Setup::__construct PHP Метод

    public function __construct()
    {
        parent::__construct();
        $this->load->model('Setup_model');
        $this->setup_step = $this->uri->segment(1);
        if ($this->setup_step !== 'success' and $this->installer->isInstalled()) {
            redirect('success');
        }
        if ($this->session->tempdata('setup_step') === $this->setup_step) {
            $this->setup_proceed = TRUE;
        }
    }