Fix PHP Notice: Array to string conversion in validate.inc.php

Validate::iterate() builds a SQL query that involves an array of WHERE filters.
When this array is empty, it was incorrectly kept as is, thus triggering a PHP
Notice.

Note: this error is not fatal as the following statement is a valid SQL query:
SELECT data, DATE_FORMAT(stamp, "%Y%m%d%H%i%s") FROM requests Array ORDER BY stamp;

diff --git a/include/validations.inc.php b/include/validations.inc.php
index 390e81b..2840965 100644 (file)
--- a/include/validations.inc.php
+++ b/include/validations.inc.php
@@ -440,6 +440,8 @@ abstract class Validate
         }
         if (!empty($where)) {
             $where = 'WHERE ' . implode('AND', $where);
+        } else {
+            $where = '';
         }
         $it = XDB::iterRow('SELECT  data, DATE_FORMAT(stamp, "%Y%m%d%H%i%s")
                               FROM  requests