views.py 中的 Django 数学过滤器

Question

How to compute the final average of every students in views.py and post it in html template?

for example I have two(2) students, I will get the average of every Grading Categories(Exam, Quizzes, Homework, Classwork) to get the final rating

first is I need to compute it in views.py and post it in my html template, I don't know how to do it so please me guys

this is my models.py

Teacher = models.ForeignKey(EmployeeUser, related_name='+', on_delete=models.CASCADE,
                            null=True, blank=True)
Grading_Categories = models.ForeignKey(gradingCategories, related_name='+', on_delete=models.CASCADE,
                                       null=True, blank=True)
Subjects = models.ForeignKey(Subject, related_name='+', on_delete=models.CASCADE, null=True)
Students_Enrollment_Records = models.ForeignKey(StudentsEnrolledSubject, related_name='+',
                                                on_delete=models.CASCADE, null=True)
Average = models.FloatField(null=True, blank=True)

when I tried this

YourModel.objects.values('Grading_Categories').annotate(avg= Avg('Average'))

Answer 1

你可以试试这个

YourModel.objects.values('Grading_Categories').annotate(avg= Avg('Average'))