Symfony 2-尝试从同一类中的另一个方法获取属性

Question

As you can see in the code below, I am attempting to make a sub-navigation. I want to make it from scratch, rather than use a bundle because I'm using this as a learning exercise. I've reached a point where I think I've just about cracked it. All I need now is to access the results of the navAction() db query inside subNavAction().

I've managed to get as far as 'echo self::navAction($sector);' which DOES echo out the full navigation again but I can't seem to access individual items in the query. What I actually need to do is to loop through the results of navAction() and get the results for all items with children.

I am really new to OOPHP (although I know procedural quite well) and Symfony/Doctrine so the more comprehensive and answer you can give me, the better.

//Render Navigation
public function navAction($sector)
{
    $em = $this->getDoctrine()->getManager();
    $query = $em->createQuery(
       "SELECT DISTINCT p.pageName, p.pageParent
        FROM styleGuideBundle:pages p 
        WHERE  p.pageSector LIKE :sector 
        AND p.pageType = 2"
    );
    $query->setParameter(':sector', '%'.$sector.'%');
    $navItems = $query->getResult();
    if (!$navItems) throw $this->createNotFoundException('Unable to find any pages under this category');
    return $this->render(
        'styleGuideBundle:Partial:peNav.html.twig',
        array(
            'navItems' => $navItems,
            'sector' => $sector
        )
    );
}

//Render SubNavigation
public function subnavAction($sector)
{
    echo self::navAction($sector); // This line is where I got stuck.
    $em = $this->getDoctrine()->getManager();
    $query = $em->createQuery(
       "SELECT DISTINCT p.pageName, p.pageParent
        FROM styleGuideBundle:pages p 
        WHERE  p.pageSector LIKE :sector 
        AND p.pageType = 2"
    );
    $query->setParameter(':sector', '%'.$sector.'%');
    $navItems = $query->getResult();
    if (!$navItems) throw $this->createNotFoundException('Unable to find any pages under this category');
    return $this->render(
        'styleGuideBundle:Partial:peNav.html.twig',
        array(
            'navItems' => $navItems,
            'sector' => $sector
        )
    );
}

Answer 1

It's not the best solution,but you can create an object variable $this->navItems;

PageController extends Controller {

      public $navItems = null; 

    //Render Navigation
        public function navAction($sector)
        {
            $em = $this->getDoctrine()->getManager();
            $query = $em->createQuery(
               "SELECT DISTINCT p.pageName, p.pageParent
                FROM styleGuideBundle:pages p 
                WHERE  p.pageSector LIKE :sector 
                AND p.pageType = 2"
            );
            $query->setParameter(':sector', '%'.$sector.'%');
            $this->navItems = $query->getResult();

            if (!$this->navItems) throw $this->createNotFoundException('Unable to find any pages under this category');
            return $this->render(
                'styleGuideBundle:Partial:peNav.html.twig',
                array(
                    'navItems' => $this->navItems,
                    'sector' => $sector
                )
            );
        }


        //Render SubNavigation
        public function subnavAction($sector)
        {
            $this->navAction($sector);
            var_dump($this->navItems);

            $em = $this->getDoctrine()->getManager();
            $query = $em->createQuery(
               "SELECT DISTINCT p.pageName, p.pageParent
                FROM styleGuideBundle:pages p 
                WHERE  p.pageSector LIKE :sector 
                AND p.pageType = 2"
            );
            $query->setParameter(':sector', '%'.$sector.'%');
            $navItems = $query->getResult();
            if (!$navItems) throw $this->createNotFoundException('Unable to find any pages under this category');
            return $this->render(
                'styleGuideBundle:Partial:peNav.html.twig',
                array(
                    'navItems' => $navItems,
                    'sector' => $sector
                )
            );
}