Laravel language switcher, pass additional parameters to a route - php

Question

I really can't think of an elegant solution to fix this problem so here it is:
I followed this tutorial https://www.youtube.com/watch?v=KqzGKg8IxE4 to create a localization option for my website. However, integrating the auth was cancer and now I'm faced with an even greater issue regarding the routing for pages that require a get parameter.
Here is my blade code inside the app.blade.php for the language switcher:
<language-switcher
locale="{{ app()->getLocale() }}"
link-en="{{ route(Route::currentRouteName(), 'en') }}"
link-bg="{{ route(Route::currentRouteName(), 'bg') }}"
></language-switcher>
And here are some of my routes
Route::redirect('/', '/en');
Route::get('email/verify', 'Auth\VerificationController#show')->name('verification.notice');
Route::get('email/verify/{id}/{hash}', 'Auth\VerificationController#verify')->name('verification.verify');
Route::get('email/resend', 'Auth\VerificationController#resend')->name('verification.resend');
Route::group([
"prefix" => '{language}',
'where' => ['language' => '(en||bg)'],
], function () {
//Auth routes
Auth::routes();
//Returns to home
Route::get('/', 'HomeController#index')->name('home');
//Handles the faq routes
Route::resource('faq', 'FaqController');
});
Route::get('password/reset/{token}', 'Auth\ResetPasswordController#showResetForm')->name('password.reset');
Route::post('password/reset', 'Auth\ResetPasswordController#reset')->name('password.update');
});
It works well for pages that don't require any get parameters to work with ex: Login / Register / Home page, however if i use something that requires like, faq.edit, which takes an {id} parameters - the language switcher will throw an error because I haven't passed an {id} parameter to it.
The only solution I can think of is adding the language-switcher inside the child blade view and from there I pass the required parameters, however that implies that I have to add the language-switcher to every child view instead of only once at the parent.

Answer 1

You can achieve it with the following steps:
Implement a URL generator macro which will make much easier to generate your URLs which must be identical except language
Get the current route's parameters
Merge the chosen language into them
<?php
namespace App\Providers;
use Illuminate\Routing\UrlGenerator;
use Illuminate\Support\ServiceProvider;
class AppServiceProvider extends ServiceProvider
{
/**
* Register any application services.
*
* #return void
*/
public function register()
{
//
}
/**
* Bootstrap any application services.
*
* #return void
*/
public function boot()
{
UrlGenerator::macro('toLanguage', function (string $language) {
$currentRoute = app('router')->current();
$newRouteParameters = array_merge(
$currentRoute->parameters(), compact('language')
);
return $this->route($currentRoute->getName(), $newRouteParameters);
});
}
}
And in your Blade file
#inject('app', 'Illuminate\Contracts\Foundation\Application')
#inject('urlGenerator', 'Illuminate\Routing\UrlGenerator')
<language-switcher
locale="{{ $app->getLocale() }}"
link-en="{{ $urlGenerator->toLanguage('en') }}"
link-bg="{{ $urlGenerator->toLanguage('bg') }}"
></language-switcher>
You'll notice I used contracts injection instead of using facades. More informations here https://laravel.com/docs/7.x/contracts#contracts-vs-facades
And if you don't known Laravel macros, more informations here https://tighten.co/blog/the-magic-of-laravel-macros