static function getOutputData( $title, $rid = 0 ) {
// normal page
global $wgTitle, $wgUser;
$wgTitle = $title;
$revision = Revision::newFromTitle( $title, $rid );
if ( $revision === NULL ) {
throw new MWException( __METHOD__ . ": Page not exist '{$page_name} ({$rid})'" );
}
$text = $revision->getText();
$wom = WOMProcessor::parseToWOM( $text );
global $wgOMOutputHookedParserFunctions;
$pfs = $wom->getObjectsByTypeID( WOM_TYPE_PARSERFUNCTION );
foreach ( $pfs as $id => $obj ) {
self::removeSubWOMIds( $obj );
foreach ( $wgOMOutputHookedParserFunctions as $function_key ) {
if ( $obj->getFunctionKey() == $function_key ) {
// add wom id to parser function, with specified parameter 'wom_id'
$param = new WOMParameterModel( 'wom_id' );
$pv = new WOMParamValueModel();
$param->insertObject( $pv );
$pv->insertObject( new WOMTextModel( $id ) );
$obj->insertObject( $param );
}
}
}
// FIXME: template values may have object ids
$tmpls = $wom->getObjectsByTypeID( WOM_TYPE_TEMPLATE );
foreach ( $tmpls as $id => $obj ) {
self::removeSubWOMIds( $obj );
}
global $wgParser, $wgOut, $wgWOMOutputHooked;
$wgWOMOutputHooked = true;
$options = ParserOptions::newFromUser( $wgUser );
self::$queryProps = array();
self::$queryId = 1;
$wgParser->parse( $wom->getWikiText(), $title, $options );
$output = SMWParseData::getSMWdata( $wgParser );
if ( !isset( $output ) ) {
$semdata = smwfGetStore()->getSemanticData( $title );
} else {
$semdata = $output;
}
$tmp_id = 0;
// fill in semantic properties
$properties = array();
foreach ( $semdata->getProperties() as $property ) {
$label = '';
if ( !$property->isShown() ) { // showing this is not desired, hide
continue;
} elseif ( $property->isUserDefined() ) { // user defined property
if ( version_compare ( SMW_VERSION, '1.6', '>=' ) ) {
$label = $property->getLabel();
} else {
$property->setCaption( preg_replace( '/[ ]/u', ' ', $property->getWikiValue(), 2 ) );
// / NOTE: the preg_replace is a slight hack to ensure that the left column does not get too narrow
$label = $property->getWikiValue();
}
} else {
if ( version_compare ( SMW_VERSION, '1.6', '>=' ) ) {
$label = $property->getLabel();
} else {
if ( $property->isVisible() ) { // predefined property
$label = $property->getWikiValue();
} else { // predefined, internal property
continue;
}
}
}
$properties[$label] = array();
$propvalues = $semdata->getPropertyValues( $property );
foreach ( $propvalues as $propvalue ) {
if ( version_compare ( SMW_VERSION, '1.6', '>=' ) ) {
if ( $propvalue->getDIType() == SMWDataItem::TYPE_ERROR ) continue;
$properties[$label][$propvalue->getSerialization()] = false;
} else {
$properties[$label][$propvalue->getWikiValue()] = false;
}
}
}
$props = $wom->getObjectsByTypeID( WOM_TYPE_PROPERTY );
foreach ( $props as $prop ) {
$id = $prop->getObjectID();
if ( $id == '' ) continue;
$name = $prop->getPropertyName();
$value = $prop->getPropertyValue();
if ( !isset( $properties[$name][$value] ) ) {
// remove category not match to output
$wom->removePageObject( $id );
} else {
$properties[$name][$value] = true;
}
}
foreach ( $properties as $name => $values ) {
foreach ( $values as $val => $flag ) {
if ( $flag !== true ) {
$p = new WOMPropertyModel( $name, $val );
$p->setObjectID( 'output' . ( $tmp_id ++ ) );
$wom->insertObject( $p );
$wom->addToPageObjectSet( $p );
}
}
}
// fill in ask query results
foreach ( self::$queryProps as $wom_id => $queries ) {
$query_res = new WOMQueryResult();
if ( $wom_id != '' ) {
$parent = $wom->getObject( $wom_id );
} else {
$parent = new WOMParserFunctionModel( 'ask' );
$parent->setObjectID( 'output' . ( $tmp_id ++ ) );
$wom->insertObject( $parent );
$wom->addToPageObjectSet( $parent );
}
$parent->insertObject( $query_res );
$query_res->setObjectID( 'output' . ( $tmp_id ++ ) );
$wom->addToPageObjectSet( $query_res );
foreach ( $queries as $label => $vals ) {
$vals = array_unique( $vals );
foreach ( $vals as $val ) {
$query_res->insertObject( new WOMPropertyModel( $label, $val ) );
}
}
}
// fill in categories
$categories = $title->getParentCategories();
$cates = $wom->getObjectsByTypeID( WOM_TYPE_CATEGORY );
foreach ( $cates as $cate ) {
$id = $cate->getObjectID();
if ( $id == '' ) continue;
$name = Title::newFromText( $cate->getName(), NS_CATEGORY )->getFullText();
if ( !isset( $categories[$name] ) ) {
// remove category not match to output
$wom->removePageObject( $id );
} else {
$categories[$name] = true;
}
}
foreach ( $categories as $cate => $flag ) {
if ( $flag !== true ) {
$c = new WOMCategoryModel( Title::newFromText( $cate )->getText() );
$c->setObjectID( 'output' . ( $tmp_id ++ ) );
$wom->insertObject( $c );
$wom->addToPageObjectSet( $c );
}
}
return $wom;
}
public function execute()
{
global $wgUser;
$params = $this->extractRequestParams();
if (is_null($params['title'])) {
$this->dieUsage('Must specify page title', 0);
}
if (is_null($params['xpath'])) {
$this->dieUsage('Must specify xpath', 1);
}
$page_name = $params['title'];
$xpath = $params['xpath'];
$type = $params['type'];
$rid = $params['rid'];
$articleTitle = Title::newFromText($page_name);
if (!$articleTitle) {
$this->dieUsage("Can't create title object ({$page_name})", 2);
}
$article = new Article($articleTitle);
if (!$article->exists()) {
$this->dieUsage("Article doesn't exist ({$page_name})", 3);
}
$page_obj = WOMOutputProcessor::getOutputData($articleTitle, $rid);
try {
$objs = WOMProcessor::getObjIdByXPath2($page_obj, $xpath);
} catch (Exception $e) {
$err = $e->getMessage();
}
$result = array();
if (isset($err)) {
$result = array('result' => 'Failure', 'message' => array());
$this->getResult()->setContent($result['message'], $err);
} else {
$result['result'] = 'Success';
// pay attention to special xml tag, e.g., <property><value>...</value></property>
$result['return'] = array();
if ($type == 'count') {
$count = 0;
foreach ($objs as $id) {
if ($id == '') {
continue;
}
++$count;
}
$this->getResult()->setContent($result['return'], $count);
} else {
$xml = '';
foreach ($objs as $id) {
if ($id == '') {
continue;
}
$wobj = $page_obj->getObject($id);
$result['return'][$id] = array();
if ($type == 'xml') {
$xml .= "<{$id} xml:space=\"preserve\">{$wobj->toXML()}</{$id}>";
} else {
$this->getResult()->setContent($result['return'][$id], $wobj->getWikiText());
}
}
if ($type == 'xml') {
header("Content-Type: application/rdf+xml");
echo <<<OUTPUT
<?xml version="1.0" encoding="UTF-8" ?>
<api><womoutput result="Success"><return>
{$xml}
</return></womoutput></api>
OUTPUT;
exit(1);
}
}
}
$this->getResult()->addValue(null, $this->getModuleName(), $result);
}
