Changed all status to start with Uppercase letters, made 3 properties required. Changed all the status to start with Uppercase letters because they are publicly visible. Also changed required=True to False for created_by, modified_by property to allow site admin to create and modify tasks. Also changed required=True to False for history to allow history not to be written until the task is published.

class WKTAdaptor(object):
    """
    This provides an adaptor for Geometries sent to the
    MySQL and Oracle database backends.
    """
    def __init__(self, geom):
        self.wkt = geom.wkt
        self.srid = geom.srid

    def __eq__(self, other):
        return self.wkt == other.wkt and self.srid == other.srid 

    def __str__(self):
        return self.wkt