replace="instance" and MIP events

Hello guys,

as the Spec is not very clear about this i'd like to hear how Orbeon
implements a submission/@replace="instance" or to be more precise what
actually happens directly after it.

The Spec defines the following event sequence for a submit:
- xforms-submit
- xforms-submit-done or xforms-submit-error (4.6.9)

This implies that the MIP events 'xforms-valid', 'xforms-invalid',
'xforms-enabled', xforms-disabled' ... are not fired after an instance
has been replaced by a submit.

But this poses a serious problem in use cases where you have e.g.
@relevant constraints defined on your data cause these won't be updated
by the replace="instance" and therefore nodes becoming enabled or
disabled won't be shown/hidden as appropriate. IMO this is inconsistent
with the 'normal' behavior.

Why do i ask this here and not on the official XForms list? Well, i
heard from customers using different XForms engines at the same time and
that other vendors have choosen to fire these events. I just like to
hear how the Orbeon team thinks about this cause we'd like to become
interoperable with other implementations.

Thanks,


Joern




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Joern,
        Although I have not assigned actions to these events, but I tend to
only use the instance option within submission and all my relevant binds are
updated without a problem.

Hope this helps to answer your question

Ryan Puddephatt
Software Engineer
TFX Group - IT UK
1 Michaelson Square
Livingston
West Lothian
Scotand
EH54 7DP
 
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Joern,

The spec says this:

   http://www.w3.org/TR/xforms/slice11.html#submit-event

"Once the XML instance data has been replaced, the rebuild,
  recalculate, revalidate and refresh operations are performed on the
  model, without dispatching events to invoke those four
  operations. Submit processing then concludes after dispatching
  xforms-submit-done."

So this appears to be pretty clear, and to ensure that all the MIPs
are recomputed and that the events are be fired, since they are fired
upon refresh.

Where I see a gap in the spec regards repeat indexes though.

-Erik

Joern Turner wrote:
 > Hello guys,
 >
 > as the Spec is not very clear about this i'd like to hear how Orbeon
 > implements a submission/@replace="instance" or to be more precise what
 > actually happens directly after it.
 >
 > The Spec defines the following event sequence for a submit:
 > - xforms-submit
 > - xforms-submit-done or xforms-submit-error (4.6.9)
 >
 > This implies that the MIP events 'xforms-valid', 'xforms-invalid',
 > 'xforms-enabled', xforms-disabled' ... are not fired after an instance
 > has been replaced by a submit.
 >
 > But this poses a serious problem in use cases where you have e.g.
 > @relevant constraints defined on your data cause these won't be updated
 > by the replace="instance" and therefore nodes becoming enabled or
 > disabled won't be shown/hidden as appropriate. IMO this is inconsistent
 > with the 'normal' behavior.
 >
 > Why do i ask this here and not on the official XForms list? Well, i
 > heard from customers using different XForms engines at the same time and
 > that other vendors have choosen to fire these events. I just like to
 > hear how the Orbeon team thinks about this cause we'd like to become
 > interoperable with other implementations.
 >
 > Thanks,
 >
 >
 > Joern




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Erik Bruchez wrote:
thanks for pointing me to that. Must have missed it somehow. Of course
this is pretty clear.

Thanks Joern


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