Use javascript data in cakephp

Since the event is happening on the client side (javascript), you'll need to POST your data to a controller method via AJAX (also convenient since you are already using jQuery).

JS code

$(function() {

  // yes = 1, no = 0
  function recordClick(val) {
    console.log('sending...');

    // return ajax call, which returns a Promise object
    return  $.ajax({
      url: 'controller/method',
      method: 'POST',
      data: {the_value: val},
      complete: function() {
        console.log('Data was sent!');
      }
    });
  }

  $( "#dialog-confirm" ).dialog({
    modal: true,
    buttons: {

      "Oui": function() {
        recordClick(1).then(function() {
          $( this ).dialog( "close" );
        });
      },

      "Non": function() {
        recordClick(0).then(function() {
          $( this ).dialog( "close" );
        });
      }
    }
  });

});

Cake 2.x code

<?php

public function method() {
  // Run only if this is an AJAX request and we are POSTing data
  if ($this->request->is('ajax') && !empty($this->request->data)) {
    $value_to_save = $this->request->data['the_value'];

    if ($value_to_save == 1) {
      $this->Controller->save('yes');
    } else {
      $this->Controller->save('no');
    }
  } else {
    throw new \MethodNotAllowedException('This method is not allowed');
  }
}

Without seeing your controller methods and everything its difficult, but that is more or less what you'd want.

So from a high perspective:

1. On button click from within the modal, call a JS function, passing in a parameter based on what you clicked ('1' for Yes, '0' for No).
2. That function makes an AJAX request to some controller method, and passes in the data is received from its argument into the data attribute of the AJAX call.
3. Your controller method will access that data via $this->request->data, in this case, we passed it as the_value.
4. From within your controller method, after you have the data, save it to your database using whatever means you normally do.