Alistair:
Just a reminder that the ResourceIndex is built on Mulgara, and RISearch
passes itql queries through to Mulgara as well; thus the Mulgara itql
documentation is of use to Fedora users:
http://docs.mulgara.org/itqlcommands/select.html
Those are slightly old, but they do include an example of using parens to
group query clauses.
Regards,
Ben
On Fri, Jan 18, 2013 at 7:57 AM, Alistair Young <alistair.yo...@uhi.ac.uk>wrote:
> Looks like this does it:
>
> and ($object <
> http://www.uhi.ac.uk/ontologies/ltk/relationships#isInCategory>
> <info:fedora/test_category_1>
> or $object <
> http://www.uhi.ac.uk/ontologies/ltk/relationships#isInCategory>
> <info:fedora/test_category_2>)
>
> Alistair
>
>
> From: Alistair Young <alistair.yo...@uhi.ac.uk>
> Reply-To: "Support and info exchange list for Fedora users." <
> fedora-commons-users@lists.sourceforge.net>
> Date: Friday, 18 January 2013 10:56
> To: "Support and info exchange list for Fedora users." <
> fedora-commons-users@lists.sourceforge.net>
> Subject: [fcrepo-user] grouping itql queries
>
> Hello good folk, I'm hoping this is possible:
>
> Using risearch I can query against a dc:subject as well as being in a
> category (collection):
>
> select $object $title $subject from <#ri>
> where $object <dc:subject> 'test'
> and $object <dc:title> $title
> and $object <dc:subject> $subject
> and $object <
> http://www.uhi.ac.uk/ontologies/ltk/relationships#isInCategory>
> <info:fedora/test_category_1>
> or $object <
> http://www.uhi.ac.uk/ontologies/ltk/relationships#isInCategory>
> <info:fedora/test_category_2>
>
> Problem is the 'or' clause finds all objects in test_category_2 independent
> of the subject search. What I need is:
>
> Object has dc:subject='test' and is in either test_category_1
> or test_category_2
>
> Is there a way to evaluate:
>
> subject=test and (isInCategory=test_category_1 or
> isInCategory=test_category_2)
>
> Thanks,
>
> Alistair
>
>
>
>
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