36 lines
841 B
Go
36 lines
841 B
Go
package postgres
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import (
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"errors"
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"fmt"
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"gis/internal/domain"
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"github.com/jackc/pgx/v5"
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"github.com/jackc/pgx/v5/pgconn"
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)
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// mapError translates pgx/Postgres errors into domain sentinel errors so the
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// service and transport layers stay decoupled from the driver.
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func mapError(err error) error {
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if err == nil {
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return nil
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}
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if errors.Is(err, pgx.ErrNoRows) {
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return domain.ErrNotFound
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}
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var pgErr *pgconn.PgError
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if errors.As(err, &pgErr) {
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switch pgErr.Code {
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case "23503": // foreign_key_violation
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return fmt.Errorf("%w: %s", domain.ErrConflict, pgErr.ConstraintName)
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case "23505": // unique_violation
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return fmt.Errorf("%w: %s", domain.ErrConflict, pgErr.ConstraintName)
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case "23514": // check_violation
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return fmt.Errorf("%w: %s", domain.ErrValidation, pgErr.ConstraintName)
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}
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}
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return err
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}
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