Slim 3在中间件中获取当前路由 [英] Slim 3 get current route in middleware

问题描述

我想在中间件类中获取当前路由的名称.以前(在Slim 2. *中)，您可以像这样获取当前路线:

I want to get the name of the current I route in a middleware class. Previously (in Slim 2.*) you could fetch the current route like so:

$route = $this->app->router->getCurrentRoute();

$route = $this->app->router->getCurrentRoute();

但是此功能已在Slim的3.0版本中删除.我在Slim\App的__invoke方法中找到了以下代码:

But this function has been removed in the 3.0 version of Slim. I've found the following code in the __invoke method of Slim\App:

    // Get the route info
    $routeInfo = $request->getAttribute('routeInfo');

    /** @var \Slim\Interfaces\RouterInterface $router */
    $router = $this->container->get('router');

    // If router hasn't been dispatched or the URI changed then dispatch
    if (null === $routeInfo || ($routeInfo['request'] !== [$request->getMethod(), (string) $request->getUri()])) {
        $request = $this->dispatchRouterAndPrepareRoute($request, $router);
        $routeInfo = $request->getAttribute('routeInfo');
    }

这表示当前路径在属性routeInfo中存储为Request.但是似乎我的自定义中间件类在属性设置之前被调用(通过$this->dispatchRouterAndPrepareRoute($request, $router);方法).因为调用$request->getAttribute('routeInfo')会解析为NULL.

This indicates that the current route is stored as the attribute routeInfo in the Request. But it seems that my custom middleware class is called before the attribute is set (by the $this->dispatchRouterAndPrepareRoute($request, $router); method). Because calling $request->getAttribute('routeInfo') resolves to NULL.

所以我的问题是；如何从中间件功能/类中获取当前路由(或路由名称)?

So my question is; how can I get the current route (or the name of the route) from a middleware function/class?

还是我应该从Slim\App复制上面的代码?

Or should I just copy the piece of code above from Slim\App?

推荐答案

对于Slim3，这是一个示例，向您展示如何从中间件中获取路由信息，这实际上是先前答案的组合.

For Slim3, here is an example showing you how to get routing information from within middleware, which is actually a combination of previous answers put together.

<?php

$slimSettings = array('determineRouteBeforeAppMiddleware' => true);

// This is not necessary for this answer, but very useful
if (ENVIRONMENT == "dev")
{
    $slimSettings['displayErrorDetails'] = true;
}

$slimConfig = array('settings' => $slimSettings);
$app = new \Slim\App($slimConfig);


$myMiddleware = function ($request, $response, $next) {

    $route = $request->getAttribute('route');
    $routeName = $route->getName();
    $groups = $route->getGroups();
    $methods = $route->getMethods();
    $arguments = $route->getArguments();

    print "Route Info: " . print_r($route, true);
    print "Route Name: " . print_r($routeName, true);
    print "Route Groups: " . print_r($groups, true);
    print "Route Methods: " . print_r($methods, true);
    print "Route Arguments: " . print_r($arguments, true);
};

// Define app routes
$app->add($myMiddleware);


$app->get('/', function (\Slim\Http\Request $request, Slim\Http\Response $response, $args) {
    # put some code here....
})

就我而言，我想添加中间件以确保用户在某些路由上登录，如果没有，则将其重定向到登录页面.我发现最简单的方法是在这样的路线上使用->setName():

In my case, I wanted to add middleware that would ensure the user was logged in on certain routes, and redirect them to the login page if they weren't. I found the easiest way to do this was to use ->setName() on the routes like so:

$app->get('/', function (\Slim\Http\Request $request, Slim\Http\Response $response, $args) {
    return $response->withRedirect('/home');
})->setName('index');

然后，如果此路由匹配，则中间件示例中的$routeName将为"index".然后，我定义了不需要身份验证的路由数组列表，并检查了当前路由是否在该列表中.例如.

Then if this route was matched, the $routeName in the middleware example will be "index". I then defined my array list of routes that didn't require authentication and checked if the current route was in that list. E.g.

if (!in_array($routeName, $publicRoutesArray))
{
    # @TODO - check user logged in and redirect if not.
}

这篇关于Slim 3在中间件中获取当前路由的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！