95 lines
2.1 KiB
Go
95 lines
2.1 KiB
Go
package datastore
|
|
|
|
import (
|
|
"strings"
|
|
"time"
|
|
|
|
"github.com/thermokarst/bactdb/models"
|
|
)
|
|
|
|
func init() {
|
|
DB.AddTableWithName(models.GenusBase{}, "genera").SetKeys(true, "Id")
|
|
}
|
|
|
|
type generaStore struct {
|
|
*Datastore
|
|
}
|
|
|
|
func (s *generaStore) Get(id int64) (*models.Genus, error) {
|
|
var genus models.Genus
|
|
err := s.dbh.SelectOne(&genus, `SELECT g.*, array_agg(s.id) AS species FROM genera g LEFT OUTER JOIN species s ON s.genus_id=g.id WHERE g.id=$1 GROUP BY g.id;`, id)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
if &genus == nil {
|
|
return nil, models.ErrGenusNotFound
|
|
}
|
|
return &genus, nil
|
|
}
|
|
|
|
func (s *generaStore) Create(genus *models.Genus) (bool, error) {
|
|
currentTime := time.Now()
|
|
genus.CreatedAt = currentTime
|
|
genus.UpdatedAt = currentTime
|
|
// Ugly --- extract embedded struct
|
|
base := genus.GenusBase
|
|
if err := s.dbh.Insert(base); err != nil {
|
|
if strings.Contains(err.Error(), `violates unique constraint "genus_idx"`) {
|
|
return false, err
|
|
}
|
|
}
|
|
genus.Id = base.Id
|
|
return true, nil
|
|
}
|
|
|
|
func (s *generaStore) List(opt *models.GenusListOptions) ([]*models.Genus, error) {
|
|
if opt == nil {
|
|
opt = &models.GenusListOptions{}
|
|
}
|
|
var genera []*models.Genus
|
|
err := s.dbh.Select(&genera, `SELECT g.*, array_agg(s.id) AS species FROM genera g LEFT OUTER JOIN species s ON s.genus_id=g.id GROUP BY g.id LIMIT $1 OFFSET $2;`, opt.PerPageOrDefault(), opt.Offset())
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
return genera, nil
|
|
}
|
|
|
|
func (s *generaStore) Update(id int64, genus *models.Genus) (bool, error) {
|
|
_, err := s.Get(id)
|
|
if err != nil {
|
|
return false, err
|
|
}
|
|
|
|
if id != genus.Id {
|
|
return false, models.ErrGenusNotFound
|
|
}
|
|
|
|
genus.UpdatedAt = time.Now()
|
|
|
|
changed, err := s.dbh.Update(genus.GenusBase)
|
|
if err != nil {
|
|
return false, err
|
|
}
|
|
|
|
if changed == 0 {
|
|
return false, ErrNoRowsUpdated
|
|
}
|
|
|
|
return true, nil
|
|
}
|
|
|
|
func (s *generaStore) Delete(id int64) (bool, error) {
|
|
genus, err := s.Get(id)
|
|
if err != nil {
|
|
return false, err
|
|
}
|
|
|
|
deleted, err := s.dbh.Delete(genus.GenusBase)
|
|
if err != nil {
|
|
return false, err
|
|
}
|
|
if deleted == 0 {
|
|
return false, ErrNoRowsDeleted
|
|
}
|
|
return true, nil
|
|
}
|