/**
* Adds Type label to list.
*
* @param \EasyRdf_Resource $type
* An EasyRdf_Resource which is a type.
*/
private function addType(\EasyRdf_Resource $type) {
if ($type != NULL) {
// Omit deprecated types.
if ($type->get("schema:supersededBy")) {
return;
}
$this->listTypes[$type->shorten()] = $type->label();
}
}
/**
* Get the label for a resource, preferring 1. the given language 2. configured languages 3. any language.
* @param EasyRdf_Resource $res resource whose label to return
* @param string $lang preferred language
* @return EasyRdf_Literal label as an EasyRdf_Literal object, or null if not found
*/
public function getResourceLabel($res, $lang)
{
$langs = array_merge(array($lang), array_keys($this->config->getLanguages()));
foreach ($langs as $l) {
$label = $res->label($l);
if ($label !== null) {
return $label;
}
}
return $res->label();
// desperate check for label in any language; will return null if even this fails
}
/**
* Iterates over all the properties of the concept and returns those in an array.
* @return array
*/
public function getProperties()
{
$properties = array();
$narrowers_by_uri = array();
$in_a_collection = array();
$members_array = array();
$long_uris = $this->resource->propertyUris();
$duplicates = array();
$ret = array();
// looking for collections and linking those with their narrower concepts
if ($this->vocab->getConfig()->getArrayClassURI() !== null) {
$collections = $this->graph->allOfType($this->vocab->getConfig()->getArrayClassURI());
if (sizeof($collections) > 0) {
// indexing the narrowers once to avoid iterating all of them with every collection
foreach ($this->resource->allResources('skos:narrower') as $narrower) {
$narrowers_by_uri[$narrower->getUri()] = $narrower;
}
foreach ($collections as $coll) {
$curr_coll_members = $this->getCollectionMembers($coll, $narrowers_by_uri);
foreach ($curr_coll_members as $collection) {
if ($collection->getSubMembers()) {
$submembers = $collection->getSubMembers();
foreach ($submembers as $member) {
$in_a_collection[$member->getUri()] = true;
}
}
}
if (isset($collection) && $collection->getSubMembers()) {
$members_array = array_merge($curr_coll_members, $members_array);
}
}
$properties['skos:narrower'] = $members_array;
}
}
foreach ($long_uris as &$prop) {
if (EasyRdf_Namespace::shorten($prop) !== null) {
// shortening property labels if possible
$prop = $sprop = EasyRdf_Namespace::shorten($prop);
} else {
$sprop = "<{$prop}>";
}
// EasyRdf requires full URIs to be in angle brackets
if (!in_array($prop, $this->DELETED_PROPERTIES)) {
$propres = new EasyRdf_Resource($prop, $this->graph);
$proplabel = $propres->label($this->getEnvLang()) ? $propres->label($this->getEnvLang()) : $propres->label();
$propobj = new ConceptProperty($prop, $proplabel);
if ($propobj->getLabel() !== null) {
// only display properties for which we have a label
$ret[$prop] = $propobj;
}
// searching for subproperties of literals too
foreach ($this->graph->allResources($prop, 'rdfs:subPropertyOf') as $subi) {
$suburi = EasyRdf_Namespace::shorten($subi->getUri()) ? EasyRdf_Namespace::shorten($subi->getUri()) : $subi->getUri();
$duplicates[$suburi] = $prop;
}
// Iterating through every literal and adding these to the data object.
foreach ($this->resource->allLiterals($sprop) as $val) {
$literal = new ConceptPropertyValueLiteral($val, $prop);
// only add literals when they match the content/hit language or have no language defined
if (isset($ret[$prop]) && ($literal->getLang() === $this->clang || $literal->getLang() === null)) {
$ret[$prop]->addValue($literal);
}
}
// Iterating through every resource and adding these to the data object.
foreach ($this->resource->allResources($sprop) as $val) {
// skipping narrower concepts which are already shown in a collection
if ($sprop === 'skos:narrower' && array_key_exists($val->getUri(), $in_a_collection)) {
continue;
}
// hiding rdf:type property if it's just skos:Concept
if ($sprop === 'rdf:type' && $val->shorten() === 'skos:Concept') {
continue;
}
// handled by getMappingProperties()
if (in_array($sprop, $this->MAPPING_PROPERTIES)) {
continue;
}
if (isset($ret[$prop])) {
$ret[$prop]->addValue(new ConceptPropertyValue($this->model, $this->vocab, $val, $prop, $this->clang), $this->clang);
}
}
}
}
// adding narrowers part of a collection
foreach ($properties as $prop => $values) {
foreach ($values as $value) {
$ret[$prop]->addValue($value, $this->clang);
}
}
foreach ($ret as $key => $prop) {
if (sizeof($prop->getValues()) === 0) {
unset($ret[$key]);
}
}
$ret = $this->removeDuplicatePropertyValues($ret, $duplicates);
// sorting the properties to the order preferred in the Skosmos concept page.
$ret = $this->arbitrarySort($ret);
return $ret;
}
