xforms and xs:date validation?

I'm a new Orbeon and XForms user, and I'm slowly coming up to speed on
how XForms work.

I ran into something today that might be a bug, though I'm not sure:
validation of an element I have bound as a special type that contains a
union of w3c date types allows months and days out of range to pass through.

Here's what I have in my xsd:

     <xs:simpleType name="uwdcdate">
          <xs:union memberTypes="xs:gYear xs:gYearMonth xs:date"/>
     </xs:simpleType>

Here's what I have in my xhtml file:

<xforms:bind
nodeset="instance('mods-instance')/mods:origininfo/mods:dateIssued"
type="uwdc:uwdcdate"/>

and here's my control:

<xforms:input ref="mods:dateIssued" incremental="true" id="additional-date">
   <xforms:label>Date</xforms:label>
   <xforms:help>Must be in form "YYYY[-MM][-DD].</xforms:help>
</xforms:input>

What I'm seeing is that it accepts four digits, optionally followed by a
dash and two digits, then optionally followed by another dash and two
more digits, and rejects everything else. So far so good.

But it accepts *any* two digits in the month field, not just 01 - 12;
and it accepts *any* two digits in the day field, rather than 01 - 31,
as defined by the W3C specification for xs:date.  Validation seems to be
incomplete.

Am I missing something?

thanks,

-- Scott

--
Scott Prater
Library, Instructional, and Research Applications (LIRA)
Division of Information Technology (DoIT)
University of Wisconsin - Madison


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I did some more testing, just to make sure the xs:union wasn't throwing a
wrench in the works.  I tried entering a date of type xs:date, and found the
same problem:  days and months can be any two-digit integer.

Is this properly not an Orbeon problem, but an xs validation problem?


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I implemented a workaround for constarining months and dates.  A colleague of
mine found a regular expression pattern for dates that was used in the relax NG
schema for EAD documents.

Here's my modified date xs:simpleType in my xsd file:

<xs:simpleType name="uwdcdate">
        <xs:restriction base="xs:string">
            <xs:pattern
value="(\-?(0|1|2)([0-9]{3})(((01|02|03|04|05|06|07|08|09|10|11|12)((0[1-9])|((1|2)[0-9])|(3[0-1])))|\-((01|02|03|04|05|06|07|08|09|10|11|12)(\-((0[1-9])|((1|2)[0-9])|(3[0-1])))?))?)(/\-?(0|1|2)([0-9]{3})(((01|02|03|04|05|06|07|08|09|10|11|12)((0[1-9])|((1|2)[0-9])|(3[0-1])))|\-((01|02|03|04|05|06|07|08|09|10|11|12)(\-((0[1-9])|((1|2)[0-9])|(3[0-1])))?))?)?"/>

        </xs:restriction>
    </xs:simpleType>

It's big and ugly, but it works.


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I reproduced this, and it appeared to be a bug in MSV's xsdlib. I also
found this message, without reply:

https://msv.dev.java.net/servlets/ReadMsg?list=users&msgNo=107

I patched xsdlib to strictly validate date types. Hopefully this will
be more correct than before!

Bug
http://forge.ow2.org/tracker/index.php?func=detail&aid=314812&group_id=168&atid=350207

Changes
http://github.com/orbeon/msv/blob/master/xsdlib/src/com/sun/msv/datatype/xsd/datetime/CalendarParser.java

-Erik

On Mon, Mar 8, 2010 at 10:19 AM,  <[hidden email]> wrote:

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Thanks, Erik!

-- Scott

Erik Bruchez wrote:
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Scott Prater
Library, Instructional, and Research Applications (LIRA)
Division of Information Technology (DoIT)
University of Wisconsin - Madison
[hidden email]


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