Refactor case handling: update URLs and views to support case_number and case_id interchangeably, enhancing backward compatibility and maintainability

atlas/models.py

@@ -1443,6 +1443,13 @@ class CaseDetail(models.Model):
     def __str__(self) -> str:
         return f"{self.case} -> {self.collection}"
 
+
+    def get_case_index(self):
+        """Returns the question index (number) in the collection (0 indexed)"""
+        case_details = list(self.collection.casedetail_set.all().order_by("sort_order"))
+
+        return case_details.index(self)
+
     def get_question_schema(self):
         return json.dumps(self.question_schema)