Laravel 5.4:如何在控制器中不使用route参数 [英] Laravel 5.4: How to DO NOT use route parameter in controller

问题描述

我正在开发一种多语言应用程序，并试图制作一个中间件以将路由{locale}前缀传递给URL.但是现在我不需要在控制器中使用此{locale}参数，例如:

I am developing a Multilingual application and trying to make a middleware to pass route {locale} prefix to URL. But now I do not need to use this {locale} parameter in controller, for example:

public function getPost(App\Post $post)
{
    return view('welcome')->withPost($post);
}

但是，除非我将App\Post $post更改为$locale, App\Post $post，否则上面的代码不起作用.

But the code above does not work unless I change the App\Post $post to $locale, App\Post $post.

问题是因为每当我创建一个新的控制器时，我都需要传递$ locale参数.那不酷.

The problem is because I'll need to pass the $locale parameter whenever I create a new controller. That is not cool.

如何避免将$locale参数传递给所有控制器?我不需要它，因为我已经在中间件上使用它了.

How to avoid passing $locale parameter to all controllers? I do not need it because I already used it on my middleware.

更新:

routes \ web.php

routes\web.php

Route::prefix('{locale}')->middleware('locale')->group(function () {     

    Route::get('/', 'PageController@getHome')->name('welcome');
    Auth::routes();
    Route::get('/home', 'HomeController@index')->name('home');

    ...

    // This route must be the last!
    Route::get('/{post}', 'PageController@getPost')->name('post');
});

推荐答案

我不使用前缀参数而是使用自定义辅助函数解决了我的问题.

I solved my question without using a prefix parameter, but using a custom helper function.

通过这种方式，我不再需要中间件来解析{locale}前缀参数.请参阅我的自定义帮助程序函数，以从URL解析语言环境:

By this way, I do not need a middleware to parse the {locale} prefix parameter anymore. See my custom helper function to parse locale from URL:

function parseLocale()
{
    $locale = Request::segment(1);
    $languages = ['pt', 'it', 'fr', 'ru', 'es'];

    if (in_array($locale, $languages)) {
        App::setLocale($locale);
        return $locale;
    }

    return '/';
}

现在我只需要在Route :: prefix()上使用它，如下所示:

Now I need just to use it on my Route::prefix() like following:

Route::prefix(parseLocale())->group(function () {
    Auth::routes();
    Route::get('home', 'HomeController@index')->name('home');
    Route::get('/', 'PageController@getHome')->name('welcome');
    ...

如您所见，如果您尝试导航至www.site.com/pt/something，则应用程序将为您提供something路由，就像您尝试导航至www.site.com/something一样.但是，如果没有语言环境前缀，Laravel将加载您在config\app.php中设置的默认语言.

As you can see, if you try to navigate into www.site.com/pt/something the application will give you the something route the same way you try to navigate into www.site.com/something. But without the locale prefix the Laravel will load the default language you've set in config\app.php.

谢谢你们！

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