// Add adds a raster to the database.
func (d *distros) add(ras *jdh.Raster) (string, error) {
id := strconv.FormatInt(d.next, 10)
ras.Id = id
if err := d.validate(ras); err != nil {
return "", err
}
d.addRaster(ras)
d.next++
d.changed = true
return id, nil
}
// Validate validates that a raster is valid in the database, and set some
// canonical values. It returns an error if the raster is not valid.
func (d *distros) validate(ras *jdh.Raster) error {
ras.Id = strings.TrimSpace(ras.Id)
ras.Taxon = strings.TrimSpace(ras.Taxon)
if (len(ras.Id) == 0) || (len(ras.Taxon) == 0) {
return errors.New("raster without identification")
}
if _, ok := d.ids[ras.Id]; ok {
return fmt.Errorf("raster id %s already in use", ras.Id)
}
if !d.db.t.isInDB(ras.Taxon) {
return fmt.Errorf("taxon %s [associated with raster %s] not in dabtase", ras.Taxon, ras.Id)
}
if ras.Cols == 0 {
return fmt.Errorf("raster %s with an invalid number of cols: 0", ras.Id)
}
if ras.Raster == nil {
return fmt.Errorf("raster %s without rasterized data", ras.Id)
}
if ras.Source > jdh.MachineModel {
ras.Source = jdh.UnknownRaster
}
ras.Reference = strings.TrimSpace(ras.Reference)
ext := ras.Extern
ras.Extern = nil
for _, e := range ext {
serv, id, err := jdh.ParseExtern(e)
if err != nil {
continue
}
if len(id) == 0 {
continue
}
add := true
for _, ex := range ras.Extern {
if strings.HasPrefix(ex, serv) {
add = false
break
}
}
if !add {
continue
}
if _, ok := d.ids[e]; !ok {
ras.Extern = append(ras.Extern, e)
}
}
return nil
}