Pass a variable on multiple views - laravel

Question

I need to pass a variable on multiple views in order to perform an UPDATE on multiple views ( editScadenza and elaborazioneScadenza).
Or do you know another simpler solution?
ScadenzaController.php
public function edit($id)
{
$data['scadenzaRecuperata'] = \App\Scadenza::find($id);
return view('scadenze.editScadenza', $data);
}
UPDATE
public function update(Request $request, $id)
{
$this->validate($request,[
'titolo'=>'required',
'termine_stimato'=>'required',
'responsabile'=>'required',
'tipologia_id'=>'required',
'giorni_avviso'=>'required',
],
[
'titolo.required'=>'Il titolo é obbligatorio',
'termine_stimato.required' => 'Il termine stimato é obbligatoria',
'responsabile.required' => 'Il responsabile é obbligatorio',
'tipologia_id.required' => 'Il tipo é obbligatorio',
'giorni_avviso.required'=> 'I giorni di avviso sono obbligatori',
]);
$scadenza = \App\Scadenza::find($id);
$now = Carbon::now();
$end = Carbon::parse($scadenza->termine_stimato);
$length = $end->diffInDays($now);
$scadenza->titolo = $request->input('titolo');
$scadenza->termine_stimato = date_create($request->input('termine_stimato'))->format('Y-m-d H:i');
$scadenza->responsabile = $request->input('responsabile');
$scadenza->tipologia_id = $request->input('tipologia_id');
$scadenza->processo_id = $request->input('processo_id');
$scadenza->stato = $request->input('stato');
$scadenza->giorni_avviso = $request->input('giorni_avviso');
$scadenza->osservazioni = $request->input('osservazioni');
$scadenza->save();
return redirect('scadenza');
}

Answer 1

The best recommended solution is to share variables from the controller function. If you need it just for 2, 3 views and all comes under the same controller then share it as usual:
public function function_nameX($id)
{
..
return view('scadenze.viewNameX')->withData($data);
}
...
public function function_nameY()
{
..
return view('scadenze.viewNameY')->withData($data);
}
Do it even if you have views returned from multiple controllers. Because this is the most convenient way.
To share a variable with all views in your project, share it from AppServiceProvider's boot() function like:
public function boot()
{
$data['scadenzaRecuperata'] = \App\Scadenza::find($id);
View::share('data', $data);
}
View Composer also help to bind specific data to view in different
ways. You can directly bind variable to specific view or to all views.
For Example you can create your own directory to store your view
composer file according to requirement. and these view composer file
through Service provide interact with view.
Here is the doc.

Answer 2

To share data with views you can set a view Composer
in app/Providers/AppServiceProvider.php into boot() method
public function boot() {
view()->composer('scadenze.editScadenza', function($view) {
$data = \App\Scadenza::find(request()->id);
$view->with('data', $data);
});
}
For more date, see Laravel View Composers
if you need to share only with one: composer('VIEW_NAME', ...)
If you need to share the data with more than one: composer(['VIEW_NAME_1', 'VIEW_NAME_2'], ...)
If you need to share with all views: composer('*', ...)