What is the best way to POST data from .tpl

[jahyax]

I am trying to create a module that will allow the user to pick its delivery date and choose the available hour, I want to save the date selected and the hour selected,

 

My problem is, I dont know where to post the data that it will be save into the cart and order

 

here is the sample of my javascript code:

 

<script type="text/javascript">

$('#hr-sel').on('change', function() {

      updateDelivery();

    });

 

    function updateDelivery(){

 

    var delivery_date = $("#alternate").val();

    var delivery_hour = $('#hr-sel :selected').text();

 

 

      $.ajax({

        type: 'POST',

        url: ../views/templates/hook/shippingdate.php,

        async: false,

        cache: false,

        datatype: 'json',

        data: 'delivery_date='+delivery_date+'&delivery_hour='+delivery_hour,

        success: function (jsonData){

          console.log(jsonData);

        }

 

      });

  }

</script>

 

 

and on my shippingdate.php I have

 

function hookActionCarrierProcess($params) {

        $cart = $this->context->cart;

 

        $delivery_date = Tools::getValue('shipping_date');

        $delivery_hour = Tools::getValue('alternate');

        if (!empty($delivery_date)) {

            $cart->delivery_date = $delivery_date;

            if (!empty($delivery_hour)) {

                $cart->delivery_hour = $delivery_hour;

            }

            $cart->save();

        }

    }

 

 

please anyone any idea what I am missing or what I am doing wrong??