__init__.py 文件源码

def add_son_manipulator(self, manipulator):
        """Add a new son manipulator to this database.

        Newly added manipulators will be applied before existing ones.

        :Parameters:
          - `manipulator`: the manipulator to add
        """
        # We override add_son_manipulator to unwrap the AutoReference's
        # database attribute.
        if isinstance(manipulator, pymongo.son_manipulator.AutoReference):
            db = manipulator.database
            if isinstance(db, MotorDatabase):
                manipulator.database = db.delegate

        self.delegate.add_son_manipulator(manipulator)