/**
* Cast a string value into a qCal_DateTime_Period object
*/
protected function doCast($value)
{
$parts = explode("/", $value);
if (count($parts) !== 2) {
throw new qCal_DateTime_Exception_InvalidPeriod("A period must contain a start date and either an end date, or a duration of time.");
}
$start = qCal_DateTime::factory($parts[0]);
try {
$end = qCal_DateTime::factory($parts[1]);
} catch (qCal_DateTime_Exception $e) {
// @todo This should probably be a more specific exception
// invalid date, so try duration
// @todo: I might want to create a qCal_Date object to represent a duration (not tied to any points in time)
// using a qCal_Value object here is sort of inconsistent. Plus, I can see value in having that functionality
// within the qCal_Date subcomponent
// also, there is a difference in a period and a duration in that if you say start on feb 26 and end on march 2
// that will be a different "duration" depending on the year. that goes for months with alternate amounts of days too
$duration = new qCal_DateTime_Duration($parts[1]);
$end = qCal_DateTime::factory($start->getUnixTimestamp() + $duration->getSeconds());
// @todo This needs to be updated once qCal_DateTime accepts timestamps
}
return new qCal_DateTime_Period($start, $end);
}
/**
* Test that duration data is handled right
*/
public function testRawDuration()
{
$value = new qCal_Value_Duration('P1W3DT2H3M45S');
$this->assertEqual($value->getValue(), qCal_DateTime_Duration::factory('P1W3DT2H3M45S'));
// this is how many seconds are in the duration
}
/**
* Convert to internal representation
*/
protected function doCast($value)
{
return qCal_DateTime_Duration::factory($value);
}
