NatLibFi / Skosmos

     * @return string array class URI or null

     */

    public function getAdditionalSearchProperties()

    {

        $resources = $this->resource->allResources("skosmos:showPropertyInSearch");

        $ret = array();

        foreach ($resources as $res) {

            $prop = $res->getURI();

            if (EasyRdf\RdfNamespace::shorten($prop) !== null) // shortening property labels if possible

            {

                $prop = EasyRdf\RdfNamespace::shorten($prop);

            }

            $ret[] = $prop;

        }

        return $ret;

    }

    /**

     * Queries whether the property should be shown with all the label language variations.

     * @return string array class URI or null

     */

    public function getHierarchyProperty()

    {

        $resources = $this->resource->allResources("skosmos:hierarchyProperty");

        $ret = array();

        foreach ($resources as $res) {

            $prop = $res->getURI();

            if (EasyRdf\RdfNamespace::shorten($prop) !== null) // prefixing if possible 

            {

                $prop = EasyRdf\RdfNamespace::shorten($prop);

            }

            $ret[] = $prop;

        }

        return empty($ret) ? array('skos:broader') : $ret;

    }

    /**

     * Returns a boolean value set in the vocabularies.ttl config.