38 lines
1.1 KiB
Go
38 lines
1.1 KiB
Go
package platform
|
|
|
|
import (
|
|
"context"
|
|
"encoding/json"
|
|
"fmt"
|
|
|
|
"github.com/Gleipnir-Technology/bob"
|
|
"github.com/Gleipnir-Technology/bob/dialect/psql"
|
|
"github.com/Gleipnir-Technology/bob/dialect/psql/sm"
|
|
"github.com/Gleipnir-Technology/nidus-sync/db"
|
|
"github.com/paulmach/orb/geojson"
|
|
"github.com/rs/zerolog/log"
|
|
"github.com/stephenafamo/scan"
|
|
)
|
|
|
|
func ParcelEnvelope(ctx context.Context, parcel_id int32) (*geojson.Polygon, error) {
|
|
type _Row struct {
|
|
Envelope string `db:"st_asgeojson"`
|
|
}
|
|
row, err := bob.One(ctx, db.PGInstance.BobDB, psql.Select(
|
|
sm.Columns(
|
|
psql.F("ST_AsGeoJSON", psql.F("ST_Envelope", psql.Raw("geometry")))(),
|
|
),
|
|
sm.From("parcel"),
|
|
sm.Where(psql.Quote("id").EQ(psql.Arg(parcel_id))),
|
|
), scan.StructMapper[_Row]())
|
|
if err != nil {
|
|
return nil, fmt.Errorf("query parcel: %w", err)
|
|
}
|
|
var polygon geojson.Polygon
|
|
log.Info().Str("envelope", row.Envelope).Msg("about to unmarshal")
|
|
err = json.Unmarshal([]byte(row.Envelope), &polygon)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("unmarshal json: %w", err)
|
|
}
|
|
return &polygon, nil
|
|
}
|