Fix article initialize method
The initialize was breaking when the following command was given Folder.find_or_create_by_parent_id_and_name("Downloads"), returning the error: undefined method first for nil class when calling "params.first".
The initialize was breaking when the following command was given Folder.find_or_create_by_parent_id_and_name("Downloads"), returning the error: undefined method first for nil class when calling "params.first".