数据表中有2个字段都指向一个外键
class Student(models.Model):
old_school = model.ForeignField(School)
school = model.ForeignField(School)
我想找出所有old_school == school的行,请问这个怎么处理?
我试过了用:
Student.objects.all().exclude(old_school = school)
Student.objects.all().exclude(old_school__id = school__id)
Student.objects.all().exclude(old_school = self.school)
都不行。
我想找出所有old_school == school的行
from django.db.models import F
Student.objects.filter(old_school=F(“school”))
解释见官方doc