From 527c15e2c320d411bd79d3bcfcd1a46be45db4e3 Mon Sep 17 00:00:00 2001
From: Ahe <info@andre-herrn.de>
Date: Mon, 11 Nov 2013 12:15:55 +0000
Subject: [PATCH] #200: check for empty categories and categoryTypes in
 observer to prevent warning during auto meta generation

---
 .../FireGento/GermanSetup/Model/Observer.php      | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

diff --git a/src/app/code/community/FireGento/GermanSetup/Model/Observer.php b/src/app/code/community/FireGento/GermanSetup/Model/Observer.php
index 5685b0e..cf7995f 100644
--- a/src/app/code/community/FireGento/GermanSetup/Model/Observer.php
+++ b/src/app/code/community/FireGento/GermanSetup/Model/Observer.php
@@ -152,11 +152,18 @@ public function autogenerateMetaInformation(Varien_Event_Observer $observer)
      * Get the categories of the current product
      *
      * @param  Mage_Catalog_Model_Product $product Product
-     * @return array                      Categories
+     * @return string                              Keywords
      */
     protected function _getCategoryKeywords($product)
     {
         $categories = $product->getCategoryIds();
+
+        //Check for empty categories
+        if (true === empty($categories)) {
+            return array();
+        }
+
+        //If product categories were given fetch their names and build the keyword string
         $categoryArr = $this->_fetchCategoryNames($categories);
         $keywords = $this->_buildKeywords($categoryArr);
 
@@ -221,6 +228,12 @@ protected function _fetchCategoryNames($categories)
     protected function _buildKeywords($categoryTypes)
     {
         $keywords = '';
+
+        //Check for empty category types
+        if (true === empty($categoryTypes)) {
+            return $keywords;
+        }
+
         foreach ($categoryTypes as $categories) {
             $keywords .= implode(', ', $categories);
         }