engigu
86 lines
2.0 KiB
Go
86 lines
2.0 KiB
Go
package database
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import (
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"fmt"
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"time"
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"github.com/engigu/baihu-panel/internal/logger"
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"github.com/engigu/baihu-panel/internal/systime"
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"github.com/glebarez/sqlite"
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"gorm.io/driver/mysql"
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"gorm.io/driver/postgres"
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"gorm.io/gorm"
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gormlogger "gorm.io/gorm/logger"
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)
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var DB *gorm.DB
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var DBConfig *Config
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type Config struct {
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Type string // sqlite, mysql, postgres
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Host string
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Port int
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User string
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Password string
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DBName string
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Path string // for sqlite
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}
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func Init(cfg *Config) error {
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var err error
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DBConfig = cfg
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// 设置东八区时区
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loc := systime.CST
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time.Local = loc
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var dialector gorm.Dialector
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switch cfg.Type {
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case "sqlite":
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dialector = sqlite.Open(cfg.Path + "?_busy_timeout=5000")
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case "mysql":
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dsn := fmt.Sprintf("%s:%s@tcp(%s:%d)/%s?charset=utf8mb4&parseTime=True&loc=Asia%%2FShanghai",
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cfg.User, cfg.Password, cfg.Host, cfg.Port, cfg.DBName)
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dialector = mysql.Open(dsn)
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case "postgres":
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dsn := fmt.Sprintf("host=%s port=%d user=%s password=%s dbname=%s sslmode=disable TimeZone=Asia/Shanghai",
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cfg.Host, cfg.Port, cfg.User, cfg.Password, cfg.DBName)
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dialector = postgres.Open(dsn)
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default:
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return fmt.Errorf("unsupported database type: %s", cfg.Type)
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}
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DB, err = gorm.Open(dialector, &gorm.Config{
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Logger: gormlogger.Default.LogMode(gormlogger.Warn),
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NowFunc: func() time.Time {
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return time.Now().In(loc)
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},
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})
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if err != nil {
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return fmt.Errorf("failed to connect database: %w", err)
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}
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logger.Infof("[Database] 已连接 %s 数据库 (时区: Asia/Shanghai)", cfg.Type)
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// SQLite 特殊优化：开启 WAL 模式，提升并发性能
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if cfg.Type == "sqlite" {
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sqlDB, _ := DB.DB()
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if sqlDB != nil {
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sqlDB.SetMaxOpenConns(1) // SQLite 只允许单写连接
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sqlDB.Exec("PRAGMA journal_mode=WAL")
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sqlDB.Exec("PRAGMA synchronous=NORMAL")
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}
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}
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return nil
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}
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func AutoMigrate(models ...interface{}) error {
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return DB.AutoMigrate(models...)
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}
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func GetDB() *gorm.DB {
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return DB
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}
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