public static function generateForUser($user_id)
{
Token::where('user_id', '=', $user_id)->delete();
$token = new Token();
$token->{'user_id'} = $user_id;
$token->token = $user_id . '-' . Token::v4UUID();
$token->expires = Token::expirationTime();
$token->save();
return $token;
}
