evcc-io/core/db/db.go
2022-11-28 10:22:51 +01:00

53 lines
965 B
Go

package db
import (
"time"
serverdb "github.com/evcc-io/evcc/server/db"
"github.com/evcc-io/evcc/util"
"gorm.io/gorm"
)
// DB is a SQL database storage service
type DB struct {
log *util.Logger
db *gorm.DB
name string
}
type Database interface {
Session(startEnergy float64) *Session
Persist(session interface{})
}
// New creates a database storage driver
func New(name string) (*DB, error) {
db := &DB{
log: util.NewLogger("db"),
db: serverdb.Instance,
name: name,
}
return db, nil
}
// Session creates a charging session
func (s *DB) Session(meter float64) *Session {
t := Session{
Loadpoint: s.name,
Created: time.Now(),
MeterStart: meter,
}
return &t
}
// Persist creates or updates a transaction in the database
func (s *DB) Persist(session interface{}) {
// TODO remove
s.log.DEBUG.Printf("persist: %+v", session)
if err := s.db.Save(session).Error; err != nil {
s.log.ERROR.Printf("persist: %v", err)
}
}