problem with form data

i am trying to get data on Controller from view but not getting anything, tried searching on google and changing codes but nothing works.

Controller

public function appointmentForm()
{
helper('form');
$rules = [
'rulescheck' => 'required',
'name' => 'required',
];

if(!$this->validate($rules))
{
return $this->rules();
}
else
{
echo 'validation good';
}
}

no matter what only if get called

View

<?= validation_list_errors() ?>
  <form action="<?=base_url();?>appointment/" method="post" name="rulesForm">
  <?= csrf_field() ?>
  <div class="form-group mt-3">
  <input type="text" name="name" />
  <input style="height: 14px;" type="checkbox" name="rulescheck" id="rulescheck" required/>
  </div>
  <div class="text-center"><button type="submit" name="rulesSubmit" id="rulesSubmit">Submit</button></div>
  </form>

Route

$routes->get('appointment', 'Appointment::appointmentForm');

if i try to get the value using this method $post = $this->request->getPost();
this does not work

if i change the route to $routes->post('appointment', 'Appointment::appointmentForm');
I am getting Class and Method error and view is not loading.


I am not getting data on the controller.