def add_file(new_file, return_updated = False):
new_file = Files( parent = ndb.Key("FileTable", "*notitle*"),
file_name = new_file.file_name,
owner_key = new_file.owner_key,
friendly_name = new_file.friendly_name,
prev_file_key = new_file.prev_file_key,
axis_a = new_file.axis_a,
axis_b = new_file.axis_b)
new_key = new_file.put();
if return_updated:
new_file.key = new_key
else:
return new_key
