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node-transform-mysql

v0.0.4

Published

javascript根据参数自动生成mysql语句,链式调用,功能强大,使用简单

Downloads

7

Readme

node-transform-mysql文档

node-transform-mysql是在node.js场景中使用mysql,根据传入的参数生成相应的sql语句。

它所做的事情很简单也很专一,只负责生成sql语句,不执行任何的增删改查。

API参考很流行的ThinkPHP模型API,因为它已经做够流行和好用了。非常感谢ThinkPHP文档,很多案例参考其文档

API文档地址:https://wangweianger.gitbooks.io/node-transform-mysql/content/

安装:

不用担心它的体量大,整体代码300行左右,压缩之后代码不足8k 首先通过 npm 安装:

npm install node-transform-mysql

然后使用一个支持 CommonJS 或 ES2015 的模块管理器,例如 webpack:

// 使用 ES6 的转译器,如 babel
import sql from node-transform-mysql

// 不使用 ES6 的转译器
var sql = require('node-transform-mysql')

sql调用方法的顺序内部已经做了排序,因此可以不按严格的sql语句顺序来写

简单用法

查询

sql
    .table('node_table')
    .where('id=1')
    .select()

SELECT * FROM node_table WHERE id=1


sql
    .table('node_table')
    .field('id,name')
    .where({id:1})
    .select()

SELECT id,name FROM node_table WHERE id=1

插入

sql
    .table('node_table')
    .data({name:'zane',email:'[email protected]'})
    .insert()

INSERT INTO node_table (name,email) VALUES (`zane`,`[email protected]`)

更新

sql
    .table('node_table')
    .data({name:'zane',email:'[email protected]'})
    .update()

UPDATE node_table SET name=`zane`,email=`[email protected]`

删除

let data=[{
        id:1,
        name:'zane'
    },{
        sex:1,
        address:'shenzheng'
    }]

DELETE FROM node_table WHERE name=`zane`
    

高级用法

数据库的查询是最复杂的,因此高级用法主要针对于查询

//参数json多字段
sql
    .table('node_table')
    .where({id:1,name:'zane'})
    .select()

SELECT  * FROM node_table WHERE id=1 AND name=`zane`

//参数数组
let data=[
    {id:1,name:'zhangsan',_type:'or'},
    {sex:1,number:3}
]
sql.table('node_table').where(data).select()

SELECT * FROM node_table WHERE (id=1 OR name=`zhangsan` ) AND (sex=1 AND number=3 )

//多字段连接方式
let data=[
    {id:1,name:'zhangsan',_type:'or',_nexttype:'or'},
    {sex:1,number:3,_type:'and'}
]
sql.table('node_table').where(data).select()

SELECT * FROM node_table WHERE (id=1 OR name=`zhangsan`) OR (sex=1 AND number=3)

//表达式查询
let data={
    id:{eq:100,egt:10,_type:'or'},
    name:'zhangshan'
}
sql.table('node_table').where(data).select()

SELECT  * FROM node_table WHERE ((id=100) OR (id>=10)) AND name=`zhangshan`

//混合查询
let data=[{
    id:{eq:100,egt:10,_type:'or'},
    name:'zhangshan',
    _nexttype:'or'
},{
    status:1,
    name:{like:'%zane%'}
}]
sql.table('node_table').where(data).select()

SELECT * FROM node_table WHERE (((id=100) OR (id>=10)) AND name=`zhangshan`) OR (status=1 AND ((name LIKE `%zane%`))) 


//UNION , UNION ALL 组合使用
sql
    .union('SELECT * FROM think_user_1',true)
    .union('SELECT * FROM think_user_2',true)
    .union(['SELECT * FROM think_user_3','SELECT name FROM think_user_4'])
    .union('SELECT * FROM think_user_5',true)
    .select()

得到
(SELECT * FROM think_user_1) UNION ALL  
(SELECT * FROM think_user_2) UNION ALL 
(SELECT * FROM think_user_3) UNION 
(SELECT name FROM think_user_4)  UNION  
(SELECT * FROM think_user_5)

更多用法请查看详细文档

文档目录

项目运行

git clone https://github.com/wangweianger/node-transform-mysql.git
npm install

//dve
npm run dve

//product
npm run build