diff --git a/py12306/app/app.py b/py12306/app/app.py
index b4dfe95..8f211e0 100644
--- a/py12306/app/app.py
+++ b/py12306/app/app.py
@@ -52,7 +52,7 @@ class ConfigInstance:
         self._configs = SuperDict(configs)
         self.REDIS.update(configs.get('redis', {}))
         db = configs.get('db', {})
-        if db and not db.get('db_url'):
+        if db and db.get('engine') in ['mysql']:
             db['db_url'] = f"{db.get('engine')}://{db.get('user')}:{db.get('password')}@{db.get('host')}:{db.get('port')}/{db.get('database')}"
         self.DATABASE.update(configs.get('db', {}))
         self.DEBUG = self._configs.get('app.debug', self.DEBUG)
diff --git a/py12306/app/models.py b/py12306/app/models.py
index e7bcd0d..4cc9c1d 100644
--- a/py12306/app/models.py
+++ b/py12306/app/models.py
@@ -96,7 +96,7 @@ class QueryJob(TimestampMixin, BaseModel):
         """ 验证当前任务是否可查询"""
         if self.left_date < datetime.datetime.now().date():
             return False
-        if self.left_date > (datetime.datetime.now().date() + datetime.timedelta(days=31)):
+        if self.left_date > (datetime.datetime.now().date() + datetime.timedelta(days=30)):
             return False
         return True
 
@@ -230,8 +230,6 @@ class Ticket(TimestampMixin, BaseModel):
 
     def __init__(self, **kwargs) -> None:
         super().__init__(**kwargs)
-        self.left_date_order = lambda: self.left_date.strftime('%Y-%m-%d')
-        self.secret_str_unquote = lambda: urllib.parse.unquote(self.secret_str)
 
     class Meta:
         table = 'tickets'