How to load enumerations from schema into XForm "select1"

Hi
I have a schema as follows:

-

<xsd:simpleType name="ISO3166CountyCode">
    <xsd:annotation>
      <xsd:documentation>
        Two-letter (alpha-2) ISO 3166-1 code for one of the 243 countries.
      </xsd:documentation>
    </xsd:annotation>

    <xsd:restriction base="xsd:string">
      <xsd:enumeration value="AF"/> 
      <xsd:enumeration value="AX"/> 
      <xsd:enumeration value="AL"/> 
      <xsd:enumeration value="DZ"/> 
      <xsd:enumeration value="AS"/> 
      <xsd:enumeration value="AD"/> 
      <xsd:enumeration value="AO"/> 
      <xsd:enumeration value="AI"/> 

----------
-------

Now I have an XForm in which I have a select1 control for country as follows:

<xhtml:td class="form-td">
                                                <xforms:select1
                                                        ref="instance('taskinput')/fe:country"
                                                        selection="closed">
                                                        <xforms:label class="all-label">Country:</xforms:label>
                                                       
                                                        <xforms:item>
                                                                <xforms:label>
                                                                        USA
                                                                </xforms:label>
                                                                <xforms:value>
                                                                        UK
                                                                </xforms:value>
                                                        </xforms:item>
                                                        <xforms:item>
                                                                <xforms:label>
                                                                        UAE
                                                                </xforms:label>
                                                                <xforms:value>
                                                                        Uganda
                                                                </xforms:value>
                                                        </xforms:item>
                                                </xforms:select1>
                                        </xhtml:td>


---------

I coded hard-coded values in the select1 statement in the beginning when I did not have the schema for the country code, but when I have it, I do not know how to load these values into the select1 dropdown dynamically.

That is, the dropdown should be prepopulated with values from the schema (through the instance or from the schema to the select1 directly)

This may be a naive question, but I do not have an answer as to how I can do this.

Any suggestions are appreciated.

Hi,

Le mercredi 16 janvier 2008 à 10:49 -0800, XGuy a écrit :

> That is, the dropdown should be prepopulated with values from the schema
> (through the instance or from the schema to the select1 directly)

What about using an XPath expression to access this information in the
schema itself?

In that case, rather than using a comment for the country name, you'd
better use either a xs:annotation or a foreign attribute, for instance :

<xsd:enumeration value="AF" dc:title="AFGHANISTAN"/>

You can then access to the set of xsd:enumeration like you'd to to any
lookup table...

Something along these lines should work:

<xforms:select1 ref="instance('taskinput')/fe:country"  
      selection="closed">
     <xforms:label class="all-label">Country:</xforms:label>
     <itemset
nodeset="instance('schema')/xsd:simpleType[@name='ISO3166CountyCode']/xsd:restriction/xsd:enumeration">
        <label ref="@dc:title"/>
        <value ref="@value"/>
     </itemset>
...

Assuming that your instance named "schema" is your schema.

Hope this helps.

Eric
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I will try these suggestions today. I appreciate your looking at it.

Eric van der Vlist wrote

Hi,

Le mercredi 16 janvier 2008 à 10:49 -0800, XGuy a écrit :

> That is, the dropdown should be prepopulated with values from the schema
> (through the instance or from the schema to the select1 directly)

What about using an XPath expression to access this information in the
schema itself?

In that case, rather than using a comment for the country name, you'd
better use either a xs:annotation or a foreign attribute, for instance :

<xsd:enumeration value="AF" dc:title="AFGHANISTAN"/> 

You can then access to the set of xsd:enumeration like you'd to to any
lookup table...

Something along these lines should work:

<xforms:select1 ref="instance('taskinput')/fe:country"  
      selection="closed">
     <xforms:label class="all-label">Country:</xforms:label>
     <itemset
nodeset="instance('schema')/xsd:simpleType[@name='ISO3166CountyCode']/xsd:restriction/xsd:enumeration"> 
        <label ref="@dc:title"/>
        <value ref="@value"/>
     </itemset>
...

Assuming that your instance named "schema" is your schema.

Hope this helps.

Eric

> This may be a naive question, but I do not have an answer as to how I can do
> this.
>
> Any suggestions are appreciated.
> pièce jointe document plein texte (message-footer.txt)
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Hi Eric
I do not quite understand the use of "instance('schema')". In my XForm I have
<xforms:model schema="CC.xsd"

I think you are trying to tell me to directly reference the schema itself like: instance('CC')..
Have I understood you correctly?

thanks
ilango
<quote author="Eric van der Vlist">
Hi,

Le mercredi 16 janvier 2008 à 10:49 -0800, XGuy a écrit :

> That is, the dropdown should be prepopulated with values from the schema
> (through the instance or from the schema to the select1 directly)

What about using an XPath expression to access this information in the
schema itself?

In that case, rather than using a comment for the country name, you'd
better use either a xs:annotation or a foreign attribute, for instance :

<xsd:enumeration value="AF" dc:title="AFGHANISTAN"/> 

You can then access to the set of xsd:enumeration like you'd to to any
lookup table...

Something along these lines should work:

<xforms:select1 ref="instance('taskinput')/fe:country"  
      selection="closed">
     <xforms:label class="all-label">Country:</xforms:label>
     <itemset
nodeset="instance('schema')/xsd:simpleType[@name='ISO3166CountyCode']/xsd:restriction/xsd:enumeration"> 
        <label ref="@dc:title"/>
        <value ref="@value"/>
     </itemset>
...

Assuming that your instance named "schema" is your schema.

Hope this helps.

Eric

> This may be a naive question, but I do not have an answer as to how I can do
> this.
>
> Any suggestions are appreciated.
> pièce jointe document plein texte (message-footer.txt)
> --
> You receive this message as a subscriber of the ops-users@ow2.org mailing list.
> To unsubscribe: mailto:ops-users-unsubscribe@ow2.org
> For general help: mailto:sympa@ow2.org?subject=help
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                                                http://apiculteurs.info/
------------------------------------------------------------------------
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ilan,

> I think you are trying to tell me to directly reference the schema itself
> like: instance('CC')..

i suppose you wil have to load the schema into an instance, firstly, before
accesing it that way. For example:

<xforms:instance id="CC" src="oxf:CC.xsd" />

HTH
florian


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