/**
  * list more items
  * will be executed on clicking on more
  *
  * @return void
  */
 public function listmoreAction()
 {
     // load current settings
     $settingsModel = new application_models_settings();
     $currentSettings = array();
     foreach ($settingsModel->fetchAll() as $setting) {
         $currentSettings[$setting->name] = $setting->value;
     }
     // read settings
     $settings = $this->getRequest()->getParams();
     $settings = array_merge($currentSettings, $settings);
     // get items
     $result = $this->listItems($settings);
     // show items
     $this->_helper->json($result);
 }
 /**
  * reads settings from database
  *
  * @return value for this setting
  * @param name the name of the setting
  * @param default the default value of this setting
  */
 protected function initializeSessionValue($name, $default)
 {
     // get database settings object
     $settings = new application_models_settings();
     // get value from database
     $result = $settings->fetchAll($settings->select()->where('name=?', $name));
     // value found?
     if ($result->count() > 0) {
         return $result->current()->value;
         // value not found
     } else {
         // save default value in database
         $settings->insert(array('name' => $name, 'value' => $default));
         // return default value
         return $default;
     }
 }