From ba339a0bfb533db729465b8efecd82f155dc0d2f Mon Sep 17 00:00:00 2001
From: Matt Westcott <matt@west.co.tt>
Date: Thu, 1 May 2014 13:06:20 +0100
Subject: [PATCH] Add @kryton's fix for MySQL support in
 _update_descendant_url_paths, from #215

---
 wagtail/wagtailcore/models.py | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/wagtail/wagtailcore/models.py b/wagtail/wagtailcore/models.py
index 5c9fc0f27a..5d829aac64 100644
--- a/wagtail/wagtailcore/models.py
+++ b/wagtail/wagtailcore/models.py
@@ -312,6 +312,12 @@ class Page(MP_Node, ClusterableModel, Indexed):
                 SET url_path = %s || substr(url_path, %s)
                 WHERE path LIKE %s AND id <> %s
             """
+        elif connection.vendor == 'mysql':
+            update_statement = """
+                UPDATE wagtailcore_page
+                SET url_path= CONCAT(%s, substring(url_path, %s))
+                WHERE path LIKE %s AND id <> %s
+            """
         else:
             update_statement = """
                 UPDATE wagtailcore_page