CommandButton: actions are called twice

[stephanrauh]

I noticed this in the tab demo. The action is called twice. Someone else reported a similiar issue concerning datatable. Might be a general problem.

[XaeroDegreaz]

I'm also seeing this problem.

However, when I have a commandButton using a standard value for a label like:

<b:commandButton
    value="UP"
    action="#{questionPage.changeOrder('up', question, assessmentGroup)}"
    ajax="true"
    update="@form"
    rendered="#{question.questionOrder ne 1}" />

It does not double trigger.

If I use one with a glyphicon:

<b:commandButton
    icon="arrow-up"
    action="#{questionPage.changeOrder('up', question, assessmentGroup)}"
    ajax="true"
    update="@form"
    rendered="#{question.questionOrder ne 1}" />

I can reliably get it to double-trigger when clicking on the icon directly but if I click on the button outside the icon, then it does not double-trigger.

[stephanrauh]

Interesting. I looked for the error at a different part of the source code. The tab demo is a non-AJAX commandButton without icon. I'll keep it in mind, anyways - you might be up to something.

[stephanrauh]

Non-AJAX commandButtons generate HTML code that calls BsF.ajax.cb(this, event); without adding return false;. That amount to calling an AJAX request, followed suite by a traditional non-AJAX request. Removing the AJAX call solves the problem. Thing is, I'm sure the code in AJAXRenderer, lines 183-214, serves a purpose, so simply removing it is no good.

[stephanrauh]

I've fixed the bug and uploaded a developer snapshot to Maven Central.

@XaeroDegreaz The bug I've found has nothing to do with the glyphicon. Would you mind to test your code again to verify the bug has been solved? If not, please reopen the issue. See #151 on how to get the developer snapshot.

[saptarshibasu]

Yes. The bug is fixed. I was facing the same issue since last week. Just now I have tested with the new jar and have found it working. The issue was happenning with Chrome only.

[stephanrauh]

Great! Thanks for giving us feedback!