From 01be15d6548ccef800d40af127220dc3cdff667c Mon Sep 17 00:00:00 2001
From: mark_story <mark@mark-story.com>
Date: Mon, 16 Dec 2013 14:42:21 -0500
Subject: [PATCH] Don't always wipe a Model's _schema property when calling
 setSource()

Only wipe the internal schema cache if listSources() returned a useful
list of sources. Otherwise retain the old schema. This lets datasources
that don't implement listSources to be combined with models that define
static schema properties.

Fixes #2467
---
 lib/Cake/Model/Model.php | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/lib/Cake/Model/Model.php b/lib/Cake/Model/Model.php
index b79db9347..970b63b12 100644
--- a/lib/Cake/Model/Model.php
+++ b/lib/Cake/Model/Model.php
@@ -1140,7 +1140,9 @@ class Model extends Object implements CakeEventListener {
 				));
 			}
 
-			$this->_schema = null;
+			if ($sources) {
+				$this->_schema = null;
+			}
 		}
 
 		$this->table = $this->useTable = $tableName;