/**
* Returns the property values for all resources at once.
* This method generate one SPARQL query to receive all values .
* Original Name was getValues()
* @return array
*/
public function getValuesBySingleQuery()
{
if ($this->_valuesUptodate) {
return $this->_values;
} else {
$this->updateValueQuery();
}
if (empty($this->_resources)) {
return array();
}
$this->getResults();
$result = array();
if (isset($this->_results['results']['bindings'])) {
$result = $this->_results['results']['bindings'];
}
//fill titlehelper
foreach ($result as $row) {
foreach ($this->_shownProperties as $property) {
if (isset($row[$property['varName']]) && $row[$property['varName']]['type'] == 'uri' && substr($row[$property['varName']]['value'], 0, 2) != '_:') {
$this->_titleHelper->addResource($row[$property['varName']]['value']);
}
}
if (isset($row['__TYPE']) && $row['__TYPE']['type'] == 'uri') {
$this->_titleHelper->addResource($row['__TYPE']['value']);
}
$this->_titleHelper->addResource($row[$this->_resourceVar->getName()]['value']);
}
$valueResults = array();
foreach ($result as $row) {
$resourceUri = $row[$this->_resourceVar->getName()]['value'];
if (!array_key_exists($resourceUri, $valueResults)) {
$valueResults[$resourceUri] = array();
}
$url = new OntoWiki_Url(array('route' => 'properties'), array('r'));
$value = null;
$link = null;
foreach ($row as $varName => $data) {
if (!isset($valueResults[$resourceUri][$varName])) {
$valueResults[$resourceUri][$varName] = array();
}
if ($data['type'] == 'uri') {
if (substr($data['value'], 0, 2) == '_:') {
continue;
// skip blanknode values here due to backend problems with filters
}
// object type is uri --> handle object property
$objectUri = $data['value'];
$url->setParam('r', $objectUri, true);
$link = (string) $url;
// set up event
$event = new Erfurt_Event('onDisplayObjectPropertyValue');
//find uri
foreach ($this->_shownProperties as $property) {
if ($varName == $property['varName']) {
$event->property = $property['uri'];
}
}
$event->value = $objectUri;
// trigger
$value = $event->trigger();
// set default if event has not been handled
if (!$event->handled()) {
$value = $this->_titleHelper->getTitle($objectUri);
}
} else {
// object is a literal
$object = $data['value'];
$propertyUri = null;
foreach ($this->_shownProperties as $property) {
if ($varName == $property['varName']) {
$propertyUri = $property['uri'];
}
}
if ($object !== null) {
// set up event
$event = new Erfurt_Event('onDisplayLiteralPropertyValue');
$event->property = $propertyUri;
$event->value = $object;
$event->setDefault($object);
// trigger
$value = $event->trigger();
}
}
//check for dulplicate values
if (isset($valueResults[$resourceUri][$varName])) {
foreach ($valueResults[$resourceUri][$varName] as $old) {
if ($old['origvalue'] == $data['value'] && $old['type'] == $data['type']) {
$link = null;
continue 2;
// dont add this value
}
}
}
//add value
$valueResults[$resourceUri][$varName][] = array('value' => $value, 'origvalue' => $data['value'], 'type' => $data['type'], 'url' => $link, 'uri' => $data['value']);
$value = null;
$link = null;
}
}
foreach ($this->getShownResources() as $resource) {
if (!isset($valueResults[$resource['value']])) {
//there are no statements about this resource
$valueResults[$resource['value']] = array();
}
}
$this->_values = $valueResults;
$this->_valuesUptodate = true;
return $valueResults;
}
/**
* 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;
}
}
/**
* Builds the query part of the URL
*/
protected function _buildQuery()
{
$event = new Erfurt_Event('onBuildUrl');
$event->base = $this->_base;
$event->route = $this->_route;
$event->controller = $this->_controller;
$event->action = $this->_action;
$event->params = $this->_params;
$urlCreated = $event->trigger();
if ($event->handled()) {
if ($urlCreated && isset($event->url)) {
return $event->url;
} else {
$this->_params = $event->params;
$this->_controller = $event->controller;
$this->_action = $event->action;
$this->_route = $event->route;
}
}
// check params
foreach ($this->_params as $name => $value) {
if (is_string($value) && preg_match('/\\//', $value)) {
$this->_useSefUrls = false;
}
}
$url = '';
if ($this->_route) {
// checking if reset of route-defaults necessary
// fixes pager usage fails on versioning pages
if (count($this->_route->getDefaults()) == 0) {
$resetRoute = false;
} else {
$resetRoute = true;
}
if ($this->_useSefUrls) {
// let the route assemble the whole URL
$url = $this->_route->assemble($this->_params, $resetRoute, true);
} else {
// we will assign parameters ourselves
$url = $this->_route->assemble(array(), $resetRoute);
$url = sprintf('%s/%s', $url, '?' . http_build_query($this->_params, '&'));
}
} else {
if ($this->_useSefUrls) {
$query = '';
$lastKey = '';
foreach ($this->_params as $key => $value) {
if (is_scalar($value)) {
$value = urlencode($value);
$query .= "{$key}/{$value}/";
$lastKey = $key;
}
}
// remove trailing slash
$query = rtrim($query, '/');
} else {
$query = '?' . http_build_query($this->_params, '&');
}
$parts = array_filter(array($this->_controller, $this->_action, $query));
$url = implode('/', $parts);
}
// HACK:
$this->_useSefUrls = true;
return $this->_base . ltrim($url, '/');
}
