/**
  * Load module settings data
  * 
  * @param boolean $forceCreate
  * @return array 
  */
 public static function loadPreferences($forceCreate = FALSE)
 {
     if (!$forceCreate && !empty(self::$preferences)) {
         self::$preferences;
     }
     $ds = DIRECTORY_SEPARATOR;
     $preferenceFilePath = CACHE_DIR . $ds . Fox_Core_Model_Cache::CACHE_CODE_PREFERENCE;
     $fileName = 'preference.xml';
     self::$preferences = array();
     $xDom = new Uni_Data_XDOMDocument();
     $cacheSettings = Uni_Core_CacheManager::loadCacheSettings();
     $isCacheEnabled = isset($cacheSettings[Fox_Core_Model_Cache::CACHE_CODE_PREFERENCE]) ? $cacheSettings[Fox_Core_Model_Cache::CACHE_CODE_PREFERENCE] : FALSE;
     if ($forceCreate || !$isCacheEnabled || !file_exists($preferenceFilePath . $ds . $fileName)) {
         if (!file_exists($preferenceFilePath)) {
             if (!@mkdir($preferenceFilePath, 0777, TRUE)) {
                 throw new Exception('"' . $preferenceFilePath . '" not found');
             }
         }
         $xDom->preserveWhiteSpace = false;
         $xDom->formatOutput = true;
         $preferenceModel = Fox::getModel('core/preference');
         $collection = $preferenceModel->getCollection();
         $root = $xDom->createElement('preferences');
         foreach ($collection as $preference) {
             self::$preferences[$preference['name']] = $preference['value'];
             $cData = $xDom->createCDATASection('');
             $cData->appendData($preference['value']);
             $entry = $xDom->createElement('entry');
             $entry->setAttribute('key', $preference['name']);
             $root->appendChild($entry);
             $entry->appendChild($cData);
         }
         $xDom->appendChild($root);
         $doc = $xDom->save($preferenceFilePath . $ds . $fileName);
         @chmod($preferenceFilePath, 0777);
     } else {
         $xDom->load($preferenceFilePath . $ds . $fileName);
         if ($xDom->documentElement->hasChildNodes()) {
             $nodeList = $xDom->documentElement->childNodes;
             foreach ($nodeList as $n) {
                 if ($n->nodeType == XML_ELEMENT_NODE && ($key = $n->getAttribute('key'))) {
                     self::$preferences[$key] = $n->nodeValue;
                 }
             }
         }
     }
     unset($xDom);
     return self::$preferences;
 }
 /**
  * Creates cache settings
  * @return void
  */
 public static function createCacheSettings()
 {
     self::$cacheArr = array();
     $cacheDoc = new Uni_Data_XDOMDocument();
     $cacheDoc->preserveWhiteSpace = FALSE;
     $cacheDoc->formatOutput = TRUE;
     $ds = DIRECTORY_SEPARATOR;
     $cacheSettingsPath = CACHE_DIR . $ds . 'cache.settings';
     $cacheModel = Fox::getModel('core/cache');
     $collection = $cacheModel->getCollection();
     $root = $cacheDoc->createElement('cache');
     foreach ($collection as $row) {
         self::$cacheArr[$row['cache_code']] = $row['status'];
         $cData = $cacheDoc->createCDATASection('');
         $cData->appendData($row['status']);
         $entry = $cacheDoc->createElement('entry');
         $entry->setAttribute('key', $row['cache_code']);
         $root->appendChild($entry);
         $entry->appendChild($cData);
     }
     $cacheDoc->appendChild($root);
     $cacheDoc->save($cacheSettingsPath);
 }