/
db.go
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/
db.go
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package dao
import (
"crypto/rsa"
"fmt"
"github.com/jinzhu/gorm"
// mysql dialects
_ "github.com/jinzhu/gorm/dialects/mysql"
"github.com/iotexproject/iotex-hermes/cmd/key"
"github.com/iotexproject/iotex-hermes/util"
)
var db *gorm.DB
var privateKey *rsa.PrivateKey
var publicKey *rsa.PublicKey
// ConnectDatabase connect database
func ConnectDatabase() error {
var err error
db, err = gorm.Open("mysql", util.MustFetchNonEmptyParam("DB_CONN"))
if err != nil {
return fmt.Errorf("open database error: %v", err)
}
db.AutoMigrate(&DropRecord{})
privateKey, err = key.LoadPrivateKey(util.MustFetchNonEmptyParam("RSA_PRIVATE"))
if err != nil {
return fmt.Errorf("load private key error: %v", err)
}
publicKey, err = key.LoadPublicKey(util.MustFetchNonEmptyParam("RSA_PUBLIC"))
if err != nil {
return fmt.Errorf("load public key error: %v", err)
}
return nil
}
// Transaction begin transaction
func Transaction() *gorm.DB {
return db.Begin()
}
// DB export db
func DB() *gorm.DB {
return db
}