invalidate cache on model save

CHANGELOG.rst

@@ -5,6 +5,7 @@ Changelog
 ------------------
 * cleanups and refactoring
 * faster queries
+* invalidate cache on models save
 
 0.14.0 (2020-01-28)
 ------------------

admin_tools_stats/models.py

@@ -22,6 +22,8 @@
 from django.db.models import Q
 from django.db.models.aggregates import Avg, Count, Max, Min, StdDev, Sum, Variance
 from django.db.models.functions import Trunc
+from django.db.models.signals import post_save
+from django.dispatch import receiver
 from django.utils.encoding import force_text
 from django.utils.safestring import mark_safe
 from django.utils.timezone import now
@@ -498,3 +500,15 @@ def __str__(self):
     def get_active_graph(cls):
         """Returns active graphs"""
         return DashboardStats.objects.filter(is_visible=1).prefetch_related('criteria')
+
+
+@receiver(post_save, sender=DashboardStatsCriteria)
+def clear_caches_criteria(sender, instance, **kwargs):
+    for dashboard_stats in instance.dashboardstats_set.all():
+        instance.get_dynamic_choices.invalidate(instance, dashboard_stats)
+
+
+@receiver(post_save, sender=DashboardStats)
+def clear_caches_stats(sender, instance, **kwargs):
+    for criteria in instance.criteria.all():
+        criteria.get_dynamic_choices.invalidate(criteria, instance)

admin_tools_stats/tests.py

@@ -11,7 +11,6 @@
 import datetime
 from collections import OrderedDict
 
-from django.core.cache import cache
 from django.core.exceptions import ValidationError
 from django.test import TestCase
 from django.test.utils import override_settings
@@ -89,13 +88,7 @@ def test_admin_dashboard_page_post(self):
         )
 
 
-class ClearCacheMixin(object):
-    def tearDown(self):
-        super().tearDown()
-        cache.clear()
-
-
-class ModelTests(ClearCacheMixin, TestCase):
+class ModelTests(TestCase):
     maxDiff = None
 
     def setUp(self):