php - CakePHP and Ajax request url -

I am currently using AJAX in many controllers in my application. I have implemented AJAX functionality using the jQuery supported version.

  $ Ajax ({url: 'getCountries', type: "post", data type: "html", data: "data =" + result, success: function (data) {// magic ...}}});   
 As you can see from the code above the URL of this request, 'getcountries' means that if the request  
  http: / / localhost / appname / controllername / methodname   
 so the url request  the 
  http: // localhost / appname / controllername / getcountries   
 However, if you are different than the example above URL using this script, I  
  http: // localhost / appname / controllername / methodname / 7   
 (such as in editing view), then those URAs The Ajax call request URL will change  
  http: // localhost / appname / controllername / methodname / getcountries   
 how do I create it myself so request URLs can be automatically dependent. At present I'm on the controller?  
 Please note that the URL path has the name of the root folder of the  appname  application and it should also be included so that the files will be moved to a different server / location. Links will be compatible with the root folder   
 
 
 Try this one  
  $ .ajax ({url: "& lt ;? php echo $ this-> webroot $ this-> parameter [" controller "];? & Gt; / yourAction"});   
  $ this-> The webroot for example includes paths on your webstrot if your app folder is htdocs / test and you  localhost / test /   $ this- & gt;