def save_file_in_node(obj):
new_file_node = FileNode(file=obj.file, node_type=FileNode.FILE, has_metadata=True)
new_file_node.name = os.path.basename(new_file_node.file.name)
# using os.path.splitext(), foo.tar.gz would become foo.tar_2.gz instead of foo_2.tar.gz
split = multi_splitext(new_file_node.name)
new_file_node.make_name_unique_numbered(split[0], split[1])
# Determine various file parameters
# new_file_node.size = new_file_node.file.size
new_file_node.extension = split[2].lstrip('.').lower()
new_file_node.width, new_file_node.height = (None, None)
new_file_node.media_type = FileNode.mimetype_to_media_type(new_file_node.name)
new_file_node.slug = slugify(new_file_node.name)
new_file_node.has_metadata = new_file_node.check_minimal_metadata()
new_file_node.title = obj.title
new_file_node.file = str(obj.file)
super(FileNode, new_file_node).save()
obj.file_node = new_file_node
obj.save()