simple CURD of mysql for python
Project description
pythink
灵感来自于ThinkPHP 部分代码实现参考了 records
根据现有业务 实现了简单的增删改查, 可以用作日常助手
依赖:
SQLAlchemy>=1.2.8 ps:原来基于peewee实现的,不过问题较多,就直接用SQLAlchemy
安装
pip install pythink
快速开始
新建表
CREATE TABLE `student` (
`id` int(11) NOT NULL AUTO_INCREMENT,
`name` varchar(20) DEFAULT '',
`age` int(11),
`create_time` datetime DEFAULT NULL,
PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8
代码示例
1、连接数据库,创建Model
# -*- coding: utf-8 -*-
from pythink import ThinkModel, ThinkDatabase
db_url = "mysql://root:123456@127.0.01:3306/demo"
db = ThinkDatabase(db_url)
class StudentThinkModel(ThinkModel):
table_name = "student"
database = db
2、插入操作
# 1、增加单条记录
data = {
"name": "Tom"
}
>>> StudentThinkModel.insert(data)
>>> 1
# 2、增加多条记录
data = [
{
"name": "Tom",
},
{
"name": "Jack"
}
]
>>> StudentThinkModel.insert(data)
>>> 2
# 3、插入多条 分段插入
data = [
{
"name": "Tom",
"age": 24,
},
{
"name": "Tom",
"age": 25,
},
{
"name": "Tom",
"age": 26,
},
{
"name": "Tom",
"age": 27,
},
{
"name": "Tom",
"age": 28,
},
{
"name": "Tom",
"age": 29,
}
]
# 每次插入3 条数据
>>> StudentThinkModel.insert(data, truncate=3)
>>> 6
3、查询操作
# 1、查询数量
>>> StudentThinkModel.count()
>>> 24
# 2、查询记录
rows = StudentThinkModel.select(["name", "age"], where="id>25", limit=5)
for row in rows:
print(row.name, row.age)
# ('Tom', 25L)
# ('Tom', 26L)
# ('Tom', 27L)
# ('Tom', 28L)
# ('Tom', 29L)
4、更新操作
# 条件更新
data = {
"name": "tom",
"age": 30
}
>>> StudentThinkModel.update(data, "id=25")
>>> 1
5、删除操作
# 删除
>>> StudentThinkModel.delete("id=13")
>>> 1
当然,也可以不写表名,就像(省略部分代码)
class BaseThinkModel(ThinkModel):
database = db
class StudentThinkModel(BaseThinkModel):
"""
学生类
会被自动转为 小写命名方式:student
"""
更多关于使用示例: ThinkDatabase https://github.com/mouday/PyThink/blob/master/test_database.py
ThinkModel https://github.com/mouday/PyThink/blob/master/test_modle_extend.py
更新记录
部分版本可能存在不兼容,属于正常现象,后续版本会趋于稳定
时间 |
版本 |
主要更新 |
---|---|---|
2019-04-14 |
v0.0.1 |
基于peewee 实现基本的CURD |
2019-04-20 |
v0.0.2 |
增强Model的功能,配置自动完成字段 |
2019-04-26 |
v0.0.3 |
添加多行插入功能 |
2019-04-27 |
v0.0.4 |
将update、delete修改得更通用 |
2019-04-30 |
v0.0.5 |
基于SQLAlchemy重写逻辑,完成多行分次插入 |
2019-04-30 |
v0.0.6 |
修复安装报错的问题 |
2019-05-10 |
v0.0.7 |
添加自动转为类名为表名 |
2019-05-15 |
v0.0.8 |
给Model添加一些快捷方式 |
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