Mercurial > gemma

comparison pkg/imports/errors.go @ 2548:6b34d0fb4498

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Improve user facing error messages for stretch area generation
author Tom Gottfried <tom@intevation.de>
date Thu, 07 Mar 2019 20:03:43 +0100
parents
children 1cb6676d1510
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2547:5afca5bc1d7a 2548:6b34d0fb4498
1 // This is Free Software under GNU Affero General Public License v >= 3.0
2 // without warranty, see README.md and license for details.
3 //
4 // SPDX-License-Identifier: AGPL-3.0-or-later
5 // License-Filename: LICENSES/AGPL-3.0.txt
6 //
7 // Copyright (C) 2019 by via donau
8 // – Österreichische Wasserstraßen-Gesellschaft mbH
9 // Software engineering by Intevation GmbH
10 //
11 // Author(s):
12 // * Tom Gottfried <tom.gottfried@intevation.de>
13
14 package imports
15
16 import (
17 "strings"
18
19 "github.com/jackc/pgx"
20 )
21
22 func handleError(err error) error {
23 switch e := err.(type) {
24 case pgx.PgError:
25 return dbError(e)
26 }
27 return err
28 }
29
30 // Handle PostgreSQL error codes
31 const (
32 noDataFound = "P0002"
33 )
34
35 type dbError pgx.PgError
36
37 func (err dbError) Error() string {
38 switch err.Code {
39 case noDataFound:
40 // Most recent line from stacktrace contains name of failed function
41 recent := strings.SplitN(err.Where, "\n", 1)[0]
42 switch {
43 case strings.Contains(recent, "isrsrange_points"):
44 return "No distance mark found for at least one given ISRS Location Code"
45 case strings.Contains(recent, "isrsrange_axis"):
46 return "No contiguous axis found between given ISRS Location Codes"
47 }
48 }
49 return "Unexpected database error: " + err.Message
50 }