Admin: 3 revisions imported

2016-04-06T20:20:29Z

3 revisions imported

New page

Occasionally if the server is slow, a user will click the "Update Ticket" button multiple times. This will result in multiple transactions. I prevent this using some Javascript code (adapted from code in an article at [http://www.netlobo.com/disable_form_buttons.html Netlobo.com]). Note that this hack is only to prevent an RT user from mistakenly posting several responses. It will not prevent a malicious user from making multiple updates. This has been tested with RT 3.8.8 in Firefox 3, Google Chrome 8, and Internet Explorer 8.

Create a javascript file called [local]/html/NoAuth/js/disableSubmit.js with the following:
function disableSubmit(whichButton)
{
if (document.getElementById)
{
// this is the way the standards work
document.getElementById(whichButton).style.visibility = 'hidden';
}
// else, old browser.
}

Add the bolded line to your [local]/html/Elements/HeaderJavascript file:
<script type="text/javascript" src="<%RT->Config->Get('WebPath')%>/NoAuth/js/scriptaculous/scriptaculous.js?load=effects,controls"></script>
'''''<script type="text/javascript" src="<%RT->Config->Get('WebPath')%>/NoAuth/js/disableSubmit.js"></script>'''''

% if ( RT->Config->Get('MessageBoxRichText', $session{'CurrentUser'}) ) {

Modify the line in [local]/html/Ticket/Update.html. Original text:
'''''<& /Elements/Submit, Label => loc('Update Ticket'), Name => 'SubmitTicket' &>'''''
% if ($TicketObj->CurrentUserHasRight('ShowOutgoingEmail')) {
<&|/Widgets/TitleBox, title => loc('Scrips and Recipients') &>
<& /Ticket/Elements/PreviewScrips, TicketObj => $TicketObj, %ARGS &>
</&>
Change to the following:
'''''<& /Elements/Submit, Label => loc('Update Ticket'), Name => 'SubmitTicket', OnClick => "javascript:disableSubmit('mFormSubmit')", id => 'mFormSubmit' &>'''''
% if ($TicketObj->CurrentUserHasRight('ShowOutgoingEmail')) {
<&|/Widgets/TitleBox, title => loc('Scrips and Recipients') &>
<& /Ticket/Elements/PreviewScrips, TicketObj => $TicketObj, %ARGS &>

Now (after restarting the http server), clicking the "Update Ticket" button should cause the button to disappear and the ticket to update.

173.10.126.249 at 16:26, 20 December 2010

2010-12-20T16:26:26Z

New page

Occasionally if the server is slow, a user will click the "Update Ticket" button multiple times. This will result in multiple transactions. I prevent this using Javascript. Note that this hack is only to prevent an RT user from mistakenly posting several responses. It will not prevent a malicious user from making multiple updates. This has been tested with RT 3.8.8 in Firefox 3, Google Chrome 8, and Internet Explorer 8.

Create a javascript file called [local]/html/NoAuth/js/disableSubmit.js with the following:
function disableSubmit(whichButton)
{
if (document.getElementById)
{
// this is the way the standards work
document.getElementById(whichButton).style.visibility = 'hidden';
}
// else, old browser.
}

Add the bolded line to your [local]/html/Elements/HeaderJavascript file:
<script type="text/javascript" src="<%RT->Config->Get('WebPath')%>/NoAuth/js/scriptaculous/scriptaculous.js?load=effects,controls"></script>
'''<script type="text/javascript" src="<%RT->Config->Get('WebPath')%>/NoAuth/js/disableSubmit.js"></script>
'''
% if ( RT->Config->Get('MessageBoxRichText', $session{'CurrentUser'}) ) {

Modify the line in [local]/html/Ticket/Update.html. Original text:
'''<& /Elements/Submit, Label => loc('Update Ticket'), Name => 'SubmitTicket' &>'''
% if ($TicketObj->CurrentUserHasRight('ShowOutgoingEmail')) {
<&|/Widgets/TitleBox, title => loc('Scrips and Recipients') &>
<& /Ticket/Elements/PreviewScrips, TicketObj => $TicketObj, %ARGS &>
</&>
Change to the following:
'''<& /Elements/Submit, Label => loc('Update Ticket'), Name => 'SubmitTicket', OnClick => "javascript:disableSubmit('mFormSubmit')", id => 'mFormSubmit' &>'''
% if ($TicketObj->CurrentUserHasRight('ShowOutgoingEmail')) {
<&|/Widgets/TitleBox, title => loc('Scrips and Recipients') &>
<& /Ticket/Elements/PreviewScrips, TicketObj => $TicketObj, %ARGS &>

Now (after restarting the http server), clicking the "Update Ticket" button should cause the button to disappear and the ticket to update.

PreventDoubleUpdate - Revision history

Admin: 3 revisions imported

173.10.126.249 at 16:26, 20 December 2010