This is because your code is synchronous and the request is asynchronous. To
explain your making a request it first in the background. After it fires
your javascript continues executing and returns an undefined feed variable.
When the onSuccess fires fetch has already processed and you have no means
of accessing 'feed'.
So you have two options
1. you can make your request synchronous by adding async : false to your
request object.
2. you can have onSucces call another function like process. something like
onSuccess : this.process.bind(this).
Then in your object a simple process method.
process : function(responseText){
}
Personally I would avoid blocking your code using method 1. Its not a wise
approach.
Method 2 will provide you will greater control and flexibility.
On Thu, Sep 18, 2008 at 4:40 PM, VirtuosiMedia <[EMAIL PROTECTED]>wrote:
>
> It's close, but not quite what I meant. I'd like to be able to access
> the response after the request has already been made, preferably
> outside of the Request object. It's for an RSS reader, so I need to do
> some parsing and Request is just being used to get the feed from a
> server file. This function is a method in a class, which should return
> the response in a string, but it isn't returning anything but
> undefined:
>
> fetch: function(site){
> var feed;
> var req = new Request({
> method: this.options.method,
> url: this.options.rssFetchPath,
> data: { 'url' : site },
> onRequest: function() {
> if (this.options.targetId) { $
> (this.options.targetId).setProperty('html',
> this.options.onRequestMessage); }
> }.bind(this),
> onSuccess: function(responseText) {
> feed = responseText;
> }
> });
> req.send();
> return feed;
> }
>
> On Sep 18, 1:21 pm, "Iván N Paz" <[EMAIL PROTECTED]> wrote:
> > Taking this code as an example:
> >
> > new Request.HTML(
> > {
> > url:'some/url/script.php',
> > evalScripts:true,
> > async:false,
> > autoCancel:true,
> >
> > onSuccess: function(html) {
> > //html processing here....
> > alert(html);
> > },
> >
> > onFailure: function() {
> > alert('Error');
> > }
> > }
> > ).get();
> >
> > I would just take the html node listing, process it in whatever way I
> > want, then inject it....
> >
> > Is that what you meant???
> >
> > On 9/18/08, VirtuosiMedia <[EMAIL PROTECTED]> wrote:
> >
> >
> >
> > > Just in general, how do you access the response from the Request
> > > object? I've been looking at the documentation and the MooTorial, but
> > > I can't seem to make any headway. Other Ajax stuff I've done with
> > > MooTools I haven't had to manipulate the response at all, so I've just
> > > been able to inject it straight into the document, but now I need to
> > > make some changes to it first. Any help would be greatly appreciated.
> > > Thanks.
> >
> > --
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>
