Prevent repeated clicks on submit button

[nbarnum]

We use the contact form that comes with Prestashop.  The form doesn't have anything to prevent a user from clicking the submit form multiple times.  We've gotten sometimes 18 messages at one time before.  Is there anyway this can be corrected?  I know there's a way to disable to button after clicking it on the client side but I was hoping to also prevent this on the server side.

{literal}
<script>
$(function()
{
  $('#myform').submit(function(){
    $("input[type='submit']", this)
      .val("Please Wait...")
      .attr('disabled', 'disabled');
    return true;
  });
});
</script>
{/literal}

I tried using this code but it prevents the entire form from completing.

[rocky]

What version of PrestaShop are you using? PrestaShop version v1.6 has code in the PHP file that checks whether the message is the same as the previous message and displays "Your message has already been sent" if it is. I guess your version doesn't have that code?

 

I guess you could put some code on the button itself like onclick="$(this).attr('disabled', 'disabled')".