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  1. package model
  2. import (
  3. "fmt"
  4. "log"
  5. "os"
  6. "strings"
  7. "sync"
  8. "time"
  9. "github.com/QuantumNous/new-api/common"
  10. "github.com/QuantumNous/new-api/constant"
  11. "github.com/glebarez/sqlite"
  12. "gorm.io/driver/mysql"
  13. "gorm.io/driver/postgres"
  14. "gorm.io/gorm"
  15. )
  16. var commonGroupCol string
  17. var commonKeyCol string
  18. var commonTrueVal string
  19. var commonFalseVal string
  20. var logKeyCol string
  21. var logGroupCol string
  22. func initCol() {
  23. // init common column names
  24. if common.UsingPostgreSQL {
  25. commonGroupCol = `"group"`
  26. commonKeyCol = `"key"`
  27. commonTrueVal = "true"
  28. commonFalseVal = "false"
  29. } else {
  30. commonGroupCol = "`group`"
  31. commonKeyCol = "`key`"
  32. commonTrueVal = "1"
  33. commonFalseVal = "0"
  34. }
  35. if os.Getenv("LOG_SQL_DSN") != "" {
  36. switch common.LogSqlType {
  37. case common.DatabaseTypePostgreSQL:
  38. logGroupCol = `"group"`
  39. logKeyCol = `"key"`
  40. default:
  41. logGroupCol = commonGroupCol
  42. logKeyCol = commonKeyCol
  43. }
  44. } else {
  45. // LOG_SQL_DSN 为空时,日志数据库与主数据库相同
  46. if common.UsingPostgreSQL {
  47. logGroupCol = `"group"`
  48. logKeyCol = `"key"`
  49. } else {
  50. logGroupCol = commonGroupCol
  51. logKeyCol = commonKeyCol
  52. }
  53. }
  54. // log sql type and database type
  55. //common.SysLog("Using Log SQL Type: " + common.LogSqlType)
  56. }
  57. var DB *gorm.DB
  58. var LOG_DB *gorm.DB
  59. func createRootAccountIfNeed() error {
  60. var user User
  61. //if user.Status != common.UserStatusEnabled {
  62. if err := DB.First(&user).Error; err != nil {
  63. common.SysLog("no user exists, create a root user for you: username is root, password is 123456")
  64. hashedPassword, err := common.Password2Hash("123456")
  65. if err != nil {
  66. return err
  67. }
  68. rootUser := User{
  69. Username: "root",
  70. Password: hashedPassword,
  71. Role: common.RoleRootUser,
  72. Status: common.UserStatusEnabled,
  73. DisplayName: "Root User",
  74. AccessToken: nil,
  75. Quota: 100000000,
  76. }
  77. DB.Create(&rootUser)
  78. }
  79. return nil
  80. }
  81. func CheckSetup() {
  82. setup := GetSetup()
  83. if setup == nil {
  84. // No setup record exists, check if we have a root user
  85. if RootUserExists() {
  86. common.SysLog("system is not initialized, but root user exists")
  87. // Create setup record
  88. newSetup := Setup{
  89. Version: common.Version,
  90. InitializedAt: time.Now().Unix(),
  91. }
  92. err := DB.Create(&newSetup).Error
  93. if err != nil {
  94. common.SysLog("failed to create setup record: " + err.Error())
  95. }
  96. constant.Setup = true
  97. } else {
  98. common.SysLog("system is not initialized and no root user exists")
  99. constant.Setup = false
  100. }
  101. } else {
  102. // Setup record exists, system is initialized
  103. common.SysLog("system is already initialized at: " + time.Unix(setup.InitializedAt, 0).String())
  104. constant.Setup = true
  105. }
  106. }
  107. func chooseDB(envName string, isLog bool) (*gorm.DB, error) {
  108. defer func() {
  109. initCol()
  110. }()
  111. dsn := os.Getenv(envName)
  112. if dsn != "" {
  113. if strings.HasPrefix(dsn, "postgres://") || strings.HasPrefix(dsn, "postgresql://") {
  114. // Use PostgreSQL
  115. common.SysLog("using PostgreSQL as database")
  116. if !isLog {
  117. common.UsingPostgreSQL = true
  118. } else {
  119. common.LogSqlType = common.DatabaseTypePostgreSQL
  120. }
  121. return gorm.Open(postgres.New(postgres.Config{
  122. DSN: dsn,
  123. PreferSimpleProtocol: true, // disables implicit prepared statement usage
  124. }), &gorm.Config{
  125. PrepareStmt: true, // precompile SQL
  126. })
  127. }
  128. if strings.HasPrefix(dsn, "local") {
  129. common.SysLog("SQL_DSN not set, using SQLite as database")
  130. if !isLog {
  131. common.UsingSQLite = true
  132. } else {
  133. common.LogSqlType = common.DatabaseTypeSQLite
  134. }
  135. return gorm.Open(sqlite.Open(common.SQLitePath), &gorm.Config{
  136. PrepareStmt: true, // precompile SQL
  137. })
  138. }
  139. // Use MySQL
  140. common.SysLog("using MySQL as database")
  141. // check parseTime
  142. if !strings.Contains(dsn, "parseTime") {
  143. if strings.Contains(dsn, "?") {
  144. dsn += "&parseTime=true"
  145. } else {
  146. dsn += "?parseTime=true"
  147. }
  148. }
  149. if !isLog {
  150. common.UsingMySQL = true
  151. } else {
  152. common.LogSqlType = common.DatabaseTypeMySQL
  153. }
  154. return gorm.Open(mysql.Open(dsn), &gorm.Config{
  155. PrepareStmt: true, // precompile SQL
  156. })
  157. }
  158. // Use SQLite
  159. common.SysLog("SQL_DSN not set, using SQLite as database")
  160. common.UsingSQLite = true
  161. return gorm.Open(sqlite.Open(common.SQLitePath), &gorm.Config{
  162. PrepareStmt: true, // precompile SQL
  163. })
  164. }
  165. func InitDB() (err error) {
  166. db, err := chooseDB("SQL_DSN", false)
  167. if err == nil {
  168. if common.DebugEnabled {
  169. db = db.Debug()
  170. }
  171. DB = db
  172. // MySQL charset/collation startup check: ensure Chinese-capable charset
  173. if common.UsingMySQL {
  174. if err := checkMySQLChineseSupport(DB); err != nil {
  175. panic(err)
  176. }
  177. }
  178. sqlDB, err := DB.DB()
  179. if err != nil {
  180. return err
  181. }
  182. sqlDB.SetMaxIdleConns(common.GetEnvOrDefault("SQL_MAX_IDLE_CONNS", 100))
  183. sqlDB.SetMaxOpenConns(common.GetEnvOrDefault("SQL_MAX_OPEN_CONNS", 1000))
  184. sqlDB.SetConnMaxLifetime(time.Second * time.Duration(common.GetEnvOrDefault("SQL_MAX_LIFETIME", 60)))
  185. if !common.IsMasterNode {
  186. return nil
  187. }
  188. if common.UsingMySQL {
  189. //_, _ = sqlDB.Exec("ALTER TABLE channels MODIFY model_mapping TEXT;") // TODO: delete this line when most users have upgraded
  190. }
  191. common.SysLog("database migration started")
  192. err = migrateDB()
  193. return err
  194. } else {
  195. common.FatalLog(err)
  196. }
  197. return err
  198. }
  199. func InitLogDB() (err error) {
  200. if os.Getenv("LOG_SQL_DSN") == "" {
  201. LOG_DB = DB
  202. return
  203. }
  204. db, err := chooseDB("LOG_SQL_DSN", true)
  205. if err == nil {
  206. if common.DebugEnabled {
  207. db = db.Debug()
  208. }
  209. LOG_DB = db
  210. // If log DB is MySQL, also ensure Chinese-capable charset
  211. if common.LogSqlType == common.DatabaseTypeMySQL {
  212. if err := checkMySQLChineseSupport(LOG_DB); err != nil {
  213. panic(err)
  214. }
  215. }
  216. sqlDB, err := LOG_DB.DB()
  217. if err != nil {
  218. return err
  219. }
  220. sqlDB.SetMaxIdleConns(common.GetEnvOrDefault("SQL_MAX_IDLE_CONNS", 100))
  221. sqlDB.SetMaxOpenConns(common.GetEnvOrDefault("SQL_MAX_OPEN_CONNS", 1000))
  222. sqlDB.SetConnMaxLifetime(time.Second * time.Duration(common.GetEnvOrDefault("SQL_MAX_LIFETIME", 60)))
  223. if !common.IsMasterNode {
  224. return nil
  225. }
  226. common.SysLog("database migration started")
  227. err = migrateLOGDB()
  228. return err
  229. } else {
  230. common.FatalLog(err)
  231. }
  232. return err
  233. }
  234. func migrateDB() error {
  235. // Migrate price_amount column from float/double to decimal for existing tables
  236. migrateSubscriptionPlanPriceAmount()
  237. err := DB.AutoMigrate(
  238. &Channel{},
  239. &Token{},
  240. &User{},
  241. &PasskeyCredential{},
  242. &Option{},
  243. &Redemption{},
  244. &Ability{},
  245. &Log{},
  246. &Midjourney{},
  247. &TopUp{},
  248. &QuotaData{},
  249. &Task{},
  250. &Model{},
  251. &Vendor{},
  252. &PrefillGroup{},
  253. &Setup{},
  254. &TwoFA{},
  255. &TwoFABackupCode{},
  256. &Checkin{},
  257. &SubscriptionOrder{},
  258. &UserSubscription{},
  259. &SubscriptionPreConsumeRecord{},
  260. &CustomOAuthProvider{},
  261. &UserOAuthBinding{},
  262. &ChannelPricing{},
  263. &PricingTag{},
  264. )
  265. if err != nil {
  266. return err
  267. }
  268. if common.UsingSQLite {
  269. if err := ensureSubscriptionPlanTableSQLite(); err != nil {
  270. return err
  271. }
  272. } else {
  273. if err := DB.AutoMigrate(&SubscriptionPlan{}); err != nil {
  274. return err
  275. }
  276. }
  277. return nil
  278. }
  279. func migrateDBFast() error {
  280. var wg sync.WaitGroup
  281. migrations := []struct {
  282. model interface{}
  283. name string
  284. }{
  285. {&Channel{}, "Channel"},
  286. {&Token{}, "Token"},
  287. {&User{}, "User"},
  288. {&PasskeyCredential{}, "PasskeyCredential"},
  289. {&Option{}, "Option"},
  290. {&Redemption{}, "Redemption"},
  291. {&Ability{}, "Ability"},
  292. {&Log{}, "Log"},
  293. {&Midjourney{}, "Midjourney"},
  294. {&TopUp{}, "TopUp"},
  295. {&QuotaData{}, "QuotaData"},
  296. {&Task{}, "Task"},
  297. {&Model{}, "Model"},
  298. {&Vendor{}, "Vendor"},
  299. {&PrefillGroup{}, "PrefillGroup"},
  300. {&Setup{}, "Setup"},
  301. {&TwoFA{}, "TwoFA"},
  302. {&TwoFABackupCode{}, "TwoFABackupCode"},
  303. {&Checkin{}, "Checkin"},
  304. {&SubscriptionOrder{}, "SubscriptionOrder"},
  305. {&UserSubscription{}, "UserSubscription"},
  306. {&SubscriptionPreConsumeRecord{}, "SubscriptionPreConsumeRecord"},
  307. {&CustomOAuthProvider{}, "CustomOAuthProvider"},
  308. {&UserOAuthBinding{}, "UserOAuthBinding"},
  309. {&ChannelPricing{}, "ChannelPricing"},
  310. {&PricingTag{}, "PricingTag"},
  311. }
  312. // 动态计算migration数量,确保errChan缓冲区足够大
  313. errChan := make(chan error, len(migrations))
  314. for _, m := range migrations {
  315. wg.Add(1)
  316. go func(model interface{}, name string) {
  317. defer wg.Done()
  318. if err := DB.AutoMigrate(model); err != nil {
  319. errChan <- fmt.Errorf("failed to migrate %s: %v", name, err)
  320. }
  321. }(m.model, m.name)
  322. }
  323. // Wait for all migrations to complete
  324. wg.Wait()
  325. close(errChan)
  326. // Check for any errors
  327. for err := range errChan {
  328. if err != nil {
  329. return err
  330. }
  331. }
  332. if common.UsingSQLite {
  333. if err := ensureSubscriptionPlanTableSQLite(); err != nil {
  334. return err
  335. }
  336. } else {
  337. if err := DB.AutoMigrate(&SubscriptionPlan{}); err != nil {
  338. return err
  339. }
  340. }
  341. common.SysLog("database migrated")
  342. return nil
  343. }
  344. func migrateLOGDB() error {
  345. var err error
  346. if err = LOG_DB.AutoMigrate(&Log{}); err != nil {
  347. return err
  348. }
  349. return nil
  350. }
  351. type sqliteColumnDef struct {
  352. Name string
  353. DDL string
  354. }
  355. func ensureSubscriptionPlanTableSQLite() error {
  356. if !common.UsingSQLite {
  357. return nil
  358. }
  359. tableName := "subscription_plans"
  360. if !DB.Migrator().HasTable(tableName) {
  361. createSQL := `CREATE TABLE ` + "`" + tableName + "`" + ` (
  362. ` + "`id`" + ` integer,
  363. ` + "`title`" + ` varchar(128) NOT NULL,
  364. ` + "`subtitle`" + ` varchar(255) DEFAULT '',
  365. ` + "`price_amount`" + ` decimal(10,6) NOT NULL,
  366. ` + "`currency`" + ` varchar(8) NOT NULL DEFAULT 'USD',
  367. ` + "`duration_unit`" + ` varchar(16) NOT NULL DEFAULT 'month',
  368. ` + "`duration_value`" + ` integer NOT NULL DEFAULT 1,
  369. ` + "`custom_seconds`" + ` bigint NOT NULL DEFAULT 0,
  370. ` + "`enabled`" + ` numeric DEFAULT 1,
  371. ` + "`sort_order`" + ` integer DEFAULT 0,
  372. ` + "`stripe_price_id`" + ` varchar(128) DEFAULT '',
  373. ` + "`creem_product_id`" + ` varchar(128) DEFAULT '',
  374. ` + "`max_purchase_per_user`" + ` integer DEFAULT 0,
  375. ` + "`upgrade_group`" + ` varchar(64) DEFAULT '',
  376. ` + "`total_amount`" + ` bigint NOT NULL DEFAULT 0,
  377. ` + "`quota_reset_period`" + ` varchar(16) DEFAULT 'never',
  378. ` + "`quota_reset_custom_seconds`" + ` bigint DEFAULT 0,
  379. ` + "`created_at`" + ` bigint,
  380. ` + "`updated_at`" + ` bigint,
  381. PRIMARY KEY (` + "`id`" + `)
  382. )`
  383. return DB.Exec(createSQL).Error
  384. }
  385. var cols []struct {
  386. Name string `gorm:"column:name"`
  387. }
  388. if err := DB.Raw("PRAGMA table_info(`" + tableName + "`)").Scan(&cols).Error; err != nil {
  389. return err
  390. }
  391. existing := make(map[string]struct{}, len(cols))
  392. for _, c := range cols {
  393. existing[c.Name] = struct{}{}
  394. }
  395. required := []sqliteColumnDef{
  396. {Name: "title", DDL: "`title` varchar(128) NOT NULL"},
  397. {Name: "subtitle", DDL: "`subtitle` varchar(255) DEFAULT ''"},
  398. {Name: "price_amount", DDL: "`price_amount` decimal(10,6) NOT NULL"},
  399. {Name: "currency", DDL: "`currency` varchar(8) NOT NULL DEFAULT 'USD'"},
  400. {Name: "duration_unit", DDL: "`duration_unit` varchar(16) NOT NULL DEFAULT 'month'"},
  401. {Name: "duration_value", DDL: "`duration_value` integer NOT NULL DEFAULT 1"},
  402. {Name: "custom_seconds", DDL: "`custom_seconds` bigint NOT NULL DEFAULT 0"},
  403. {Name: "enabled", DDL: "`enabled` numeric DEFAULT 1"},
  404. {Name: "sort_order", DDL: "`sort_order` integer DEFAULT 0"},
  405. {Name: "stripe_price_id", DDL: "`stripe_price_id` varchar(128) DEFAULT ''"},
  406. {Name: "creem_product_id", DDL: "`creem_product_id` varchar(128) DEFAULT ''"},
  407. {Name: "max_purchase_per_user", DDL: "`max_purchase_per_user` integer DEFAULT 0"},
  408. {Name: "upgrade_group", DDL: "`upgrade_group` varchar(64) DEFAULT ''"},
  409. {Name: "total_amount", DDL: "`total_amount` bigint NOT NULL DEFAULT 0"},
  410. {Name: "quota_reset_period", DDL: "`quota_reset_period` varchar(16) DEFAULT 'never'"},
  411. {Name: "quota_reset_custom_seconds", DDL: "`quota_reset_custom_seconds` bigint DEFAULT 0"},
  412. {Name: "created_at", DDL: "`created_at` bigint"},
  413. {Name: "updated_at", DDL: "`updated_at` bigint"},
  414. }
  415. for _, col := range required {
  416. if _, ok := existing[col.Name]; ok {
  417. continue
  418. }
  419. if err := DB.Exec("ALTER TABLE `" + tableName + "` ADD COLUMN " + col.DDL).Error; err != nil {
  420. return err
  421. }
  422. }
  423. return nil
  424. }
  425. // migrateSubscriptionPlanPriceAmount migrates price_amount column from float/double to decimal(10,6)
  426. // This is safe to run multiple times - it checks the column type first
  427. func migrateSubscriptionPlanPriceAmount() {
  428. // SQLite doesn't support ALTER COLUMN, and its type affinity handles this automatically
  429. // Skip early to avoid GORM parsing the existing table DDL which may cause issues
  430. if common.UsingSQLite {
  431. return
  432. }
  433. tableName := "subscription_plans"
  434. columnName := "price_amount"
  435. // Check if table exists first
  436. if !DB.Migrator().HasTable(tableName) {
  437. return
  438. }
  439. // Check if column exists
  440. if !DB.Migrator().HasColumn(&SubscriptionPlan{}, columnName) {
  441. return
  442. }
  443. var alterSQL string
  444. if common.UsingPostgreSQL {
  445. // PostgreSQL: Check if already decimal/numeric
  446. var dataType string
  447. DB.Raw(`SELECT data_type FROM information_schema.columns
  448. WHERE table_name = ? AND column_name = ?`, tableName, columnName).Scan(&dataType)
  449. if dataType == "numeric" {
  450. return // Already decimal/numeric
  451. }
  452. alterSQL = fmt.Sprintf(`ALTER TABLE %s ALTER COLUMN %s TYPE decimal(10,6) USING %s::decimal(10,6)`,
  453. tableName, columnName, columnName)
  454. } else if common.UsingMySQL {
  455. // MySQL: Check if already decimal
  456. var columnType string
  457. DB.Raw(`SELECT COLUMN_TYPE FROM information_schema.columns
  458. WHERE table_schema = DATABASE() AND table_name = ? AND column_name = ?`,
  459. tableName, columnName).Scan(&columnType)
  460. if strings.HasPrefix(strings.ToLower(columnType), "decimal") {
  461. return // Already decimal
  462. }
  463. alterSQL = fmt.Sprintf("ALTER TABLE %s MODIFY COLUMN %s decimal(10,6) NOT NULL DEFAULT 0",
  464. tableName, columnName)
  465. } else {
  466. return
  467. }
  468. if alterSQL != "" {
  469. if err := DB.Exec(alterSQL).Error; err != nil {
  470. common.SysLog(fmt.Sprintf("Warning: failed to migrate %s.%s to decimal: %v", tableName, columnName, err))
  471. } else {
  472. common.SysLog(fmt.Sprintf("Successfully migrated %s.%s to decimal(10,6)", tableName, columnName))
  473. }
  474. }
  475. }
  476. func closeDB(db *gorm.DB) error {
  477. sqlDB, err := db.DB()
  478. if err != nil {
  479. return err
  480. }
  481. err = sqlDB.Close()
  482. return err
  483. }
  484. func CloseDB() error {
  485. if LOG_DB != DB {
  486. err := closeDB(LOG_DB)
  487. if err != nil {
  488. return err
  489. }
  490. }
  491. return closeDB(DB)
  492. }
  493. // checkMySQLChineseSupport ensures the MySQL connection and current schema
  494. // default charset/collation can store Chinese characters. It allows common
  495. // Chinese-capable charsets (utf8mb4, utf8, gbk, big5, gb18030) and panics otherwise.
  496. func checkMySQLChineseSupport(db *gorm.DB) error {
  497. // 仅检测:当前库默认字符集/排序规则 + 各表的排序规则(隐含字符集)
  498. // Read current schema defaults
  499. var schemaCharset, schemaCollation string
  500. err := db.Raw("SELECT DEFAULT_CHARACTER_SET_NAME, DEFAULT_COLLATION_NAME FROM information_schema.SCHEMATA WHERE SCHEMA_NAME = DATABASE()").Row().Scan(&schemaCharset, &schemaCollation)
  501. if err != nil {
  502. return fmt.Errorf("读取当前库默认字符集/排序规则失败 / Failed to read schema default charset/collation: %v", err)
  503. }
  504. toLower := func(s string) string { return strings.ToLower(s) }
  505. // Allowed charsets that can store Chinese text
  506. allowedCharsets := map[string]string{
  507. "utf8mb4": "utf8mb4_",
  508. "utf8": "utf8_",
  509. "gbk": "gbk_",
  510. "big5": "big5_",
  511. "gb18030": "gb18030_",
  512. }
  513. isChineseCapable := func(cs, cl string) bool {
  514. csLower := toLower(cs)
  515. clLower := toLower(cl)
  516. if prefix, ok := allowedCharsets[csLower]; ok {
  517. if clLower == "" {
  518. return true
  519. }
  520. return strings.HasPrefix(clLower, prefix)
  521. }
  522. // 如果仅提供了排序规则,尝试按排序规则前缀判断
  523. for _, prefix := range allowedCharsets {
  524. if strings.HasPrefix(clLower, prefix) {
  525. return true
  526. }
  527. }
  528. return false
  529. }
  530. // 1) 当前库默认值必须支持中文
  531. if !isChineseCapable(schemaCharset, schemaCollation) {
  532. return fmt.Errorf("当前库默认字符集/排序规则不支持中文:schema(%s/%s)。请将库设置为 utf8mb4/utf8/gbk/big5/gb18030 / Schema default charset/collation is not Chinese-capable: schema(%s/%s). Please set to utf8mb4/utf8/gbk/big5/gb18030",
  533. schemaCharset, schemaCollation, schemaCharset, schemaCollation)
  534. }
  535. // 2) 所有物理表的排序规则(隐含字符集)必须支持中文
  536. type tableInfo struct {
  537. Name string
  538. Collation *string
  539. }
  540. var tables []tableInfo
  541. if err := db.Raw("SELECT TABLE_NAME, TABLE_COLLATION FROM information_schema.TABLES WHERE TABLE_SCHEMA = DATABASE() AND TABLE_TYPE = 'BASE TABLE'").Scan(&tables).Error; err != nil {
  542. return fmt.Errorf("读取表排序规则失败 / Failed to read table collations: %v", err)
  543. }
  544. var badTables []string
  545. for _, t := range tables {
  546. // NULL 或空表示继承库默认设置,已在上面校验库默认,视为通过
  547. if t.Collation == nil || *t.Collation == "" {
  548. continue
  549. }
  550. cl := *t.Collation
  551. // 仅凭排序规则判断是否中文可用
  552. ok := false
  553. lower := strings.ToLower(cl)
  554. for _, prefix := range allowedCharsets {
  555. if strings.HasPrefix(lower, prefix) {
  556. ok = true
  557. break
  558. }
  559. }
  560. if !ok {
  561. badTables = append(badTables, fmt.Sprintf("%s(%s)", t.Name, cl))
  562. }
  563. }
  564. if len(badTables) > 0 {
  565. // 限制输出数量以避免日志过长
  566. maxShow := 20
  567. shown := badTables
  568. if len(shown) > maxShow {
  569. shown = shown[:maxShow]
  570. }
  571. return fmt.Errorf(
  572. "存在不支持中文的表,请修复其排序规则/字符集。示例(最多展示 %d 项):%v / Found tables not Chinese-capable. Please fix their collation/charset. Examples (showing up to %d): %v",
  573. maxShow, shown, maxShow, shown,
  574. )
  575. }
  576. return nil
  577. }
  578. var (
  579. lastPingTime time.Time
  580. pingMutex sync.Mutex
  581. )
  582. func PingDB() error {
  583. pingMutex.Lock()
  584. defer pingMutex.Unlock()
  585. if time.Since(lastPingTime) < time.Second*10 {
  586. return nil
  587. }
  588. sqlDB, err := DB.DB()
  589. if err != nil {
  590. log.Printf("Error getting sql.DB from GORM: %v", err)
  591. return err
  592. }
  593. err = sqlDB.Ping()
  594. if err != nil {
  595. log.Printf("Error pinging DB: %v", err)
  596. return err
  597. }
  598. lastPingTime = time.Now()
  599. common.SysLog("Database pinged successfully")
  600. return nil
  601. }