I was following a tutorial from marklogic,
https://developer.marklogic.com/learn/2007-04-schema
In a scenario, where I have xsd file
<!-- tutorial.xsd -->
<xs:schema targetNamespace="http://marklogic.com/tutorial"
attributeFormDefault="unqualified"
elementFormDefault="unqualified"
xmlns:xs="http://www.w3.org/2001/XMLSchema">
<xs:element name="name" type="xs:token"
abstract="false" nillable="false"/>
<xs:element name="qualification" type="xs:token"
abstract="false" nillable="false"/>
<xs:element name="born" type="xs:date"
abstract="false" nillable="false"/>
<xs:element name="dead" type="xs:date"
abstract="false" nillable="false"/>
<xs:element name="isbn" type="xs:unsignedLong"
abstract="false" nillable="false"/>
<xs:attribute name="id" type="xs:ID"/>
<xs:attribute name="available" type="xs:boolean"/>
<xs:attribute name="lang" type="xs:language"/>
<xs:element name="title" abstract="false" nillable="false">
<xs:complexType mixed="false">
<xs:simpleContent>
<xs:extension base="xs:token">
<xs:attribute ref="lang" use="optional"/>
</xs:extension>
</xs:simpleContent>
</xs:complexType>
</xs:element>
<xs:element name="library" abstract="false" nillable="false">
<xs:complexType mixed="false">
<xs:sequence minOccurs="1" maxOccurs="1">
<xs:element ref="book" maxOccurs="unbounded" minOccurs="1"/>
</xs:sequence>
</xs:complexType>
</xs:element>
<xs:element name="author" abstract="false" nillable="false">
<xs:complexType mixed="false">
<xs:sequence minOccurs="1" maxOccurs="1">
<xs:element ref="name" minOccurs="1" maxOccurs="1"/>
<xs:element ref="born" minOccurs="1" maxOccurs="1"/>
<xs:element ref="dead" minOccurs="0" maxOccurs="1"/>
</xs:sequence>
<xs:attribute ref="id" use="optional"/>
</xs:complexType>
</xs:element>
<xs:element name="book" abstract="false" nillable="false">
<xs:complexType mixed="false">
<xs:sequence minOccurs="1" maxOccurs="1">
<xs:element ref="isbn" minOccurs="1" maxOccurs="1"/>
<xs:element ref="title" minOccurs="1" maxOccurs="1"/>
<xs:element ref="author" minOccurs="0"
maxOccurs="unbounded"/>
<xs:element ref="character" minOccurs="0"
maxOccurs="unbounded"/>
</xs:sequence>
<xs:attribute ref="id" use="optional"/>
<xs:attribute ref="available" use="optional"/>
</xs:complexType>
</xs:element>
<xs:element name="character" abstract="false" nillable="false">
<xs:complexType mixed="false">
<xs:sequence minOccurs="1" maxOccurs="1">
<xs:element ref="name" minOccurs="1" maxOccurs="1"/>
<xs:element ref="born" minOccurs="1" maxOccurs="1"/>
<xs:element ref="qualification" minOccurs="1"
maxOccurs="1"/>
</xs:sequence>
<xs:attribute ref="id" use="optional"/>
</xs:complexType>
</xs:element>
</xs:schema>
I wanted to extract the attribute name and type from this xsd. Following is my XQuery:
if (xdmp:database-name(xdmp:database()) ne 'Schemas')
then error(
QName('', 'NOT-SCHEMAS'), 'make sure the content-source is Schemas')
else
doc('tutorial.xsd')
/descendant::xs:element/@name
(: results :)
I am getting the following:
name
qualification
born
dead
isbn
title
library
author
book
character
but I need the attribute and the value together
name xs:token
qualification xs:token
born xs:token
Can someone help me rewrite the Xquery to achive this above output?
You just need to loop through the elements, then get the attributes for each. In the return statement below, you can combine them into a string, put them into a map, or whatever you need to do with them.
if (xdmp:database-name(xdmp:database()) ne 'Schemas') then
error(
QName('', 'NOT-SCHEMAS'), 'make sure the content-source is Schemas')
else
for $element in doc('tutorial.xsd')/descendant::xs:element
where $element/@name and $element/@type
return $element/@name || " is a " || $element/@type
The where
clause requires both the name and type attributes to be present. You can change it to an or
to get either of them, or you just require $element/@name
if you want all names, event when types are not present.