Django Models - Create ManyToManyField that connects to the members of a group - django

Question

I have these models: Users, Grades, Groups, Projects, Tasks.
Every Grade, has Users (that can be student or teacher). The teacher can create groups of students. How do I create a ManyToManyField that connects to the specific users of that Grade?
Right Now when I try to make a group, it inherits from Grades and I get EK17A, TE17A (Note that i want to get the users in EK17A, or the users in EK17A)
This is so the teacher can put the students into project groups :D
from django.db import models
from django.db import models
from django.contrib.auth.models import User
from django.db.models.signals import post_save
from django.dispatch import receiver
class UserProfile(models.Model):
user = models.OneToOneField(User, on_delete=models.CASCADE)
age = models.IntegerField()
description = models.CharField(max_length=300)
is_student = models.BooleanField(default=False)
is_teacher = models.BooleanField(default=False)
class Meta:
verbose_name_plural = 'User Profiles'
def __str__(self):
return self.user.username
#receiver(post_save, sender=User)
def create_user_data(sender, update_fields, created, instance, **kwargs):
if created:
user = instance
profile = UserProfile.objects.create(user=user, is_teacher=False, is_student=True, age=18, description='No Description')
class Grades(models.Model):
name = models.CharField(max_length=10)
members = models.ManyToManyField(UserProfile, blank=True)
class Meta:
verbose_name_plural = 'Grades'
def __str__(self):
return self.name
class TeacherProjectTask(models.Model):
title = models.CharField(max_length=150)
description = models.CharField(max_length=1000, blank=True)
state = models.CharField(max_length=20)
class Meta:
verbose_name_plural = 'Tasks'
def __str__(self):
return self.title
class TeacherProject(models.Model):
title = models.CharField(max_length=150)
description = models.CharField(max_length=1000)
tasks = models.ManyToManyField(TeacherProjectTask, blank=True)
grade = models.OneToOneField(Grades, blank=True, on_delete=models.CASCADE)
class Meta:
verbose_name_plural = 'Projects'
def __str__(self):
return self.title
class ProjectGroup(models.Model):
title = models.CharField(max_length=150)
description = models.CharField(max_length=1000)
members = models.ManyToManyField(Grades, blank=True)
class Meta:
verbose_name_plural = 'Group'
def __str__(self):
return self.title