[FX.php List] Problem with double submissions

[Andy Gaunt]

Hey Bob,

Why not disable the button instead?

You can do this with jQuery if you are using it or just adding an onClick to the element

onclick="this.disabled=true;"

jQuery might look like:


$('#yourform').submit(function(){
    $('input[type=submit]', this).attr('disabled', 'disabled');
});


You could also change the value of the submit button to "Processing..." or something similar as well to give the end user some feedback that the page is working


HTH


Andy Gaunt 
T: 321-206-3658 
andy at fmpug.com 

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On Sep 27, 2010, at 11:09 AM, Bob Patin wrote:

> I've got a problem with a client's web server that sometimes slows down so much that customers are double-submitting their orders, causing their card to get hit twice.
> 
> Here's what *should* happen on a well-behaved web server:
> 
> Page submits, Authorize.net runs the charge, order gets updated in FileMaker with the transactionID.
> Customer goes to the confirmation page, where they see a printable invoice
> Session variable gets destroyed
> 
> BUT HERE'S WHAT HAPPENS:
> The web server, for which I have no control and no faith, seems to time out sometimes on this page, where auth.net processes the card.
> 
> I've been trying to write a Javascript function to prevent double submissions; here's what I'm trying:
> 
> On my button, which is an image, I have this:
> 
> <input type="image" name="mySubmit" src="images/process_cc.jpg" alt="ticket_cc_process.php" width="180" height="32" onclick="javascript: return check_submit();">
> 
> Then, here's my JS function:
> 
> <script language="Javascript">
> function check_submit (){
> 	if (document.form1.form_submitted.value == 1){
> 		alert("Don't submit twice. Please wait.");
> 		return false;
> 	}else{
> 		document.form1.form_submitted.value = 1;
> 		return true;
> 	}
> }
> 
> </script>
> 
> So my problem is that I can't get the form to time out, giving me enough time to see whether this actually works--customers seem to be able to, but not me.
> 
> QUESTION:
> Is there a better way to do this, better code, better method?
> 
> Thanks,
> 
> 
> Bob Patin
> Longterm Solutions
> bob at longtermsolutions.com
> 615-333-6858
> http://www.longtermsolutions.com
> iChat: bobpatin
> FileMaker 9, 10 & 11 Certified Developer
> Member of FileMaker Business Alliance and FileMaker TechNet
> --
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