/**
* Translate data from rdf mapping to rdf nodes
*
* @return array
*/
protected function getRdfFromData()
{
$rdfNodes = array();
$rdfMapping = $this->getRdfMapping();
foreach ($this->data as $docField => $docValue) {
$fieldName = explode('@', $docField);
$fieldName = $fieldName[0];
if (strpos($docField, '@') !== false && in_array($fieldName, $rdfMapping['languageFields'])) {
$rdfNodes = array_merge($rdfNodes, OpenSKOS_Rdf_Parser::createLanguageField($docField, $docValue));
} else {
if (in_array($docField, $rdfMapping['resourceFields'])) {
$rdfNodes = array_merge($rdfNodes, OpenSKOS_Rdf_Parser::createResourceField($docField, $docValue));
} else {
if (in_array($docField, $rdfMapping['dctermsDateFields'])) {
if ($docField == 'dcterms_dateAccepted' && (empty($docValue) || empty($docValue[0]))) {
continue;
}
$rdfNodes = array_merge($rdfNodes, OpenSKOS_Rdf_Parser::createDcTermsField($docField, $docValue));
} else {
if (in_array($docField, $rdfMapping['simpleSkosFields'])) {
$rdfNodes = array_merge($rdfNodes, OpenSKOS_Rdf_Parser::createSimpleSkosField($docField, $docValue));
} else {
if (in_array($docField, $rdfMapping['openskosFields'])) {
$rdfNodes = array_merge($rdfNodes, OpenSKOS_Rdf_Parser::createSimpleOpenskosField($docField, $docValue));
}
}
}
}
}
}
return $rdfNodes;
}
