add: add chat for income and expence

core/apps/finance/signals/__init__.py

@@ -0,0 +1,2 @@
+from .expence import *
+from .income import *

core/apps/finance/signals/expence.py

@@ -0,0 +1,13 @@
+from django.dispatch import receiver
+from django.db.models.signals import post_save
+
+from core.apps.finance.models import Expence, ExpenceChat
+
+
+@receiver(signal=post_save, sender=Expence)
+def create_expence_chat(sender, instance, created, **kwargs):
+    if created:
+        ExpenceChat.objects.create(
+            expence=instance
+        )
+

core/apps/finance/signals/income.py

@@ -0,0 +1,13 @@
+from django.dispatch import receiver
+from django.db.models.signals import post_save
+
+from core.apps.finance.models import Income, IncomeChat
+
+
+@receiver(signal=post_save, sender=Income)
+def create_income_chat(sender, instance, created, **kwargs):
+    if created:
+        IncomeChat.objects.create(
+            income=instance
+        )
+