From 96a54ef4ac60382fe33f596759deb778cdbc5b82 Mon Sep 17 00:00:00 2001
From: thomasb <thomasb@208e9e7b-5314-0410-a742-e7e81cd9613c>
Date: Sat, 14 May 2011 14:38:27 +0000
Subject: Fix sort order when contact name is empty

git-svn-id: https://svn.roundcube.net/trunk@4768 208e9e7b-5314-0410-a742-e7e81cd9613c
---
 roundcubemail/program/include/rcube_mdb2.php | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)

(limited to 'roundcubemail/program/include/rcube_mdb2.php')

diff --git a/roundcubemail/program/include/rcube_mdb2.php b/roundcubemail/program/include/rcube_mdb2.php
index a68d1dd92..02ed17ac2 100644
--- a/roundcubemail/program/include/rcube_mdb2.php
+++ b/roundcubemail/program/include/rcube_mdb2.php
@@ -600,6 +600,32 @@ class rcube_mdb2
         }
     }
 
+    /**
+     * Abstract SQL statement for value concatenation
+     *
+     * @return string SQL statement to be used in query
+     * @access public
+     */
+    function concat(/* col1, col2, ... */)
+    {
+        $func = '';
+        switch($this->db_provider) {
+            case 'mysql':
+            case 'mysqli':
+                $func = 'CONCAT';
+                $delim = ', ';
+                break;
+            case 'mssql':
+            case 'sqlsrv':
+                $delim = ' + ';
+                break;
+            default:
+                $delim = ' || ';
+        }
+        
+        return $func . '(' . join($delim, func_get_args()) . ')';
+    }
+
 
     /**
      * Encodes non-UTF-8 characters in string/array/object (recursive)
-- 
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