protected function _buildCountQuery($uri, $setup)
{
$query = new Erfurt_Sparql_Query2();
$query->addProjectionVar(new Erfurt_Sparql_Query2_Var('resourceUri'));
$query->setCountStar(true);
$query->setDistinct();
$query->addElements(NavigationHelper::getInstancesTriples($uri, $setup));
// error logging
$this->_owApp->logger->info('NavigationController: COUNTQUERY: ' . $query->__toString());
//*/
return $query;
}
/**
* Handles search requests
*/
public function searchAction()
{
$title = $this->_owApp->translate->_('Resource Search');
$this->view->placeholder('main.window.title')->set($title);
OntoWiki::getInstance()->getNavigation()->disableNavigation();
$store = $this->_erfurt->getStore();
if (isset($this->_owApp->selectedModel) && null !== $this->_owApp->selectedModel) {
$modelUri = $this->_owApp->selectedModel->getModelIri();
} else {
$modelUri = null;
}
if ($this->_request->getParam('searchtext-input') !== null) {
$searchText = trim($this->getParam('searchtext-input'));
}
$error = false;
$errorMsg = '';
// check if search is already errorenous
if (!$error) {
// try sparql query pre search check (with limit to 1)
$elements = $store->getSearchPattern($searchText, $modelUri);
$query = new Erfurt_Sparql_Query2();
$query->addElements($elements);
$query->setLimit(1);
$query->addFrom($modelUri);
try {
$store->sparqlQuery($query);
} catch (Exception $e) {
// build error message
$this->_owApp->appendMessage(new OntoWiki_Message($this->_owApp->translate->_('search failed'), OntoWiki_Message::ERROR));
$error = true;
$errorMsg .= 'Message details: ';
$errorMsg .= str_replace('LIMIT 1', '', $e->getMessage());
}
}
// if error occured set output for error page
if ($error) {
$this->view->errorMsg = $errorMsg;
} else {
// set redirect to effective search controller
$url = new OntoWiki_Url(array('controller' => 'list'), array());
$url->setParam('s', $searchText);
$url->setParam('init', '1');
$this->_redirect($url);
}
}
/**
* Searches the local database for URIs. If mode is set to properties only,
* only defined properties and URIs that are used at least once as a
* property are returned.
*
* the classes array is used for class restrictions
*
* @param array $termsArray
* @param string $modelUri
* @param int $mode
* @param int $limit
* @param array $classes
*
* @return array
*/
private function _searchLocal(array $termsArray, $modelUri, $mode, $limit, $classes = array())
{
if ($mode === self::SEARCH_MODE_PROPERTIES) {
return $this->_searchLocalPropertiesOnly($termsArray, $modelUri, $limit);
}
$store = Erfurt_App::getInstance()->getStore();
// get a store specific text-search query2 object
$searchPattern = $store->getSearchPattern(implode(" ", $termsArray), $modelUri);
$query = new Erfurt_Sparql_Query2();
$query->addElements($searchPattern);
$projVar = new Erfurt_Sparql_Query2_Var('resourceUri');
$query->addProjectionVar($projVar);
// add class restriction patterns for each class
foreach ($classes as $class) {
$classPattern = new Erfurt_Sparql_Query2_GroupGraphPattern();
$classPattern->addTriple($projVar, new Erfurt_Sparql_Query2_IriRef(EF_RDF_TYPE), new Erfurt_Sparql_Query2_IriRef($class));
$query->addElement($classPattern);
}
$query->setLimit(20);
$query->setDistinct(true);
$queryResult = $store->sparqlQuery($query, array('result_format' => 'extended'));
$tempResult = array();
foreach ($queryResult['results']['bindings'] as $row) {
$object = isset($row['o']) ? $row['o']['value'] : null;
$weight = $this->_getWeight($termsArray, $row['resourceUri']['value'], $object);
if (isset($tempResult[$row['resourceUri']['value']])) {
if ($weight > $tempResult[$row['resourceUri']['value']]) {
$tempResult[$row['resourceUri']['value']] = $weight;
}
} else {
$tempResult[$row['resourceUri']['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 = $this->_owApp->translate;
// create different source description strings
if (count($classes) > 0) {
$sourceString = $translate->_('Local Search') . ' (' . $translate->_('recommended') . ')';
} else {
$sourceString = $translate->_('Local Search');
}
$result = array();
foreach ($tempResult as $uri => $w) {
$title = $titleHelper->getTitle($uri);
if (null !== $title) {
$result[$uri] = str_replace('|', 'Ι', $title) . '|' . $uri . '|' . $sourceString;
} else {
$result[$uri] = OntoWiki_Utils::compactUri($uri) . $uri . '|' . $sourceString;
}
}
return $result;
}
