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**Category:** Rails\
**Created:** [June 17, 2009, 8:11pm UTC](https://www.ruby-forum.com/t/valid-rdfa-in-xhtml/170460 "2009-06-17T20:11:35Z")\
**Posts on this page:** 4\
**Page:** 1
**Author:**  [@cephas](https://www.ruby-forum.com/u/cephas)\
**Post date:** [June 17, 2009, 8:11pm UTC](https://www.ruby-forum.com/t/valid-rdfa-in-xhtml/170460/1 "2009-06-17T20:11:35Z")
I am tying to create pages with RDFa.
The two ways I have looked into is:
1. Use builder to create the page
2. Use the RDFa gem
3. Works except that there are some things that I can’t seem to do
with the Builder syntax
4. Works except that it does not create valid XHTML. (Maybe I am using
it incorrectly)
How are people creating valid RDFa pages?
Any recommendations?
Thanks!
- Pete
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**Author:**  [@cephas](https://www.ruby-forum.com/u/cephas)\
**Post date:** [June 17, 2009, 9:17pm UTC](https://www.ruby-forum.com/t/valid-rdfa-in-xhtml/170460/2 "2009-06-17T21:17:54Z")
Hi Pete,
On Wed, 2009-06-17 at 11:10 -0700, Pete wrote:
> How are people creating valid RDFa pages?
>
> Any recommendations?
I haven’t worked with RDFA yet but you might try REXML. It’s a typical
next step when builder falls short.
HTH,
Bill
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**Author:**  [@cephas](https://www.ruby-forum.com/u/cephas)\
**Post date:** [June 17, 2009, 9:45pm UTC](https://www.ruby-forum.com/t/valid-rdfa-in-xhtml/170460/3 "2009-06-17T21:45:34Z")
bill walton wrote:
> Hi Pete,
> On Wed, 2009-06-17 at 11:10 -0700, Pete wrote:
>
> > How are people creating valid RDFa pages?
> >
> > Any recommendations?
>
> I haven’t worked with RDFA yet but you might try REXML. It’s a typical
> next step when builder falls short.
I haven’t worked with RDFa either, but it’s worth remembering that ERb
and Haml will generate XML just as easily as HTML.
> HTH,
> Bill
## Best,
Marnen Laibow-Koser
[http://www.marnen.org](http://www.marnen.org)
removed\_email\_address@domain.invalid
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**Author:**  [@cephas](https://www.ruby-forum.com/u/cephas)\
**Post date:** [July 2, 2009, 2:38am UTC](https://www.ruby-forum.com/t/valid-rdfa-in-xhtml/170460/4 "2009-07-02T02:38:05Z")
I think I discovered why I was not able to create some more complex
XHTML structures, including those for RDFa in builder
The syntax was not what I expected.
For instance:
I thought that this should work, but it does not.
xml.td(:class =\> “family\_title”, “Family”) would get me this Family
However, this does work. You need to have the
xml.td(“Family”, :class =\> “family\_title”) this will get you this Family
One things that I already knew about, but may trip other up is that
you need to also make sure that you have the right mimetype set in
your config/initializers.
Hope this helps someone else 🙂
- Pete