/**
* Update a model by id.
*
* @param int $id
* @param array $data
*
* @return \Illuminate\Database\Eloquent\Model
*/
public function update($id, array $data)
{
$metric = $this->model->findOrFail($id);
$metric->fill($data);
$this->validate($metric);
$metric->update($data);
return $metric;
}
