ContentRoute.php

<?php

namespace components\routes;

use yii\web\UrlRule;
use \app\models\Content;
use Yii;

/**
 * @author Rom <rommcr@gmail.com>
 */
class ContentRoute extends UrlRule
{

    static $content;

    public function init()
    {
        parent::init();
        self::$content = Content::find()->indexBy('alias')->all();
    }

    public function parseRequest($manager, $request)
    {
        if ($this->mode === self::CREATION_ONLY) {
            return false;
        }

        if (!empty($this->verb) && !in_array($request->getMethod(), $this->verb,true)) {
            return false;
        }

        $pathInfo = $request->getPathInfo();
        $suffix = (string) ($this->suffix === null ? $manager->suffix : $this->suffix);
        if ($suffix !== '' && $pathInfo !== '') {
            $n = strlen($suffix);
            if (substr_compare($pathInfo, $suffix, -$n, $n) === 0) {
                $pathInfo = substr($pathInfo, 0, -$n);
                if ($pathInfo === '') {
                    // suffix alone is not allowed
                    return false;
                }
            } else {
                return false;
            }
        }

        if ($this->host !== null) {
            $pathInfo = strtolower($request->getHostInfo()) . ($pathInfo === '' ? '' : '/' . $pathInfo);
        }

        if (!preg_match($this->pattern, $pathInfo, $matches)) {
            return false;
        }

        foreach ($this->defaults as $name => $value) {
            if (!isset($matches[$name]) || $matches[$name] === '') {
                $matches[$name] = $value;
            }
        }

        $content = Content::findOne(['path' => $matches['route']]);
        if (!$content) {
            return false;
        }

        return [$this->route,
            ['alias' => $content->alias]];
    }

    public function createUrl($manager, $route, $params)
    {
        if (!array_key_exists('alias', $params)) {
            return false;
        }

        $data = array_key_exists($params['alias'], self::$content) ? self::$content[$params['alias']] : false;
        if ($data) {
            return $data['path'] . '/';
        }
        return parent::createUrl($manager, $route, $params);
    }

}