Can't get id from previous page Laravel - laravel

Question

I have a button to see detail about user using button in each row datatable, the button will call a route detail.show and open link with user_id with it (ex:http://127.0.0.1:8000/detail/7),
here is the button code
->addColumn('action', function ($post) {
$link = "route('detail.show',$post->user_id)";
$btn = ' <span class="fas fa-eye"></span>';
return $btn;
})
the problem is I cant get any data from it, is there something wrong?
here is my route
Route::resource('detail', DetailController::class);
Here is my controller
public function show($user_id)
{
$post = Post::where('user_id', $user_id)->latest()->get();
return view('detail', compact('post'));
}
and here is my view
#extends('layouts.app')
#section('content')
<div class="row mt-5 mb-5">
<div class="col-lg-12 margin-tb">
<div class="float-left">
<h2> Show Post</h2>
</div>
</div>
</div>
<div class="row">
<div class="col-xs-12 col-sm-12 col-md-12">
<div class="form-group">
<strong>User ID:</strong>
{{ $post->user_id }}
</div>
</div>
<div class="col-xs-12 col-sm-12 col-md-12">
<div class="form-group">
<strong>Name:</strong>
{{ $post->name }}
</div>
</div>
</div>
#endsection
I cant show anything using code as shown above. Is there something wrong? thanks in advance

Answer 1

Problems like this can often be solved by structuring your logic to be cleaner, more straightforward and use constructs of the framework as intended (documented).
In this case I would treat a user as resource and not the "detail".
I would rather create a specific route for showing the specific details of the user or just use partial resource routes.
Anyway, if you would like to keep your current build:
If I remember correctly, parameter passed to the show function in the controller should match the parameter name in your route.
When you generate routes with
Route::resource('detail', DetailController::class);
it creates something like
/details/{detail}
for the show method.
As described in this part of the docs.
Try replacing
$user_id
with
$detail
in your show method.