Idex Funtion

public function index()
    {
        $this->form_validation->set_rules('login_email', 'E-MAIL',
            'required|trim');
        $this->form_validation->set_rules('login_senha', 'SENHA',
            'required|trim');

        if ($this->form_validation->run() == TRUE) {

            $identity = $this->input->post('login_email');
            $password = $this->input->post('login_senha');
            $remember = TRUE; // remember the user

            if ($this->ion_auth->login($identity, $password, $remember)) {
                redirect('admin', 'refresh');
            } else {
                set_msg('msgerro', 'Dados incorretos! Tente novamente.', 'erro');
                redirect('login', 'refresh');
            }
        } else {

            $this->load->view('includes/head');
            $this->load->view('login');
            $this->load->view('includes/footer');
        }
    }