/**
* Searches for properties in the local database.
*
* @param array $termsArray
* @param string $modelUri
* @param int $limit
*
* @return array
*/
private function _searchLocalPropertiesOnly(array $termsArray, $modelUri, $limit)
{
require_once 'Erfurt/Sparql/SimpleQuery.php';
$query = new Erfurt_Sparql_SimpleQuery();
$query->setProloguePart('SELECT DISTINCT ?uri ?o');
if (null !== $modelUri) {
$query->addFrom($modelUri);
}
$where = '{ { ?uri ?p ?o . ?uri <' . EF_RDF_TYPE . '> ?o2 .
FILTER (
sameTerm(?o2, <http://www.w3.org/1999/02/22-rdf-syntax-ns#Property>) ||
sameTerm(?o2, <http://www.w3.org/2002/07/owl#DatatypeProperty>) ||
sameTerm(?o2, <http://www.w3.org/2002/07/owl#ObjectProperty>)
)
FILTER ((';
$uriRegexFilter = array();
foreach ($termsArray as $t) {
$uriRegexFilter[] = 'regex(str(?uri), "' . $t . '", "i")';
}
$where .= implode(' && ', $uriRegexFilter) . ') || (isLiteral(?o) && ';
$oRegexFilter = array();
foreach ($termsArray as $t) {
$oRegexFilter[] = 'regex(?o, "' . $t . '", "i")';
}
$where .= implode(' && ', $oRegexFilter) . ')) } UNION {';
$where .= '?s ?uri ?o .
FILTER (';
$where .= implode(' && ', $uriRegexFilter) . ') } }';
$query->setWherePart($where);
$query->setOrderClause('?uri');
$query->setLimit($limit);
$store = Erfurt_App::getInstance()->getStore();
$queryResult = $store->sparqlQuery($query, array('result_format' => 'extended'));
$tempResult = array();
foreach ($queryResult['results']['bindings'] as $row) {
if ($row['o']['type'] === 'literal') {
$weight = $this->_getWeight($termsArray, $row['uri']['value'], $row['o']['value']);
} else {
$weight = $this->_getWeight($termsArray, $row['uri']['value']);
}
if (isset($tempResult[$row['uri']['value']])) {
if ($weight > $tempResult[$row['uri']['value']]) {
$tempResult[$row['uri']['value']] = $weight;
}
} else {
$tempResult[$row['uri']['value']] = $weight;
}
}
arsort($tempResult);
require_once 'OntoWiki/Model/TitleHelper.php';
require_once 'OntoWiki/Utils.php';
if (null !== $modelUri) {
$model = $store->getModel($modelUri, false);
$titleHelper = new OntoWiki_Model_TitleHelper($model);
} else {
$titleHelper = new OntoWiki_Model_TitleHelper();
}
$titleHelper->addResources(array_keys($tempResult));
$translate = $this->_owApp->translate;
$result = array();
foreach ($tempResult as $uri => $w) {
$title = $titleHelper->getTitle($uri);
if (null !== $title) {
$result[$uri] = str_replace('|', 'Ι', $title) . '|' . $uri . '|' . $translate->_('Local Search');
} else {
$result[$uri] = OntoWiki_Utils::compactUri($uri) . $uri . '|' . $translate->_('Local Search');
}
}
return $result;
}
/**
* Returns an array of predicate values for the current resource.
* The array is indexed with the predicate's URIs.
*
* @return array
*/
public function getValues()
{
if (null === $this->_valueResults) {
$this->_valueResults = array();
// get results
$results = $this->getQueryResults();
// load predicates first
$this->getPredicates();
// URL object to build URLs
$url = new OntoWiki_Url(array('route' => 'properties'), array('r'));
// keep track of URI objects already used
$objects = array();
foreach ($results as $graph => $resultsForGraph) {
$this->_valueResults[$graph] = array();
foreach ($resultsForGraph as $row) {
$predicateUri = $row['predicate']['value'];
if (!array_key_exists($predicateUri, $objects)) {
$objects[$predicateUri] = array();
}
// create space for value information if not exists
if (!array_key_exists($predicateUri, $this->_valueResults[$graph])) {
$this->_valueResults[$graph][$predicateUri] = array();
}
// default values
$value = array('content' => null, 'object' => null, 'object_hash' => null, 'datatype' => null, 'lang' => null, 'url' => null, 'uri' => null, 'curi' => null);
switch ($row['object']['type']) {
case 'uri':
// every URI objects is only used once for each statement
if (in_array($row['object']['value'], $objects[$predicateUri])) {
continue;
}
// URL
$url->setParam('r', $row['object']['value'], true);
$value['url'] = (string) $url;
// URI
$value['uri'] = $row['object']['value'];
// title
$title = $this->_titleHelper->getTitle($row['object']['value']);
/**
* @trigger onDisplayObjectPropertyValue Triggered if an object value of some
* property is returned. Plugins can attach to this trigger in order to modify
* the value that gets displayed.
* Event payload: value, property, title and link
*/
// set up event
$event = new Erfurt_Event('onDisplayObjectPropertyValue');
$event->value = $row['object']['value'];
$event->property = $predicateUri;
$event->title = $title;
$event->link = (string) $url;
// trigger
$value['object'] = $event->trigger();
if (!$event->handled()) {
// object (modified by plug-ins)
$value['object'] = $title;
}
array_push($objects[$predicateUri], $row['object']['value']);
break;
case 'typed-literal':
$event = new Erfurt_Event('onDisplayLiteralPropertyValue');
$value['datatype'] = OntoWiki_Utils::compactUri($row['object']['datatype']);
$literalString = Erfurt_Utils::buildLiteralString($row['object']['value'], $row['object']['datatype']);
$value['object_hash'] = md5($literalString);
$event->value = $row['object']['value'];
$event->datatype = $row['object']['datatype'];
$event->property = $predicateUri;
$value['object'] = $event->trigger();
// keep unmodified value in content
$value['content'] = $row['object']['value'];
if (!$event->handled()) {
// object (modified by plug-ins)
$value['object'] = $row['object']['value'];
}
break;
case 'literal':
// original (unmodified) for RDFa
$value['content'] = $row['object']['value'];
$literalString = Erfurt_Utils::buildLiteralString($row['object']['value'], null, isset($row['object']['xml:lang']) ? $row['object']['xml:lang'] : null);
$value['object_hash'] = md5($literalString);
/**
* @trigger onDisplayLiteralPropertyValue Triggered if a literal value of some
* property is returned. Plugins can attach to this trigger in order to modify
* the value that gets displayed.
*/
$event = new Erfurt_Event('onDisplayLiteralPropertyValue');
$event->value = $row['object']['value'];
$event->property = $predicateUri;
// set literal language
if (isset($row['object']['xml:lang'])) {
$value['lang'] = $row['object']['xml:lang'];
$event->language = $row['object']['xml:lang'];
}
// trigger
$value['object'] = $event->trigger();
// keep unmodified value in content
$value['content'] = $row['object']['value'];
// set default if event has not been handled
if (!$event->handled()) {
$value['object'] = $row['object']['value'];
}
break;
}
// push it only if it doesn't exceed number of items to display
if (count($this->_valueResults[$graph][$predicateUri]) < $this->_limit) {
array_push($this->_valueResults[$graph][$predicateUri], $value);
} else {
$this->_predicateResults[$graph][$predicateUri]['has_more'] = true;
}
if (count($this->_valueResults[$graph][$predicateUri]) > 1) {
// create the "has more link" (used for area context menu as well)
// do it only once per predicate
if (!isset($this->_predicateResults[$graph][$predicateUri]['has_more_link'])) {
//when all values are literal, we dont use a link to the list,but to the query editor
$allValuesAreLiterals = true;
foreach ($this->_valueResults[$graph][$predicateUri] as $value) {
if (isset($value['uri'])) {
$allValuesAreLiterals = false;
}
}
if (!$allValuesAreLiterals) {
$hasMoreUrl = new OntoWiki_Url(array('route' => 'instances', 'action' => 'list'), array());
$filterExp = json_encode(array('filter' => array(array('action' => 'add', 'mode' => 'box', 'id' => 'allvalues', 'property' => $predicateUri, 'isInverse' => true, 'propertyLabel' => "value", 'filter' => 'equals', 'value1' => $this->_uri, 'value2' => null, 'valuetype' => 'uri', 'literaltype' => null, 'hidden' => false))));
$hasMoreUrl->setParam('instancesconfig', $filterExp)->setParam('init', true);
} else {
$hasMoreUrl = new OntoWiki_Url(array('controller' => 'queries', 'action' => 'editor'), array());
$hasMoreUrl->setParam('query', 'SELECT ?value WHERE {<' . $this->_uri . '> <' . $predicateUri . '> ?value}')->setParam('immediate', true);
}
$this->_predicateResults[$graph][$predicateUri]['has_more_link'] = (string) $hasMoreUrl;
}
}
}
}
return $this->_valueResults;
}
}
public function curie($uri)
{
$curi = OntoWiki_Utils::compactUri($uri);
return $curi;
}
