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cloudreve/models/init.go

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package model
import (
"fmt"
"time"
"github.com/cloudreve/Cloudreve/v3/pkg/conf"
"github.com/cloudreve/Cloudreve/v3/pkg/util"
"github.com/gin-gonic/gin"
"github.com/jinzhu/gorm"
_ "github.com/jinzhu/gorm/dialects/mysql"
_ "github.com/jinzhu/gorm/dialects/sqlite"
)
// DB 数据库链接单例
var DB *gorm.DB
// Init 初始化 MySQL 链接
func Init() {
util.Log().Info("初始化数据库连接")
var (
db *gorm.DB
err error
)
if gin.Mode() == gin.TestMode {
// 测试模式下,使用内存数据库
db, err = gorm.Open("sqlite3", ":memory:")
} else {
switch conf.DatabaseConfig.Type {
case "UNSET", "sqlite", "sqlite3":
// 未指定数据库或者明确指定为 sqlite 时,使用 SQLite3 数据库
db, err = gorm.Open("sqlite3", util.RelativePath(conf.DatabaseConfig.DBFile))
case "mysql":
// 当前只支持 sqlite3 与 mysql 数据库
// TODO: import 其他 gorm 支持的主流数据库?否则直接 Open 没有任何意义。
// TODO: 数据库连接其他参数允许用户自定义?譬如编码更换为 utf8mb4 以支持表情。
db, err = gorm.Open("mysql", fmt.Sprintf("%s:%s@(%s:%d)/%s?charset=utf8&parseTime=True&loc=Local",
conf.DatabaseConfig.User,
conf.DatabaseConfig.Password,
conf.DatabaseConfig.Host,
conf.DatabaseConfig.Port,
conf.DatabaseConfig.Name))
default:
util.Log().Panic("不支持数据库类型: %s", conf.DatabaseConfig.Type)
}
}
//db.SetLogger(util.Log())
if err != nil {
util.Log().Panic("连接数据库不成功, %s", err)
}
// 处理表前缀
gorm.DefaultTableNameHandler = func(db *gorm.DB, defaultTableName string) string {
return conf.DatabaseConfig.TablePrefix + defaultTableName
}
// Debug模式下输出所有 SQL 日志
if conf.SystemConfig.Debug {
db.LogMode(true)
} else {
db.LogMode(false)
}
//设置连接池
//空闲
db.DB().SetMaxIdleConns(50)
//打开
db.DB().SetMaxOpenConns(100)
//超时
db.DB().SetConnMaxLifetime(time.Second * 30)
DB = db
//执行迁移
migration()
}