From 53e0cf2f74af236f6121b5aedfd1e06d93902674 Mon Sep 17 00:00:00 2001
From: Lukas Reschke <lukas@owncloud.com>
Date: Thu, 16 Oct 2014 21:45:09 +0200
Subject: [PATCH] Add a try catch block

This function might also be called before ownCloud is setup which results in a PHP fatal error. We therefore should gracefully catch errors in there.
---
 lib/private/app.php | 16 ++++++++++------
 1 file changed, 10 insertions(+), 6 deletions(-)

diff --git a/lib/private/app.php b/lib/private/app.php
index 95a8a7302d..faaadef385 100644
--- a/lib/private/app.php
+++ b/lib/private/app.php
@@ -1101,13 +1101,17 @@ class OC_App {
 			return $versions; // when function is used besides in checkUpgrade
 		}
 		$versions = array();
-		$query = OC_DB::prepare('SELECT `appid`, `configvalue` FROM `*PREFIX*appconfig`'
-			. ' WHERE `configkey` = \'installed_version\'');
-		$result = $query->execute();
-		while ($row = $result->fetchRow()) {
-			$versions[$row['appid']] = $row['configvalue'];
+		try {
+			$query = OC_DB::prepare('SELECT `appid`, `configvalue` FROM `*PREFIX*appconfig`'
+				. ' WHERE `configkey` = \'installed_version\'');
+			$result = $query->execute();
+			while ($row = $result->fetchRow()) {
+				$versions[$row['appid']] = $row['configvalue'];
+			}
+			return $versions;
+		} catch (\Exception $e) {
+			return array();
 		}
-		return $versions;
 	}