Class UUID

cassandra/cqlengine/columns.py:647–672

Stores a type 1 or 4 UUID

class UUID(Column):
    """
    Stores a type 1 or 4 UUID
    """
    db_type = 'uuid'

    def validate(self, value):
        val = super(UUID, self).validate(value)
        if val is None:
            return
        if isinstance(val, _UUID):
            return val
        if isinstance(val, str):
            try:
                return _UUID(val)
            except ValueError:
                # fall-through to error
                pass
        raise ValidationError("{0} {1} is not a valid uuid".format(
            self.column_name, value))

    def to_python(self, value):
        return self.validate(value)

    def to_database(self, value):
        return self.validate(value)


class TimeUUID(UUID):