i am working on a Cakephp 2.x ....actually what i want is i am showing a battery level on my view page and memory usage too... so the battery and memory is keeps on changing after some seconds or minutes ... so i dont want user to refresh or reload the page evry time and checks the status of these two ... so i want to get the data from db in ajax or jquery and show them to the user ... i know the syntax of sending form data and then return in ajax ... but here i am not sending anything .. there are other things too on my page in which i need a data in ajax ... help me ... if anyone has implemented this before then please share it
In the controller do your logic and then return an ajaxResponse.
class FooController extends AppController{
public $components = array("RequestHandler");
//... Other actions here
public function getSysParams(){
if($this->RequestHandler->isAjax()){
//Your logic here, example:
$sysInfo = $this->Foo->find('first', array('fields'=>array('battery', 'cpu'));
//Return the data to AJAX call using json_encode
return new CakeResponse(array('type' => 'application/json',
'body' => json_encode(array('battery' => $sysInfo['Foo']['battery'], 'cpuUsage'=>$sysInfo['Foo']['cpu']),
JSON_FORCE_OBJECT),
'charset' => 'UTF-8')
);
}
}
}
And then in the js it will come like this:
{'battery':"33%", 'cpuUsage':"80%"}
I've tested it on CakePHP 2.3 and it works. On previous versions I'm not sure.
This is the JavaScript part using jQUery:
$.ajax({
url: '/Foo/getSysParams'
data: {'foo': 'bar'}, //Any data you want to send
success: function(dataReturned){
$("div#update").text(dataReturned.battery);
$("div#update2").text(dataReturned.cpuUsage);
}
});