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<?php
/*
homepage: http://arc.semsol.org/
license: http://arc.semsol.org/license
class: ARC2 RDF Store INSERT Query Handler
author: Benjamin Nowack
version: 2007-09-11 (Fix: empty CONSTRUCT results were not caught, which led to a GET in LOAD
Tweak: INSERT CONSTRUCT will keep bnode ids unchanged)
*/
ARC2::inc('StoreQueryHandler');
class ARC2_StoreInsertQueryHandler extends ARC2_StoreQueryHandler {
function __construct($a = '', &$caller) {/* caller has to be a store */
parent::__construct($a, $caller);
}
function ARC2_StoreInsertQueryHandler($a = '', &$caller) {
$this->__construct($a, $caller);
}
function __init() {/* db_con */
parent::__init();
$this->store =& $this->caller;
}
/* */
function runQuery($infos, $keep_bnode_ids = 0) {
$this->infos = $infos;
$con = $this->store->getDBCon();
/* insert */
if (!$this->v('pattern', array(), $this->infos['query'])) {
return $this->store->insert($this->infos['query']['construct_triples'], $this->infos['query']['target_graph'], $keep_bnode_ids);
}
else {
$keep_bnode_ids = 1;
ARC2::inc('StoreConstructQueryHandler');
$h =& new ARC2_StoreConstructQueryHandler($this->a, $this->store);
if ($sub_r = $h->runQuery($this->infos)) {
return $this->store->insert($sub_r, $this->infos['query']['target_graph'], $keep_bnode_ids);
}
return array('t_count' => 0, 'load_time' => 0);
}
}
/* */
}
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