Laravel 5 Update existing in database - php

Question

I'm trying to update an existing row in my table using a form in a bootstrap modal. But nothing changes when I attempt it. I have an html table with a list of cars and in each row a button "Change Status" that opens the bootstrap modal with the id="myModal_{{ $car->id }}" and with the form inside it to edit the status of a car in repair.
Here's my modal:
<!-- Modal -->
<div class="modal fade" id="myModal_{{ $car->id }}" tabindex="-1" role="dialog" aria-labelledby="myModalLabel">
<div class="modal-dialog" role="document">
<div class="modal-content">
<div class="modal-header">
<button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">×</span></button>
<h4 class="modal-title" id="myModalLabel">Breyta stöðu bíls</h4>
</div>
<div class="modal-body">
<div class="form-group">
<h3>Breyta stöðu fyrir {{ $car->LicencePlate }}</h3>
</div>
{!! Form::open(['url' => 'create']) !!}
<div class="form-group">
{!! Form::label('Status', 'Status: ') !!}
{!! Form::select('Status', [
null => ' -- Veldu Stöðu bíls -- ',
'Í Biðröð' => 'Í Biðröð',
'Í Viðgerð' => 'Í Viðgerð',
'Tilbúinn' => 'Tilbúinn'
], null, ['class' => 'form-control']) !!}
</div>
<div class="form-group">
</div>
</div>
<div class="modal-footer">
<button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
{!! Form::submit('Skrá stöðu', ['class' => 'btn btn-primary']) !!}
</div>
{!! Form::close() !!}
</div>
</div>
</div>
Update method in CarController:
public function CarEdit($id, Requests\CreateCarsRequest $request)
{
$edit = Car::update($request->all());
return redirect::back();
}
My Route to that method:
Route::post('/dashboard', 'CarController#CarEdit');

Answer 1

You should do this:
['action' => 'CarController#CarEdit']
Also, you're using mass assignment, so you must fill $fillable array in your Car model to make it work:
https://laravel.com/docs/5.1/eloquent#mass-assignment

Answer 2

I was able to fix this with the help of my colleagues. What I did was I created a new requet called UpdateCarRequest where the LicencePlate field was not unique. And edited my method like so:
public function CarEdit(Requests\UpdateCarRequest $request)
{
$edit = Car::where('LicencePlate', '=', $request->LicencePlate)->first();
$edit->update($request->all());
return redirect('/dashboard');
}
I also added a hidden field in the form with the value $car->LicencePlate.