Fix database configuration

CTOAsYouGo/CTOAsYouGo/settings.py

@@ -12,6 +12,7 @@ https://docs.djangoproject.com/en/4.2/ref/settings/
 
 from pathlib import Path
 import os
+import dj_database_url
 
 # Build paths inside the project like this: BASE_DIR / 'subdir'.
 BASE_DIR = Path(__file__).resolve().parent.parent
@@ -78,12 +79,17 @@ WSGI_APPLICATION = 'CTOAsYouGo.wsgi.application'
 # Database
 # https://docs.djangoproject.com/en/4.2/ref/settings/#databases
 
-DATABASES = {
+if 'DATABASE_URL' in os.environ:
+    DATABASES = {
+        'default': dj_database_url.config()
+        }
+else:
+    DATABASES = {
     'default': {
         'ENGINE': 'django.db.backends.sqlite3',
         'NAME': BASE_DIR / 'db.sqlite3',
     }
-}
+    }
 
 
 # Password validation