I am trying to create and update users with laravel 5.4
This is the validation added for create user. It works.
$this->validate($request, [
    'name' => 'required|max:255',
    'email' => 'required|email|max:255|unique:users',
    'password' => 'required|min:6|confirmed',
]);
On update the password field is not required. But validate the min:6 and confirmed rule if the password field is not null. Tried with sometimes.. but not working..
$this->validate($request, [
    'name' => 'required|max:255',
    'email' => 'required|email|max:255|unique:users,email,'.$id,
    'password' => 'sometimes|min:6|confirmed',
]);