Update UserSerializer: get user creating or updating from context.

program/serializers.py

@@ -116,6 +116,7 @@ class UserSerializer(serializers.ModelSerializer):
                 user=user,
                 cba_username=profile_data.get("cba_username").strip(),
                 cba_user_token=profile_data.get("cba_user_token").strip(),
+                created_by=self.context["user"],
             )
             profile.save()
 
@@ -148,6 +149,7 @@ class UserSerializer(serializers.ModelSerializer):
 
             profile.cba_username = profile_data.get("cba_username")
             profile.cba_user_token = profile_data.get("cba_user_token")
+            profile.updated_by = self.context["user"]
             profile.save()
 
         instance.save()