650 lines
21 KiB
Python
650 lines
21 KiB
Python
#!/usr/bin/env python3
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# -*- coding: utf-8 -*-
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"""
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数据库服务层
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负责景区、产品、风格、受众等数据的查询和管理
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"""
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import logging
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import time
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import traceback
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from typing import Dict, Any, Optional, List, Tuple
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import mysql.connector
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from mysql.connector import pooling
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from core.config import ConfigManager
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logger = logging.getLogger(__name__)
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class DatabaseService:
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"""数据库服务类"""
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def __init__(self, config_manager: ConfigManager):
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"""
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初始化数据库服务
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Args:
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config_manager: 配置管理器
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"""
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self.config_manager = config_manager
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self.db_pool = self._init_db_pool()
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def _init_db_pool(self):
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"""初始化数据库连接池"""
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# 获取数据库配置
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raw_db_config = self.config_manager.get_raw_config('database')
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# 处理环境变量
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db_config = self._process_env_vars(raw_db_config)
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# 连接尝试配置
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connection_attempts = [
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{"desc": "使用配置文件中的设置", "config": db_config},
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{"desc": "使用明确的密码", "config": {**db_config, "password": "password"}},
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{"desc": "使用空密码", "config": {**db_config, "password": ""}},
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{"desc": "使用auth_plugin", "config": {**db_config, "auth_plugin": "mysql_native_password"}}
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]
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# 尝试不同的连接方式
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for attempt in connection_attempts:
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try:
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# 打印连接信息（不包含密码）
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connection_info = {k: v for k, v in attempt["config"].items() if k != 'password'}
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logger.info(f"尝试连接数据库 ({attempt['desc']}): {connection_info}")
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# 创建连接池
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pool = pooling.MySQLConnectionPool(
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pool_name=f"database_service_pool_{int(time.time())}",
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pool_size=10,
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**attempt["config"]
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)
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# 测试连接
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with pool.get_connection() as conn:
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cursor = conn.cursor()
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cursor.execute("SELECT 1")
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cursor.fetchall()
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logger.info(f"数据库连接池初始化成功 ({attempt['desc']})")
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return pool
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except Exception as e:
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error_details = traceback.format_exc()
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logger.error(f"数据库连接尝试 ({attempt['desc']}) 失败: {e}\n{error_details}")
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logger.error("所有数据库连接尝试都失败了")
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return None
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def _process_env_vars(self, config: Dict[str, Any]) -> Dict[str, Any]:
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"""处理环境变量"""
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import os
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processed_config = {}
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for key, value in config.items():
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if isinstance(value, str) and value.startswith("${") and value.endswith("}"):
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env_var = value[2:-1]
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processed_config[key] = os.environ.get(env_var, "")
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else:
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processed_config[key] = value
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return processed_config
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def get_scenic_spot_by_id(self, spot_id: int) -> Optional[Dict[str, Any]]:
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"""
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根据ID获取景区信息
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Args:
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spot_id: 景区ID
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Returns:
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景区信息字典，如果未找到则返回None
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"""
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if not self.db_pool:
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logger.error("数据库连接池未初始化")
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return None
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try:
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conn = self.db_pool.get_connection()
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cursor = conn.cursor(dictionary=True)
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cursor.execute(
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"SELECT * FROM scenicSpot WHERE id = %s AND isDelete = 0",
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(spot_id,)
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)
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result = cursor.fetchone()
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cursor.close()
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conn.close()
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if result:
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logger.info(f"找到景区信息: ID={spot_id}, 名称={result['name']}")
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return result
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else:
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logger.warning(f"未找到景区信息: ID={spot_id}")
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return None
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except Exception as e:
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logger.error(f"查询景区信息失败: {e}")
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return None
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def get_product_by_id(self, product_id: int) -> Optional[Dict[str, Any]]:
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"""
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根据ID获取产品信息
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Args:
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product_id: 产品ID
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Returns:
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产品信息字典，如果未找到则返回None
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"""
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if not self.db_pool:
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logger.error("数据库连接池未初始化")
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return None
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try:
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conn = self.db_pool.get_connection()
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cursor = conn.cursor(dictionary=True)
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cursor.execute(
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"SELECT * FROM product WHERE id = %s AND isDelete = 0",
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(product_id,)
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)
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result = cursor.fetchone()
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cursor.close()
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conn.close()
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if result:
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logger.info(f"找到产品信息: ID={product_id}, 名称={result['name']}")
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return result
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else:
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logger.warning(f"未找到产品信息: ID={product_id}")
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return None
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except Exception as e:
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logger.error(f"查询产品信息失败: {e}")
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return None
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def get_style_by_id(self, style_id: int) -> Optional[Dict[str, Any]]:
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"""
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根据ID获取风格信息
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Args:
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style_id: 风格ID
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Returns:
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风格信息字典，如果未找到则返回None
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"""
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if not self.db_pool:
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logger.error("数据库连接池未初始化")
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return None
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try:
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conn = self.db_pool.get_connection()
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cursor = conn.cursor(dictionary=True)
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cursor.execute(
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"SELECT * FROM contentStyle WHERE id = %s AND isDelete = 0",
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(style_id,)
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)
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result = cursor.fetchone()
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cursor.close()
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conn.close()
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if result:
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logger.info(f"找到风格信息: ID={style_id}, 名称={result['styleName']}")
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return result
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else:
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logger.warning(f"未找到风格信息: ID={style_id}")
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return None
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except Exception as e:
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logger.error(f"查询风格信息失败: {e}")
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return None
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def get_audience_by_id(self, audience_id: int) -> Optional[Dict[str, Any]]:
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"""
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根据ID获取受众信息
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Args:
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audience_id: 受众ID
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Returns:
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受众信息字典，如果未找到则返回None
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"""
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if not self.db_pool:
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logger.error("数据库连接池未初始化")
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return None
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try:
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conn = self.db_pool.get_connection()
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cursor = conn.cursor(dictionary=True)
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cursor.execute(
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"SELECT * FROM targetAudience WHERE id = %s AND isDelete = 0",
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(audience_id,)
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)
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result = cursor.fetchone()
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cursor.close()
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conn.close()
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if result:
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logger.info(f"找到受众信息: ID={audience_id}, 名称={result['audienceName']}")
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return result
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else:
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logger.warning(f"未找到受众信息: ID={audience_id}")
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return None
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except Exception as e:
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logger.error(f"查询受众信息失败: {e}")
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return None
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def get_scenic_spots_by_ids(self, spot_ids: List[int]) -> List[Dict[str, Any]]:
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"""
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根据ID列表批量获取景区信息
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Args:
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spot_ids: 景区ID列表
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Returns:
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景区信息列表
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"""
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if not self.db_pool or not spot_ids:
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return []
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try:
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conn = self.db_pool.get_connection()
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cursor = conn.cursor(dictionary=True)
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# 构建IN查询
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placeholders = ','.join(['%s'] * len(spot_ids))
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query = f"SELECT * FROM scenicSpot WHERE id IN ({placeholders}) AND isDelete = 0"
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cursor.execute(query, spot_ids)
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results = cursor.fetchall()
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cursor.close()
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conn.close()
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logger.info(f"批量查询景区信息: 请求{len(spot_ids)}个，找到{len(results)}个")
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return results
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except Exception as e:
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logger.error(f"批量查询景区信息失败: {e}")
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return []
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def get_products_by_ids(self, productIds: List[int]) -> List[Dict[str, Any]]:
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"""
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根据ID列表批量获取产品信息
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Args:
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productIds: 产品ID列表
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Returns:
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产品信息列表
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"""
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if not self.db_pool or not productIds:
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return []
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try:
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conn = self.db_pool.get_connection()
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cursor = conn.cursor(dictionary=True)
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# 构建IN查询
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placeholders = ','.join(['%s'] * len(productIds))
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query = f"SELECT * FROM product WHERE id IN ({placeholders}) AND isDelete = 0"
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cursor.execute(query, productIds)
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results = cursor.fetchall()
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cursor.close()
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conn.close()
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logger.info(f"批量查询产品信息: 请求{len(productIds)}个，找到{len(results)}个")
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return results
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except Exception as e:
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logger.error(f"批量查询产品信息失败: {e}")
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return []
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def get_styles_by_ids(self, styleIds: List[int]) -> List[Dict[str, Any]]:
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"""
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根据ID列表批量获取风格信息
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Args:
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styleIds: 风格ID列表
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Returns:
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风格信息列表
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"""
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if not self.db_pool or not styleIds:
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return []
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try:
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conn = self.db_pool.get_connection()
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cursor = conn.cursor(dictionary=True)
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# 构建IN查询
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placeholders = ','.join(['%s'] * len(styleIds))
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query = f"SELECT * FROM contentStyle WHERE id IN ({placeholders}) AND isDelete = 0"
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cursor.execute(query, styleIds)
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results = cursor.fetchall()
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cursor.close()
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conn.close()
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logger.info(f"批量查询风格信息: 请求{len(styleIds)}个，找到{len(results)}个")
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return results
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except Exception as e:
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logger.error(f"批量查询风格信息失败: {e}")
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return []
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def get_audiences_by_ids(self, audienceIds: List[int]) -> List[Dict[str, Any]]:
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"""
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根据ID列表批量获取受众信息
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Args:
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audienceIds: 受众ID列表
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Returns:
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受众信息列表
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"""
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if not self.db_pool or not audienceIds:
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return []
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try:
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conn = self.db_pool.get_connection()
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cursor = conn.cursor(dictionary=True)
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# 构建IN查询
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placeholders = ','.join(['%s'] * len(audienceIds))
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query = f"SELECT * FROM targetAudience WHERE id IN ({placeholders}) AND isDelete = 0"
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cursor.execute(query, audienceIds)
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results = cursor.fetchall()
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cursor.close()
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conn.close()
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logger.info(f"批量查询受众信息: 请求{len(audienceIds)}个，找到{len(results)}个")
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return results
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except Exception as e:
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logger.error(f"批量查询受众信息失败: {e}")
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return []
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def list_all_scenic_spots(self, user_id: Optional[int] = None, is_public: Optional[bool] = None) -> List[Dict[str, Any]]:
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"""
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获取所有景区列表
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Args:
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user_id: 用户ID，如果提供则只返回该用户的景区
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is_public: 是否公开，如果提供则过滤公开/私有景区
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Returns:
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景区列表
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"""
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if not self.db_pool:
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return []
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try:
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conn = self.db_pool.get_connection()
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cursor = conn.cursor(dictionary=True)
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# 构建查询条件
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conditions = ["isDelete = 0"]
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params = []
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if user_id is not None:
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conditions.append("userId = %s")
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params.append(user_id)
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if is_public is not None:
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conditions.append("isPublic = %s")
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params.append(1 if is_public else 0)
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query = f"SELECT id, name, address, description, advantage, highlight, isPublic, userId FROM scenicSpot WHERE {' AND '.join(conditions)} ORDER BY name"
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cursor.execute(query, params)
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results = cursor.fetchall()
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cursor.close()
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conn.close()
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logger.info(f"获取景区列表: 找到{len(results)}个景区")
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return results
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except Exception as e:
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logger.error(f"获取景区列表失败: {e}")
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return []
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def list_all_products(self, user_id: Optional[int] = None, is_public: Optional[bool] = None) -> List[Dict[str, Any]]:
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"""
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获取所有产品列表
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Args:
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user_id: 用户ID，如果提供则只返回该用户的产品
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is_public: 是否公开，如果提供则过滤公开/私有产品
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Returns:
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产品列表
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"""
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if not self.db_pool:
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return []
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try:
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conn = self.db_pool.get_connection()
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cursor = conn.cursor(dictionary=True)
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# 构建查询条件
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conditions = ["isDelete = 0"]
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params = []
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if user_id is not None:
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conditions.append("userId = %s")
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params.append(user_id)
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if is_public is not None:
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conditions.append("isPublic = %s")
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params.append(1 if is_public else 0)
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query = f"SELECT id, name, originPrice, realPrice, packageInfo, description, advantage, highlight, isPublic, userId FROM product WHERE {' AND '.join(conditions)} ORDER BY name"
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cursor.execute(query, params)
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results = cursor.fetchall()
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cursor.close()
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conn.close()
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logger.info(f"获取产品列表: 找到{len(results)}个产品")
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return results
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except Exception as e:
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logger.error(f"获取产品列表失败: {e}")
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return []
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def list_all_styles(self) -> List[Dict[str, Any]]:
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"""
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获取所有风格列表
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Returns:
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风格列表
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"""
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if not self.db_pool:
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return []
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try:
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conn = self.db_pool.get_connection()
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cursor = conn.cursor(dictionary=True)
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cursor.execute("SELECT id, styleName, description FROM contentStyle WHERE isDelete = 0 ORDER BY styleName")
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results = cursor.fetchall()
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cursor.close()
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conn.close()
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logger.info(f"获取风格列表: 找到{len(results)}个风格")
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return results
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except Exception as e:
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logger.error(f"获取风格列表失败: {e}")
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return []
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def list_all_audiences(self) -> List[Dict[str, Any]]:
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"""
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获取所有受众列表
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Returns:
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受众列表
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"""
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if not self.db_pool:
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return []
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try:
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conn = self.db_pool.get_connection()
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cursor = conn.cursor(dictionary=True)
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cursor.execute("SELECT id, audienceName, description FROM targetAudience WHERE isDelete = 0 ORDER BY audienceName")
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results = cursor.fetchall()
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cursor.close()
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conn.close()
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logger.info(f"获取受众列表: 找到{len(results)}个受众")
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return results
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except Exception as e:
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logger.error(f"获取受众列表失败: {e}")
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return []
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def is_available(self) -> bool:
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"""
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检查数据库服务是否可用
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Returns:
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数据库是否可用
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"""
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return self.db_pool is not None
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# 名称到ID的反向查询方法
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def get_style_id_by_name(self, style_name: str) -> Optional[int]:
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"""
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根据风格名称获取风格ID
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Args:
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style_name: 风格名称
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Returns:
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风格ID，如果未找到则返回None
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"""
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if not self.db_pool:
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logger.error("数据库连接池未初始化")
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return None
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try:
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conn = self.db_pool.get_connection()
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cursor = conn.cursor(dictionary=True)
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cursor.execute(
|
||
"SELECT id FROM style WHERE styleName = %s AND isDelete = 0",
|
||
(style_name,)
|
||
)
|
||
result = cursor.fetchone()
|
||
cursor.close()
|
||
conn.close()
|
||
|
||
if result:
|
||
return result['id']
|
||
else:
|
||
logger.warning(f"未找到风格: {style_name}")
|
||
return None
|
||
|
||
except Exception as e:
|
||
logger.error(f"查询风格ID失败: {e}")
|
||
return None
|
||
|
||
def get_audience_id_by_name(self, audience_name: str) -> Optional[int]:
|
||
"""
|
||
根据受众名称获取受众ID
|
||
|
||
Args:
|
||
audience_name: 受众名称
|
||
|
||
Returns:
|
||
受众ID，如果未找到则返回None
|
||
"""
|
||
if not self.db_pool:
|
||
logger.error("数据库连接池未初始化")
|
||
return None
|
||
|
||
try:
|
||
conn = self.db_pool.get_connection()
|
||
cursor = conn.cursor(dictionary=True)
|
||
cursor.execute(
|
||
"SELECT id FROM targetAudience WHERE audienceName = %s AND isDelete = 0",
|
||
(audience_name,)
|
||
)
|
||
result = cursor.fetchone()
|
||
cursor.close()
|
||
conn.close()
|
||
|
||
if result:
|
||
return result['id']
|
||
else:
|
||
logger.warning(f"未找到受众: {audience_name}")
|
||
return None
|
||
|
||
except Exception as e:
|
||
logger.error(f"查询受众ID失败: {e}")
|
||
return None
|
||
|
||
def get_scenic_spot_id_by_name(self, spot_name: str) -> Optional[int]:
|
||
"""
|
||
根据景区名称获取景区ID
|
||
|
||
Args:
|
||
spot_name: 景区名称
|
||
|
||
Returns:
|
||
景区ID，如果未找到则返回None
|
||
"""
|
||
if not self.db_pool:
|
||
logger.error("数据库连接池未初始化")
|
||
return None
|
||
|
||
try:
|
||
conn = self.db_pool.get_connection()
|
||
cursor = conn.cursor(dictionary=True)
|
||
cursor.execute(
|
||
"SELECT id FROM scenicSpot WHERE name = %s AND isDelete = 0",
|
||
(spot_name,)
|
||
)
|
||
result = cursor.fetchone()
|
||
cursor.close()
|
||
conn.close()
|
||
|
||
if result:
|
||
return result['id']
|
||
else:
|
||
logger.warning(f"未找到景区: {spot_name}")
|
||
return None
|
||
|
||
except Exception as e:
|
||
logger.error(f"查询景区ID失败: {e}")
|
||
return None
|
||
|
||
def get_product_id_by_name(self, product_name: str) -> Optional[int]:
|
||
"""
|
||
根据产品名称获取产品ID
|
||
|
||
Args:
|
||
product_name: 产品名称
|
||
|
||
Returns:
|
||
产品ID，如果未找到则返回None
|
||
"""
|
||
if not self.db_pool:
|
||
logger.error("数据库连接池未初始化")
|
||
return None
|
||
|
||
try:
|
||
conn = self.db_pool.get_connection()
|
||
cursor = conn.cursor(dictionary=True)
|
||
cursor.execute(
|
||
"SELECT id FROM product WHERE productName = %s AND isDelete = 0",
|
||
(product_name,)
|
||
)
|
||
result = cursor.fetchone()
|
||
cursor.close()
|
||
conn.close()
|
||
|
||
if result:
|
||
return result['id']
|
||
else:
|
||
logger.warning(f"未找到产品: {product_name}")
|
||
return None
|
||
|
||
except Exception as e:
|
||
logger.error(f"查询产品ID失败: {e}")
|
||
return None |