ResponseText应该是json_encode，而不是Cakephp中的HTML

Question

I am trying to display the number of rows of the table. In the controller, I have a function like:

public function index(){
  $count= $moviecount = $this->Media->find('count');
  $this->set(array('data' => $count, '_serialize' => 'data'));
}

In my index.ctp, I have a regular HTML script with divs and everything. Here in my JavaScript file, I do something like this.

function checkTbl(){
checkBrowser();//callback function
xmlhttprequestobject.open("GET", "/url/", false); //async
xmlhttprequestobject.onreadystatechange = function(){
if(xmlhttprequestobject.readyState==4 && xmlhttprequestobject.status==200){
  alert(xmlhttprequestobject.responseText);
}
}
xmlhttprequestobject.send();
}

but when I click the image event onClick, the response is HTML, not the integer value of the count. please help.

Answer 1

Are you loading the RequestHandler component? If you don't call the URL with the .json extension you have to manually set the view to respond as json. If you parse the extensions using the router you'll automatically get a json response if the component is loaded. Did you follow the instructions on this page ?

Answer 2

If you want resposeText as json_encode then try something like this in your controller function.By using this you'll not need .ctp file.

 public function index()
 {
     $count= $moviecount = $this->Media->find('count');
     //$this->set(array('data' => $count, '_serialize' => 'data'));
    return new CakeResponse(array('body' => json_encode($count)));
 }