From f9266e884dc2b30d13a0f9529d8e092847cedc66 Mon Sep 17 00:00:00 2001
From: Benjamin Dauvergne <bdauvergne@entrouvert.com>
Date: Mon, 24 Jun 2019 14:47:40 +0200
Subject: [PATCH] csv_import: report line of the first value seen on duplicate
 (#34270)

---
 src/authentic2/csv_import.py | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/authentic2/csv_import.py b/src/authentic2/csv_import.py
index 9a031d43..69b16f61 100644
--- a/src/authentic2/csv_import.py
+++ b/src/authentic2/csv_import.py
@@ -472,7 +472,9 @@ class UserCsvImporter(object):
                 errors.append(
                     Error('unique-constraint-failed',
                           _('Unique constraint on column "%(column)s" failed: '
-                            'value already appear on line %(line)d') % {'column': header.name, 'line': row.line}))
+                            'value already appear on line %(line)d') % {
+                                'column': header.name,
+                                'line': unique_map[unique_key]}))
             else:
                 unique_map[unique_key] = row.line
 
-- 
2.20.1