package datastore import ( "time" "github.com/thermokarst/bactdb/models" ) func init() { DB.AddTableWithName(models.Observation{}, "observations").SetKeys(true, "Id") } type observationsStore struct { *Datastore } func (s *observationsStore) Get(id int64) (*models.Observation, error) { var observation []*models.Observation if err := s.dbh.Select(&observation, `SELECT * FROM observations WHERE id=$1;`, id); err != nil { return nil, err } if len(observation) == 0 { return nil, models.ErrObservationNotFound } return observation[0], nil } func (s *observationsStore) Create(observation *models.Observation) (bool, error) { currentTime := time.Now() observation.CreatedAt = currentTime observation.UpdatedAt = currentTime if err := s.dbh.Insert(observation); err != nil { return false, err } return true, nil } func (s *observationsStore) List(opt *models.ObservationListOptions) ([]*models.Observation, error) { if opt == nil { opt = &models.ObservationListOptions{} } var observations []*models.Observation err := s.dbh.Select(&observations, `SELECT * FROM observations LIMIT $1 OFFSET $2;`, opt.PerPageOrDefault(), opt.Offset()) if err != nil { return nil, err } return observations, nil } func (s *observationsStore) Update(id int64, observation *models.Observation) (bool, error) { _, err := s.Get(id) if err != nil { return false, err } if id != observation.Id { return false, models.ErrObservationNotFound } observation.UpdatedAt = time.Now() changed, err := s.dbh.Update(observation) if err != nil { return false, err } if changed == 0 { return false, ErrNoRowsUpdated } return true, nil } func (s *observationsStore) Delete(id int64) (bool, error) { observation, err := s.Get(id) if err != nil { return false, err } deleted, err := s.dbh.Delete(observation) if err != nil { return false, err } if deleted == 0 { return false, ErrNoRowsDeleted } return true, nil }