simple ajax form in cakephp 3.0 - ajax

Question

As JsHelper is no more in cakephp 3.0 so what i am doing is to save my form data into database using ajax
i just have two input fields.
my files are:
add.ctp
js.js
EmployeesController.php
add.ctp
$this->Form->create('Employees');
$this->Form->input('name', array('id'=>'name'));
$this->Form->input('age', array('id'=>'age'));
$this->Form->button('Add Info', array(
'type'=>'button',
'onclick'=>'infoAdd();'
));
$this->Form->end();
js.js
function infoAdd() {
var name=$("#name").val();
var age=$("#age").val();
$.get('/employees/info?name='+name+"&age="+age, function(d) {
alert(d);
});
}
EmployeesController.php
class EmployeesController extends AppController {
public $components=array('RequestHandler');
public function add() {
$emp=$this->Employees->newEntity();
if($this->request->is('ajax')) {
$this->autoRender=false;
$this->request->data['name']=$this->request->query['name'];
$this->request->data['age']=$this->request->query['age'];
$emp=$this->Employees->patchEntity($emp,$this->request->data);
if($result=$this->Employees->save($emp)) {
echo "Success: data saved";
//echo $result->id;
}
else {
echo "Error: some error";
//print_r($emp);
}
}
}
}
Note : my model only have not empty rule for both fields
all what i am doing is working fine but i dont think i m doing it in right way or as it should be.
please help me what i m missing and what i don't need to do.

Answer 1

Take away the autoRender line and serialize the data you want returned:
public function add() {
$data = [];
$emp=$this->Employees->newEntity();
if($this->request->is('ajax')) {
$this->request->data['name']=$this->request->query['name'];
$this->request->data['age']=$this->request->query['age'];
$emp=$this->Employees->patchEntity($emp,$this->request->data);
if($result=$this->Employees->save($emp)) {
$data['response'] = "Success: data saved";
//echo $result->id;
}
else {
$data['response'] = "Error: some error";
//print_r($emp);
}
}
$this->set(compact('data'));
$this->set('_serialize', 'data');
}
The serialize function tells Cake that it's not expecting the function to have a view, so autoRender is not needed (http://book.cakephp.org/3.0/en/views/json-and-xml-views.html).