function delete($doc, $g = 'http://localhost/')
{
$index = $this->v($g, array(), $this->data);
$this->data[$g] = ARC2::getCleanedIndex($index, $this->toIndex($doc));
}
function getUpdatedIndex($old_index, $q)
{
if (!preg_match('/^\\s*(INSERT|DELETE)\\s*(INTO|FROM)?\\s*(.*)$/is', $q, $m)) {
return 0;
}
$qt = strtolower($m[1]);
$g = $this->getTargetGraph();
/* inject a target graph, if necessary */
if (!$m[2]) {
$q = strtoupper($qt) . ($qt == 'insert' ? ' INTO ' : ' FROM') . ' <' . $g . '> ' . $m[3];
}
/* parse the query */
$this->writeLog($q);
ARC2::inc('SPARQLPlusParser');
$p =& new ARC2_SPARQLPlusParser($this->a, $this);
$p->parse($q);
$infos = $p->getQueryInfos();
/* errors? */
if ($errors = $this->getErrors()) {
$this->setHeader('http', 'HTTP/1.1 400 Bad Request');
$this->setHeader('content-type', 'Content-type: text/plain; charset=utf-8');
$this->result = join("\n", $errors);
return 0;
}
$q_index = ARC2::getSimpleIndex($infos['query']['construct_triples'], 0);
if ($qt == 'insert') {
return ARC2::getMergedIndex($old_index, $q_index);
} elseif ($qt == 'delete') {
return ARC2::getCleanedIndex($old_index, $q_index);
}
}
