public function search()
{
    $ramais = $this->paginate($this->Ramais);

    if ($this->request->is('post')) {
        $search = null;
        if (isset($this->request->data['search'])) {
            $search = $this->request->data['search'];
        }

        $ramal = $this->Ramais->find('all',
            [
                'contain' => ['Setores'],

                'conditions'=>['OR'=>
                    [
                        'Ramais.name LIKE'=>'%'.$search.'%',
                        'Ramais.ramal LIKE'=>'%'.$search.'%',
                        'Setores.name LIKE'=>'%'.$search.'%'
                    ]
                ]
            ]
        );

        //debug($ramal); exit();

        $this->set(compact('ramais', 'ramal', 'setor'));
        $this->set('_serialize', ['ramais'], ['setor']);
        $this->render('index');

    }
}