add clean db script into core app

core/management/commands/clean_deleted.py

@@ -0,0 +1,18 @@
+from django.core.management.base import BaseCommand, CommandError
+import django.apps
+
+from core.models import AbstractStatusModel
+
+
+class Command(BaseCommand):
+    help = 'Clean deleted models'
+
+    def handle(self, *args, **options):
+        for model in django.apps.apps.get_models():
+            if issubclass(model, AbstractStatusModel):
+                data = model.deleted.all()
+                if data:
+                    for obj in data:
+                        obj.delete_from_base()
+
+                    self.stdout.write(self.style.SUCCESS('Successfully deleted %s %s' % (len(data), model)))