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<?php
namespace SMW\ParserFunctions;
use SMW\MessageFormatter;
use SMW\ParserData;
use SMW\ParserParameterProcessor;
use SMW\RecurringEvents;
use SMW\Subobject;
/**
* @private This class should not be instantiated directly, please use
* ParserFunctionFactory::newRecurringEventsParserFunction
*
* Class that provides the {{#set_recurring_event}} parser function
*
* @see http://semantic-mediawiki.org/wiki/Help:Recurring_events
*
* @license GNU GPL v2+
* @since 1.9
*
* @author mwjames
*/
class RecurringEventsParserFunction extends SubobjectParserFunction {
/**
* @var RecurringEvents
*/
private $recurringEvents;
/**
* @since 1.9
*
* @param ParserData $parserData
* @param Subobject $subobject
* @param MessageFormatter $messageFormatter
* @param RecurringEvents $recurringEvents
*/
public function __construct( ParserData $parserData, Subobject $subobject, MessageFormatter $messageFormatter, RecurringEvents $recurringEvents ) {
parent::__construct ( $parserData, $subobject, $messageFormatter );
$this->recurringEvents = $recurringEvents;
}
/**
* @since 1.9
*
* @param ParserParameterProcessor $parameters
*
* @return string|null
*/
public function parse( ParserParameterProcessor $parameters ) {
$this->useFirstElementAsPropertyLabel( true );
$this->recurringEvents->parse(
$parameters->toArray()
);
$this->messageFormatter->addFromArray(
$this->recurringEvents->getErrors()
);
foreach ( $this->recurringEvents->getDates() as $date_str ) {
// Override existing parameters array with the returned
// pre-processed parameters array from recurring events
$parameters->setParameters( $this->recurringEvents->getParameters() );
// Add the date string as individual property / value parameter
$parameters->addParameter(
$this->recurringEvents->getProperty(),
$date_str
);
// @see SubobjectParserFunction::addDataValuesToSubobject
// Each new $parameters set will add an additional subobject
// to the instance
if ( $this->addDataValuesToSubobject( $parameters ) ) {
$this->parserData->getSemanticData()->addSubobject( $this->subobject );
}
// Collect errors that occurred during processing
$this->messageFormatter->addFromArray( $this->subobject->getErrors() );
}
// Update ParserOutput
$this->parserData->pushSemanticDataToParserOutput();
$this->messageFormatter->addFromArray(
$this->parserData->getErrors()
);
return $this->messageFormatter->getHtml();
}
}
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