github.com/go-package-lab/mysql-orm

mysql-orm

go get github.com/go-package-lab/mysql-orm

demo mysql 表结构

CREATE TABLE `test` (
  `id` int(11) unsigned NOT NULL AUTO_INCREMENT,
  `title` varchar(100) DEFAULT '',
  `uid` int(10) DEFAULT '0',
  PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=1 DEFAULT CHARSET=utf8mb4;

CREATE TABLE `test_attr` (
  `id` int(10) DEFAULT '0',
  `content` text,
  UNIQUE KEY `id` (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;

demo.go

package main

import (
	DB "github.com/go-package-lab/mysql-orm"
	"fmt"
	"log"
	"os"
)
//连接池1
var db1 = DB.DbConfig{
	DriverName: "mysql",
	Addr:       "127.0.0.1",
	User:       "root",
	Passwd:     "root",
	Port:       "3306",
	DBName:     "test1",
	Debug:     true,
}
//连接池2
var db2 = DB.DbConfig{
	DriverName: "mysql",
	Addr:       "127.0.0.1",
	User:       "root",
	Passwd:     "root",
	Port:       "3306",
	DBName:     "test2",
	Debug:     true,
}

func init() {
	err := db1.Connect()
	if err != nil {
		fmt.Println("connect err:", err.Error())
		os.Exit(1)
	}

	err = db2.Connect()
	if err != nil {
		fmt.Println("connect err:", err.Error())
		os.Exit(1)
	}
}
func main() {
	defer db1.Close()

	datas := make(DB.DataStruct)
	datas["title"] = "今天天气不错"
	datas["uid"] = 666

	id, err := db1.Insert("test", datas)
	if err != nil {
		fmt.Println("insert err:", err.Error())
	}
	fmt.Println("连接池1: id = ", id)

	//----------------------------------------------------------

	defer db2.Close()

	datas2 := make(DB.DataStruct)
	datas2["title"] = "还是不错的"
	datas2["uid"] = 999
	//datas2["adddate"] = "2010-01-01"
	datas2.Set("adddate", "2010-01-02")

	id2, err := db2.Insert("test", datas2)
	if err != nil {
		fmt.Println("insert err:", err.Error())
	}
	fmt.Println("连接池2: id2 = ", id2)

	//get one 获取一条

	data, err := db2.GetOne("test", "*", "id > ? ORDER BY id DESC", 11)
	fmt.Println(data)
	fmt.Println(data["title"])
	fmt.Println(data["uid"])
	fmt.Println(data["adddate"])
	fmt.Println(DB.Format2String(data, "adddate"))

	//select
	data2, err := db2.Select("test", "*", "title LIKE ? ORDER BY id DESC Limit 0,5", "%人民%")
	for i, i2 := range data2 {
		//fmt.Println(i, i2)
		fmt.Println(i+1,DB.Format2String(i2, "title"))
	}
	//UPDATE
	datas3 := make(DB.DataStruct)
	datas3["title"] = "修改后的结果2"
	datas3["uid"] = 8

	rows, err := db2.Update("test", datas3, "id=?", 86)
	fmt.Println("影响行数:", rows)

	//delete
	deleteid := 86
	rows2, err := db2.Delete("test", "id=?", deleteid)
	fmt.Println("影响行数:", rows2)

	title := "----test---"
	rows3, err := db2.Delete("test", "title=?", title)
	fmt.Println("影响行数:", rows3)

	//count
	total, err := db2.Count("test", "id>? AND id<?", 190,195)
	fmt.Println("总数:", total)


	//批量插入
	data9 := []DB.DataStruct{
		DB.DataStruct{
			"title": "A1111",
			"uid": 100,
		},
		DB.DataStruct{
			"title": "A2222",
			"uid": 200,
		},
	}

	num, err :=db2.BatchInsert("test", data9)
	fmt.Println("成功插入：",num,"条",err)

	//自定义联合查询
	data10, err := db2.Query("SELECT * FROM test a,test_attr b where a.id=b.id AND a.uid=?",999)
	for i, i2 := range data10 {
		//fmt.Println(i, i2)
		fmt.Println(i+1,DB.Format2String(i2, "content"))
	}
	//采用底层方法执行
	var title2 string
	err = db2.Db.QueryRow("select title from test where id = ?", 1).Scan(&title2)
	if err != nil {
		log.Fatal(err)
	}
	fmt.Println(title2)

	//

}