improve case management

atlas/models.py

@@ -533,6 +533,15 @@ class Case(models.Model, AuthorMixin, QuestionMixin):
 
         return size
 
+    def check_user_can_edit(self, user):
+        if user.is_superuser:
+            return True
+
+        if self.author.filter(id=user.id).exists():
+            return True
+
+        return False
+