DCAT-AP compatibility

[EmidioStani]

Description

By supporting DCAT, DKAN can improve its interoperability.

DKAN already supports DCAT looking at: https://github.com/NuCivic/dkan/blob/935d0c7266f411f641feadda3f4b88188c076784/import/rdf.php

but it seems not updated to the recent standard.

By updating to the recent standard DKAN would be more interoperable with CKAN:

https://github.com/ckan/ckanext-dcat#rdf-dcat-to-ckan-dataset-mapping

User Stories

As CKAN/DKAN site supporting DCAT-AP 1.1 I would like to harvest/be harvested from other portal supporting the latest standard

Tests

Test should be conducted between 2 portals (harvested and harvester)

Documentation

https://joinup.ec.europa.eu/asset/dcat_application_profile/description

Pull Requests

Acceptance Criteria