feat(core): If user context not supplied, dont create audithistory for model

this allows tests and direct creation via code if required.

ref: #789 #759

app/core/signal/audit_history.py

@@ -1,21 +1,24 @@
 from django.apps import apps
 from django.contrib.auth.models import ContentType
-from django.core.exceptions import ValidationError
 from django.db.models.signals import (
-    # post_delete,
     post_save
 )
 from django.dispatch import receiver
 
 
 
-# @receiver(post_delete, dispatch_uid="audit_history_delete")
 @receiver(post_save, dispatch_uid="audit_history_save")
 def audit_history(sender, instance, **kwargs):
 
     if getattr(instance, '_audit_enabled', False):
 
-        audit_model = apps.get_model( instance._meta.app_label, instance._meta.object_name + 'AuditHistory')
+        if instance.context.get('user', None) is None:
+            return
+
+        audit_model = apps.get_model( 
+            instance._meta.app_label,
+            instance._meta.object_name + 'AuditHistory'
+        )
 
         audit_action = audit_model.Actions.UPDATE
 
@@ -27,14 +30,6 @@ def audit_history(sender, instance, **kwargs):
 
             audit_action = audit_model.Actions.DELETE
 
-        if instance.context.get('user', None) is None:
-
-            raise ValidationError(
-                code = 'model_missing_user_context',
-                message = f'Model {instance._meta.model_name}, is missing user context. ' \
-                    'No audit history can be saved'
-            )
-
 
         history = audit_model.objects.create(
             organization = instance.organization,

app/core/tests/unit/centurion_abstract/test_unit_centurion_abstract_model.py

@@ -38,13 +38,6 @@ class CenturionAbstractModelTestCases(
                 'type': bool,
                 'value': True,
             },
-            'context': {
-                'type': dict,
-                'value': {
-                    'logger': None,
-                    'user': None,
-                }
-            },
             'model_tag': {
                 'type': str,
             },
@@ -277,16 +270,10 @@ class CenturionAbstractModelInheritedCases(
             })
 
 
-        default_val = model.context['user']
-
-        model.context['user'] = user
-
         model_object = model.objects.create(
             **kwargs
         )
 
-        model.context['user'] = default_val
-
         for field, values in many_field.items():
 
             for value in values: