Ajax would only be necessary if you want a status bar that reflects
accurately the progress. You can probably get by with something
simpler. I would write some Javascript that is triggered on clicking
the submit button that replaces the button with this graphic:
http://yesmagazine.org/store/images/pleasewait.gif
Your Javascript looks like this:
?>
<script language="javascript" type="text/javascript"><!--
function SubmitOrderButton(){
document.getElementById("submitmain").style.display = "none";
if (navigator.appName == "Microsoft Internet Explorer") {
document.getElementById("pleasewait").innerHTML = "";
document.getElementById("pleasewait").style.display = "block";
document.getElementById("pleasewait").innerHTML = "<img src='images/
pleasewait.gif' alt='Please Wait'>";
} else {
document.getElementById("pleasewait").style.display = "block";
}
}
//--></script>
And your HTML code looks like this:
<div id="submitmain" class="buttonRow forward">
<input type="submit" name="btn_submit" value="Confirm Order"
class="checkout_button" />
</div>
<div id="pleasewait" class="buttonRow forward" style="display:none">
<img src="/images/pleasewait.gif"><br />
Please wait while your request is being processed...
</div>
Cheers,
Kevin Audleman
On Feb 18, 2:52 pm, Malcolm Tredinnick <malc...@pointy-stick.com>
wrote:
> On Wed, 2009-02-18 at 12:20 +0000, Adam Stein wrote:
> > Maybe somebody can suggest how to get the functionality I'm trying to
> > duplicate. I looked and can't find anything that seemed similiar.
>
> > I have a form with checkboxes. User selects one or more and submits the
> > form. The processing currently goes like this:
>
> > 1) Write JavaScript to display moving progress bar
> > 2) Process based on checked boxes (which in my specific example is to
> > copy the specified databases into a sandbox area)
> > 3) Write JavaScript to turn off progress bar
>
> > The database copying is short, up to about 20 seconds. Short enough to
> > let the user wait, long enough that I want to indicate the computer
> > hasn't frozen :-{}
>
> > It seems that I can only return HTML to be displayed once from a view.
> > Is there a way to get the functionality described above somehow?
>
> It's called AJAX. You have to keep asking the server for an update and
> then updating the page.
>
> Regards,
> Malcolm
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