instance & post data merge

Colin Seaman
Senior Developer
 
Tradocs Ltd,
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44 North Road,
Brighton,
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Colin,

I'm trying to merge my XML Post data and my form's normal instance data, but with no success.  Does anyone have any examples of how to do this?

Can you describe more precisely what you want to do?

-Erik

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Colin Seaman
Senior Developer
 
Tradocs Ltd,
Tower Point,
44 North Road,
Brighton,
BN1 1YR

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Colin,

> yep; I'm using Orbeon specifically for rendering XForms.  From our
> application I want to be able to post our stored XML data to a
> specific Xform and have that data populated within the form when it
> is shown on the screen.
>
> For this to happen my "instance" data used to show and reference the
> fields in the XForm needs to have the Posted XML's data merged in to it,
> so that when I view the form I can see all the fields in the instance
> data, plus any populated ones filled in from the posted XML data.
>
> <supplier>
>     <name/>
>     <address1/>
>     <city/>
> </supplier>
>
> With posted data merged, instance would be:
>
> <supplier>
>     <name>BOB's Construction</name>
>     <address1>
>     <city>London</city>
> </supplier>
>
> Hope that makes sense!

Partially at least ;-) If somebody posts an XML document to the URL of
your XForms page, the page can retrieve the submitted instance using
XInclude, XSLT, or the xforms:instance/@src attribute, see the
following:

http://www.orbeon.com/ops/doc/reference-xforms-ng#xforms-instance-initialization

This means that your XForms instance will actually contain the XML
document submitted to your page.

-Erik

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Colin Seaman
Senior Developer
 
Tradocs Ltd,
Tower Point,
44 North Road,
Brighton,
BN1 1YR

email:     [hidden email]
skype:     colin,seaman
telephone: 0870-1417031
website:   http://www.tradocs.net

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Hi Colin,

If you are posting an XML document to the URL of your XForms page,
then you can directly use XInclude, as Erik said earlier.

If you are posting name/value pairs, for instance with an HTML form,
you first need to convert those name/value pairs in an XML document.
You can do this in your PFC with <setvalue>:

http://www.orbeon.com/ops/doc/reference-page-flow#url-extraction

Alex

On 11/15/06, Colin Seaman [hidden email] wrote:

 thanks, although I still can't manage to get this working.

 A HTML page I'm posting from:

 anotherserver.com/post.htm
 <form method="post" action="myserver_etc/xform/test/">
 <textarea name="myxml" rows="10" cols="10"></textarea>
 </form>

 Are there any examples of the correct coding for the page-flow/XForm that
allows me to merge whatever XML data I send with the above form in to my
current instance data?

 Colin Seaman
Senior Developer

Tradocs Ltd,
Tower Point,
44 North Road,
Brighton,
BN1 1YR

email: [hidden email]
skype: colin,seaman
telephone: 0870-1417031
website: http://www.tradocs.net

This email and any files transmitted with it are confidential
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This content of this email is without prejudice.


 Erik Bruchez wrote:
Colin,

 > yep; I'm using Orbeon specifically for rendering XForms.  From our
 > application I want to be able to post our stored XML data to a
 > specific Xform and have that data populated within the form when it
 > is shown on the screen.
 >
 > For this to happen my "instance" data used to show and reference the
 > fields in the XForm needs to have the Posted XML's data merged in to it,
 > so that when I view the form I can see all the fields in the instance
 > data, plus any populated ones filled in from the posted XML data.
 >
 > <supplier>
 >     <name/>
 >     <address1/>
 >     <city/>
 > </supplier>
 >
 > With posted data merged, instance would be:
 >
 > <supplier>
 >     <name>BOB's Construction</name>
 >     <address1>
 >     <city>London</city>
 > </supplier>
 >
 > Hope that makes sense!

 Partially at least ;-) If somebody posts an XML document to the URL of
 your XForms page, the page can retrieve the submitted instance using
 XInclude, XSLT, or the xforms:instance/@src attribute, see the
 following:

http://www.orbeon.com/ops/doc/reference-xforms-ng#xforms-instance-initialization

 This means that your XForms instance will actually contain the XML
 document submitted to your page.

 -Erik


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Colin Seaman
Senior Developer
 
Tradocs Ltd,
Tower Point,
44 North Road,
Brighton,
BN1 1YR

email:     [hidden email]
skype:     colin,seaman
telephone: 0870-1417031
website:   http://www.tradocs.net

This email and any files transmitted with it are confidential 
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error please contact Tradocs. Please note that any views or 
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Colin,

> What I am sending is effectively
> myxml=<mypostxml><tag1/><house>6</house></mypostxml>
>
> over a HTTP Post, where "myxml" is the key and my instance XML is the
> value. I want to merge all of the default instance data with the new
> data coming in, so I assume I can do in page-flow.xpl:
>
> <page path-info="/ops/test" default-submission="initial.xml">
> <setvalue ref="/mypostxml" parameter="myxml"/>
> </page>

My guess is that this will produce something like:

<mypostxml>
  &lt;mypostxml>&lt;tag1/>&lt;house>6&lt;/house>&lt;/mypostxml>
</mypostxml>

The reason is that nobody is parsing the XML document passed as a
parameter. But that may be what you are looking for, I don't know.

This assumes that initial.xml looks like this:

<mypostxml>
</mypostxml>

> In my XFORM, I have:
>
> <xforms:instance id="instance_model_Document" src="initial.xml" >
>  </xforms:instance>
>
> Is this correct?

It is correct XForms, but I don't think this will do what you think it
will do. This will load initial.xml from the disk. For instance
initialization techniques, check this part of the doc:


http://www.orbeon.com/ops/doc/reference-xforms-ng#xforms-instance-initialization

-Erik

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Colin Seaman
Senior Developer
 
Tradocs Ltd,
Tower Point,
44 North Road,
Brighton,
BN1 1YR

email:     [hidden email]
skype:     colin,seaman
telephone: 0870-1417031
website:   http://www.tradocs.net

This email and any files transmitted with it are confidential 
and intended solely for the use of the individual or entity to 
whom they are addressed. If you have received this email in 
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opinions presented in this email are solely those of the author 
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the recipient should check this email and any attachments for 
the presence of viruses. The company accepts no liability for 
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This content of this email is without prejudice.

Colin,

What is page-flow.xpl? I assume that this the model for your page. In
addition to the "No error message provided", can you see a Java
exception? In addition to you finding a solution to this issue, it
would be nice if we could reproduce the issue and improve Orbeon Forms
to provide a better error message in this case.

Alex

On 11/21/06, Colin Seaman [hidden email] wrote:

 OK, I've got hold of the XML I'm sending in via the /request processor.
Now I want to parse that string in to a usuable peice of XML.  In my
page-flow.xpl I have:

 <p:param type="input" name="instance"/>
 <p:param type="output" name="data"/>

   <p:processor name="oxf:request">
        <p:input name="config" >
             <config>

<include>/request/parameters/parameter[starts-with(name,
'xml')]</include>
             </config>
         </p:input>
         <p:output name="requestdata" id="data123"/>
   </p:processor>

 <p:processor name="oxf:xslt"
xmlns:p="http://www.orbeon.com/oxf/pipeline">
   <p:input name="datapreparse" href="#data123"/>
  <p:input name="config">
       <xsl:stylesheet version="2.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
           <xsl:template match="/">
              <xsl:copy-of
select="saxon:parse(doc('datapreparse')/parameters/parameter/value)"/>
           </xsl:template>
       </xsl:stylesheet>
   </p:input>

   <p:output name="dataout" ref="data" id="data" />
   </p:processor>

 This, however, blows up with "No Error Message Provided" when I try in use:
   <xforms:instance id="request" >
         <xi:include href="input:data" />
      </xforms:instance>

 To use this instance in my XForm.

 Anyone any clues?

 Is the value of "datapreparse" reference correctly in the saxon:parse
function?

 Colin Seaman
Senior Developer

Tradocs Ltd,
Tower Point,
44 North Road,
Brighton,
BN1 1YR

email: [hidden email]
skype: colin,seaman
telephone: 0870-1417031
website: http://www.tradocs.net

This email and any files transmitted with it are confidential
and intended solely for the use of the individual or entity to
whom they are addressed. If you have received this email in
error please contact Tradocs. Please note that any views or
opinions presented in this email are solely those of the author
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This content of this email is without prejudice.


 Erik Bruchez wrote:
Colin,

 > What I am sending is effectively
 > myxml=<mypostxml><tag1/><house>6</house></mypostxml>
 >
 > over a HTTP Post, where "myxml" is the key and my instance XML is the
 > value. I want to merge all of the default instance data with the new
 > data coming in, so I assume I can do in page-flow.xpl:
 >
 > <page path-info="/ops/test" default-submission="initial.xml">
 > <setvalue ref="/mypostxml" parameter="myxml"/>
 > </page>

 My guess is that this will produce something like:

 <mypostxml>

&lt;mypostxml>&lt;tag1/>&lt;house>6&lt;/house>&lt;/mypostxml>
 </mypostxml>

 The reason is that nobody is parsing the XML document passed as a
 parameter. But that may be what you are looking for, I don't know.

 This assumes that initial.xml looks like this:

 <mypostxml>
 </mypostxml>

 > In my XFORM, I have:
 >
 > <xforms:instance id="instance_model_Document" src="initial.xml" >
 >  </xforms:instance>
 >
 > Is this correct?

 It is correct XForms, but I don't think this will do what you think it
 will do. This will load initial.xml from the disk. For instance
 initialization techniques, check this part of the doc:


http://www.orbeon.com/ops/doc/reference-xforms-ng#xforms-instance-initialization

 -Erik

 ________________________________


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