pub fn parse_folders(
folder: Option<&str>,
folders: Option<&str>,
) -> AppResult<(Option<String>, HashMap<String, String>)>Expand description
Parses the folder fields of an upload: folder (one folder for every
file of the request) and folders (a JSON object {"file name": "folder"} for each file, e.g. from the desktop folder import; it wins
over folder). Returns the default folder and the folders by lower-case
stored name.