function edit($id)
{
$user = User::findOrFail($id);
$user_info = UserInfo::findOrFail($id);
$new_team = $_POST['team_id'];
if ($new_team === '') {
$new_team = null;
// or 'NULL' for SQL
}
$user_info->team_id = $new_team;
$user_info->save();
return redirect('/admin');
}
