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bactdb/datastore/species.go
2014-11-02 20:48:10 -09:00

87 lines
1.8 KiB
Go

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