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django.core.exceptions.FieldError:无法将关键字“students”解析为字段。选项包括:考试、id、学生、学生id、科目、考试_Django_Django Models_Django Views - Fatal编程技术网

django.core.exceptions.FieldError:无法将关键字“students”解析为字段。选项包括:考试、id、学生、学生id、科目、考试

django.core.exceptions.FieldError:无法将关键字“students”解析为字段。选项包括:考试、id、学生、学生id、科目、考试,django,django-models,django-views,Django,Django Models,Django Views,我正在建立一个在线课程,学生可以在登录到他们的帐户时检查他们的结果,我不知道如何从数据库中查询结果,以便能够生成老师为每个学生发布的结果。请问如何编写views.py 我做了一些事情,但有一个错误。这是我的代码: class Result(models.Model): student = models.ForeignKey(Students, on_delete=models.CASCADE) test = models.FloatField(null=True, blank=T

我正在建立一个在线课程,学生可以在登录到他们的帐户时检查他们的结果,我不知道如何从数据库中查询结果,以便能够生成老师为每个学生发布的结果。请问如何编写views.py

我做了一些事情,但有一个错误。这是我的代码:

class Result(models.Model):
    student = models.ForeignKey(Students, on_delete=models.CASCADE)
    test = models.FloatField(null=True, blank=True)
    exam = models.FloatField(null=True, blank= True)
    subject = models.CharField(max_length=3, choices=SUBJECT, null=True)

    class Meta:
        ordering = ["-student"]

    def get_total(self):
        return self.exam + self.test

    def __str__(self):
        return self.student.first_name


class Students(models.Model):
    first_name = models.CharField(max_length=15, default='top')
    last_name = models.CharField(max_length=15, default='top')
    phone_number = models.IntegerField(default=0)
    email = models.EmailField()
    class_choice = models.CharField(max_length=3, choices=CLASS)
    last_accessed = models.DateTimeField(null=True, blank=True)
    user = models.ForeignKey(User, on_delete=models.CASCADE, null=True, blank=True)

    class Meta:
        ordering = ["last_name"]

    def __str__(self):
        return self.last_name

    def get_absolute_url(self):
        return reverse('students-detail', kwargs={'pk': self.pk})
通常,我们都喜欢


这是我看到的AttributeError:“Result”对象没有属性“all”student=get\u object\u或\u 404Students,id=id results=Result.objects.filterstudents=student,如何正确使用此属性我在模型中添加了相关的\u名称。如果没有,您的查询应该是s1.result\u set.all s=get\u object\u或\u 404Student,id=id res=s.results.all或res=result.objects.filterstudent=sI已经能够将其放入上下文数据中,谢谢您的时间
class Result(models.Model):
   student = models.ForeignKey(Students, related_name='results')

class Student(models.Model):
   name = models.CharField(max_length=15, default='top')


s1 = Student.objects.get(id=1)
res = s1.results.all()