ci-bonfire / Sprint

		if ( ! class_exists('CI_Model', FALSE))

		{

			$app_path = APPPATH.'core'.DIRECTORY_SEPARATOR;

			if (file_exists($app_path.'Model.php'))

			{

				require_once($app_path.'Model.php');

				if ( ! class_exists('CI_Model', FALSE))

				{

					throw new RuntimeException($app_path."Model.php exists, but doesn't declare class CI_Model");

				}

			}

			elseif ( ! class_exists('CI_Model', FALSE))

			{

				require_once(BASEPATH.'core'.DIRECTORY_SEPARATOR.'Model.php');

			}

			$class = config_item('subclass_prefix').'Model';

			if (file_exists($app_path.$class.'.php'))

		$prefix = config_item('subclass_prefix');

		if ( ! class_exists('CI_Session_driver', FALSE))

		{

			require_once(

				file_exists(APPPATH.'libraries/Session/Session_driver.php')

					? APPPATH.'libraries/Session/Session_driver.php'

					: BASEPATH.'libraries/Session/Session_driver.php'

			);

			if (file_exists($file_path = APPPATH.'libraries/Session/'.$prefix.'Session_driver.php'))

			{

				require_once($file_path);

			}

		}

		$class = 'Session_'.$driver.'_driver';