88 lines
1.6 KiB
Go
88 lines
1.6 KiB
Go
package database
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import (
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"app/internal/dal"
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"log"
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"os"
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"sync"
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"time"
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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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)
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var (
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db *gorm.DB
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once sync.Once
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)
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const Path = "database.db"
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func initialize() error {
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var err error
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newLogger := logger.New(
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log.New(os.Stdout, "\r\n", log.LstdFlags), // io writer
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logger.Config{
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SlowThreshold: time.Second, // Slow SQL threshold
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LogLevel: logger.Info, // Log level
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IgnoreRecordNotFoundError: false, // Ignore ErrRecordNotFound error for logger
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ParameterizedQueries: false, // Don't include params in the SQL log
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Colorful: true, // Disable color
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},
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)
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db, err = gorm.Open(sqlite.Open("file:"+Path+"?_fk=1"), &gorm.Config{
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Logger: newLogger,
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FullSaveAssociations: false,
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})
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if err != nil {
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return err
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}
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if res := db.Exec(`PRAGMA foreign_keys = ON`); res.Error != nil {
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return res.Error
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}
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if err := limitConnectionPool(); err != nil {
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return err
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}
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dal.SetDefault(db)
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log.Println("Initialized database")
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return nil
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}
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func limitConnectionPool() error {
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sqlDB, err := db.DB()
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if err != nil {
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return err
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}
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sqlDB.SetMaxIdleConns(10)
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sqlDB.SetMaxOpenConns(100)
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sqlDB.SetConnMaxLifetime(time.Hour)
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return nil
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}
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func Shutdown() error {
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db, err := db.DB()
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if err != nil {
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return err
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}
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err = db.Close()
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if err != nil {
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return err
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}
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once = sync.Once{}
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return nil
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}
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func GetInstance() *gorm.DB {
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once.Do(func() {
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err := initialize()
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if err != nil {
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panic(err)
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}
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})
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return db
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}
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