Numerous improvements to case questions

atlas/models.py

@@ -774,6 +774,8 @@ class CaseCollection(ExamOrCollectionGenericBase):
         help_text="If true allows users self complete and review cases in a self directed way.",
     )
 
+    feedback_once_collection_complete = models.BooleanField(default=True, help_text="If true feedback is only given once the collection is complete. If false feedback is given after each case.")
+
     class COLLECTION_TYPE_CHOICES(models.TextChoices):
         REVIEW = (
             "REV",
@@ -783,6 +785,10 @@ class CaseCollection(ExamOrCollectionGenericBase):
             "REP",
             _("Report"),
         )
+        QUESTION = (
+            "QUE",
+            _("Question"),
+        )
         VIVA = (
             "VIV",
             _("Viva"),
@@ -874,6 +880,33 @@ class CaseCollection(ExamOrCollectionGenericBase):
         """Returns the cases in the collection in order of the CaseDetail sort_order"""
         return self.cases.all().order_by("casedetail__sort_order")
 
+    def get_next_case(self, case):
+        cases = list(self.get_cases())
+
+        try:
+            return cases[cases.index(case) + 1]
+        except IndexError:
+            return None
+
+    def get_previous_case(self, case):
+        cases = list(self.get_cases())
+
+        new_index =  cases.index(case) - 1
+
+        if new_index < 0:
+            return None
+        else:
+            return cases[new_index]
+
+
+    def get_index_of_case(self, case, case_count=False):
+        cases = list(self.get_cases())
+
+        if case_count:
+            return cases.index(case), len(cases)
+        else:
+            return cases.index(case)
+
     def get_case_by_index(
         self, case_index: int, case_count=False
     ) -> Case | Tuple[Case, int]: