func GetDb() *gorm.DB {
	if db == nil {
		InitDB()
	}
	return db
}
// GetDb is a signal DB
GetDb is a signal DB
// GetDb is a signal DB
func GetDb() *gorm.DB {
	if db == nil {
		InitDB()
	}
	return db
}
func GetDb ( ) * gorm . DB { if db == nil { InitDB ( ) } return db }
GetDb is a signal DB
GetDb is a signal DB