private function writeModulesIni()
 {
     // Load all sections from an existing config file, while skipping the extends.
     $filename = ZfApplication::$_data_path . '/etc/modules.ini';
     $config = new Zend_Config_Ini($filename, null, array('skipExtends' => true, 'allowModifications' => true));
     $config->production = array();
     $config->setExtend('staging', 'production');
     $config->setExtend('cli', 'production');
     // Modify a value
     $directory = new DirectoryIterator(ZfApplication::$_base_path . "/app");
     $config->production->modules = array();
     foreach ($directory as $dir) {
         $name = strtolower($dir->getFilename());
         if (!$dir->isDot() && $dir->isDir() && !in_array($name[0], array(".", "_"))) {
             $config->production->modules->{$name} = '/app/' . $dir->getFilename() . '/Controllers';
         }
     }
     // Write the config file
     $writer = new Zend_Config_Writer_Ini();
     $writer->write($filename, $config);
 }