Pagekit\Installer\Installer::check PHP Метод

    public function check($config)
    {
        $status = 'no-connection';
        $message = '';
        try {
            try {
                if (!$this->config) {
                    foreach ($config as $name => $values) {
                        if ($module = $this->app->module($name)) {
                            $module->config = Arr::merge($module->config, $values);
                        }
                    }
                }
                $this->app->db()->connect();
                if ($this->app->db()->getUtility()->tableExists('@system_config')) {
                    $status = 'tables-exist';
                    $message = __('Existing Pagekit installation detected. Choose different table prefix?');
                } else {
                    $status = 'no-tables';
                }
            } catch (ConnectionException $e) {
                if ($e->getPrevious()->getCode() == 1049) {
                    $this->createDatabase();
                    $status = 'no-tables';
                } else {
                    throw $e;
                }
            }
        } catch (\Exception $e) {
            $message = __('Database connection failed!');
            if ($e->getCode() == 1045) {
                $message = __('Database access denied!');
            }
        }
        return ['status' => $status, 'message' => $message];
    }