/
db_init.go
72 lines (65 loc) · 1.99 KB
/
db_init.go
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package dao
import (
"context"
"fmt"
"strings"
"time"
"github.com/gin-gonic/gin"
"gorm.io/driver/mysql"
"gorm.io/gorm"
"gorm.io/gorm/logger"
"gorm.io/gorm/schema"
"github.com/CocaineCong/grpc-todolist/config"
logger2 "github.com/CocaineCong/grpc-todolist/pkg/util/logger"
)
var _db *gorm.DB
func InitDB() {
mConfig := config.Conf.MySQL
host := mConfig.Host
port := mConfig.Port
database := mConfig.Database
username := mConfig.UserName
password := mConfig.Password
charset := mConfig.Charset
dsn := strings.Join([]string{username, ":", password, "@tcp(", host, ":", port, ")/", database, "?charset=" + charset + "&parseTime=true"}, "")
err := Database(dsn)
if err != nil {
fmt.Println(err)
logger2.LogrusObj.Error(err)
}
}
func Database(connString string) error {
var ormLogger logger.Interface
if gin.Mode() == "debug" {
ormLogger = logger.Default.LogMode(logger.Info)
} else {
ormLogger = logger.Default
}
db, err := gorm.Open(mysql.New(mysql.Config{
DSN: connString, // DSN data source name
DefaultStringSize: 256, // string 类型字段的默认长度
DisableDatetimePrecision: true, // 禁用 datetime 精度,MySQL 5.6 之前的数据库不支持
DontSupportRenameIndex: true, // 重命名索引时采用删除并新建的方式,MySQL 5.7 之前的数据库和 MariaDB 不支持重命名索引
DontSupportRenameColumn: true, // 用 `change` 重命名列,MySQL 8 之前的数据库和 MariaDB 不支持重命名列
SkipInitializeWithVersion: false, // 根据版本自动配置
}), &gorm.Config{
Logger: ormLogger,
NamingStrategy: schema.NamingStrategy{
SingularTable: true,
},
})
if err != nil {
panic(err)
}
sqlDB, _ := db.DB()
sqlDB.SetMaxIdleConns(20) // 设置连接池,空闲
sqlDB.SetMaxOpenConns(100) // 打开
sqlDB.SetConnMaxLifetime(time.Second * 30)
_db = db
migration()
return err
}
func NewDBClient(ctx context.Context) *gorm.DB {
db := _db
return db.WithContext(ctx)
}