LITE-23778 Fixed serialization of DT / UUID instance_pk

* Introduced resusable func: `get_json_valid_value`

Author: maxipavlovic

dj_cqrs/dataclasses.py

@@ -3,7 +3,7 @@
 from dateutil.parser import parse as dateutil_parse
 
 from dj_cqrs.correlation import get_correlation_id
-from dj_cqrs.utils import get_message_expiration_dt
+from dj_cqrs.utils import get_json_valid_value, get_message_expiration_dt
 
 from django.utils import timezone
 
@@ -152,8 +152,8 @@ def to_dict(self):
             'cqrs_id': self.__cqrs_id,
             'instance_data': self.__instance_data,
             'previous_data': self.__previous_data,
-            'instance_pk': self.__instance_pk,
-            'correlation_id': self.__correlation_id,
+            'instance_pk': get_json_valid_value(self.__instance_pk),
+            'correlation_id': get_json_valid_value(self.__correlation_id),
             'retries': self.__retries,
             'expires': expires,
             'meta': self.__meta,

dj_cqrs/tracker.py

@@ -1,8 +1,7 @@
 #  Copyright © 2022 Ingram Micro Inc. All rights reserved.
 
-from datetime import date, datetime
-
 from dj_cqrs.constants import ALL_BASIC_FIELDS, FIELDS_TRACKER_FIELD_NAME
+from dj_cqrs.utils import get_json_valid_value
 
 from model_utils import FieldTracker
 from model_utils.tracker import FieldInstanceTracker
@@ -30,10 +29,7 @@ def changed_initial(self):
     def get_field_value(self, field):
         value = super().get_field_value(field)
 
-        if isinstance(value, (date, datetime)):
-            value = str(value)
-
-        return value
+        return get_json_valid_value(value)
 
 
 class CQRSTracker(FieldTracker):

dj_cqrs/utils.py

@@ -1,7 +1,8 @@
 #  Copyright © 2022 Ingram Micro Inc. All rights reserved.
 
 import logging
-from datetime import timedelta
+from datetime import date, datetime, timedelta
+from uuid import UUID
 
 from django.conf import settings
 from django.utils import timezone
@@ -49,3 +50,7 @@ def get_messages_prefetch_count_per_worker():
         return 0
 
     return delay_queue_max_size + 1
+
+
+def get_json_valid_value(value):
+    return str(value) if isinstance(value, (date, datetime, UUID)) else value

tests/test_utils.py

@@ -1,9 +1,15 @@
 #  Copyright © 2022 Ingram Micro Inc. All rights reserved.
 
-from datetime import datetime, timedelta, timezone
+from datetime import date, datetime, timedelta, timezone
+from uuid import UUID
+
+import pytest
 
 from dj_cqrs.utils import (
-    get_delay_queue_max_size, get_message_expiration_dt, get_messages_prefetch_count_per_worker,
+    get_delay_queue_max_size,
+    get_json_valid_value,
+    get_message_expiration_dt,
+    get_messages_prefetch_count_per_worker,
 )
 
 
@@ -60,3 +66,15 @@ def test_get_messaged_prefetch_count_per_worker_with_delay_queue(settings):
     settings.CQRS['replica']['delay_queue_max_size'] = 4
 
     assert get_messages_prefetch_count_per_worker() == 5
+
+
+@pytest.mark.parametrize('value,result', (
+    (None, None),
+    (1, 1),
+    (datetime(2022, 1, 1, second=0, tzinfo=timezone.utc), '2022-01-01 00:00:00+00:00'),
+    (date(2022, 2, 1), '2022-02-01'),
+    (UUID('0419d87b-d477-44e4-82c4-310f56faa3c7'), '0419d87b-d477-44e4-82c4-310f56faa3c7'),
+    ('abc', 'abc'),
+))
+def test_get_json_valid_value(value, result):
+    assert get_json_valid_value(value) == result