After reflecting, I would like to display changes in form page - laravel

Question

I would like to make a form.
After submitting the data,Redirect to the same page and reflect a change.
I thought return redirect should be a good way.
but it seems need to fetching the DB.
because 'ErrorException
Trying to get property 'id' of non-object (View:'error happens.
writing $user = \DB::table('users')->where('id', $request->id)... twice
is redundancy and cheesy.
Is there any good way to implement this.
class CertainController extends Controller
{
public function index(Request $request)
{
$user = \DB::table('users')->where('id', $request->id)->first();
$data = ['user' => $user];
return view('user.detail',$data);
}
public function update(Request $request)
{
\DB::table('users')
->where('id', $request->id)
->update([
$request->name => $request->value
]);
return redirect(route('user.detail', [
'user_id' => $request->id,
]));
}
}
web.php
Route::get('/user_detail', 'CertainController#index')->name('user.detail');
Route::get('/user_detail/update', 'CertainController#update')->name('user.detail.update');
blade
<form method ="GET" action={{ route('user.detail.update')}}>
<div class="form-group row">
<label>name</label>
<div class="col-md-6">
<input type = "hidden" name ="id" value="{{ $user->id }}"/>
<input type = "hidden" name = "column" value="name">
<input id="name" type="text" class="form-control #error('name') is-invalid #enderror" name="name" value="{{ $user->name }}" required autocomplete="name">
#error('')
{{ $message }}
#enderror
<button type = "submit" class ="button">submit</button>
</div>
</div>
</form>

Answer 1

You are looking for id in the index method,
$request->id
^^
But you are sending user_id from update method.
'user_id' => $request->id,
^^^^^
In a simple way, you can just do
return back();
here, back() is a helper function, which redirect back to where it came from.