Utilizing Prototype's $() function to parse responseXML

Question

Utilizing Prototype's $() function to parse responseXML

After receiving XML data through an Ajax.Request in the Ajax.Response.responseXML, I have encountered a situation where my XML includes XHTML tags that I would like to add to my document.

However, I am facing difficulties when trying to append nodes from the responseXML into the current document. This issue arises because these are considered XML nodes rather than DOM nodes.

Even wrapping the responseXML in $() doesn't provide an extended version of the nodes, and there is no clarification in the documentation regarding this matter.

I am curious to know if Prototype offers any specific methods to handle the responseXML. If not, I would appreciate insights on a cross-browser approach to parse the response and utilize it effectively.

javascript xml ajax xml-parsing prototypejs

Answer 1

Answer №1

Even though I initially considered Christian's response to be the definitive one, a colleague introduced me to an alternative method for parsing an XML reply using Prototype.

Instead of relying on responseXML, you can create an Element and then populate it with the responseText through the use of update(). This allows you to utilize functions like select() to navigate through the nodes.

Answer 2

Even though I initially considered Christian's response to be the definitive one, a colleague introduced me to an alternative method for parsing an XML reply using Prototype.

Instead of relying on responseXML, you can create an Element and then populate it with the responseText through the use of update(). This allows you to utilize functions like select() to navigate through the nodes.

Answer 3

Answer №2

Prototype does not offer a built-in method for XML parsing. It is also not possible to extend the XML using $(xml) and navigate through the DOM with .next(), .select(), etc.

Take a look at this snippet of code where I manually parsed some XML data for spell check results in a recent project, which could serve as a starting point for you:

parseResults: function(results) {
var c = results.responseXML.getElementsByTagName('c');
var corrections = $A(c);
if(!corrections.size()){
  this.link.insert({ after: '<span class="spellCheckNoErrors">No spelling errors</span>' });
  (function(){ this.link.next().remove(); }.bind(this)).delay(1);
  return null;
}
this.res = $A();
corrections.each(function(node){
  sugg = node.childNodes[0].nodeValue;
  offset = node.attributes[0].nodeValue;
  len = node.attributes[1].nodeValue;
        this.res.push(
    $H({
      word: this.text.substr(offset, len),
      suggestions: sugg.split(/\s/)
          })
  );
},this);
this.overlay();
},

Answer 4

Prototype does not offer a built-in method for XML parsing. It is also not possible to extend the XML using $(xml) and navigate through the DOM with .next(), .select(), etc.

Take a look at this snippet of code where I manually parsed some XML data for spell check results in a recent project, which could serve as a starting point for you:

parseResults: function(results) {
var c = results.responseXML.getElementsByTagName('c');
var corrections = $A(c);
if(!corrections.size()){
  this.link.insert({ after: '<span class="spellCheckNoErrors">No spelling errors</span>' });
  (function(){ this.link.next().remove(); }.bind(this)).delay(1);
  return null;
}
this.res = $A();
corrections.each(function(node){
  sugg = node.childNodes[0].nodeValue;
  offset = node.attributes[0].nodeValue;
  len = node.attributes[1].nodeValue;
        this.res.push(
    $H({
      word: this.text.substr(offset, len),
      suggestions: sugg.split(/\s/)
          })
  );
},this);
this.overlay();
},

Utilizing Prototype's $() function to parse responseXML

Answer №1

Answer №2

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