Laravel route optional parameter to controller - php

Question

Hi please help me with the following,
on Laravel 5.5
I have the following routes:
This one works:
Route::delete('/delete-comment/{id}', 'CommentController#destroy');
This one does not work as I'm using the same method as the above route and does not have the first parameter 're_id' which is not required:
Route::delete('/your-template/{re_id}/delete-comment/{id}', 'CommentController#destroy');
The method being:
public function destroy($id)
{
//do something
}
I want to use the same method without the first parameter for the sub route 're_id'.
I do not need this kind of solution, since I want to use the same function for both routes.
public function destroy($re_id= '' $id)
{
//do something
}
Is there a way to ignore the first parameter 're_id' on the route or a more generic way to use a slug on the first fragment on the route like:
Which btw does not work:
Route::delete('/{slug?}/delete-comment/{id}', 'CommentController#destroy');

Answer 1

In PHP generally the optional parameter/s MUST be at the end...
for example this will cause a Fatal Error in PHP v7.1^
function test($first = null, $second)
{
echo $first .' '.$second;
}
test('string');
In your case I would try it like this (not sure if it will work)
Route::delete('/delete-comment/{id}/{slug?}', 'CommentController#destroy');
public function destroy($id, $re_id = null)
{
//do something
}

Answer 2

If anyone gets stuck on this, I got a solution:
1.- Create a config file 'route.php'
<?php
return [
'filters' => [
// Routes
'your-template/{re_id}/delete-comment/{id}',
'your-template/{re_id}/update-comment/{id}',
'article' => [
// Route arguments {name}
're_id',
]
]
];
2.- Create a Middleware with the command:
php artisan make:middleware RouteArgumentsFilterMiddleware
<?php
namespace App\Http\Middleware;
use Closure;
class RouteArgumentsFilterMiddleware
{
/**
* Handle an incoming request.
*
* #param \Illuminate\Http\Request $request
* #param \Closure $next
* #return mixed
*/
public function handle($request, Closure $next)
{
$config = config('route.filters');
if (in_array($request->route()->uri, $config)) {
foreach ($config['article'] as $argument) {
$request->route()->forgetParameter($argument);
}
}
return $next($request);
}
}
3.- On your web.php file add the middleware to the needed routes:
Route::delete('/your-template/{re_id}/delete-comment/{id}', 'CommentController#destroy')->middleware('param_filter');
Route::put('/your-template/{re_id}/update-comment/{id}', 'CommentController#update')->middleware('param_filter');
4.- run composer dump-autoload
Then the desired parameter will be ignored when sent to the controller.