Laravel create or update without two queries

Question

I\'m trying to use one form for both creates and updates. Both actions save through this method:

public function store() {
    $data = Input::all();
    $dat         


        

Answer 1

Find or New based on primary key id

$data = Input::all();
$user = User::findOrNew($id);  // if exist then update else insert
$user->name= $data['user_name'];
$user->save();

First or New based on non-primary key single filed

$user = User::firstOrNew(['field' => $data['value'] ]);
$user->name= $data['user_name'];
$user->save();

First or New based on non-primary key multiple filed

$user = User::firstOrNew([
                     'field1'=>$data['value1'],
                     'field2'=>$data['value2']
                     ]);
$user->name= $data['user_name'];
$user->save();