cakephp 2.x在javascript中执行控制器

Question

I have the following issue: in cakaphp does not advice anymore the using of jshelper,insted of normal javascript.

    <?php
$this->Js->get('#PostCategoryId')->event('change', 
$this->Js->request(array(
'controller'=>'subcategories',
'action'=>'getByCategory'
), array(
'update'=>'#PostSubcategoryId',
'async' => true,
'method' => 'post',
'dataExpression'=>true,
'data'=> $this->Js->serializeForm(array(
'isForm' => true,
'inline' => true
))
))
);
?>

I don't know how to execute cake controller in js(without using jshelper):

$this->Js->request(array(
'controller'=>'subcategories',

Normally in core php, i would do like this:

$("select#category").change(function(){
var id = $("select#category option:selected").attr('value');
$.post("select_type.php", {id:id}, function(data){//select_type.php is the "controller"
    $("select#type").html(data);
    });
});

But how to use controller in javascript(jquery)?I am not sure but will it works if i do like this:

$.post("posts/subcategories/getByCategory", {id:id}, function(data){

Answer 1

You could get the url like this using htmlhelper then it was would be a normal jquery call.

var url = <?php
    echo $this->Html->url(array(
    "controller" => "posts",
    "action" => "view"
));

?>;

http://book.cakephp.org/2.0/en/core-libraries/helpers/html.html#HtmlHelper::url