perf: minor fixes

pkg/persistence/databases/postgresql.py

@@ -1,8 +1,6 @@
 from __future__ import annotations
 
-import pip
 import sqlalchemy.ext.asyncio as sqlalchemy_asyncio
-import sys
 
 from .. import database
 
@@ -12,19 +10,12 @@ class PostgreSQLDatabaseManager(database.BaseDatabaseManager):
     """PostgreSQL database manager"""
 
     async def initialize(self) -> None:
+        postgresql_config = self.ap.instance_config.data.get('database', {}).get('postgresql', {})
 
-        # default to PostgreSQL with asyncpg driver
-        try:
-            __import__("asyncpg")
-        except ImportError:
-            print('以下依赖包未安装，将自动安装，请完成后重启程序：')
-            print(
-                'The dependence package asyncpg is missing, it will be installed automatically, please restart the program after completion:'
-            )
-            pip.main(['install', "asyncpg"])
-            print('已自动安装缺失的依赖包 asyncpg ，请重启程序。')
-            print('The missing dependence asyncpg have been installed automatically, please restart the program.')
-            sys.exit(0)
-
-        engine_url = self.ap.instance_config.data['system'].get('database', {}).get('engine_url', 'postgresql+asyncpg://root:***@127.0.0.1:5432/postgres')
+        host = postgresql_config.get('host', '127.0.0.1')
+        port = postgresql_config.get('port', 5432)
+        user = postgresql_config.get('user', 'postgres')
+        password = postgresql_config.get('password', 'postgres')
+        database = postgresql_config.get('database', 'postgres')
+        engine_url = f'postgresql+asyncpg://{user}:{password}@{host}:{port}/{database}'
         self.engine = sqlalchemy_asyncio.create_async_engine(engine_url)