add a property to the ExampleState model

backend/api/models.py

@@ -183,6 +183,11 @@ class ExampleState(models.Model):
     class Meta:
         unique_together = (('example', 'confirmed_by'),)
 
+    @property
+    def confirmed_user_role(self):
+        role_mapping = RoleMapping.objects.get(user=self.confirmed_by, project=self.example.project)
+        return role_mapping.role
+
 
 class Comment(models.Model):
     text = models.TextField()