Hi Glenn,
I've just been trying to figure out why I couldn't get XSD validation
to work at all, never mind if I stripped out the attributes, and I
just spotted a validate_schema method of XML::Document that made
validation instantly work for me.
So the code you have above would look something like this:
...
document = XML::Document.file("test.xml")
schema = XML::Schema.from_string(xsd_string)
...
document.validate_schema(schema) # should return true if your doc
matches your schema
Incidentally I couldn't find this method mentioned in the rdocs
anywhere I only saw it by spotting it in the list of methods of
XML::Document. For example in an irb session:
document = XML::Document.new
document.methods.sort # prints out all methods that
document responds to
On Jan 7, 6:14 am, GlennNZ <[EMAIL PROTECTED]> wrote:
> I'm following through the w3schools tutorial on xsd and xml validation
> and I'm trying to get one of the examples to validate. The problem
> seems to be in validating the attributes because if I strip them out,
> then it validates fine. I'm blindly following the tutorial but I can't
> see anything wrong with the xsd file, so dare I question if there is a
> bug?
>
> Stripping out the w3schools example somewhat, if I was to take the
> following schema:
>
> <?xml version="1.0" encoding="ISO-8859-1" ?>
> <xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema";>
>
> <!-- definition of attributes -->
> <xs:attribute name="orderid" type="xs:string"/>
>
> <xs:element name="shiporder">
> <xs:complexType>
> <xs:attribute ref="orderid" use="required"/>
> </xs:complexType>
> </xs:element>
>
> </xs:schema>
>
> An xml file:
>
> <?xml version="1.0" encoding="ISO-8859-1"?>
>
> <shiporder orderid="889923" xmlns:xsi="http://www.w3.org/2001/
> XMLSchema-instance" xsi:noNamespaceSchemaLocation="validator.xsd">
>
> </shiporder>
>
> and a test script:
>
> require 'xml/libxml'
> include XML
>
> xsd_string = ""
>
> File.open('validator.xsd', 'r') do |f1|
> while line = f1.gets
> xsd_string += line
> end
> end
>
> doc = Document.file('test.xml')
>
> schema = XML::Schema.from_string( xsd_string )
>
> print doc.validate(schema)
>
> Then I get the following errors
>
> >ruby test.rb
>
> false
> error -- found validity error: No declaration for attribute orderid of
> element shiporder
> error -- found validity error: No declaration for attribute
> noNamespaceSchemaLocation of element shiporder
> error -- found validity error: No declaration for attribute xmlns:xsi
> of element shiporder
>
> I would have thought that the attribute declaration of orderid would
> avoid the first error, and that the other two attributes wouldn't need
> to be declared.
>
> If the examples are really unclear, the complete xml and xsd is
> available athttp://www.w3schools.com/schema/schema_example.asp
>
> Cheers
> _______________________________________________
> libxml-devel mailing list
> [EMAIL PROTECTED]://rubyforge.org/mailman/listinfo/libxml-devel
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