Modify sql_concat() to support all elements being numeric. MDL-13823 ; backported from HEAD

2008-04-20 21:20:45 +00:00
parent 4f569a8a67
commit c40ff3464d
1 changed files with 6 additions and 1 deletions
@@ -1666,9 +1666,14 @@ function sql_fullname($firstname='firstname', $lastname='lastname') {
 * @return string
 */
 function sql_concat() {
-    global $db;
+    global $db, $CFG;

    $args = func_get_args();
+/// PostgreSQL requires at least one char element in the concat, let's add it
+/// here (at the beginning of the array) until ADOdb fixes it
+    if ($CFG->dbfamily == 'postgres' && is_array($args)) {
+        array_unshift($args , "''");
+    }
    return call_user_func_array(array($db, 'Concat'), $args);
 }