protected function _buildStringSearchQuery($setup)
{
// define vars
$searchVar = new Erfurt_Sparql_Query2_Var('resourceUri');
$subVar = new Erfurt_Sparql_Query2_Var('sub');
// define query
$query = new Erfurt_Sparql_Query2();
$query->addProjectionVar($searchVar);
$query->setDistinct();
// init union var
$union = new Erfurt_Sparql_Query2_GroupOrUnionGraphPattern();
// parse config
if (isset($setup->config->hierarchyRelations->out)) {
foreach ($setup->config->hierarchyRelations->out as $rel) {
// create new graph pattern
$groupPattern = new Erfurt_Sparql_Query2_GroupGraphPattern();
// add triplen
$groupPattern->addTriple($searchVar, new Erfurt_Sparql_Query2_IriRef($rel), $subVar);
// add triplet to union var
$union->addElement($groupPattern);
}
}
// parse config
if (isset($setup->config->hierarchyRelations->in)) {
foreach ($setup->config->hierarchyRelations->in as $rel) {
// create new graph pattern
$groupPattern = new Erfurt_Sparql_Query2_GroupGraphPattern();
// add triplen
$groupPattern->addTriple($subVar, new Erfurt_Sparql_Query2_IriRef($rel), $searchVar);
// add triplet to union var
$union->addElement($groupPattern);
}
}
// parse config
if (isset($setup->config->instanceRelation->out)) {
foreach ($setup->config->instanceRelation->out as $rel) {
// create new graph pattern
$groupPattern = new Erfurt_Sparql_Query2_GroupGraphPattern();
// add triplen
$groupPattern->addTriple($subVar, new Erfurt_Sparql_Query2_IriRef($rel), $searchVar);
// add triplet to union var
$union->addElement($groupPattern);
}
}
// parse config
if (isset($setup->config->instanceRelation->in)) {
foreach ($setup->config->instanceRelation->in as $rel) {
// create new graph pattern
$groupPattern = new Erfurt_Sparql_Query2_GroupGraphPattern();
// add triplen
$groupPattern->addTriple($searchVar, new Erfurt_Sparql_Query2_IriRef($rel), $subVar);
// add triplet to union var
$union->addElement($groupPattern);
}
}
$query->addElement($union);
// add regex filter for search string
$query->addFilter(new Erfurt_Sparql_Query2_Regex(new Erfurt_Sparql_Query2_Str($searchVar), new Erfurt_Sparql_Query2_RDFLiteral($setup->state->searchString)));
return $query;
}
/**
* Builds the SPARQL query
*/
private function _buildQueries()
{
$query = new Erfurt_Sparql_Query2();
$uri = new Erfurt_Sparql_Query2_IriRef($this->_uri);
$predVar = new Erfurt_Sparql_Query2_Var('predicate');
$objVar = new Erfurt_Sparql_Query2_Var('object');
$query->addTriple($uri, $predVar, $objVar);
$query->addFilter(new Erfurt_Sparql_Query2_UnaryExpressionNot(new Erfurt_Sparql_Query2_isBlank($objVar)));
if (!empty($this->_ignoredPredicates)) {
$or = new Erfurt_Sparql_Query2_ConditionalAndExpression();
$filter = new Erfurt_Sparql_Query2_Filter($or);
foreach ($this->_ignoredPredicates as $ignored) {
$or->addElement(new Erfurt_Sparql_Query2_UnaryExpressionNot(new Erfurt_Sparql_Query2_sameTerm($predVar, new Erfurt_Sparql_Query2_IriRef($ignored))));
}
$query->getWhere()->addElement($filter);
}
$query->setDistinct(true)->addProjectionVar($predVar)->addProjectionVar($objVar)->getOrder()->add($predVar);
$queries = array();
$closure = Erfurt_App::getInstance()->getStore()->getImportsClosure($this->_model->getModelUri(), true);
$queryGraphs = array_merge(array($this->_graph), $closure);
foreach ($queryGraphs as $currentGraph) {
$query->setFroms(array($currentGraph));
$queries[$currentGraph] = clone $query;
}
return $queries;
}
/**
* 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;
}
