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#!/usr/bin/env python
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# -*- encoding: utf-8 -*-
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'''
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@Date:2022/08/26 09:48:12
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'''
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import sys
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from tkinter import N
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sys.path.append('.')
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import pymysql
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from dbutils.pooled_db import PooledDB
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from common.logger_utils import logger
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def list_base_str(data_list):
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if data_list:
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# data = []
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resp_data = []
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for i in data_list:
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tup_data = []
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key, value = "", ""
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for k,v in i.items():
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if k == "is_add":
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v = 0
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if v is None:
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continue
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key += f"{k},"
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value += "%s,"
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tup_data.append(v)
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# data.append(tuple(tup_data))
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if key.count(",") > 1:
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key = key[:-1]
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value = value[:-1]
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resp_data.append(
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{
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"key":key,
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"value":value,
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"data":tuple(tup_data)
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}
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)
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return resp_data
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return None
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class MysqlPool:
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"""
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MySQL 数据库连接池类 配置变量
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"""
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'''
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:param
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reset: how connections should be reset when returned to the pool
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(False or None to rollback transcations started with begin(),
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True to always issue a rollback for safety's sake)
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:param
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setsession: optional list of SQL commands that may serve to prepare
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the session, e.g. ["set datestyle to ...", "set time zone ..."]
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'''
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'''
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https://blog.51cto.com/abyss/1736844
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其中的
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setsession=['SET AUTOCOMMIT = 1']
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就是用来设置线程池是否打开自动更新的配置，0为False，1为True
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'''
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# 初始化数据库连接池变量
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__pool = None
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# 创建连接池的最大数量
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__MAX_CONNECTIONS = 20
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# 连接池中空闲连接的初始数量
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__MIN_CACHED = 5
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# 连接池中空闲连接的最大数量
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__MAX_CACHED = 5
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# 共享连接的最大数量
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__MAX_SHARED = 0
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# 超过最大连接数量时候的表现，为True等待连接数量下降，为false直接报错处理
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__BLOCK = True
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# 单个连接的最大重复使用次数
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__MAX_USAGE = 1
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# 当返回到池时，连接应该如何重置
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# (False或None回滚以begin()开始的事务，为了安全起见，总是发出回滚)
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# 设置自动提交
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__SET_SESSION = []
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# 不能是 UTF-8
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__CHARSET = 'UTF8'
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def __init__(self, host, port, user, password, database):
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"""
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:param host: 数据库主机地址
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:param port: 端口号
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:param user: 用户名
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:param password: 密码
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:param database: 数据库名
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"""
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if not self.__pool:
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# self代表当前类的实例，即为 MysqlPool（） 带小括号，执行后的数据。
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# __class__，魔法函数，代表从当前类的实例中，获取当前类，即为 MysqlPool 不带小括号的类。
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# __pool，这个代表的事类的变量，即为在类下面创建的初始化连接池，__pool
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self.__class__.__pool = PooledDB(
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creator=pymysql,
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host=host,
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port=port,
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user=user,
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password=password,
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database=database,
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maxconnections=self.__MAX_CONNECTIONS,
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mincached=self.__MIN_CACHED,
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maxcached=self.__MAX_CACHED,
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maxshared=self.__MAX_SHARED,
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blocking=self.__BLOCK,
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maxusage=self.__MAX_USAGE,
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setsession=self.__SET_SESSION,
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charset=self.__CHARSET
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)
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def get_connect(self):
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return self.__pool.connection()
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class DbManager(object):
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conn = None
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cur = None
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POOL = MysqlPool(host='127.0.0.1',port=3306,user='root',password='123456',database='test111')
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def connectDatabase(self):
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try:
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self.conn = self.POOL.get_connect()
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self.cur = self.conn.cursor(cursor=pymysql.cursors.DictCursor)
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return True
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except:
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logger.error("connectDatabase failed")
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return False
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# 关闭数据库
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def close(self):
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if self.conn and self.cur:
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self.cur.close()
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self.conn.close()
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return True
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# 基本的执行SQL方法，下面几乎都调用这个
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def execute(self, sql, params=None, exe_many=False):
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res = self.connectDatabase()
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if not res:
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return False
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cnt = 0
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try:
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if self.conn and self.cur:
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if exe_many:
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cnt = self.cur.executemany(sql, params)
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else:
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cnt = self.cur.execute(sql)
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self.conn.commit()
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except Exception as e:
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logger.error("execute failed: " + sql)
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logger.error(str(e) + "\n\n")
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return False
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finally:
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self.close()
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return cnt
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###############################################################
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### 增删改查
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###############################################################
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# 存在不做操作，不存在则新增
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def insert_ignore(self, **kwargs):
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"""
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table：必填，表名，如：table="test_table"
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data ：必填，更新数据，字典类型，如：data=[{"aaa": "666'6", "bbb": "888"}]
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"key":key,
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"value":value,
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"data":data
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"""
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table = kwargs["table"]
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data = kwargs["data"]
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local_data = kwargs.get("update_obj")
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# table_obj = kwargs.get("table_obj")
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data_dict = list_base_str(data)
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if not data_dict:
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return None
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for i in data_dict:
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sql = f"insert ignore {table}({i.get('key')}) values{i.get('data')};"
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logger.info("sql：\n{}\n".format(sql))
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try:
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self.execute(sql)
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if local_data:
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local_data.executeNoParam(
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f"update {table} set is_add=1 where {i.get('key').split(',')[0]}='{i.get('data')[0]}'")
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except:
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self.conn.rollback()
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# 存在不做操作，不存在则新增
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def insert_ignore_update(self, **kwargs):
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"""
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table：必填，表名，如：table="test_table"
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data ：必填，更新数据，字典类型，如：data=[{"aaa": "666'6", "bbb": "888"}]
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"key":key,
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"value":value,
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"data":data
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"""
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table = kwargs["table"]
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data = kwargs["data"]
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# local_data = kwargs.get("update_obj")
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# table_obj = kwargs.get("table_obj")
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data_dict = list_base_str(data)
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if not data_dict:
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return None
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for i in data_dict:
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"""
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replace into 'subject' (subjectId,subjectName)
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values (1,'离散');
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"""
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sql = f"replace into {table}({i.get('key')}) values{i.get('data')};"
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# sql = f"insert ignore {table}({i.get('key')}) values{i.get('data')};"
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logger.info("sql：\n{}\n".format(sql))
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try:
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self.execute(sql)
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# if local_data:
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# local_data.executeNoParam(
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# f"update {table} set is_add=1 where {i.get('key').split(',')[0]}='{i.get('data')[0]}'")
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except:
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self.conn.rollback()
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# def insert_ignore
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# if __name__ == '__main__':
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# from common.utlis import get_uuid
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# db_obj = DbManager()
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# # table：必填，表名，如：table = "test_table"
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# # data ：必填，更新数据，字典类型，如：data=[{"aaa": "666'6", "bbb": "888"}]
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# data_dic = {
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# "table":"rms_user",
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# "data":[
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# {
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# 'user_id': "f87cd129-2501-11ed-af7b-f47b094925e2",
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# 'user_code': 10991,
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# 'account': '测试11',
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# 'real_name':" 测试123",
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# 'sex': 1,
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# 'mobile': "10111111111",
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# 'is_enabled': 1,
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# 'last_visit_date': '2022-07-15 08:30:47',
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# 'is_add': 1
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# }
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# ]
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# }
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# db_obj.insert_ignore(**data_dic) |
