# HG changeset patch
# User Tom Gottfried <tom@intevation.de>
# Date 1558712717 -7200
# Node ID aa3c83fb7018c0d123d7a5d484638c46d50584e6
# Parent  870812d8f2479e0284ec824d20b0ee5fe0fc39e0
Validate temporal validity of gauges on import

Since we need the time range to identify gauge versions in the
WHERE-clause of the first statement, validate before it touches the
database to avoid a quite unspecific error due to invalid range input.

diff -r 870812d8f247 -r aa3c83fb7018 pkg/imports/wg.go
--- a/pkg/imports/wg.go	Fri May 24 15:32:47 2019 +0200
+++ b/pkg/imports/wg.go	Fri May 24 17:45:17 2019 +0200
@@ -235,6 +235,13 @@
 			gauges = append(gauges, isrs)
 			feedback.Info("Processing %s", code)
 
+			// We need a valid time range to identify gauge versions in DB
+			if time.Time(*dr.Enddate).Before(time.Time(*dr.Startdate)) {
+				feedback.Warn("End date before start date. Ignored")
+				unchanged++
+				continue
+			}
+
 			var from, to sql.NullInt64
 
 			if dr.Applicabilityfromkm != nil {