Initial commit: EFINTEL ERP Django Port

expenses/signals.py

@@ -0,0 +1,41 @@
+from django.db.models.signals import post_save, post_delete
+from django.dispatch import receiver
+from channels.layers import get_channel_layer
+from asgiref.sync import async_to_sync
+from .models import Expense
+
+@receiver(post_save, sender=Expense)
+def expense_saved(sender, instance, created, **kwargs):
+    channel_layer = get_channel_layer()
+    action = 'created' if created else 'updated'
+    
+    expense_data = {
+        'id': instance.id,
+        'amount': str(instance.amount),
+        'category': instance.category.name if instance.category else None,
+        'project': instance.project.name if instance.project else None,
+        'user': instance.user.username if instance.user else None,
+        'date': instance.date.strftime('%Y-%m-%d'),
+        'description': instance.description,
+    }
+
+    async_to_sync(channel_layer.group_send)(
+        'expenses_updates',
+        {
+            'type': 'expense_update',
+            'action': action,
+            'expense': expense_data
+        }
+    )
+
+@receiver(post_delete, sender=Expense)
+def expense_deleted(sender, instance, **kwargs):
+    channel_layer = get_channel_layer()
+    async_to_sync(channel_layer.group_send)(
+        'expenses_updates',
+        {
+            'type': 'expense_update',
+            'action': 'deleted',
+            'expense': {'id': instance.id}
+        }
+    )