From ab2580311ae4e3516ec944e24539b8789f14d952 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ses=C3=B3stris=20Vieira?= <sesostrisvieira@gmail.com>
Date: Wed, 27 Dec 2023 12:20:01 -0300
Subject: [PATCH] =?UTF-8?q?Armadilha=20para=20descobrir=20dele=C3=A7=C3=A3?=
 =?UTF-8?q?o=20de=20registros?=
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---
 sigi/apps/espacos/apps.py    |  5 +++++
 sigi/apps/espacos/signals.py | 22 ++++++++++++++++++++++
 2 files changed, 27 insertions(+)
 create mode 100644 sigi/apps/espacos/signals.py

diff --git a/sigi/apps/espacos/apps.py b/sigi/apps/espacos/apps.py
index 15da7f9..0dab50c 100644
--- a/sigi/apps/espacos/apps.py
+++ b/sigi/apps/espacos/apps.py
@@ -7,3 +7,8 @@ class EspacosConfig(AppConfig):
     name = "espacos"
     name = "sigi.apps.espacos"
     verbose_name = _("Agenda de espaços")
+
+    def ready(self):
+        from . import signals
+
+        return super().ready()
diff --git a/sigi/apps/espacos/signals.py b/sigi/apps/espacos/signals.py
new file mode 100644
index 0000000..af52cc1
--- /dev/null
+++ b/sigi/apps/espacos/signals.py
@@ -0,0 +1,22 @@
+import traceback
+from django.conf import settings
+from django.core.mail import send_mail
+from django.db.models.signals import pre_delete
+from django.dispatch import receiver
+from django.utils import timezone
+from sigi.apps.espacos.models import Reserva
+
+
+@receiver(pre_delete, sender=Reserva)
+def reserva_pre_delete(sender, **kwargs):
+    origin = kwargs.get("origin", None)
+    if origin and origin.count() == Reserva.objects.count():
+        stack_array = [f"At {timezone.localtime()} all records deleted:"]
+        stack_array.extend(traceback.format_stack())
+        send_mail(
+            subject="Armadilha deleção de reservas",
+            message="\n".join(stack_array),
+            from_email=settings.DEFAULT_FROM_EMAIL,
+            recipient_list=[email for name, email in settings.ADMINS],
+            fail_silently=True,
+        )