smomop

Features similar to django drf source field, I don't know how to implement it

4

``` class House(Model): id = fields.IntField(pk=True) house_name: str = fields.CharField(max_length=255) info: str = fields.CharField(max_length=255) user = fields.ForeignKeyField( "models.User", on_delete=fields.SET_NULL, related_name="houses", null=True, ) class User(Model): id = fields.IntField(pk=True) name: str =...