Pass a variable on multiple views

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');

}

Did you know, when you're passing the ID of a model to a function you can access it like so public function edit (Scadenza $scadenza) which you could then do return view('scadenze.editScandenza', compact('scadenza'); It's one of laravel's great features and it saves you doing another DB query! :) — user5283119
– user5283119, Commented Mar 27, 2018 at 8:05
You should use view()->share (i.e laravel.com/docs/5.6/views) — AddWeb Solution Pvt Ltd
– AddWeb Solution Pvt Ltd, Commented Mar 27, 2018 at 8:05

Eazy Sam · Accepted Answer · 2018-03-27 08:16:57Z

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.

answered Mar 27, 2018 at 8:16

Eazy Sam

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4 Comments

Carmine Rub Over a year ago

I use the UPDATE form in two views. Is it possible that this thing conflicts? Because in the edit page it works, in the other it is not. But I used the same form.

Eazy Sam Over a year ago

You will definitely get the variable/object sent from the controller. You may not have the same values in both cases. Try: dd($name_of_variable); from controller before you send it to the view. You won't get the same or you may have different code in your views.

Carmine Rub Over a year ago

So the situation is strange. From the view I make an UPDATE (see updated code). I try to get the values in the controller (works). If I print dd () before $ this-> validate ($ request) I see the values if I insert it after this code I do not get the dd ();

Eazy Sam Over a year ago

Because the validation fails and Laravel redirects back. You have to print the error in the view. Take count($errors) in the view. @CarmineRub

Maru Amallo · Accepted Answer · 2018-03-27 08:39:31Z

1

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('*', ...)

edited Mar 27, 2018 at 8:39

answered Mar 27, 2018 at 8:29

Maru Amallo

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