NatLibFi / Skosmos

     * @param Request $request

     * @return object json-ld wrapped broader concept uris and labels.

     */

    public function broader($request)

    {

        $results = array();

        $broaders = $request->getVocab()->getConceptBroaders($request->getUri(), $request->getLang());

        if ($broaders === null) {

            return $this->returnError('404', 'Not Found', "Could not find concept <{$request->getUri()}>");

        }

        foreach ($broaders as $object => $vals) {

            $results[] = array('uri' => $object, 'prefLabel' => $vals['label']);

        }

        $ret = array_merge_recursive($this->context, array(

            '@context' => array('prefLabel' => 'skos:prefLabel', 'broader' => 'skos:broader', '@language' => $request->getLang()),

            'uri' => $request->getUri(),

            'broader' => $results)

        );

        return $this->returnJson($ret);

    }

    /**

     * Used for querying broader transitive relations for a concept.

     * @param Request $request

     * @return object json-ld wrapped narrower concept uris and labels.

     */

    public function narrower($request)

    {

        $results = array();

        $narrowers = $request->getVocab()->getConceptNarrowers($request->getUri(), $request->getLang());

        if ($narrowers === null) {

            return $this->returnError('404', 'Not Found', "Could not find concept <{$request->getUri()}>");

        }

        foreach ($narrowers as $object => $vals) {

            $results[] = array('uri' => $object, 'prefLabel' => $vals['label']);

        }

        $ret = array_merge_recursive($this->context, array(

            '@context' => array('prefLabel' => 'skos:prefLabel', 'narrower' => 'skos:narrower', '@language' => $request->getLang()),

            'uri' => $request->getUri(),

            'narrower' => $results)

        );

        return $this->returnJson($ret);

    }

    /**

     * Used for querying narrower transitive relations for a concept.