def METHOD_NAME(self, path):
    """Create a single directory"""
    result = self.findDir(path)
    if not result["OK"]:
        return result
    dirID = result["Value"]
    if dirID:
        return S_OK(dirID)
    dpath = path
    if path[0] == "/":
        dpath = path[1:]
    elements = dpath.split("/")
    level = len(elements)
    dirName = elements[-1]
    result = self.getParent(path)
    if not result["OK"]:
        return result
    parentDirID = result["Value"]
    names = ["DirName", "Level", "Parent"]
    values = [dirName, level, parentDirID]
    result = self.db.insertFields("FC_DirectoryTreeM", names, values)
    if not result["OK"]:
        return result
    return S_OK(result["lastRowId"])