Another interesting XForms implementation seems to me http://www.orbeon.com/

I guess
* 'fully interactive forms' without the need for writing form code/
AJAX/... see Form Builder
* 'as-you-type-validation'
* 'form submissions are handled for you'
* 'no more struggling with AJAX/scripting languages or browser
incompatibilities'
would go on my x-mas wish list to Santa Massimo ;-)

Hans


On 1 Jul., 19:13, mdipierro <[email protected]> wrote:
> right now you can do
>
> requires=IS_IN_DB(...) # options or
> requires=[IS_IN_DB(...)] # no options
> both cases validate the same serverside.
>
> I think the same may work with XForms
>
> On Jul 1, 11:36 am, Hans Donner <[email protected]> wrote:
>
> > depending on the volume of the data the IS_IN_DB can be included (eg
> > data in javascript or so), so with jquery you can do some checking.
>
> > in the end, validation must always be done on the server side
>
> > 2009/7/1 mdipierro <[email protected]>:
>
> > > this
>
> > >> IS_NOT_IN_DB = I don't see how to support this
>
> > > would only be serverside so nothing to do.
>
> > > On Jul 1, 10:56 am, Fran <[email protected]> wrote:
> > >> On Jul 1, 4:39 pm, mdipierro <[email protected]> wrote:
>
> > >> > If XForms hanles select/options it must be possible to send the
> > >> > options. no?
>
> > >> IS_IN_SET = no problem
> > >> IS_IN_DB = ok, although we should continually refresh the form to see
> > >> new data being added
> > >> IS_NOT_IN_DB = I don't see how to support this
>
> > >> The 'only show this field if previous answer was x' has no direct
> > >> Web2Py model analogue
> > >> - I use jQuery to achieve this kind of thing in HTML views
> > >> Am not sure if we can add something within Web2Py model to handle both
> > >> of these programatically or whether this will always have to be
> > >> something we touch up manually afterwards.
> > >> e.g. I have 'unit_cost' for One-time costs &
> > >> 'monthly_cost'/'minute_cost'/'megabyte_cost' for Recurring costs
>
> > >> F
>
> > >> > On Jul 1, 10:28 am, Fran <[email protected]> wrote:
>
> > >> > > Whilst most stuff seems starightforward, the harder cases are things
> > >> > > like:
>
> > >> > > db.budget_item.code.requires = IS_NOT_IN_DB(db, 'budget_item.code')
> > >> > > Obviously if working offline then this referencedata isn't available
> > >> > > - I guess we just have to ignore that within the XForm itself & 
> > >> > > handle
> > >> > > it during form submission.
>
> > >> > > db.Field('created_on', 'datetime', readable=False, writable=False,
> > >> > > default=request.now)
> > >> > > The Hidden field part is straightfwd (just don't provide a Control)
> > >> > > But the default value doesn't make sense to be within the form
> > >> > > definition as it makes sense at submission time per-instance not as a
> > >> > > default when form is downloaded to device! (Same goes for uuid)
> > >> > > datetime may need some tweaking - this is available: <bind
> > >> > > nodeset="created-on" type="date" />
>
> > >> > > F
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