97        {
98            $pdoDSN = $config['dbDriver'] . ':dbname=' . $config['dbName'];
99
100            if ($config['dbServer'])
101            {
102                //Server
103                $pdoDSN .= ';host=' . $config['dbServer'];
104            }
105
106            //Connection
107            self::$pdo = new PDO($pdoDSN, $config['dbUser'], $config['dbPassword'], $config['pdoOptions']);
108        }
109        catch (pdoException $pdoException)
110        {
111            self::$benchmarks['connection'] = microtime(true) - self::$benchmarks['connection'];
112            throw $pdoException;
113        }
114
115        self::$benchmarks['connection'] = microtime(true) - self::$benchmarks['connection'];
116        return self::$pdo;
117    }

411    /**
412     * Return results as dbalResult (simple query result).
413     *
414     * @param mixed $columns
415     * @return dbalResult
416     */
417    public function fetchColumns($columns = false)
418    {
419        if (!$columns)
420        {
421            return dbal::query($this->buildStatement(), dbal::select);
422        }
423
424        if (!is_array($columns))
425        {
426            //Columns as argument
427            $columns = func_get_args();
428        }
429
430        return dbal::query($this->buildStatement($columns), dbal::select);
431    }

58        }
59
60    }
61
62    /**
63     * Home page.
64     */
65    public function index()
66    {
67        self::$viewData['slideshow'] = orm::slideshow()->byItemID(0, '!=')->orderBy('position',
68            'DESC')->fetchColumns()->fetchAll();
69    }
70
71    /**
72     * Switching localization.
73     *
74     * @param string $localization
75     * @return void
76     */
77    public function localization($localization = '')
78    {

256            if (!is_callable([$instance, $method])) {
257                if (spiralDebug && !self::$globalConfig['spiral']['forceErrors']) {
258                    throw new spiralException("Unable to call action '$action', uncallable method '$method'.");
259                }
260
261                self::callError('notFound');
262            }
263
264            spiralEvents::callEvent('callAction', $instance);
265
266            $actionResult = call_user_func_array([$instance, $method], $arguments);
267            $actionResult = (string)call_user_func([$instance, 'finishAction'], $actionResult);
268
269            spiralDebug && self::debugMessage("Action '$action' with method '$method' was successfully processed.");
270
271            if (!$parentAction) {
272                //This action was a parent of request, output should finish processing.
273                self::closeOutput($actionResult);
274            }
275
276            /**
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