public function getComments(\DateTime $startDate, \DateTime $endDate)
{
$startDate = (new Literal\DateTime($startDate))->dumpValue('text');
$endDate = (new Literal\DateTime($endDate))->dumpValue('text');
$query = <<<QUERY
select ?comment ?author ?creationDate ?entity ?entityAuthor ?parent ?parentAuthor
where {
?comment a tal:Comment .
?comment tal:author ?author .
?comment tal:relatedObject ?entity .
OPTIONAL {
?comment tal:parent ?parent .
?parent tal:author ?parentAuthor .
} .
OPTIONAL {
?entity tal:author ?entityAuthor .
}.
?comment tal:creationDate ?creationDate .
FILTER (?creationDate > {$startDate} && ?creationDate < {$endDate}) .
}
QUERY;
echo $query;
$result = $this->endpoint->query($query);
return $result;
}
public function persist($entity)
{
$reflection = new \ReflectionClass($entity);
$originURI = $entity->getOrigin();
if (!$originURI) {
throw new \Exception("Cannot persist entity, because origin URI is not defined");
}
$sparql = '';
$annotationReader = new AnnotationReader();
$iri = $annotationReader->getClassAnnotation($reflection, 'Soil\\DiscoverBundle\\Annotation\\Iri');
if ($iri) {
$iri = $iri->value;
$sparql .= "<{$originURI}> rdf:type {$iri} . " . PHP_EOL;
}
$props = $reflection->getProperties();
foreach ($props as $prop) {
$matchAnnotation = $annotationReader->getPropertyAnnotation($prop, 'Soil\\DiscoverBundle\\Annotation\\Iri');
if ($matchAnnotation && $matchAnnotation->persist) {
$match = $matchAnnotation->value;
$prop->setAccessible(true);
$value = $prop->getValue($entity);
$sparql .= "<{$originURI}> {$match} <{$value}> . " . PHP_EOL;
}
}
if ($sparql) {
$this->logger->addInfo('Persisting: ');
$this->logger->addInfo($sparql);
$num = $this->endpoint->insert($sparql);
$this->logger->addInfo('Return: ' . print_r($num, true));
return $num;
} else {
return null;
}
}
/**
* Perform query
*
* @param string $item
* @param array $arguments
* @return \EasyRdf\Graph|\EasyRdf\Sparql\Result
*/
private function query($item, array $arguments = [])
{
$sparql = preg_replace_callback('/%(\\d+)%/', function (array $matches) use($arguments) {
$position = intval($matches[1], 10) - 1;
$value = $arguments[$position];
return $value;
}, $this->queries[$item]);
return $this->sparqlClient->query($sparql);
}
public function subscribe($agentURI, $digestSubscriptionURI, $period)
{
$index = 1;
$query = <<<INSERT
<{$agentURI}> tal:subscriptionApplied _:b{$index} .
_:b{$index} tal:subscriptionType <{$digestSubscriptionURI}> .
_:b{$index} tal:subscriptionPeriod {$period} .
INSERT;
$graphIRI = 'tal:SubscriptionGraph';
$graphURI = RdfNamespace::expand($graphIRI);
echo $query;
try {
$this->endpoint->insert($query, $graphURI);
} catch (\EasyRdf\Http\Exception $e) {
echo $e->getBody();
}
}
<?php
use EasyRdf\Sparql\Client as Sparql;
function nomAccess($elem)
{
return $elem->nom->getValue();
}
$app->get('/query', function () use($app) {
$sparql = new Sparql('http://fr.dbpedia.org/sparql');
/**
* Trois critères de recherches :
* - departement
* - nombre d'habitants
* - langue d'affichage
*/
//$departement = "http://fr.dbpedia.org/resource/Savoie_(département)"
$default_langue = 'fr';
$departement = $app->request()->params('dpt');
$nb_habitants = $app->request()->params('pop');
$langue = $app->request()->params('lang');
$order_by = $app->request()->params('order_by');
$order = $app->request()->params('order');
$villes = $sparql->query("\n prefix db-owl: <http://dbpedia.org/ontology/>\n select ?nom, ?population, ?comment where {\n ?ville db-owl:department <{$departement}> .\n ?ville rdf:type db-owl:Settlement .\n ?ville db-owl:populationTotal ?population .\n ?ville rdfs:label ?nom .\n ?ville rdfs:comment ?comment .\n FILTER (?population > {$nb_habitants}) .\n FILTER ( LANGMATCHES(LANG(?nom), \"{$langue}\") ) .\n FILTER ( LANGMATCHES(LANG(?comment), \"{$langue}\") ) .\n }\n order by {$order}(?{$order_by})\n ");
$liste_villes = $sparql->query("\n prefix db-owl: <http://dbpedia.org/ontology/>\n select ?departement, ?nom where {\n ?departement rdf:type dbpedia-owl:Department .\n ?departement dbpedia-owl:region dbpedia-fr:Rhône-Alpes .\n ?departement rdfs:label ?nom .\n FILTER ( LANGMATCHES(LANG(?nom), \"{$default_langue}\") ) .\n }\n order by ?nom\n ");
$langues = ['fr', 'en', 'pl', 'de', 'pt', 'es', 'eu', 'ca', 'it', 'hu', 'id', 'tr', 'nl', 'cs', 'bg', 'ru', 'ja', 'ko'];
$app->render('home', ['isEmpty' => count($villes) <= 0, 'default_form_value' => array('pop_min' => 10, 'dpt_selected' => '', 'lang_selected' => $default_langue, 'order_by' => array('nom' => array('label' => "Nom", 'checked' => true), 'population' => array('label' => "Nombre d'habitants", 'checked' => false)), 'order' => array('ASC' => array('label' => "ASC", 'checked' => true), 'DESC' => array('label' => "DESC", 'checked' => false))), 'selected_filters' => array('dpt' => $departement, 'pop' => $nb_habitants, 'lang' => $langue, 'order_by' => $order_by, 'order' => $order), 'langues' => $langues, 'villes' => array_map(function ($elem) {
return array('nom' => $elem->nom->getValue(), 'population' => $elem->population->getValue(), 'comment' => $elem->comment->getValue());
}, (array) $villes), 'liste_villes' => array_map(function ($elem) {
return array($elem->departement->getUri() => $elem->nom->getValue());
}, (array) $liste_villes)]);
})->name('query');