/**
* singleton
*/
public static function getInstance()
{
if (is_null(self::$instance)) {
self::$instance = new self();
}
return self::$instance;
}
/**
* this function detects parameter sets that are no longer referred and
* web services that are no longer used in this article
*
* @param string $articleId
*
* @return boolean true
*/
public static function detectRemovedWebServiceUsages($articleId)
{
global $wgsmwRememberedWSUsages, $purgePage;
$purgePage = false;
$rememberedWSUsages = $wgsmwRememberedWSUsages;
if ($rememberedWSUsages != null) {
foreach ($rememberedWSUsages as $rememberedWSUsage) {
WSStorage::getDatabase()->addWSArticle($rememberedWSUsage[0], $rememberedWSUsage[1], $articleId);
}
}
$oldWSUsages = WSStorage::getDatabase()->getWSsUsedInArticle($articleId);
foreach ($oldWSUsages as $oldWSUsage) {
$remove = true;
if ($rememberedWSUsages != null) {
foreach ($rememberedWSUsages as $rememberedWSUsage) {
if ($rememberedWSUsage[0] == $oldWSUsage[0] && $rememberedWSUsage[1] == $oldWSUsage[1]) {
$remove = false;
}
}
}
if ($remove) {
WSStorage::getDatabase()->removeWSArticle($oldWSUsage[0], $oldWSUsage[1], $articleId);
WebServiceCache::removeWSParameterPair($oldWSUsage[0], $oldWSUsage[1]);
$parameterSetIds = WSStorage::getDatabase()->getUsedParameterSetIds($oldWSUsage[1]);
if (sizeof($parameterSetIds) == 0) {
WSStorage::getDatabase()->removeParameterSet($oldWSUsage[1]);
}
}
}
$wgsmwRememberedWSUsages = array();
//deal with triplifying
global $wgsmwRememberedWSTriplifications;
if (!is_array($wgsmwRememberedWSTriplifications)) {
$wgsmwRememberedWSTriplifications = array();
}
foreach ($oldWSUsages as $oldWSUsage) {
if (!array_key_exists($oldWSUsage[0], $wgsmwRememberedWSTriplifications)) {
WSTriplifier::getInstance()->removeWSUsage($oldWSUsage[0], $articleId);
}
}
$wgsmwRememberedWSTriplifications = array();
//eof deal with triplification
return true;
}
public static function articleDeleteHook(&$article, &$user, $reason)
{
if ($article->getTitle()->getNamespace() != SMW_NS_WEB_SERVICE) {
return true;
}
$ws = WebService::newFromID($article->getID());
if ($ws) {
//triplification processing
global $smwgDIIP;
require_once $smwgDIIP . "/specials/WebServices/SMW_WSTriplifier.php";
//deal with triplification
$articles = WSStorage::getDatabase()->getWSArticles($article->getID(), new SMWRequestOptions());
WSTriplifier::getInstance()->removeWS($article->getID(), $articles);
WebServiceCache::removeWS($ws->getArticleID());
$options = new SMWRequestOptions();
$pageIds = WSStorage::getDatabase()->getWSArticles($ws->getArticleID(), $options);
foreach ($pageIds as $articleId) {
$usedWSs = WSStorage::getDatabase()->getWSsUsedInArticle($articleId);
foreach ($usedWSs as $usedWS) {
if ($usedWS[0] == $ws->getArticleID()) {
WSStorage::getDatabase()->removeWSArticle($ws->getArticleID(), $usedWS[1], $articleId);
$parameterSetIds = WSStorage::getDatabase()->getUsedParameterSetIds($usedWS[1]);
if (sizeof($parameterSetIds) == 0) {
WSStorage::getDatabase()->removeParameterSet($usedWS[1]);
}
}
}
}
$ws->removeFromDB();
}
self::$mNewWebService = null;
self::$mOldWebservice = null;
return true;
}
