class Page extends SiteTree {

   public static $db = array(
      'ShowInTopMenu' => 'Boolean',
      'ShowInLeftMenu' => 'Boolean',
      'ShowInLeftMenu2' => 'Boolean',
      'visits' => 'Int'
   );

   public static $has_one = array(
   );
   
   function getCMSFields()
   {
      $fields = parent::getCMSFields();
      
      $fields->addFieldToTab("Root.Behaviour", new CheckboxField("ShowInTopMenu", "Pokaż w menu górnym"));
      $fields->addFieldToTab("Root.Behaviour", new CheckboxField("ShowInLeftMenu", "Pokaż w menu lewym"));
      $fields->addFieldToTab("Root.Behaviour", new CheckboxField("ShowInLeftMenu2", "Pokaż w menu lewym 2"));
      
      return $fields;
   }

}

class Page_Controller extends ContentController
{
   function topMenu()
   {
      $whereStatement = "ShowInTopMenu = 1";
      return DataObject::get("Page", $whereStatement);
   }
   
   function leftMenu()
   {
      $whereStatement = "ShowInLeftMenu = 1";
      return DataObject::get("Page", $whereStatement);
   }
   
   function leftMenu2()
   {
      $whereStatement = "ShowInLeftMenu2 = 1";
      return DataObject::get("Page", $whereStatement);
   }
   
   function totalVisits()
   {
      return DB::query("SELECT SUM(visits) FROM page_live")->value();
   }
   
   public static $allowed_actions = array(
   );

   public function init()
   {
      parent::init();

      Requirements::themedCSS('layout');
      Requirements::themedCSS('typography');
      Requirements::themedCSS('form');
      
      //if( ?? cookie or session variable doesn't exist ?? )
      //{
         //?? create session or cookie ??

         $this->visits++;
         $this->write();

      //}
   }
}