Alex,
I hit submit too early, I removed most of the real code to get it out of the
way and accidentally changed it before I was allowed to post again! evalJS
was not functioning either.
TJ,
But! If you do want to use Ajax.Request, you can just use
> Element.update[6] in your onSuccess handler to update the element; it
> will eval the scripts for you. If you end up needing to eval them for
> yourself for any reason, Prototype provides String.evalScripts[7] (and
> String.stripScripts[8]) to help.
>
I do want to use Ajax.Request for other reasons, but I did not know I could
do Element.update! I like it. I figured out I can use evalScripts(), but
it seems... quirky?
Thanks for all the help!
On Fri, Nov 7, 2008 at 1:10 AM, T.J. Crowder <[EMAIL PROTECTED]> wrote:
>
> Hi Jonathan,
>
> > new Ajax.Request('test.php', {
> > evalScripts: true,
>
> Ajax.Request doesn't have an evalScripts option[1][2], that's an
> option to Ajax.Updater[3].
>
> > I read in the api that you need to set the contentType to 'text/
> > javascript'...
>
> Only if you're sending back JavaScript. If you're sending back HTML
> with embedded script tags, you want text/html (which is probably the
> PHP default). I suspect you were looking at the evalJS option[1], but
> that's if what you're sending back is just script.
>
> Looking at your Ajax.Request, you can use Ajax.Updater instead.
> Here's a rough translation of your code:
>
> function doSomeRequest() {
> var err;
>
> err = $('canvas').innerHTML;
> new Ajax.Updater('canvas', 'test.php', {
> evalScripts: true,
> onFailure: function() {
> err = '<h1>Unable to connect to server, operation
> cancelled</h1>' + err;
> Element.update.defer('canvas', err);
> },
> onComplete: function() {
> showWait(false);
> }
> });
> }
>
> A couple of notes on that:
>
> 1. I've removed the onSuccess handler, because Ajax.Updater does what
> we wanted to do on success.
>
> 2. I've moved the showWait(false) to the onComplete handler, because
> that's fired regardless of the outcome and I assume we want to get rid
> of the wait indicator on both success and failure.
>
> 3. I've grabbed the content of the target before sending the request,
> because once we're in onFailure, we may or may not still have it
> (since most servers do send back content along with their 404s or 500s
> or whatnot). To use the previous content later, I used a closure for
> the onFailure handler, where otherwise you could (if you wanted to)
> make it a named function declared elsewhere. (It being a closure is
> not unusual and is unlikely to be a problem; if it is, you can get
> around that using Function.curry[4].)
>
> 4. In onFailure, I want to be sure my update showing the error
> supercedes any update Ajax.Updater may do automatically, so I queue it
> to run just a moment later using Function.defer[5]. Incredibly
> useful, is Function.defer. :-)
>
> But! If you do want to use Ajax.Request, you can just use
> Element.update[6] in your onSuccess handler to update the element; it
> will eval the scripts for you. If you end up needing to eval them for
> yourself for any reason, Prototype provides String.evalScripts[7] (and
> String.stripScripts[8]) to help.
>
> So many options! Barring some additional requirement, I'd go with
> Ajax.Updater. :-)
>
> [1] http://www.prototypejs.org/api/ajax/options
> [2] http://www.prototypejs.org/api/ajax/request
> [3] http://www.prototypejs.org/api/ajax/updater
> [4] http://www.prototypejs.org/api/function/curry
> [5] http://www.prototypejs.org/api/function/defer
> [6] http://www.prototypejs.org/api/element/update
> [7] http://www.prototypejs.org/api/string/evalscripts
> [8] http://www.prototypejs.org/api/string/stripscripts
>
> HTH,
> --
> T.J. Crowder
> tj / crowder software / com
>
> On Nov 7, 2:51 am, jonathon <[EMAIL PROTECTED]> wrote:
> > Hello,
> >
> > I'm having difficulty getting something to work. Perhaps someone will
> > know the solution?
> >
> > The function:
> >
> > new Ajax.Request('test.php', {
> > evalScripts: true,
> > onSuccess: function(transport) {
> > $('canvas').innerHTML = transport.responseText;
> > },
> > onFailure: function() {
> > err = '<h1>Unable to connect to server, operation
> cancelled</h1>';
> > $('canvas').innerHTML = err + $('canvas').innerHTML;
> > showWait(false);
> > }
> >
> > }
> >
> > I read in the api that you need to set the contentType to 'text/
> > javascript', so I did that in my php:
> >
> > <? header("Content-type: text/javascript"); ?>
> > <script type='text/javascript'>alert('hi');</script>
> >
> > I am never alerted though... Any ideas? Thanks!!!
> >
>
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