knpMenu不能添加动态路由

Question

我正在使用symfony 3.3和knpMenu 2.2，我已经注册了一个菜单生成器作为服务

    lilworks_store.menu_builder:
    class: LilWorks\StoreBundle\Menu\MenuBuilder
    arguments: ["@knp_menu.factory","@request_stack"]
    tags:
        - { name: knp_menu.menu_builder, method: createMainMenu, alias: main } # The alias is what is used to retrieve the menu

我可以呈现一个简单的菜单，没有任何问题。但是当我尝试使用参数进行路由时，我有一个错误。

在模板的呈现过程中抛出了一个异常(路由"customer_show“的参数”customer_show“必须匹配"^/++”(“给定”)才能生成相应的URL)。

我可以在$this->requestStack->getCurrentRequest()->get('customer_id')的条件下避免这种情况，只有在路由参数可用的情况下才能创建子节点。

class MenuBuilder
{


private $factory;
private $requestStack;

/**
 * @param FactoryInterface $factory
 *
 * Add any other dependency you need
 */
public function __construct(FactoryInterface $factory,RequestStack $requestStack)
{
    $this->factory = $factory;
    $this->requestStack = $requestStack;
}
public function createMainMenu(array $options)
{

    $menu = $this->factory->createItem('root');

    $menu->addChild('storebundle.menu.storehome', array('route' => 'site_homepage'));
    $menu->addChild('storebundle.menu.adminhome', array('route' => 'lilworks_store_homepage'));
    $userMenuCat = $menu->addChild('storebundle.menu.cat.user');

    $customerMenu = $userMenuCat->addChild('storebundle.menu.customer', array('route' => 'customer_index'));
    $customerMenu->addChild('storebundle.menu.customer.new', array('route' => 'customer_new'));
    if($this->requestStack->getCurrentRequest()->get('customer_id')){
        $customerMenu->addChild('storebundle.menu.customer.show', array('route' => 'customer_show', 'routeParameters' => array('customer_id' => $this->requestStack->getCurrentRequest()->get('customer_id'))));
        $customerMenu->addChild('storebundle.menu.customer.edit', array('route' => 'customer_edit', 'routeParameters' => array('customer_id' => $this->requestStack->getCurrentRequest()->get('customer_id'))));
    }

    $userMenu =  $userMenuCat->addChild('storebundle.menu.user', array('route' => 'user_index'));
    $userMenu->addChild('storebundle.menu.user.new', array('route' => 'user_new'));
    if($this->requestStack->getCurrentRequest()->get('user_id')){
        #$userMenu->addChild('storebundle.menu.user.show', array('route' => 'user_show', 'routeParameters' => array('user_id' => $this->requestStack->getCurrentRequest()->get('user_id'))));
        #$userMenu->addChild('storebundle.menu.user.edit', array('route' => 'user_edit', 'routeParameters' => array('user_id' => $this->requestStack->getCurrentRequest()->get('user_id'))));
    }

    $sessionMenu = $userMenuCat->addChild('storebundle.menu.session', array('route' => 'session_index'));
    if($this->requestStack->getCurrentRequest()->get('session_id')){
        #$sessionMenu->addChild('storebundle.menu.session.show', array('route' => 'session_show', 'routeParameters' => array('session_id' => $this->requestStack->getCurrentRequest()->get('session_id'))));
        #$sessionMenu->addChild('storebundle.menu.session.edit', array('route' => 'session_edit', 'routeParameters' => array('session_id' => $this->requestStack->getCurrentRequest()->get('session_id'))));
    }


    $orderMenuCat = $menu->addChild('storebundle.menu.cat.order');
    $orderMenu = $orderMenuCat->addChild('storebundle.menu.order', array('route' => 'order_index'));
    $orderMenu->addChild('storebundle.menu.order.new', array('route' => 'order_new'));
    if($this->requestStack->getCurrentRequest()->get('order_id')){
        #$orderMenu->addChild('storebundle.menu.order.show', array('route' => 'order_show', 'routeParameters' => array('order_id' => $this->requestStack->getCurrentRequest()->get('order_id'))));
        #$orderMenu->addChild('storebundle.menu.order.edit', array('route' => 'order_edit', 'routeParameters' => array('order_id' => $this->requestStack->getCurrentRequest()->get('order_id'))));
    }

    $couponMenu = $orderMenuCat->addChild('storebundle.menu.coupon', array('route' => 'coupon_index'));
    $couponMenu->addChild('storebundle.menu.coupon.new', array('route' => 'coupon_new'));
    if($this->requestStack->getCurrentRequest()->get('coupon_id')){
        #$couponMenu->addChild('storebundle.menu.coupon.show', array('route' => 'coupon_show', 'routeParameters' => array('coupon_id' => $this->requestStack->getCurrentRequest()->get('coupon_id'))));
        #$couponMenu->addChild('storebundle.menu.coupon.edit', array('route' => 'coupon_edit', 'routeParameters' => array('coupon_id' => $this->requestStack->getCurrentRequest()->get('coupon_id'))));
    }
    $depositSaleMenu = $orderMenuCat->addChild('storebundle.menu.depositsale', array('route' => 'coupon_index'));
    $depositSaleMenu->addChild('storebundle.menu.depositsale.new', array('route' => 'depositSale_new'));
    if($this->requestStack->getCurrentRequest()->get('depositsale_id')){
        #$depositSaleMenu->addChild('storebundle.menu.coupon.show', array('route' => 'depositSale_show', 'routeParameters' => array('depositsale_id' => $this->requestStack->getCurrentRequest()->get('depositsale_id'))));
        #$depositSaleMenu->addChild('storebundle.menu.coupon.edit', array('route' => 'depositSale_edit', 'routeParameters' => array('depositsale_id' => $this->requestStack->getCurrentRequest()->get('depositsale_id'))));
    }
    return $menu;
}

在所有的例子中，我看到没有人使用这个条件来构建带有参数路径的菜单。我做错什么了？

Answer 1

你没做错什么。如果您需要来自请求的信息，比如来自URL的参数，或者来自服务的用户名(如$this->tokenStorage->getToken()->getUser();)，那么就安排获取它，并使用它。

在我自己的代码中，我获取了用户(如前所述--假设它存在)--使用它来创建一个链接：

    $menu->addChild('menu.edit_settings', [
        'route' => 'ca_profile_update',
        'routeParameters' => array('username' => $user->getUsernameCanonical()),
    ]);

对于您来说，我要特别做的唯一一件事是将各种参数('user_id‘等)一次放入变量中，然后使用它，而不是不断地重新获取它(在我看来，这有点过于冗长)。这就把菜单服务分成了一些更小的功能，让它更容易理解--但这比最初的问题更有风格和代码标准。

$this->addCustomerMenu(
    $userMenuCat,
    $this->requestStack->getCurrentRequest()->getInt('customer_id', 0)
);

public function addCustomerMenu(MenuItem $userMenuCat, int $customer_id): void
{
    $customerMenu = $userMenuCat->addChild('storebundle.menu.customer', array('route' => 'customer_index'));
    $customerMenu->addChild('storebundle.menu.customer.new', array('route' => 'customer_new'));
    if ($customer_id){
        $customerMenu->addChild('storebundle.menu.customer.show', array('route' => 'customer_show', 'routeParameters' => array('customer_id' => $customer_id)));
        $customerMenu->addChild('storebundle.menu.customer.edit', array('route' => 'customer_edit', 'routeParameters' => array('customer_id' => $customer_id)));
    }
}