From 4b0787147f17e58733256451f6b91116ea2a6f4e Mon Sep 17 00:00:00 2001
From: Uwe Steinmann <steinm@debian.org>
Date: Wed, 6 Jul 2016 09:00:56 +0200
Subject: [PATCH] check if cache dir exists before deleting it

---
 SeedDMS_Preview/Preview/Previewer.php | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/SeedDMS_Preview/Preview/Previewer.php b/SeedDMS_Preview/Preview/Previewer.php
index 6a466adbe..51f2bbdd1 100644
--- a/SeedDMS_Preview/Preview/Previewer.php
+++ b/SeedDMS_Preview/Preview/Previewer.php
@@ -383,7 +383,11 @@ class SeedDMS_Preview_Previewer {
 			return false;
 
 		$dir = $this->previewDir.'/'.$document->getDir();
-		return SeedDMS_Preview_Previewer::recurseRmdir($dir);
+		if(file_exists($dir) && is_dir($dir)) {
+			return SeedDMS_Preview_Previewer::recurseRmdir($dir);
+		} else {
+			return false;
+		}
 
 	} /* }}} */
 }