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January 25th, 2008, 05:17 PM
#1
[RESOLVED] I need help with AJAX
My AJAX code is not working please help.
Please ignore syntax error(s) just get the idea.
Below is my AJAX code:
Code:
/**
* @author cloud
*/
var pointer;
function userStatus(method, url, asynchronus)
{
/*
* Data members/Field members
*/
pointer=this;
this.MAX_HTTPRequestObjects=4;
this.log=document.getElementById("logMessages");
this.url=url;
this.method=method;
this.asynchronus=asynchronus;
this.index=0;
this.XMLHTTPRequestObjects=new Array();
this.memberName="";
this.memberNumber="";
this.memberData="";
this.buddyData="";
this.blogEntries="";
/*
* Initialize data mebers/Field members
*/
this.getXMLHTTPRequestObjects();
this.getMemberData();
this.getBuddyData();
this.getBlogEntries();
}
UserStatus.prototype.getXMLHTTPRequestObjects = function(){
// Is it for Firefox, Safari, Opera, etcs ?
try
{
for (var i = 0; i < pointer.MAX_XMLHTTPRequestObjects; i++) this.xmlHTTPRequestObjects[i] = new XMLHttpRequest();
}
catch (e)
{
/*
* It is for Internet Explorer ?
*/
try
{
for (var i = 0; i < pointer.MAX_XMLHTTPRequestObjects; i++) pointer.xmlHTTPRequestObjects[i] = new ActiveXObject("Msxml2.XMLHTTP");
}
catch (e)
{
try
{
for (var i = 0; i < pointer.MAX_XMLHTTPRequestObjects; i++) pointer.xmlHTTPRequestObjects[i] = new ActiveXObject("Microsoft.XMLHTTP");
}
catch (e)
{
window.alert("Your browser does not support AJAX.");
}
}
}
};
UserStatus.prototype.getData(url, method, asynchronus)
{
this.XMLHttpRequestObjects[this.index].onreadystatechange=this.processData;
this.XMLHttpRequestObjects[this.index].open(method.toUpperCase(), url, asynchronus);
this.XMLHttpRequestObjects[this.index].send(null);
};
UserStatus.prototype.processData=function()
{
if (pointer.index==xml.MAX_XMLHTTPRequestObjects-1) return;
if (pointer.xmlHTTPRequestObjects[pointer.index].readyState==0) pointer.logMessage("Request not initialize.");
else if (pointer.xmlHTTPRequestObjects[pointer.index].readyState==1) pointer.logMessage("Request been setup.");
else if (pointer.xmlHTTPRequestObjects[pointer.index].readyState==2) pointer.logMessage("Request has been sent.");
else if (pointer.xmlHTTPRequestObjects[pointer.index].readyState==3) pointer.logMessage("Request is process.");
else if (pointer.xmlHTTPRequestObject.readyState==4)
{
if (pointer.index==0) parseMemberData(pointer.xmlHTTPRequestObject[pointer.index].responseText);
else if (pointer.index==1) parseBuddyData(pointer.xmlHTTPRequestObject[pointer.index].responseText);
else if (pointer.index==2) parseBlogentries(pointer.xmlHTTPRequestObject[pointer.index].responseText);
}
pointer.index++;
};
UserStatus.prototype.getMemberData=function (method, url, aysynchronus)
{
this.getData(method, url, asynchronus);
};
UserStatus.prototype.getBuddyData=function (method, url, asynchronus)
{
this.getData(method, url, asynchronus);
};
UserStatus.prototype.getBlogEntries=function (method, url, asynchronus)
{
this.getData(method, url, asynchronus);
};
UserStatus.prototype.parseMemberData=function (memberData)
{
/*
* Parse member data in here
*/
};
userStatus.prototype.parseBuddyData=function (buddyData)
{
/*
* Parse buddy data in here
*/
};
UserStatus.prototype.parseBlogEntries=function (blogEntries)
{
/*
* Parse blog entries in here
*/
};
UserStatus.prototype.logMessage=function (message)
{
this.log.value=this.log.value+messsage+"\n";
}
Here is one of the error:
Code:
[Exception... "Component returned failure code: 0xc1f30001 (NS_ERROR_NOT_INITIALIZED) [nsIXMLHttpRequest.send]" nsresult: "0xc1f30001 (NS_ERROR_NOT_INITIALIZED)" location: "JS frame ::" data: no]
Here is the other error:
I get different responses for different requests
I need help resolving these error.
I solved the problem. The idea was right, but there was a logical error.
I should have used a loop to check an array of xhr objects and use the loop
counter as an index to direct the appropriate responses to the appropriate destinations.
Last edited by cloud1; January 27th, 2008 at 01:31 AM.
Reason: Problem got resolved
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