[Esip-drupal] making associations in Drupal for later LOD export

[Adam Shepherd]

Hi Chris, 

Thanks for posing a question here! The way I would do this would be the following:

1. create an entity reference field (https://drupal.org/project/entityreference) on the one of your content types to setup the relationship. 
2. install the rdfx module (https://drupal.org/project/rdfx)
3. enable rdfx and rdf_ui 
4. declare your RDF mappings & namespaces you plan to use at URL: admin/config/services/rdf

At this point you have the option to generate RDF for each entity in a couple of ways: 

1. with the restWS module (https://drupal.org/project/restws), you can expose your RDF by adding the ".rdf" file extension onto a URL like 'node/1234'
- 'node/1234.rdf' returns RDF/XML

2. the rdf_indexer module (https://drupal.org/project/rdf_indexer) can stand up a SPARQL endpoint for your RDF to be queried.
- this was the topic of the June ESIP Drupal call here: http://commons.esipfed.org/node/1597
- I just submitted a patch to this module that provides support for populating external triplestores like Virtuoso here: https://drupal.org/node/2029717#comment-7685267


If you need ANY help, please feel free to contact me as we've gone through this process a few times at WHOI.

cheers, Adam

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Adam Shepherd                                     voice: 508.289.2772
MS #36, Shiverick, WHOI                           fax: 508.289.2009
Woods Hole, MA  02543                         skype: ashep15
ashepherd at whoi.edu                            drupal: ashepherd
 
Biological and Chemical Oceanography Data Management Office
Computer and Information Services
Woods Hole Oceanographic Institution
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On Jul 31, 2013, at 1:03 PM, "Lynnes, Christopher S. (GSFC-6102)" <christopher.s.lynnes at nasa.gov> wrote:

> Hey, we're running Drupal 7 here and are going to have two content types, Data Collection and Tools.  
> We want to associate which Tools are applicable to which Data Collections, so that we can generate links to the Tool pages in a given Data Collection page. 
> Ideally, would also like to be able to extract those relationships into Linked Open Data or some similar semantic web construct.
> Have any of you all done something like this?  What is the best way to do it?
> --
> Dr. Christopher Lynnes     NASA/GSFC, Code 610.2    phone: 301-614-5185
> "Making the simple complicated is commonplace; making the complicated simple, awesomely simple, that's creativity." -- C. Mingus
> 
> 
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