gadm-ods/common.in/clinit/mysq-gorm.go

// Copyright 2019 autocareai.com. All rights reserved.
// Use of this source code is governed by autocareai.com.

package clinit

import (
	"encoding/json"
	"fmt"
	"log"

	"gorm.io/driver/mysql"
	"gorm.io/gorm"
)

var db *gorm.DB

// Setup 建立连接
func InitMysqlGorm(user, passwd, addr, dbname, charset string, maxIdle, maxConn json.Number, logMode bool) *gorm.DB {
	args := fmt.Sprintf("%s:%s@tcp(%s)/%s?charset=%s&parseTime=True&loc=Local",
		user, passwd, addr, dbname, charset)
	fmt.Println("args", args)
	var err error
	db, err = gorm.Open(mysql.Open(args), &gorm.Config{})
	if err != nil {
		log.Fatal("open mysql connection failed. err: ", err)
	}

	if logMode {
		db.Debug()
		//db.Logger.LogMode(logger.Info)
	} else {
		//db.Logger.LogMode(logger.Error)
	}

	maxIdleInt, _ := maxIdle.Int64()
	maxConnInt, _ := maxConn.Int64()
	sqlDb, err := db.DB()
	sqlDb.SetMaxIdleConns(int(maxIdleInt))
	sqlDb.SetMaxOpenConns(int(maxConnInt))

	// 其他设置
	//fmt.Println("log mode:", logMode)
	/*db.LogMode(logMode)
	db.DB().SetMaxIdleConns(maxIdle)
	db.DB().SetMaxOpenConns(maxConn)*/
	return db
}

// DB 获取连接
func DB() *gorm.DB {
	return db
}

/*
// Close 关闭连接
func Close() {
	if db != nil {
		db.Close()
	}
}*/