/**
* Take a structured meta-data statement and transform it into a
* plain text value that can be displayed to the end-user.
*
* @param $property MetadataProperty
* @param $value mixed
* @return string
*/
function _getStringValueFromMetadataStatement(&$property, &$value)
{
if ($property->getCardinality() == METADATA_PROPERTY_CARDINALITY_MANY && !empty($value)) {
$allowedTypes = $property->getAllowedTypes();
if (isset($allowedTypes[METADATA_PROPERTY_TYPE_COMPOSITE])) {
// We currently only can transform composite
// name arrays to strings.
$allowedAssocTypes = $allowedTypes[METADATA_PROPERTY_TYPE_COMPOSITE];
assert(in_array(ASSOC_TYPE_AUTHOR, $allowedAssocTypes) || in_array(ASSOC_TYPE_EDITOR, $allowedAssocTypes));
import('lib.pkp.plugins.metadata.nlm30.filter.Nlm30NameSchemaPersonStringFilter');
$personStringFilter = new Nlm30NameSchemaPersonStringFilter(PERSON_STRING_FILTER_MULTIPLE);
assert($personStringFilter->supportsAsInput($value));
$stringValue = $personStringFilter->execute($value);
} else {
// We currently can't transform properties of
// cardinality "many" to strings.
assert(is_array($value) && count($value) <= 1);
$stringValue = $value[0];
}
} else {
$stringValue = (string) $value;
}
return $stringValue;
}