Want to save shopping cart as XML object

[JCGrafted]

I am writing a store from scratch. I was using cookies. Worked great for mini-cart but found it not flexible enough for cart. I am trying to use XML instead. I am an XML newbie.

The following works in IE but nowhere else.​

<script language="javascript" type="text/javascript">

function init()
{
  var xmlDoc;
  //code for IE
  if (window.ActiveXObject)
  {
    xmlDoc = new ActiveXObject("MSXML2.DOMDocument"); //("Microsoft.XMLDOM")
  }
  //code for Mozilla, Firefox, Opera, etc.
  else if (document.implementation.createDocument)
  {
    xmlDoc = document.implementation.createDocument("","",null);
  }
  else
  {
    alert('Your browser cannot handle this script');
  }
  xmlDoc.async = false;
  xmlDoc.loadXML("<root/>");


  var rootNode = xmlDoc.documentElement;

  //Add member and set attributes
  var memberNode = xmlDoc.createElement("member");
  rootNode.appendChild(memberNode);
  memberNode.setAttribute("id", "1");
  memberNode.setAttribute("name", "george");

  //Add item and set attributes
  var itemNode = xmlDoc.createElement("item");
  memberNode.appendChild(itemNode);
  itemNode.setAttribute("id", "1");
  itemNode.setAttribute("code", "1");
  itemNode.setAttribute("description", "Conference Full");
  itemNode.setAttribute("price", "150");

  //Add guest and set attributes
  var guestNode = xmlDoc.createElement("guest");
  memberNode.appendChild(guestNode);
  guestNode.setAttribute("id", "1");
  guestNode.setAttribute("name", "sally");

  //Add guest item and set attributes
  itemNode = xmlDoc.createElement("item");
  guestNode.appendChild(itemNode);
  itemNode.setAttribute("id", "5");
  itemNode.setAttribute("code", "7");
  itemNode.setAttribute("description", "T-shirt M");
  itemNode.setAttribute("price", "10");

  
  //Show xml contents
  var memberNodeList = rootNode.getElementsByTagName("member");
  for (var i=0;i<memberNodeList.length;i++)
  {
    var totalPrice = 0;
    var memberName = memberNodeList[i].getAttribute("name");
    document.write("Member: " + name);
    var itemNodeList = memberNodeList[i].getElementsByTagName("item");
    for (var j=0;j<itemNodeList.length;j++)
    {
      var itemDescription = itemNodeList[j].getAttribute("description");
      var itemPrice = itemNodeList[j].getAttribute("price");
      totalPrice += parseFloat(itemPrice);
      document.write("<br/>&nbsp;&nbsp;" + itemDescription + " " + itemPrice);
    }
    var guestNodeList = memberNodeList[i].getElementsByTagName("guest");
    for (var j=0;j<guestNodeList.length;j++)
    {
      var guestName = guestNodeList[j].getAttribute("name");
      document.write("<br/>&nbsp;&nbsp;Guest: " + guestName);
      itemNodeList = guestNodeList[i].getElementsByTagName("item");
      for (var k=0;k<itemNodeList.length;k++)
      {
        var itemDescription = itemNodeList[k].getAttribute("description");
        var itemPrice = itemNodeList[k].getAttribute("price");
        totalPrice += parseFloat(itemPrice);
        document.write("<br/>&nbsp;&nbsp;&nbsp;&nbsp;" + itemDescription + " " + itemPrice);
      }
    }
    document.write("<br/>Total = " + totalPrice + "<br/><br/>");
  }
}
</script>

 

[Diancecht]

Well, I see this as a Javascript problem. What do you mean by "not work"?

Cheers,
Dian

 

[JCGrafted]

In IE the page displays the following:

Member:
Conference Full 150
T-shirt M 10
Guest: sally
T-shirt M 10
Total = 170

In all others it displays nothing.

This is just a basic start. I want to make sure I can create an XML object and that I can programmatically add, remove, and display from it. Then I will plug in the code that before wrote to the cookie.

Jonathan

http://www.saa-recovery.org

 

[JCGrafted]

I got it!

I am pasting what worked in case anyone else is having a similar problem.

If anyone has a better solution I would still like to hear it.

<script language="javascript" type="text/javascript">

var text = "";
var xmlDoc;

function init()
{
  //code for IE
  if (window.ActiveXObject)
  {
    xmlDoc = new ActiveXObject("MSXML2.DOMDocument"); //("Microsoft.XMLDOM")
    xmlDoc.async = false;
    xmlDoc.loadXML("<root/>");
  }
  //code for Mozilla, Firefox, Opera, etc.
  else if (document.implementation && document.implementation.createDocument)
  {
    parser=new DOMParser();
    xmlDoc=parser.parseFromString(text,"text/xml");
  }
  else
  {
    alert('Your browser cannot handle this script');
  }


  var rootNode = xmlDoc.documentElement;

  //Add member and set attributes
  var memberNode = xmlDoc.createElement("member");
  rootNode.appendChild(memberNode);
  memberNode.setAttribute("id", "1");
  memberNode.setAttribute("name", "george");

  //Add item and set attributes
  var itemNode = xmlDoc.createElement("item");
  memberNode.appendChild(itemNode);
  itemNode.setAttribute("id", "1");
  itemNode.setAttribute("code", "1");
  itemNode.setAttribute("description", "Conference Full");
  itemNode.setAttribute("price", "150");

  //Add guest and set attributes
  var guestNode = xmlDoc.createElement("guest");
  memberNode.appendChild(guestNode);
  guestNode.setAttribute("id", "1");
  guestNode.setAttribute("name", "sally");

  //Add guest item and set attributes
  itemNode = xmlDoc.createElement("item");
  guestNode.appendChild(itemNode);
  itemNode.setAttribute("id", "5");
  itemNode.setAttribute("code", "7");
  itemNode.setAttribute("description", "T-shirt M");
  itemNode.setAttribute("price", "10");

  //Show xml contents
  var memberNodeList = rootNode.getElementsByTagName("member");
  for (var i=0;i<memberNodeList.length;i++)
  {
    var totalPrice = 0;
    var memberName = memberNodeList[i].getAttribute("name");
    document.write("Member: " + name);
    var itemNodeList = memberNodeList[i].getElementsByTagName("item");
    for (var j=0;j<itemNodeList.length;j++)
    {
      var itemDescription = itemNodeList[j].getAttribute("description");
      var itemPrice = itemNodeList[j].getAttribute("price");
      totalPrice += parseFloat(itemPrice);
      document.write("<br/>&nbsp;&nbsp;" + itemDescription + " " + itemPrice);
    }
    var guestNodeList = memberNodeList[i].getElementsByTagName("guest");
    for (var j=0;j<guestNodeList.length;j++)
    {
      var guestName = guestNodeList[j].getAttribute("name");
      document.write("<br/>&nbsp;&nbsp;Guest: " + guestName);
      itemNodeList = guestNodeList[i].getElementsByTagName("item");
      for (var k=0;k<itemNodeList.length;k++)
      {
        var itemDescription = itemNodeList[k].getAttribute("description");
        var itemPrice = itemNodeList[k].getAttribute("price");
        totalPrice += parseFloat(itemPrice);
        document.write("<br/>&nbsp;&nbsp;&nbsp;&nbsp;" + itemDescription + " " + itemPrice);
      }
    }
    document.write("<br/>Total = " + totalPrice + "<br/><br/>");
  }
}
</script>

Jonathan

http://www.saa-recovery.org