Proper .env loading and a working .gitignore

src/config/settings.py

@@ -10,22 +10,18 @@ For the full list of settings and their values, see
 https://docs.djangoproject.com/en/5.2/ref/settings/
 """
 
+import os
 from pathlib import Path
 from dotenv import load_dotenv
 
+
 # Build paths inside the project like this: BASE_DIR / 'subdir'.
 BASE_DIR = Path(__file__).resolve().parent.parent
+
 load_dotenv(BASE_DIR / ".env")
 
-# Quick-start development settings - unsuitable for production
-# See https://docs.djangoproject.com/en/5.2/howto/deployment/checklist/
-
-# SECURITY WARNING: keep the secret key used in production secret!
 SECRET_KEY = os.environ["DJANGO_SECRET_KEY"]
-
-# SECURITY WARNING: don't run with debug turned on in production!
 DEBUG = int(os.environ.get("DJANGO_DEBUG", default=0))
-
 ALLOWED_HOSTS = os.environ.get(
     "DJANGO_ALLOWED_HOSTS", default="localhost 127.0.0.1 0.0.0.0"
 ).split()
@@ -71,18 +67,26 @@ TEMPLATES = [
 
 WSGI_APPLICATION = "config.wsgi.application"
 
-
-# Database
-# https://docs.djangoproject.com/en/5.2/ref/settings/#databases
+DB_ENGINE=os.environ.get('DB_ENGINE', default='sqlite3')
+DEFAULT_DB = {
+    'ENGINE': 'django.db.backends.%s' % DB_ENGINE,
+}
+if DB_ENGINE=='sqlite3':
+    DEFAULT_DB['NAME'] = os.path.join('BASE_DIR', os.environ.get('DB_NAME', default='urania.sqlite3'))
+else:
+    DEFAULT_DB['NAME'] = os.environ.get('DB_NAME')
+    DEFAULT_DB['USER'] = os.environ.get('DB_USER')
+    DEFAULT_DB['PASSWORD'] = os.environ.get('DB_PASSWORD')
+    DEFAULT_DB['HOST'] = os.environ.get('DB_HOST')
+    if DB_ENGINE=='postgresql':
+        DEFAULT_DB['PORT'] = os.environ.get('DB_PORT', default=5432)
+    elif DB_ENGINE=='mysql':
+        DEFAULT_DB['PORT'] = os.environ.get('DB_PORT', default=3306)
 
 DATABASES = {
-    "default": {
-        "ENGINE": "django.db.backends.sqlite3",
-        "NAME": BASE_DIR / "db.sqlite3",
-    }
+    'default': DEFAULT_DB,
 }
 
-
 # Password validation
 # https://docs.djangoproject.com/en/5.2/ref/settings/#auth-password-validators