How to save post form in Laravel-4

I am creating parent email form in this form parent insert his email id. I facing problem is when I submit form that showing error ,Method [save] does not exist and my code is

registration form

<div class="form">
    {{ Form::open(array('url' => '/api/v1/parents/registration_step_2', 'class' => "worldoo-form form form-horizontal", 'id' => "signupForm", 'method' => "post" )) }}
      <div class="form-group ">
        {{ Form::label('cemail', 'Please enter your parents e-mail:', array('class' => "control-label"));}}
        <div class="">
          {{ Form::email('cemail', '', array('class' => "form-control", 'id' => "cemail"));}}
          <i class="sprite success form-control-feedback"></i> </div>
        <h5 class="regular-font text-left">Your parents will need to activate your account before you can access worldoo.</h5>
      </div>
      <div class="form-group">
        <div class="text-center">
          {{Form::submit('Next', array('class' => "btn btn-primary"));}}
        </div>
      </div>
    {{ Form::close() }}
</div>

my controller

public function registrationStepTwo()
{

    $cemail = $_REQUEST['cemail'];

    if($cemail != '')
    {
        $parent = new Parent;
        $parent->email = $cemail;
        $parent->save();
    }

}