LARAVEL - Validation Laravel
<?php
$rules = array(
'titre' => 'required|alpha|unique:livres',
'auteur' => 'required|alpha',
'editeur' => 'required|alpha'
);
$validator = Validator::make(Input::all(), $rules);
if ($validator->passes()) {
$livre = new Livre;
$livre->create(Input::all());
return 'Livre enregistré';
} else {
return Redirect::back()->withInput()->withErrors($validator->messages());
}