Uploading XSD schemas with imported namespaces into Marklogic 6 - xsd

Question

As a small excercise I'm trying to upload and validate documents with a couple of schemas. These will eventually grow so I'd like to keep them separate.
These example schemas define a localized text string and a food dish:
bitfood-common.xsd:
<?xml version="1.0" encoding="UTF-8"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"
xmlns:bfc="http://bitfood.org/common"
targetNamespace="http://bitfood.org/common"
elementFormDefault="qualified">
<xs:simpleType name="objectId">
<xs:restriction base="xs:string">
<xs:length value="24"/>
<xs:whiteSpace value="collapse"/>
</xs:restriction>
</xs:simpleType>
<xs:simpleType name="locale">
<xs:restriction base="xs:string">
<xs:length value="5"/>
<xs:whiteSpace value="collapse"/>
</xs:restriction>
</xs:simpleType>
<xs:complexType name="localizedText">
<xs:attribute name="text" type="xs:string" use="required"/>
<xs:attribute name="locale" type="bfc:locale" use="required"/>
</xs:complexType>
</xs:schema>
bitfood-dish.xsd:
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"
xmlns:bfd="http://bitfood.org/dish"
xmlns:bfc="http://bitfood.org/common"
targetNamespace="http://bitfood.org/dish"
elementFormDefault="qualified">
<xs:import namespace="http://bitfood.org/common"
schemaLocation="../common/bitfood-common.xsd" />
<xs:element name="Dish">
<xs:complexType>
<xs:sequence>
<xs:element name="name" type="bfc:localizedText" maxOccurs="unbounded"/>
<xs:element name="description" type="bfc:localizedText" maxOccurs="unbounded"/>
</xs:sequence>
<xs:attribute name="id" type="bfc:objectId" use="required"/>
<xs:attribute name="price" type="xs:decimal" use="required"/>
<xs:attribute name="imageUrl" type="xs:anyURI" use="required"/>
</xs:complexType>
</xs:element>
</xs:schema>
I then uploaded these two documents inside the Schemas database assigned to my xml database with the following URI id's:
schema/common/bitfood-common.xsd
schema/dish/bitfood-dish.xsd
And then I uploaded an example document:
dish/520cc720c208c01ddfb75254.xml:
<?xml version="1.0" encoding="UTF-8"?>
<Dish id="520cc720c208c01ddfb75254" price="35"
imageUrl="FoodCantonGourrmetTwoDish.jpg"
xmlns="http://bitfood.org/dish">
<name text="Example dish." locale="en-US"/>
<description text="Localized text test." locale="en-US"/>
</Dish>
When I issue the following command on the server's query console, I get the empty set when I instruct the database to infer the type of the xml document's root node:
Update: wrong node index, must be 1 in this case:
(: is it working? :)
declare namespace bfd = "http://bitfood.org/dish";
declare namespace bfc = "http://bitfood.org/common";
xdmp:describe(data(
doc('dish/520cc720c208c01ddfb75254.xml')/bfd:Dish[1]
))
Output:
<?xml version="1.0" encoding="UTF-8"?>
<results warning="atomic item">xs:untypedAtomic("")</results>
This means that the database is either ignoring or not able to find my schema documents. Also, I am not sure if it can't apply the schemas because of the xs:import namespace statement.
Has anyone attempted to work with imported XSD documents into Marklogic in this way? Is there anything I may be doing wrong?
Update 2: It seems this can only be applied to attributes. The following command does work as expected, which means the schemas are being detected:
(: is it working? :)
declare namespace bfd = "http://bitfood.org/dish";
declare namespace bfc = "http://bitfood.org/common";
xdmp:describe(data(doc('dish/520cc720c208c01ddfb75254.xml')/bfd:Dish[1]/#id))
Thanks!

Answer 1

XQuery positional predicates start at 1 not 0.
Try this:
doc('dish/520cc720c208c01ddfb75254.xml')/bfd:Dish[1]
Then work your way up to more complicated code.
-David Lee