reoorganise atlas modules

atlas/models.py

@@ -1,6 +1,8 @@
 import json
 import os
 import pathlib
+
+from django.http import Http404
 from rad.settings import REMOTE_URL
 from django.db.models.fields.files import ImageField
 from django.db.models.fields.related import ForeignKey
@@ -506,11 +508,46 @@ class CaseCollection(ExamCollectionGenericBase):
         return reverse("atlas:collection_detail", kwargs={"pk": self.pk})
 
     def get_take_url(self):
-        return reverse("atlas:collection_take", kwargs={"pk": self.pk})
+        return reverse("atlas:collection_take_start", kwargs={"pk": self.pk})
 
     def __str__(self) -> str:
         return self.name
 
+    def review_only(self) -> bool:
+        """Returns True if a users cannot submit responses
+
+        Returns:
+            bool: _description_
+        """
+        if self.collection_type == self.COLLECTION_TYPE_CHOICES.REVIEW:
+            return True
+
+        return False
+
+
+    def check_user_can_take(self, cid, passcode, request):
+        """
+        Helper to check if a user is allowed to access a collection
+
+        Args:
+            cid (_type_): _description_
+            passcode (_type_): _description_
+            request (_type_): _description_
+
+        Raises:
+            Http404: If user does not have access
+        """
+        if not self.active: 
+            raise Http404("Exam not found")
+
+        #if self.collection_is_review():
+        #    return True
+
+        #if not self.self_review:
+
+        if not self.check_cid_user(cid, passcode, request):
+            raise Http404("Error accessing exam")
+
 
 class CaseDetail(models.Model):
     case = models.ForeignKey(Case, on_delete=models.CASCADE)