From 6bd2e32615250def5affbd8a0b8e5531433106dc Mon Sep 17 00:00:00 2001
From: Frederic Guillot <contact@fredericguillot.com>
Date: Tue, 16 Jul 2013 19:28:20 -0400
Subject: [PATCH] Remove PHP warning when there is no items to remove

---
 model.php | 19 +++++++++++--------
 1 file changed, 11 insertions(+), 8 deletions(-)

diff --git a/model.php b/model.php
index 3a590f6..713062b 100644
--- a/model.php
+++ b/model.php
@@ -577,16 +577,19 @@ function update_items($feed_id, array $items)
 
         // Keep a buffer of 2 items
         // It's workaround for buggy feeds (cache issue with some Wordpress plugins)
-        $items_to_remove = array_slice($removed_items, 2);
+        if (is_array($removed_items)) {
 
-        if (! empty($items_to_remove)) {
+            $items_to_remove = array_slice($removed_items, 2);
 
-            \PicoTools\singleton('db')
-                ->table('items')
-                ->in('id', $items_to_remove)
-                ->eq('status', 'removed')
-                ->eq('feed_id', $feed_id)
-                ->remove();
+            if (! empty($items_to_remove)) {
+
+                \PicoTools\singleton('db')
+                    ->table('items')
+                    ->in('id', $items_to_remove)
+                    ->eq('status', 'removed')
+                    ->eq('feed_id', $feed_id)
+                    ->remove();
+            }
         }
     }