From f19e5e86f4c4221359dd70d346220969ea438e6c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?C=C3=A9dric=20Salvador?= <csalvador@gpcsolutions.fr>
Date: Tue, 30 Jul 2013 17:07:02 +0200
Subject: [PATCH] don't try to create a link when the link input field is empty

---
 htdocs/core/tpl/document_actions.tpl.php | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/htdocs/core/tpl/document_actions.tpl.php b/htdocs/core/tpl/document_actions.tpl.php
index bd26e13672d..8ae243e47d3 100644
--- a/htdocs/core/tpl/document_actions.tpl.php
+++ b/htdocs/core/tpl/document_actions.tpl.php
@@ -7,10 +7,12 @@ if (GETPOST('sendit') && ! empty($conf->global->MAIN_UPLOAD_DOC)) {
 } elseif (GETPOST('linkit') && ! empty($conf->global->MAIN_UPLOAD_DOC)) {
     if ($object->id) {
         $link = GETPOST('link', 'alpha');
-        if (substr($link, 0, 7) != 'http://' && substr($link, 0, 8) != 'https://') {
-            $link = 'http://' . $link;
+        if ($link) {
+            if (substr($link, 0, 7) != 'http://' && substr($link, 0, 8) != 'https://') {
+                $link = 'http://' . $link;
+            }
+            dol_add_file_process($upload_dir, 0, 1, 'userfile', $link);
         }
-        dol_add_file_process($upload_dir, 0, 1, 'userfile', $link);
     }
 }