[Building Sakai] Debugging Javascript & Velocity

[Adrian Fish]

Kudos to Miguel. I didn't know that ...

Cheers,
Adrian.


On 25 April 2013 09:24, Daniel Merino <daniel.merino at unavarra.es> wrote:

>  Hi, David & Adrian.
>
> Thanks to Miguel Carro from Samoo I have managed to solve it.
>
> Newer versions of Velocity use a new variable to prevent cross-site
> scripting. It seems that 2.7 Velocity did not use it, but in 2.9 it does.
>
> Adding the next line inside <form> tag in my vm file:
>
> <input type="hidden" name="sakai_csrf_token" value="$sakai_csrf_token" />+
>
>
> fixes my issue.
>
> Still I don't imagine how could I have detected this by my own means, but
> at least it is solved. :-)
>
> Thanks a lot.
> Best regards.
>
> El 24/04/2013 15:17, David Adams escribió:
>
> If there are no problems on the Javascript side, then if  possible, check
> the web server access logs to be sure that a request is being made when you
> click the button (though you should also be able to see this in
> Firebug/Chrome Dev Tools). If you know how to hook up Eclipse to do live
> debugging, that's probably the most useful thing you could do if a request
> is making it through. Or if you're not set up for that, just tossing in
> some logging statements in the code you expect to be called is usually what
> I end up doing (since I've never bothered to learn Eclipse).
>
>  David Adams
> Director, Systems Integration and Support
> Virginia Tech Learning Technologies
>
>
> On Wed, Apr 24, 2013 at 6:39 AM, Daniel Merino <daniel.merino at unavarra.es>wrote:
>
>>  Hi, David.
>>
>> I'm currently using Firebug 1.11.2 with Firefox 19.0.2, but console does
>> not show errors when I click over the button, only lots of warnings that
>> does not seem to be related with this issue.
>>
>> Maybe is a velocity issue, but I don't know how to check this.
>>
>> Thanks for your help.
>> Best regards.
>>
>> El 24/04/2013 13:11, David Adams escribió:
>>
>> Hi Daniel,
>> To troubleshoot Javascript, you'll need a client-side debugger. I'm fond
>> of the Developer Tools built into Google Chrome (under the Tools submenu).
>> Firefox has similar tools (Firebug was the best one when I was using
>> Firefox). If you pull those tools up you should immediately see if there
>> are issues on the page. Then if you click the bad link, you should see
>> what's going wrong. The other, simpler option would be to just pull up the
>> Javascript Console on whatever browser you're using and it should display
>> some error or other that should lead you in the right direction.
>>
>>  -dave
>>
>>  David Adams
>> Director, Systems Integration and Support
>> Virginia Tech Learning Technologies
>>
>>
>> On Wed, Apr 24, 2013 at 6:02 AM, Daniel Merino <daniel.merino at unavarra.es
>> > wrote:
>>
>>> Hi everybody.
>>>
>>> I'm trying to fix a local patch that does not work, but I'm not able to
>>> find the error. Is Javascript code running inside a Velocity template,
>>> two technologies that I don't know very well. I hope some experienced
>>> developer can help me.
>>>
>>> In a vm file inside content tool, I have this code:
>>>
>>> <input type="button" class="active" name="savechanges" id="savechanges"
>>> onclick=
>>> "javascript:showNotif('submitnotifxxx','savechanges','addContentForm');document.getElementById('addContentForm').action='#toolLink("
>>> ResourcesAction"
>>> "doMultipleFoldersUpload")';submitform('addContentForm');"
>>> value="$tlang.getString("label.continue")" accesskey="s" />
>>>
>>> that renders a Continue button. This button should call
>>> doMultipleFoldersUpload method in ResourcesAction.java class, but I have
>>> checked that this method is not called and no error is shown inside
>>> Tomcat's logs.
>>>
>>> I don't know how to continue in order to detect this error. Could
>>> somebody give me any hint or idea?
>>>
>>> If you need more information, just tell me.
>>>
>>> Thanks in advance.
>>> Best regards,
>>> --
>>> Daniel Merino Echeverría
>>> daniel.merino at unavarra.es
>>> Gestor de teleformación - Centro Superior de Innovación Educativa.
>>> Tfno: 948-168489 - Universidad Pública de Navarra.
>>> _______________________________________________
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>>
>>
>>   --
>> Daniel Merino Echeverría
>> daniel.merino at unavarra.es
>> Gestor de teleformación - Centro Superior de Innovación Educativa.
>> Tfno: 948-168489 - Universidad Pública de Navarra.
>>  --
>> Los amigos son para las ocasiones, salvo en determinados circulos
>> político-económicos, en los que las ocasiones son para los amigos. (Perich)
>>
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>
>
> --
> Daniel Merino Echeverría
> daniel.merino at unavarra.es
> Gestor de teleformación - Centro Superior de Innovación Educativa.
> Tfno: 948-168489 - Universidad Pública de Navarra.
> --
> Muchas personas son lo bastante educadas como para no hablar con la boca
> llena, pero no les preocupa hacerlo con la cabeza vacía. (Orson Welles)
>
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