()
{
return $this->filename;
}
public function setFilename($filename)
{
$this->filename = $filename;
}
public function getMimeType()
{
return $this->mimeType;
}
public function setMimeType($mimeType)
{
$this->mimeType = $mimeType;
}
public function getChunkSize()
{
return $this->chunkSize;
}
public function getLength()
{
return $this->length;
}
public function getMd5()
{
return $this->md5;
}
public function getUploadDate()
{
return $this->uploadDate;
}
}
When I try to persist / flush the FullSizeImage
,当我尝试持久化/刷新FullSizeImage
,
$thumbnail = new Thumbnail();
$thumbnail->setFile($thumbPath);
$thumbnail->setFilename($thumbName);
$thumbnail->setMimeType($thumbMimeType);
$thumbnail->setUserId($user->getId());
$fsi = new FullSizeImage();
$fsi->setFile($file->getRealPath());
$fsi->setTags(array('tag', 'tag', 'tag'));
$fsi->setFilename($file->getFilename());
$fsi->setMimeType($file->getMimeType());
$fsi->setUserId($user->getId());
$fsi->setThumbnail($thumbnail);
$dm->persist($fsi);
$dm->flush();
I encounter this exception,我遇到这个异常,
Could not store file: zero-length keys are not allowed, did you use $ with double quotes?无法存储文件:不允许使用零长度键,您是否将 $ 与双引号一起使用?
Am I missing something?我错过了什么吗? Or is there a better way to go about storing these images and their relationship in mongo?或者有没有更好的方法来将这些图像及其关系存储在 mongo 中?
Field, which maps GridFS have to be the top-most-level document.映射 GridFS 的字段必须是最顶层的文档。 It can be referenced by other documents, but it can't be embed by any other document.它可以被其他文档引用,但不能被任何其他文档嵌入。 It's because GridFS implementation in Mongo ODM.这是因为 GridFS 在 Mongo ODM 中实现。
I've had a similiar issue some time ago.前段时间我也遇到过类似的问题。 I've ended up with solution described above.我最终得到了上述解决方案。
More details: https://github.com/doctrine/mongodb-odm/issues/911更多详情: https : //github.com/doctrine/mongodb-odm/issues/911
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