郗君

`class Objectives(BaseModelMixin): table = "objectives" student=fields.ForeignKeyField('models.Student',null=True,on_delete=fields.SET_NULL) class Student(BaseModelMixin): table = "user_student" user=fields.OneToOneField('models.User',null=True,on_delete=fields.SET_NULL) ` It was ok to try this code: await Objectives.filter(student_id=request.user.id,reward_id__isnull=True).delete() So how to make query a foreign key...

` max_times=await Objectives.filter(student__user=request.user).count()----OK obj_exist=await Objectives.filter(student__user=request.user).delete()----ERROR `

> 最新的源代码呢？ THANK YOU VERY MUCH..