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package conf
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import (
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"sync"
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"time"
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"github.com/go-redis/redis/v8"
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"github.com/sirupsen/logrus"
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"gorm.io/driver/mysql"
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"gorm.io/driver/postgres"
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"gorm.io/driver/sqlite"
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"gorm.io/gorm"
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"gorm.io/gorm/logger"
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"gorm.io/gorm/schema"
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"gorm.io/plugin/dbresolver"
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)
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var (
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db *gorm.DB
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Redis *redis.Client
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once sync.Once
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)
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func MustGormDB() *gorm.DB {
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once.Do(func() {
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var err error
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if db, err = newDBEngine(); err != nil {
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logrus.Fatalf("new gorm db failed: %s", err)
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}
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})
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return db
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}
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func newDBEngine() (*gorm.DB, error) {
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newLogger := logger.New(
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logrus.StandardLogger(), // io writer（日志输出的目标，前缀和日志包含的内容）
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logger.Config{
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SlowThreshold: time.Second, // 慢 SQL 阈值
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LogLevel: DatabaseSetting.logLevel(), // 日志级别
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IgnoreRecordNotFoundError: true, // 忽略ErrRecordNotFound（记录未找到）错误
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Colorful: false, // 禁用彩色打印
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},
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)
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config := &gorm.Config{
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Logger: newLogger,
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NamingStrategy: schema.NamingStrategy{
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TablePrefix: DatabaseSetting.TablePrefix,
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SingularTable: true,
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},
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}
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plugin := dbresolver.Register(dbresolver.Config{}).
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SetConnMaxIdleTime(time.Hour).
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SetConnMaxLifetime(24 * time.Hour).
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SetMaxIdleConns(MysqlSetting.MaxIdleConns).
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SetMaxOpenConns(MysqlSetting.MaxOpenConns)
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var (
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db *gorm.DB
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err error
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)
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if CfgIf("MySQL") {
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logrus.Debugln("use MySQL as db")
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if db, err = gorm.Open(mysql.Open(MysqlSetting.Dsn()), config); err == nil {
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db.Use(plugin)
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}
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} else if CfgIf("Postgres") {
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logrus.Debugln("use PostgreSQL as db")
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db, err = gorm.Open(postgres.Open(PostgresSetting.Dsn()), config)
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} else if CfgIf("Sqlite3") {
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logrus.Debugf("use Sqlite3 as db dsn: %s", Sqlite3Setting.Dsn())
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db, err = gorm.Open(sqlite.Open(Sqlite3Setting.Dsn()), config)
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} else {
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logrus.Debugln("use default of MySQL as db")
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if db, err = gorm.Open(mysql.Open(MysqlSetting.Dsn()), config); err == nil {
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db.Use(plugin)
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}
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}
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return db, err
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}
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func setupDBEngine() {
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Redis = redis.NewClient(&redis.Options{
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Addr: redisSetting.Host,
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Password: redisSetting.Password,
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DB: redisSetting.DB,
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})
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}
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