public function __construct(Erfurt_Sparql_Query2_IriRef $type, $member_predicate = EF_RDF_TYPE, Erfurt_Sparql_Query2 $query, $varName = null, $withChilds = true)
{
$this->query = $query;
if ($member_predicate == EF_RDF_TYPE) {
$type = new Erfurt_Sparql_Query2_Abstraction_RDFSClass($type, $withChilds);
$member_predicate = new Erfurt_Sparql_Query2_A();
} else {
$type = new Erfurt_Sparql_Query2_Abstraction_NoClass($type, $member_predicate);
}
if (is_string($member_predicate)) {
$member_predicate = new Erfurt_Sparql_Query2_IriRef($member_predicate);
}
$this->type = $type;
if ($varName == null) {
$this->classVar = new Erfurt_Sparql_Query2_Var($type->getIri());
} else {
$this->classVar = new Erfurt_Sparql_Query2_Var($varName);
}
if (!$member_predicate instanceof Erfurt_Sparql_Query2_Verb) {
throw new RuntimeException('Argument 2 passed to Erfurt_Sparql_Query2_Abstraction_ClassNode::__construct must be an instance of Erfurt_Sparql_Query2_IriRef or string instance of ' . typeHelper($member_predicate) . ' given');
}
$subclasses = $type->getSubclasses();
if (count($subclasses) > 1) {
//the class itself is somehow included in the subclasses...
$typeVar = new Erfurt_Sparql_Query2_Var($type->getIri());
$typePart = new Erfurt_Sparql_Query2_Triple($this->classVar, $member_predicate, $typeVar);
$this->query->getWhere()->addElement($typePart);
$or = new Erfurt_Sparql_Query2_ConditionalOrExpression();
foreach ($subclasses as $subclass) {
$or->addElement(new Erfurt_Sparql_Query2_sameTerm($typeVar, $subclass));
}
$filter = new Erfurt_Sparql_Query2_Filter($or);
$this->query->getWhere()->addElement($filter);
} else {
$typePart = new Erfurt_Sparql_Query2_Triple($this->classVar, $member_predicate, $type->getIri());
$this->query->getWhere()->addElement($typePart);
}
}
/**
*
* @param string $type the uri of the class
* @param string $id
* @param array $options
*
* @return int id
*/
public function addTypeFilter($type, $id = null, $option = array())
{
if ($id == null) {
$id = 'type' . count($this->_filter);
} else {
if (isset($this->_filter[$id])) {
$this->removeFilter($id);
}
}
//shortcut navigation - only a rdfs class given
$options['mode'] = 'instances';
$options['type'] = $type;
$options['memberPredicate'] = EF_RDF_TYPE;
$options['withChilds'] = isset($option['withChilds']) ? $option['withChilds'] : true;
$options['hierarchyUp'] = EF_RDFS_SUBCLASSOF;
$options['hierarchyIsInverse'] = true;
//$options['hierarchyDown'] = null;
$options['direction'] = 1;
// down the tree
$memberPredicate = $options['memberPredicate'];
if (is_string($memberPredicate)) {
$memberPredicate = new Erfurt_Sparql_Query2_IriRef($memberPredicate);
}
if (!$memberPredicate instanceof Erfurt_Sparql_Query2_Verb) {
throw new RuntimeException('Option "member_predicate" passed to Ontowiki_Model_Instances ' . 'must be an instance of Erfurt_Sparql_Query2_IriRef ' . 'or string instance of ' . typeHelper($memberPredicate) . ' given');
}
$type = new Erfurt_Sparql_Query2_IriRef($options['type']);
$subClasses = array();
if ($options['withChilds']) {
$subClasses = array_keys($this->_store->getTransitiveClosure($this->_graph, $options['hierarchyUp'], array($type->getIri()), $options['hierarchyIsInverse']));
} else {
if (isset($options['subtypes'])) {
//dont query, take the given. maybe the new navigation can use this
$subClasses = $options['subtypes'];
} else {
$subClasses = array();
}
}
if (count($subClasses) > 1) {
// there are subclasses. "1" because the class itself is somehow included in the subclasses...
$typeVar = new Erfurt_Sparql_Query2_Var($type);
$triple = $this->_resourceQuery->addTriple($this->_resourceVar, $memberPredicate, $typeVar);
$or = new Erfurt_Sparql_Query2_ConditionalOrExpression();
foreach ($subClasses as $subclass) {
$or->addElement(new Erfurt_Sparql_Query2_Equals($typeVar, new Erfurt_Sparql_Query2_IriRef($subclass)));
}
$filterObj = $this->_resourceQuery->addFilter($or);
} else {
// no subclasses
$triple = $this->_resourceQuery->addTriple($this->_resourceVar, $memberPredicate, new Erfurt_Sparql_Query2_IriRef($type->getIri()));
}
//save
$this->_filter[$id] = array('id' => $id, 'mode' => 'rdfsclass', 'rdfsclass' => $options['type'], 'withChilds' => $options['withChilds'], 'objects' => array($triple, isset($filterObj) ? $filterObj : null));
//these filters bring there own triple
$this->removeAllTriple();
$this->invalidate();
return $id;
}
/**
* Method that counts already existing distinct datasets for given uri
*
* @param $uri uri string
*
* @return int distinct existing datasets
*/
private function countUriPattern($uri)
{
$query = new Erfurt_Sparql_Query2();
$query->setDistinct(true);
$unions = new Erfurt_Sparql_Query2_GroupOrUnionGraphPattern();
$subjectVar = new Erfurt_Sparql_Query2_Var('s');
$query->addProjectionVar($subjectVar);
// create six temporary vars (not selected in query)
$tempVars = array();
for ($i = 0; $i < 6; $i++) {
$tempVars[] = new Erfurt_Sparql_Query2_Var('var' . $i);
}
$singlePattern = new Erfurt_Sparql_Query2_GroupGraphPattern();
$singlePattern->addTriple($subjectVar, $tempVars[0], $tempVars[1]);
$unions->addElement($singlePattern);
$singlePattern = new Erfurt_Sparql_Query2_GroupGraphPattern();
$singlePattern->addTriple($tempVars[2], $subjectVar, $tempVars[3]);
$unions->addElement($singlePattern);
$singlePattern = new Erfurt_Sparql_Query2_GroupGraphPattern();
$singlePattern->addTriple($tempVars[4], $tempVars[5], $subjectVar);
$unions->addElement($singlePattern);
$query->getWhere()->addElement($unions);
$filter = new Erfurt_Sparql_Query2_ConditionalOrExpression();
$filter->addElement(new Erfurt_Sparql_Query2_Regex($subjectVar, new Erfurt_Sparql_Query2_RDFLiteral('^' . $uri), new Erfurt_Sparql_Query2_RDFLiteral('i')));
$query->addFilter($filter);
$result = $this->_owApp->erfurt->getStore()->countWhereMatches($this->_model->getModelIri(), $query->getWhere(), 's', true);
return $result;
}
