Kindly tell me how this Ajax code will work

[balasund.mca]

Hi,

 

In the frontend, upon clicking a button I get contact details through the below ajax script. Now I want to know what does the code inside this component do. Does it only read the contact details OR does it also write something in the database.

 

The code is this

 

<a href='javascript:void(0);' onclick="getDetails('MnP-JGckeyE+2222=1','JGckeyE%2222%3D1');"

 

function getDetails(rowId,uname)
{
try
    {
      ajaxRequest = createXmlHttpRequest(showContact,rowId);
    }
    catch(error)
    {
      ajaxRequest = null; return false;
    }
    var params = "?uname=" + encodeURIComponent(uname)+ "&sid="+ sid + "&xhr=1";
    ajaxRequest.open("GET",gbi("getContactNumUrl").value+params,true);
    ajaxRequest.send(null);
    return false;

}
function showContact(rowId)
{
  // when readyState is 4, we are ready to read the server response
  if (ajaxRequest.readyState==4)
  {
    // continue only if HTTP status is "OK"
    if (ajaxRequest.status == 200)
    {
      try
      {
        var html = ajaxRequest.responseText;
        gbi(rowId).innerHTML = html;
      }
      catch(e)
      {
        alert("Error reading the response: " + e.toString());
      }
    }
    else
    {
      alert("There was a problem retrieving the data:\n" +ajaxRequest.statusText);
    }
  }
}

[corbin]

Does it only read the contact details OR does it also write something in the database.

 

 

We can't know that without seeing the backend code.

[balasund.mca]

 

But from the variables that is passed, is it not possible to know whether is anything written to the DB?

 

 

[corbin]

I could guess, but as far as knowing for sure, of course it's not possible to know.