/**
* @param \MongoGridFSCursor $cursor Mongo cursor instance to fetch data from.
* @param boolean $all whether to fetch all rows or only first one.
* @param string|callable $indexBy value to index by.
* @return array|boolean result.
* @see Query::fetchRows()
*/
protected function fetchRowsInternal($cursor, $all, $indexBy)
{
$result = [];
if ($all) {
foreach ($cursor as $file) {
$row = $file->file;
$row['file'] = $file;
if ($indexBy !== null) {
if (is_string($indexBy)) {
$key = $row[$indexBy];
} else {
$key = call_user_func($indexBy, $row);
}
$result[$key] = $row;
} else {
$result[] = $row;
}
}
} else {
if ($cursor->hasNext()) {
$file = $cursor->getNext();
$result = $file->file;
$result['file'] = $file;
} else {
$result = false;
}
}
return $result;
}
public function hasNext()
{
$this->logQuery();
return parent::hasNext();
}
