fix a few things

atlas/models.py

@@ -502,54 +502,6 @@ class CaseCollection(ExamCollectionGenericBase):
     def __str__(self) -> str:
         return self.name
 
-    def get_author_objects(self):
-        """Returns a comma seperated text list of authors"""
-        authors = [i for i in self.author.all()]
-        return authors
-
-    def check_cid_user(self, cid, passcode, request=None):
-        if request is not None and request.user.is_superuser:
-            return True
-
-        if self.valid_cid_users.exists():
-            user = self.valid_cid_users.filter(cid=cid).first()
-
-            if not user or user.passcode != passcode:
-                return False
-
-        return True
-
-    def get_or_create_cid_user_exam(self, cid_user, start_time=None):
-        content_type = ContentType.objects.get_for_model(self)
-        c = CidUserExam.objects.filter(
-            content_type=content_type, object_id=self.pk, cid_user=cid_user
-        ).first()
-        if c:
-            return c
-
-        if start_time is None:
-            start_time = timezone.now()
-        new = CidUserExam(
-            content_type=content_type,
-            object_id=self.pk,
-            cid_user=cid_user,
-            start_time=start_time,
-        )
-        new.save()
-        return new
-
-    def get_cid_user_exams(self, cid_user=None):
-        content_type = ContentType.objects.get_for_model(self)
-        if cid_user is None:
-            return CidUserExam.objects.filter(
-                content_type=content_type,
-                object_id=self.pk,
-            )
-        else:
-            return CidUserExam.objects.filter(
-                content_type=content_type, object_id=self.pk, cid_user=cid_user
-            )
-
 
 class CaseDetail(models.Model):
     case = models.ForeignKey(Case, on_delete=models.CASCADE)