/**
* Load this object from the provided document within the gridfs system.
* @param MongoGridFSFile $doc - the doc that represents a file.
* @return \MongoFile
*/
public static function loadFromMongoDoc(MongoGridFSFile $doc)
{
$name = $doc->file['name'];
$modificationTime = $doc->file['modification_time'];
$creationTime = $doc->file['creation_time'];
$parentFolder = MongoFolder::loadFromMongoId($doc->file['parent']);
$mongoFile = new MongoFile($name, $parentFolder, $creationTime, $modificationTime, $doc);
$mongoFile->mMongoId = $id;
return $mongoFile;
}
/**
* Load the root folder from which everything else is under.
* @return MongoFolder
*/
public static function loadRoot()
{
$gridfs = ConnectionHandler::getInstance()->getConnection();
$conditions = array();
$conditions[] = array("type" => "folder");
$conditions[] = array("parent" => array('$exists' => false));
$document = $gridfs->findOne(array('$and' => $conditions));
$rootFolder = MongoFolder::loadFromMongoDoc($document);
return $rootFolder;
}
/**
* Move this object to within the provided parent folder.
* @param FolderInterface $parent - the folder we wish to move this file/folder to within.
*
* @return $this - this modified item.
*/
public function setParentFolder(FolderInterface $parent)
{
$parentMongoFolder = MongoFolder::loadFromFolderInterface($parent);
$this->updateField("parent", $parentMongoFolder->getMongoId());
return $this;
}
/**
* Fetch an array of folders that are directly within this folder.
* @return MongoFolder[]
*/
public function getSubFolders()
{
$subfolders = array();
$gridFs = ConnectionHandler::getInstance()->getConnection();
$conditions = array();
$conditions[] = array('parent' => $this->mGridFsFile->file['_id']);
$conditions[] = array('type' => $this->mGridFsFile->file['folder']);
$query = array('$and' => $conditions);
$cursor = $gridFs->find($query);
while (($folder = $cursor->getNext()) != null) {
/* @var $folder MongoGridFsFile */
$subfolders[] = MongoFolder::loadFromMongoDoc($folder);
}
return $subfolders;
}