Puts the receivers in a seperate file and adds appconfig

src/wagtail_personalisation/receivers.py

@@ -0,0 +1,24 @@
+from django.db.models.signals import pre_save
+from django.utils import timezone
+
+from wagtail_personalisation.models import Segment
+
+
+def check_status_change(sender, instance, *args, **kwargs):
+    """Check if the status has changed. Alter dates accordingly."""
+    try:
+        original_status = sender.objects.get(pk=instance.id).status
+    except sender.DoesNotExist:
+        original_status = ""
+
+    if original_status != instance.status:
+        if instance.status == "enabled":
+            instance.enable_date = timezone.now()
+            instance.visit_count = 0
+            return instance
+        if instance.status == "disabled":
+            instance.disable_date = timezone.now()
+
+
+def register():
+    pre_save.connect(check_status_change, sender=Segment)