/**
* Builds the SPARQL query
*/
private function _buildQueries()
{
$query = new Erfurt_Sparql_Query2();
$uri = new Erfurt_Sparql_Query2_IriRef($this->_uri);
$predVar = new Erfurt_Sparql_Query2_Var('predicate');
$objVar = new Erfurt_Sparql_Query2_Var('object');
$query->addTriple($uri, $predVar, $objVar);
$query->addFilter(new Erfurt_Sparql_Query2_UnaryExpressionNot(new Erfurt_Sparql_Query2_isBlank($objVar)));
if (!empty($this->_ignoredPredicates)) {
$or = new Erfurt_Sparql_Query2_ConditionalAndExpression();
$filter = new Erfurt_Sparql_Query2_Filter($or);
foreach ($this->_ignoredPredicates as $ignored) {
$or->addElement(new Erfurt_Sparql_Query2_UnaryExpressionNot(new Erfurt_Sparql_Query2_sameTerm($predVar, new Erfurt_Sparql_Query2_IriRef($ignored))));
}
$query->getWhere()->addElement($filter);
}
$query->setDistinct(true)->addProjectionVar($predVar)->addProjectionVar($objVar)->getOrder()->add($predVar);
$queries = array();
$closure = Erfurt_App::getInstance()->getStore()->getImportsClosure($this->_model->getModelUri(), true);
$queryGraphs = array_merge(array($this->_graph), $closure);
foreach ($queryGraphs as $currentGraph) {
$query->setFroms(array($currentGraph));
$queries[$currentGraph] = clone $query;
}
return $queries;
}
/**
*
* Enter description here ...
*
* @param $uri string to convert to nice uri
* @param $titleHelper TitleHelper instance to use to get titles for URIs
*/
private function generateUriFromSparql($uri, $titleHelper)
{
$schema = $this->loadNamingSchema($uri);
$properties = array();
foreach ($schema as $element) {
if (is_string($this->_config->property->{$element})) {
$properties[$this->_config->property->{$element}] = array('element' => $element, 'rank' => '1');
} elseif (is_array($this->_config->property->{$element}->toArray())) {
$countDeep = 0;
foreach ($this->_config->property->{$element}->toArray() as $elementDeep) {
$properties[(string) $elementDeep] = array('element' => $element, 'rank' => $countDeep++);
}
}
}
$query = new Erfurt_Sparql_Query2();
$sRef = new Erfurt_Sparql_Query2_IriRef($uri);
$pVar = new Erfurt_Sparql_Query2_Var('p');
$oVar = new Erfurt_Sparql_Query2_Var('o');
$query->addProjectionVar($pVar);
$query->addProjectionVar($oVar);
$query->addTriple($sRef, $pVar, $oVar);
$query->addFrom((string) $this->_model);
$query->setLimit(100);
$query->setDistinct(true);
$container = new Erfurt_Sparql_Query2_ConditionalOrExpression();
foreach ($properties as $filterProp => $element) {
$sameTerm = new Erfurt_Sparql_Query2_sameTerm($pVar, new Erfurt_Sparql_Query2_IriRef($filterProp));
//$filter = new Erfurt_Sparql_Query2_Filter($sameTerm);
$container->addElement($sameTerm);
}
$query->addFilter($container);
$result = $this->_owApp->erfurt->getStore()->sparqlQuery($query, array('withImports' => true));
$replacements = array();
foreach ($result as $row) {
if (array_key_exists($row['p'], $properties)) {
$titleHelper->addResource($row['p']);
if (Erfurt_Uri::check($row['o'])) {
$titleHelper->addResource($row['o']);
}
if (array_key_exists($properties[$row['p']]['element'], $replacements)) {
$newRank = (int) $properties[$row['p']]['rank'];
$minRank = $replacements[$properties[$row['p']]['element']]['rank'];
if ($newRank < $minRank) {
$replacements[$properties[$row['p']]['element']] = array('rank' => $newRank, 'value' => $row['o'], 'key' => $row['p']);
}
} else {
$replacements[$properties[$row['p']]['element']] = array('rank' => $properties[$row['p']]['rank'], 'value' => $row['o'], 'key' => $row['p']);
}
}
}
$localName = '';
foreach ($schema as $element) {
if (array_key_exists($element, $replacements)) {
if (Erfurt_Uri::check($replacements[$element]['value'])) {
$val = $titleHelper->getTitle($replacements[$element]['value']);
} else {
$val = $replacements[$element]['value'];
}
$val = $this->convertChars($val);
$key = $this->convertChars($titleHelper->getTitle($replacements[$element]['key']));
$localName .= $key . '/' . $val . '/';
}
}
// no meaningful localname created falback to old uri (TODO or md5 a new one?)
if ($localName === '') {
return $uri;
//$localName = 'resource/' . md5($uri . time());
}
$base = '';
if ($this->_model !== null && $this->_model->getBaseIri() !== '') {
$base = $this->_model->getBaseIri();
if ($base[strlen($base) - 1] !== '#' && $base[strlen($base) - 1] !== '/') {
$base .= '/';
}
} else {
$count = 0;
foreach (explode('/', $uri) as $element) {
if ($count > 2) {
break;
} else {
$count++;
$base .= $element . '/';
}
}
}
return $base . $localName;
}
/**
* Opens a resource context in data markup.
*
* Options (all are optional):
* - resource - resource URI (by default, the current resource in template)
* - type - resource type (by default, rdf:type value for the specified resource)
* - rel - relation to the resource, string or array of strings
* - rev - reverse relation (from the resource), string or array of strings
* - itemref - microdata's itemref as an array of IDs
* - tag - HTML tag to create context with
* - id - HTML id attribute
* - class - HTML class attribute
* - markup - markup format ("RDFa", "microdata", false)
*
* The following options may be specified in template options:
* rel, rev, itemref, tag, id, class
*/
public function openContext($options = array())
{
$model = OntoWiki::getInstance()->selectedModel;
$tmplOpt = $this->view->templateOptions();
$markup = $tmplOpt->getValue('http://ns.ontowiki.net/SysOnt/Site/dataMarkupFormat', 'RDFa');
$markup = isset($options['markup']) ? $options['markup'] : $markup;
$resource = isset($options['resource']) ? $options['resource'] : $this->view->resourceUri;
$html = array();
$attr = '';
$iprefix = '';
$type = null;
$rel = array();
$rev = array();
$itemref = null;
// can generate new namespaces which weren't included in html element
//$resource = $this->view->curie($resource);
if (isset($options['type'])) {
$type = $options['type'];
} else {
$query = new Erfurt_Sparql_Query2();
$query->addProjectionVar($type = new Erfurt_Sparql_Query2_Var('type'));
$query->addTriple(new Erfurt_Sparql_Query2_IriRef($resource), new Erfurt_Sparql_Query2_IriRef(EF_RDF_TYPE), $type);
if ($types = $model->sparqlQuery($query)) {
$type = $types[0]['type'];
}
}
if (isset($options['rel'])) {
$rel = $options['rel'];
} elseif (isset($this->view->rel)) {
$rel = $this->view->rel;
}
if (!is_array($rel)) {
$rel = array($rel);
}
if (isset($options['rev'])) {
$rev = $options['rev'];
} elseif (isset($this->view->rev)) {
$rev = $this->view->rev;
}
if (!is_array($rev)) {
$rev = array($rev);
}
if (isset($options['itemref'])) {
$itemref = $options['itemref'];
} elseif (isset($this->view->itemref)) {
$itemref = $this->view->itemref;
}
foreach (array('id', 'class') as $name) {
if (isset($options[$name])) {
$html[$name] = $options[$name];
} elseif (isset($this->view->{$name})) {
$html[$name] = $this->view->{$name};
}
}
switch ($markup) {
case 'RDFa':
$attr .= ' resource="' . $resource . '"';
if ($type !== null) {
$attr .= ' typeof="' . $type . '"';
}
if ($rel) {
$attr .= ' rel="' . implode(' ', $rel) . '"';
}
if ($rev) {
$attr .= ' rev="' . implode(' ', $rev) . '"';
}
break;
case 'microdata':
/* some parsers (Google) don't merge properties
from multiple elements for the same resource */
if (isset(static::$_itemref[$resource])) {
$flag = true;
if (!isset($html['id'])) {
//throw new OntoWiki_Exception('Attempting to create additional element for the same resource without itemref link (no itemref).');
$flag = false;
} elseif (!in_array($html['id'], static::$_itemref[$resource])) {
//throw new OntoWiki_Exception('Attempting to create additional element for the same resource without itemref link (ID not listed in itemref).');
$flag = false;
}
if ($flag) {
break;
}
}
$attr .= ' itemscope="itemscope"';
/* "The itemid attribute must not be specified on elements
that do not have both an itemscope attribute
and an itemtype attribute specified" */
if ($type !== null) {
$attr .= sprintf(' itemid="%s" itemtype="%s"', $resource, $type);
}
if ($rel) {
$attr .= sprintf(' itemprop="%s"', implode(' ', $rel));
}
//if ($rev) $iprefix = sprintf('<link itemprop="%s" href="#TODO"/>%s', implode(' ', $rev), $iprefix);
if ($itemref) {
$attr .= sprintf(' itemref="%s"', implode(' ', $itemref));
/* remember which elements are linked using itemref
so context markup can be disabled for them later */
static::$_itemref[$resource] = $itemref;
} else {
static::$_itemref[$resource] = array();
}
break;
}
foreach ($html as $name => $value) {
$attr .= ' ' . $name . '="' . $value . '"';
}
if (!isset($options['tag'])) {
if (!isset($this->view->tag)) {
$this->view->tag = 'span';
}
$tag = $this->view->tag;
} else {
$tag = $options['tag'];
}
// stack information for closecontext
if (!isset($this->view->dataMarkupContextStack)) {
$this->view->dataMarkupContextStack = array();
}
array_push($this->view->dataMarkupContextStack, array('tag' => $tag));
return "<{$tag}{$attr}>{$iprefix}";
}
public function querylist($query, $template, $templateOptions = array(), $options = array())
{
$owapp = OntoWiki::getInstance();
$store = $owapp->erfurt->getStore();
$model = $owapp->selectedModel;
$prefix = isset($options['prefix']) ? $options['prefix'] : '';
$suffix = isset($options['suffix']) ? $options['suffix'] : '';
$delimiter = isset($options['delimiter']) ? $options['delimiter'] : '';
$property = isset($options['property']) ? $options['property'] : '';
if ($this->_titleHelper == null) {
$this->_titleHelper = new OntoWiki_Model_TitleHelper($model);
}
if ($property !== '') {
// construct query to retrieve specified property of the current resource
$query = new Erfurt_Sparql_Query2();
$resourceUriVar = new Erfurt_Sparql_Query2_Var('resourceUri');
$query->addProjectionVar($resourceUriVar);
$query->addTriple(new Erfurt_Sparql_Query2_IriRef($this->view->resourceUri), new Erfurt_Sparql_Query2_IriRef($property), $resourceUriVar);
}
try {
$result = $model->sparqlQuery($query);
} catch (Exception $e) {
// executions failed (return nothing)
return $e->getMessage();
}
// pre-fill the title helper
foreach ($result as $row) {
foreach ($row as $value) {
if (Erfurt_Uri::check($value)) {
$this->_titleHelper->addResource($value);
}
}
}
/*
* If the ordering doesn't work using the 'ORDER BY' clause you should add ASC() around the
* variable which should by sorted. E.g. "… } ORDER BY ASC(?start) ASC(?end)"
*/
if (!stristr($query, 'ORDER BY')) {
// sort results by resource title
usort($result, array('Site_View_Helper_Querylist', '_cmpTitles'));
}
$return = '';
$count = count($result);
$current = 0;
$odd = true;
foreach ($result as $row) {
// shift status vars
$current++;
$odd = !$odd;
// prepare a first / last hint for the template
$listhint = $current == 1 ? 'first' : null;
$listhint = $current == $count ? 'last' : $listhint;
$row['listhint'] = $listhint;
// prepare other template vars
$row['oddclass'] = $odd ? 'odd' : 'even';
$row['rowcount'] = $count;
$row['current'] = $current;
if (!Erfurt_Uri::check($row['resourceUri'])) {
$row['title'] = $row['resourceUri'];
} else {
$row['title'] = $this->_titleHelper->getTitle($row['resourceUri']);
}
$row = array_merge($row, $templateOptions);
// render the template
$return .= $prefix . $this->view->partial($template, $row) . $suffix;
if ($current < $count) {
$return .= $delimiter;
}
}
return $return;
}
