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