How to get back data from a function via ajax?

Question

I have an ajax in my view add that makes an asynchronous request in an action test in my controller, in this function I need to return the variable $balance to my view add, I would like to know how I send this data and how they arrive in my view.

Below is my ajax function:

    $('#entity').click(function(){
    var campanha = $('#entity').serialize()
    console.log(campanha); 
     $.ajax({
       type: 'post',               
       data: campanha,
       url:'<?php echo Router::url('/emailMarketings/test/'); ?>',
       })
    });

And here’s my action:

    public function test() {

    if ($this->request->is('post')) {
        $teste = $this->request->data;
    }
    // debug($teste); die;

    // $this->redirect($this->referer());

   $balance = $this->Balance->find('first', array('order' => array('Balance.cota_email=' => $teste['Balance']['campaigns'])));
}

This is my job, I would like to send this variable to my view and print it there. But I don’t know how to send it to my view.

Answer 1

At the end of this method test, before closing the function, add:

$this->set('balance', $balance);

This will leave a variable $balance available in your view test.ctp.

---

On the Javascript side, you need to define a callback which determines what will be done when the request reply arrives. The part of Ajax looks like this:

$.ajax({
    type: 'post',               
    data: campanha,
    url:'<?php echo Router::url('/emailMarketings/test/'); ?>',
    success: function(data) {
        console.log('Retornados os seguintes dados:');
        console.log(data);
    }
});