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Problem developing dynamic page-flow navigation using internal xml submission and matchers

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Tom Grahame

Problem developing dynamic page-flow navigation using internal xml submission and matchers

Dear list,

I am trying to create dynamic navigation using logic implemented in the page-flow, however I am facing problems selecting a page that uses matchers by passing xml to it internally from a page/action/result element.

I have created an app that recreates the problem and it can be dropped into the default apps folder of Orbeon.
matcher-nav.zip

When I attempt to access the following page in my browser:
http://localhost:8080/orbeon/matcher-nav/add/journal-article/

I expect the dummy logic in the page-flow to be executed and the browser to be redirected for me to see:
http://localhost:8080/orbeon/matcher-nav/add/journal-article/
in the address bar.

Instead the page-flow logic executes and I see this in the address bar:
http://localhost:8080/orbeon/matcher-nav/add//?%24instance=X2ztn...

It is as if the xsl in the result element of lines 22-24 of page-flow.xml is not passed, or evaluates to null.

In my example I have included some logic and pipelines that don't do much but do represent the occurance of real logic in my live app.

I have read the documentation here:
http://www.orbeon.com/ops/doc/reference-page-flow#navigating-to-matchers-pages
and tried to build my app accordingly, but without much success.

Could anyone offer any suggestions?

Thanks,

Tom

Tom Grahame

Re: Problem developing dynamic page-flow navigation using internal xml submission and matchers

Tom Grahame wrote

Dear list,

I am trying to create dynamic navigation using logic implemented in the page-flow, however I am facing problems selecting a page that uses matchers by passing xml to it internally from a page/action/result element.

I have created an app that recreates the problem and it can be dropped into the default apps folder of Orbeon.
matcher-nav.zip

Can anyone reproduce this? Even if a fix isn't provided it would be nice to know I am going in the right direction.

Thanks,

Tom

Alessandro Vernet

Re: Problem developing dynamic page-flow navigation using internal xml submission and matchers

Administrator

In reply to this post by Tom Grahame

Hi Tom,

On Mar 20, 2009, at 4:15 AM, Tom Grahame wrote:

> I am trying to create dynamic navigation using logic implemented in
> the
> page-flow, however I am facing problems selecting a page that uses
> matchers
> by passing xml to it internally from a page/action/result element.

Sorry for the delay.

I reproduced the problem. There was an xmlns="" missing on the
<content-type> (otherwise that element will be in the PFC namespace),
but that is not enough to solve the problem. This is a tricky case and
we haven't used this in a while. So I am either missing something, or
this has been broken at some point. I created bug, linked here for
reference:

http://forge.ow2.org/tracker/index.php?func=detail&aid=313592&group_id=168&atid=350207

As a workaround, you can use a redirect processor in XPL. Nowadays, we
tend to implement this directly in XForms and then we would use an
<xforms:load> from XForms.

Alex
--
Orbeon Forms - Web 2.0 Forms, open-source, for the Enterprise
Orbeon's Blog: http://www.orbeon.com/blog/
Personal Blog: http://avernet.blogspot.com/
Twitter - http://twitter.com/avernet

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Tom Grahame

Re: Problem developing dynamic page-flow navigation using internal xml submission and matchers

Hi Alex,

Thanks for examining my test case.

I have resolved this by hard-coding extra page ids in page-flow.xml and referring to them explicitly.
This is not elegant, but I believe keeps the logic inside of the page flow - as per recommendations ;)

Thanks for adding the bug also.

Regards,

Tom

Alessandro Vernet wrote

Hi Tom,

On Mar 20, 2009, at 4:15 AM, Tom Grahame wrote:

> I am trying to create dynamic navigation using logic implemented in
> the
> page-flow, however I am facing problems selecting a page that uses
> matchers
> by passing xml to it internally from a page/action/result element.

Sorry for the delay.

I reproduced the problem. There was an xmlns="" missing on the
<content-type> (otherwise that element will be in the PFC namespace),
but that is not enough to solve the problem. This is a tricky case and
we haven't used this in a while. So I am either missing something, or
this has been broken at some point. I created bug, linked here for
reference:

http://forge.ow2.org/tracker/index.php?func=detail&aid=313592&group_id=168&atid=350207

As a workaround, you can use a redirect processor in XPL. Nowadays, we
tend to implement this directly in XForms and then we would use an
<xforms:load> from XForms.

Alex
--
Orbeon Forms - Web 2.0 Forms, open-source, for the Enterprise
Orbeon's Blog: http://www.orbeon.com/blog/
Personal Blog: http://avernet.blogspot.com/
Twitter - http://twitter.com/avernet

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-----
Orbeon Forms - Web 2.0 Forms, open-source, for the Enterprise
Orbeon's Blog: http://www.orbeon.com/blog/
Personal Blog: http://avernet.blogspot.com/
Twitter - http://twitter.com/avernet