Add default setting records during data migration.

chat/apps.py

@@ -4,3 +4,6 @@
 class ChatConfig(AppConfig):
     default_auto_field = 'django.db.models.BigAutoField'
     name = 'chat'
+
+    def ready(self):
+        import chat.signals

chat/signals.py

@@ -0,0 +1,14 @@
+from django.db.models.signals import post_migrate
+from django.dispatch import receiver
+from .models import Setting
+
+@receiver(post_migrate)
+def load_default_settings(sender, **kwargs):
+    if sender.name == 'chat':
+        print('Setting up default settings...')
+        if not Setting.objects.filter(name='openai_api_key').exists():
+            Setting.objects.create(name='openai_api_key')
+            print('Created setting: openai_api_key')
+        if not Setting.objects.filter(name='open_registration').exists():
+            Setting.objects.create(name='open_registration', value='True')
+            print('Created setting: open_registration')