108 lines
2.2 KiB
Go
108 lines
2.2 KiB
Go
package datastore
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import (
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"fmt"
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"strings"
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"time"
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"github.com/thermokarst/bactdb/models"
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)
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func init() {
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DB.AddTableWithName(models.Species{}, "species").SetKeys(true, "Id")
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}
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type speciesStore struct {
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*Datastore
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}
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func (s *speciesStore) Get(id int64) (*models.Species, error) {
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var species []*models.Species
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if err := s.dbh.Select(&species, `SELECT * FROM species WHERE id=$1;`, id); err != nil {
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return nil, err
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}
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if len(species) == 0 {
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return nil, models.ErrSpeciesNotFound
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}
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return species[0], nil
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}
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func (s *speciesStore) Create(species *models.Species) (bool, error) {
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currentTime := time.Now()
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species.CreatedAt = currentTime
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species.UpdatedAt = currentTime
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if err := s.dbh.Insert(species); err != nil {
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return false, err
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}
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return true, nil
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}
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func (s *speciesStore) List(opt *models.SpeciesListOptions) ([]*models.Species, error) {
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if opt == nil {
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opt = &models.SpeciesListOptions{}
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}
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sql := `SELECT * FROM species`
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var conds []string
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var vals []interface{}
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if opt.Genus != "" {
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conds = append(conds, "genus_id = (SELECT id FROM genera WHERE lower(genus_name) = $1)")
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vals = append(vals, opt.Genus)
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}
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if len(conds) > 0 {
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sql += " WHERE (" + strings.Join(conds, ") AND (") + ")"
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}
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sql += fmt.Sprintf(" LIMIT $%v OFFSET $%v;", len(conds)+1, len(conds)+2)
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vals = append(vals, opt.PerPageOrDefault())
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vals = append(vals, opt.Offset())
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var species []*models.Species
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err := s.dbh.Select(&species, sql, vals...)
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if err != nil {
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return nil, err
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}
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return species, nil
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}
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func (s *speciesStore) Update(id int64, species *models.Species) (bool, error) {
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_, err := s.Get(id)
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if err != nil {
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return false, err
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}
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if id != species.Id {
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return false, models.ErrSpeciesNotFound
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}
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species.UpdatedAt = time.Now()
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changed, err := s.dbh.Update(species)
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if err != nil {
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return false, err
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}
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if changed == 0 {
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return false, ErrNoRowsUpdated
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}
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return true, nil
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}
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func (s *speciesStore) Delete(id int64) (bool, error) {
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species, err := s.Get(id)
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if err != nil {
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return false, err
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}
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deleted, err := s.dbh.Delete(species)
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if err != nil {
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return false, err
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}
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if deleted == 0 {
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return false, ErrNoRowsDeleted
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}
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return true, nil
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}
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