Re: [Rdfapi-php-interest] How to avoid duplicates rdf entities?

[Michele P. <mic...@gm...>]

Hey everybody,

I solved the issue so I thought someone else could have benefited from this.

The problem was that every time I was referencing to a resource, this was
created using the RDF:ID construct. Which is ok, as far as the resource is
not mentioned anymore using the same RDF:iD construct. Which for some
reasons was not happening .......The W3c RDF specs say:

"So for example if rdf:ID="name", that would be equivalent to
rdf:about="#name". rdf:ID provides an additional check since the same
*name*can only appear once in the scope of an
xml:base value (or document, if none is given) [...]"

My knowledge of RAP is limited, but for some reasons when the namespace was
set, it kept creating RDF:ID references irrespectively of whether it wasnt
the first time the resource is mentioned. And subsequently the RDF validator
was throwing an error......After a few trials I realized that the source of
the error was the  BASEURI declaration at the beginning:

$Model->setBaseURI(COHERE_NS);

once I got rid of that and started using full uris when creating new
Resources, the output was using RDF:ABOUT and thus it validates too.

rdf:About = rdf:about="http://cohere.......website_13710..................."

instead of the previous

rdf:ID="website_13710........"

does it make sense to anybody?

mik

On Wed, Apr 2, 2008 at 2:01 PM, Michele Pasin <mic...@gm...>
wrote:

> Hey Tom,
>
> sorry about the 'node' class, i'm so used to it I don't find it confusing
> anymore. So here's a simplified example in PHP, which you can easily run by
> yourself. Basically all I'm trying to write is 3 triples as follows:
>
> ($ID ---> rdf:TYPE -----> "http://cohereweb.net/ontology/cohere.owl#node")
> ($authorID ---> rdf:TYPE -----> "
> http://cohereweb.net/ontology/cohere.owl#cohere_user")
> ($ID ---> ""http://cohereweb.net/ontology/cohere.owl#has_creator" ----->
> $name)
>
>
> And here's the code:
> ........................................
> ....................
>