db_column 和 to_field共用
from django.db import models # Create your models here. class Student(models.Model): class Mate: db_table = 'students' student_id = models.AutoField(primary_key=True) name = models.CharField(unique=True, max_length=30, verbose_name='姓名') age = models.PositiveSmallIntegerField(verbose_name='年龄') def __repr__(self): return '{} {}'.format(self.name, self.age) __str__ = __repr__ class Score(models.Model): class Mate: db_table = 'scroes' score_id = models.AutoField(primary_key=True) subject = models.CharField(max_length=40, verbose_name='科目') score = models.PositiveSmallIntegerField(verbose_name='分数') name = models.ForeignKey(Student, db_column='name', to_field='name', on_delete=models.CASCADE) def __repr__(self): return '{} {} {}'.format(self.subject, self.score, self.name) __str__ = __repr__
插入数据
stu1 = Student(1, '王一涵', 10) sco1 = Score(1, '语文', 90, '王一涵') stu1.save() sco1.save()