/**
* Разворачиваем данные назад из Grid-а в исходный массив
*
* @param array $record данные содержащие то, что нужно развернуть
* @return готовый массив с развёрнутыми данными
*/
protected function _unserialize($record)
{
foreach ($this->_settings['fields'] as $field) {
$paths = explode('.', $field);
$data = $record;
foreach ($paths as $path) {
if (!empty($data[$path])) {
$data = $data[$path];
} else {
$data = null;
}
}
if (!empty($data) && $data instanceof MongoId) {
// сохраняем содержимое поля в gridfs, а в значение поля записываем id в grid-е
$value = @unserialize($this->_Grid->get($data)->getBytes());
if (!empty($value)) {
if (count($paths) == 1) {
$record[$paths[0]] = $value;
} elseif (count($paths) == 2) {
$record[$paths[0]][$paths[1]] = $value;
} elseif (count($paths) == 3) {
$record[$paths[0]][$paths[1]][$paths[2]] = $value;
} elseif (count($paths) == 4) {
$record[$paths[0]][$paths[1]][$paths[2]][$paths[3]] = $value;
}
}
}
}
return $record;
}
/**
* get.
*/
public function get($id)
{
$this->time->start();
$return = parent::get($id);
$time = $this->time->stop();
$this->log(array('type' => 'get', 'id' => $id, 'time' => $time));
return $return;
}
/**
* Wrapper method for MongoGridFS::storeFile().
*
* This method returns the GridFSFile object, unlike the base MongoGridFS
* method, which returns the "_id" field of the saved document. The "_id"
* will be set on the $document parameter, which is passed by reference.
*
* @see http://php.net/manual/en/mongogridfs.storefile.php
* @param string|GridFSFile $file String filename or a GridFSFile object
* @param array $document
* @param array $options
* @return GridFSFile
*/
public function storeFile($file, array &$document, array $options = [])
{
if (!$file instanceof GridFSFile) {
$file = new GridFSFile($file);
}
$options = isset($options['safe']) ? $this->convertWriteConcern($options) : $options;
if ($file->hasUnpersistedFile()) {
$id = $this->mongoCollection->storeFile($file->getFilename(), $document, $options);
} else {
$id = $this->mongoCollection->storeBytes($file->getBytes(), $document, $options);
}
$document = array_merge(['_id' => $id], $document);
$gridFsFile = $this->mongoCollection->get($id);
// TODO: Consider throwing exception if file cannot be fetched
$file->setMongoGridFSFile($this->mongoCollection->get($id));
return $file;
}
/**
* 根据ID获取文件内容，二进制
*
* @param string $id
* @return bytes
*/
public function getFileFromGridFS($id)
{
if (!$id instanceof \MongoId) {
$id = new \MongoId($id);
}
$gridfsFile = $this->_fs->get($id);
return $gridfsFile->getBytes();
}
