numerous updates

atlas/models.py

@@ -645,7 +645,7 @@ class CaseCollection(models.Model):
 
     cid_users = GenericRelation("generic.CidUserExam")
 
-    valid_users = models.ManyToManyField(
+    valid_cid_users = models.ManyToManyField(
         CidUser, blank=True, related_name="casecollection_exams"
     )
 
@@ -694,9 +694,9 @@ class CaseCollection(models.Model):
         if request is not None and request.user.is_superuser:
             return True
 
-        if self.valid_users.exists():
+        if self.valid_cid_users.exists():
 
-            user = self.valid_users.filter(cid=cid).first()
+            user = self.valid_cid_users.filter(cid=cid).first()
 
             if not user or user.passcode != passcode:
                 return False