public function edit($credentials)
{
$user = new models\Users();
$user->id = $credentials['id'];
$user->fullname = $credentials['fullname'];
$user->password = $credentials['password'];
$user->email = $credentials['email'];
$user->phone = $credentials['phone'];
$user->mobile = $credentials['mobile'];
$this->signedUpUser = $user->save();
}
