Joomla 2.5 Ajax component not working - ajax

Question

I've been trying for ages to get Json working in Joomla and I just can't do it. I think I've tried every combination of URL etc so any help would be great:
this is for the admin side structure looks like
admin
-controllers
--orderitem.php
-views
--orderitem
---tmpl
----orderitem.php
-controller.php
function updateNow(newrefresh) {
var dataJSON = JSON.encode (newrefresh);
var request = new Request.JSON({
method: 'post',
url: 'index.php?option=com_customersitedetails&view=orderitem&task=refreshscreen&format=raw',
data: {
json: dataJSON
},
onComplete: function(jsonObj) {
alert("Your form has been successfully submitted ");
}
}).send();
};
Although runs the alert box it doesn't retun JSON just
View not found [name, type, prefix]: orderitem, raw, customersitedetailsView
Any ideas where I can start? thanks

Answer 1

You're missing views/orderitem/view.raw.php containing a CustomersitedetailsViewOrderitem class.
views/orderitem/view.raw.php
class CustomersitedetailsViewOrderitem extends JViewLegacy
{
public function display($tpl = null)
{
$response = 'Your magic response here';
echo $response;
JFactory::getApplication()->close();
}
}

Answer 2

You can look here for proper ajax call in joomla
How to Write PHP in AJAX
inside your controllers you should have a file "mycall.json.php" this file will process and return a json format of your ajax call
Joomla doesn't gives a build in AJAX as part of it's system. my answer is from Josef Leblanc course in lynda.com
http://www.lynda.com/Joomla-1-6-tutorials/Joomla-1-7-Programming-and-Packaging-Extensions/73654-2.html
As I said :
Write this i the frontend JS :
$.ajax({
type: 'GET',
url: 'index.php',
data: {option: 'com_componenetname', task: 'taskname.youroperation', format: 'json', tmpl: 'raw'},
dataType: 'json',
async: true, // can be false also
error: function(xhr, status, error) {
console.log("AJAX ERROR in taskToggleSuceess: ")
var err = eval("(" + xhr.responseText + ")");
console.log(err.Message);
},
success: function(response){
// on success do something
// use response.valuname for server's data
}
,
complete: function() {
// stop waiting if necessary
}
});
in the backend you should have a file under com_componentname/controllers/taskname.json.php
the file should look like this
class ComponentnameControllerTaskname extends JControllerLegacy (Legacy only J3.0)
{
public function __construct($config = array())
{
parent::__construct($config);
$this->registerTask('operationname', 'functionname');
}
public function functionname() {
// do something in backend
echo json_encode(array(''var1' => val1, 'var2' => val2 ) );
}
}
nibra - I use this in all my joomla sites and its working perfect. your comment was wrong, pease give me my credit back