function meals()
    {
        if ($this->session->userdata('librarian_login') != 1)
            redirect(base_url(), 'refresh');

        $page_data['page_name']  = 'meals';
        $page_data['page_title'] = 'Cadápio Ativo';
        $this->load->view('backend/index', $page_data);
    }

    function print_meal($meal)
    {
      $page_data['system_name'] = $this->db->get_where('settings', array('type' => 'system_name'))->row()->description;
      $page_data['meal_id'] = $meal;
      $this->load->view('backend/librarian/print_meal', $page_data);
    }

    function meals_view()
    {
        if ($this->session->userdata('librarian_login') != 1)
            redirect(base_url(), 'refresh');

        $page_data['page_name']  = 'meals_view';
        $page_data['page_title'] = 'Histórico dos Cardápios';
        $this->load->view('backend/index', $page_data);
    }

    function add_meal($publish) {
      if ($this->session->userdata('librarian_login') != 1)
        redirect('login', 'refresh');

      $data['start_at'] = $_POST['start_at'];
      $data['end_at'] = $_POST['end_at'];
      $data['morning_monday'] = $_POST['morning_monday'];
      $data['morning_tuesday'] = $_POST['morning_tuesday'];
      $data['morning_wednesday'] = $_POST['morning_wednesday'];
      $data['morning_thursday'] = $_POST['morning_thursday'];
      $data['morning_friday'] = $_POST['morning_friday'];
      $data['lunch_monday'] = $_POST['lunch_monday'];
      $data['lunch_tuesday'] = $_POST['lunch_tuesday'];
      $data['lunch_wednesday'] = $_POST['lunch_wednesday'];
      $data['lunch_thursday'] = $_POST['lunch_thursday'];
      $data['lunch_friday'] = $_POST['lunch_friday'];
      $data['afternoon_monday'] = $_POST['afternoon_monday'];
      $data['afternoon_tuesday'] = $_POST['afternoon_tuesday'];
      $data['afternoon_wednesday'] = $_POST['afternoon_wednesday'];
      $data['afternoon_thursday'] = $_POST['afternoon_thursday'];
      $data['afternoon_friday'] = $_POST['afternoon_friday'];
      $data['dinner_monday'] = $_POST['dinner_monday'];
      $data['dinner_tuesday'] = $_POST['dinner_tuesday'];
      $data['dinner_wednesday'] = $_POST['dinner_wednesday'];
      $data['dinner_thursday'] = $_POST['dinner_thursday'];
      $data['dinner_friday'] = $_POST['dinner_friday'];
      $data['publish'] = $_POST['publish'];
      $data['observation'] = $_POST['observation'];

      $this->db->insert('meals', $data);
    }