[Xml-compile] First steps with XML:Compile

[Rolf Schaufelberger]

Hi , 
I'm just trying my first steps in understanding XML::Compile.
My goal is, to write a XML file according to given xsd files
So I want to write an openTRANS XML document, (www.opentrans.org)

where I have the xsd files

openTRANS_ORDER_1_0_draft.xsdcountries_draft.xsd
openbase_1_0_draft.xsd
currencies_draft.xsd
lang_draft.xsd
punit_draft.xsd
udx_draft.xsd
unit_draft.xsd

The first one defines the document type, the second library elements and the 
others are included by the second one.
In my test script I list all files (with absolute path in an array and pass it 
to XML::Compile::Schema->new. 
When I call printIndex I get a long list :

 namespace: http://www.opentrans.org/XMLSchema/1.0_draft
 filename: /home/rs/openTrans/openTRANS_ORDER_1_0_draft.xsd
  definitions of elements:
    ORDER
    ORDER_HEADER
    ORDER_INFO
    ORDER_ITEM_LIST
    ORDER_SUMMARY
namespace:
 filename: /home/rs/openTrans/openbase_1_0_draft.xsd
  definitions of elements:
    ACCOUNT
    ACCOUNTING_INFO
    ADDRESS
     ...
    CONTROL_INFO
    COST_ACCOUNT
    ....


Now I define a hash like this to define an order:

my $hash = { order=>
	     {version=> '1.0', 
	      type => 'standard',
	      ORDER_HEADER => { 
		  ORDER_INFO => {
		      ORDER_ID => 123,
		      ORDER_DATE => '2008-06-25',
		  }
	      },
              ...

and , taken as example from the docs :

# create and use a writer
my $doc    = XML::LibXML::Document->new('1.0', 'UTF-8');
my $myns   = 'http://www.opentrans.org/XMLSchema/1.0_draft';
my $write  = $schema->compile(WRITER => "{$myns}ORDER");
my $xml    = $write->($doc, $hash);


running this I get an error:./openTrans.pl
error: cannot find 
element '{http://www.opentrans.org/XMLSchema/1.0_draft}CONTROL_INFO' at 
{http://www.opentrans.org/XMLSchema/1.0_draft}ORDER/ORDER_HEADER/CONTROL_INFO

So it looks like CONTROL_INFo is the first element appearing in 
openTRANS_ORDER_1_0_draft.xsdcountries_draft.xsd
that is defined in 
openbase_1_0_draft.xsd
and the mapping with the namespace is not working. 
How do I have to do that ?

Regards
Rolf Schaufelberger