Phalcon extended view

gistfile1.php

<?php
/**
 * ViewCascade.php 2014-07-23 20:31
 * ----------------------------------------------
 *
 *
 * @author      Stanislav Kiryukhin <korsar.zn@gmail.com>
 * @copyright   Copyright (c) 2014, CKGroup.ru
 *
 * @version     0.0.1
 * ----------------------------------------------
 * All Rights Reserved.
 * ----------------------------------------------
 */


use Phalcon\Mvc\View\Exception;
use Phalcon\Mvc\View;


/**
 * Class ViewCascade
 *
 * <code>
 *      $view = new ViewCascade();
 *      $view->addViewsDir(__FOLDER_SOME_1);
 *      $view->addViewsDir(__FOLDER_SOME_2);
 *      $view->addViewsDir(__FOLDER_SOME_3);
 *
 *      // Render template found in one of the folders as they are added.
 *      $view->render()
 *
 * </code>
 */
class ViewCascade extends View
{
	protected $_viewsDirs;

	/**
	 * @var
	 */
	protected $_eventsManager;

	/**
	 * @param $path
	 *
	 * @return $this
	 */
	public function addViewsDir($path)
	{
		$this->_viewsDirs[] = $path;
		$this->setViewsDir($path);

		return $this;
	}

	/**
	 * @param $view
	 * @param array $vars
	 *
	 * @return string
	 */
	public function getPartial($view, $vars = [])
	{
		ob_start();

		$this->partial($view, $vars);

		$content = ob_get_contents();
		ob_end_clean();

		return $content;
	}


	/**
	 * Checks whether view exists on registered extensions and render it
	 *
	 * @param array $engines
	 * @param string $viewPath
	 * @param boolean $silence
	 * @param boolean $mustClean
	 * @param \Phalcon\Cache\BackendInterface $cache
	 *
	 * @throws \Phalcon\Mvc\View\Exception
	 */
	protected function _engineRender($engines, $viewPath, $silence, $mustClean, $cache = null)
	{
		if (is_object($cache)) {
			//TODO: add implements for cache...
			throw new Exception('Cache view not supported...');
			return;
		}

        $viewsDirs = is_array($this->_viewsDirs) ? array_reverse($this->_viewsDirs) : [$this->_viewsDir];

		$notExists = true;
		$viewEnginePath = null;

		foreach ($engines as $extension => $engine) {

			foreach ($viewsDirs as $viewsDir) {

				$viewsDirPath 	= $this->_basePath . $viewsDir . $viewPath;
				$viewEnginePath	= $viewsDirPath . $extension;

				if (is_file($viewEnginePath)) {

					if (is_object($this->_eventsManager)) {
						$this->_activeRenderPath = $viewEnginePath;

						if($this->_eventsManager->fire('view:beforeRenderView', $this, $viewEnginePath) === false) {
							break;
						}

					}

					$engine->render($viewEnginePath, $this->_viewParams, $mustClean);

					if (is_object($this->_eventsManager)) {
                        $this->_eventsManager->fire('view:afterRenderView', $this);
                    }

					$notExists = false;
					break 2;
				}
			}
		}

		if ($notExists) {

			/**
			 * Notify about not found views
			 */
			if (is_object($this->_eventsManager)) {
				$this->_activeRenderPath = $viewEnginePath;
				$this->_eventsManager->fire('view:notFoundView', $this);
			}

			if (!$silence) {
				$exceptionMessage = 'View "'.($viewPath).'" was not found in the views directories';

				throw new Exception($exceptionMessage);
				return;
			}
		}
	}
}