move pool_recycle and pool_pre_ping in config.py

mybot/config.py

@@ -54,10 +54,14 @@ class StateStorageConfig:
 @dataclass
 class DatabaseConfig:
     url: str
+    pool_recycle: int
+    pool_pre_ping: bool
 
     @classmethod
     def from_env(cls):
-        return cls(os.getenv("DATABASE_URL", "sqlite:///bot.db"))
+        return cls(os.getenv("DB_URL", "sqlite:///bot.db"),
+                   int(os.getenv("DB_POOL_RECYCLE", 3600)),
+                   bool(int(os.getenv("DB_POOL_PRE_PING", True))))
 
 
 @dataclass

mybot/database/__init__.py

@@ -7,8 +7,8 @@ from .models import User
 
 def get_engine(config: DatabaseConfig):
     engine = create_engine(config.url,
-                           pool_recycle=3600,
-                           pool_pre_ping=True)
+                           pool_recycle=config.pool_recycle,
+                           pool_pre_ping=config.pool_pre_ping)
     return engine