添加教程的API

oj/dev_settings.py

@@ -6,12 +6,8 @@ BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
 
 DATABASES = {
     "default": {
-        "ENGINE": "django.db.backends.postgresql",
-        "HOST": get_env("POSTGRES_HOST", "127.0.0.1"),
-        "PORT": get_env("POSTGRES_PORT", "5432"),
-        "NAME": get_env("POSTGRES_DB", "onlinejudge"),
-        "USER": get_env("POSTGRES_USER", "onlinejudge"),
-        "PASSWORD": get_env("POSTGRES_PASSWORD", "onlinejudge"),
+        "ENGINE": "django.db.backends.sqlite3",
+        "NAME": os.path.join(BASE_DIR, "db.sqlite3"),
     }
 }