60 lines
1.3 KiB
Go
60 lines
1.3 KiB
Go
package data
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import (
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"database/sql"
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"fmt"
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"gorm.io/driver/mysql"
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"gorm.io/gorm"
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"gorm.io/gorm/logger"
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"time"
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"voucher/internal/conf"
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)
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type GormDb struct {
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Client *gorm.DB
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}
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func NewGormDb(c *conf.Bootstrap) (*GormDb, func()) {
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db1, mf := db(c.Data.Db)
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cleanup := func() {
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mf()
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}
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return &GormDb{
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Client: db1,
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}, cleanup
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}
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func db(data *conf.Data_Database) (*gorm.DB, func()) {
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mysqlConn, err := sql.Open(data.Driver, data.Source)
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gormDB, err := gorm.Open(
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mysql.New(mysql.Config{Conn: mysqlConn}),
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&gorm.Config{Logger: logger.Default.LogMode(logger.Info)},
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)
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if err != nil {
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panic("failed to connect database " + err.Error())
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}
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sqlDB, err := gormDB.DB()
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if err != nil {
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panic("failed to gormDB " + err.Error())
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}
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// SetMaxIdleConns sets the maximum number of connections in the idle connection pool.
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sqlDB.SetMaxIdleConns(int(data.MaxIdle))
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// SetMaxOpenConns sets the maximum number of openapi connections to the database.
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sqlDB.SetMaxOpenConns(int(data.MaxOpen))
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// SetConnMaxLifetime sets the maximum amount of time a connection may be reused.
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sqlDB.SetConnMaxLifetime(time.Hour)
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return gormDB, func() {
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if mysqlConn != nil {
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fmt.Println("关闭 db")
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if err := mysqlConn.Close(); err != nil {
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fmt.Printf("关闭 db 失败：%v", err)
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}
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}
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}
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}
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