From c9eb8550136faeadbfb886328f7cbc1eac33647f Mon Sep 17 00:00:00 2001
From: Unknown <joshcarter94@icloud.com>
Date: Mon, 8 May 2017 11:51:00 +0100
Subject: [PATCH] Add new methods to check if category flat is enabled

---
 .../Creare/CreareSeoSitemap/Block/Sitemap.php | 31 +++++++++++++++++++
 1 file changed, 31 insertions(+)

diff --git a/app/code/community/Creare/CreareSeoSitemap/Block/Sitemap.php b/app/code/community/Creare/CreareSeoSitemap/Block/Sitemap.php
index a6c6e6b..d914589 100644
--- a/app/code/community/Creare/CreareSeoSitemap/Block/Sitemap.php
+++ b/app/code/community/Creare/CreareSeoSitemap/Block/Sitemap.php
@@ -6,6 +6,7 @@
     protected $store;
     protected $sitemapHelper;
     protected $xmlSitemaps = false;
+    protected $_flatEnabled = array();
 
     public function __construct(array $args)
     {
@@ -20,6 +21,36 @@ public function __construct(array $args)
         parent::__construct($args);
     }
 
+    /**
+     * Retrieve Catalog Product Flat Helper object
+     *
+     * @return Mage_Catalog_Helper_Product_Flat
+     */
+    public function getFlatHelper()
+    {
+        return Mage::helper('catalog/category_flat');
+    }
+
+    /**
+     * Retrieve is flat enabled flag
+     * Return always false if magento run admin
+     *
+     * @return bool
+     */
+    public function isEnabledFlat()
+    {
+        // Flat Data can be used only on frontend
+        if (Mage::app()->getStore()->isAdmin()) {
+            return false;
+        }
+        $storeId = $this->getStoreId();
+        if (!isset($this->_flatEnabled[$storeId])) {
+            $flatHelper = $this->getFlatHelper();
+            $this->_flatEnabled[$storeId] = $flatHelper->isAvailable() && $flatHelper->isBuilt($storeId);
+        }
+        return $this->_flatEnabled[$storeId];
+    }
+
     /**
      * @return Creare_CreareSeoSitemap_Helper_Data
      */