/**
* Create a new object starting from midnight
*
* @param object DateAndTime $aDateAndTime
* @param object Duration $aDuration
* @param optional string $class DO NOT USE OUTSIDE OF PACKAGE.
* This parameter is used to get around the limitations of not being
* able to find the class of the object that recieved the initial
* method call.
* @return object Year
* @access public
* @since 5/5/05
* @static
*/
static function startingDuration($aDateAndTime, $aDuration, $class = 'Year')
{
// Validate our passed class name.
if (!(strtolower($class) == strtolower('Year') || is_subclass_of(new $class(), 'Year'))) {
die("Class, '{$class}', is not a subclass of 'Year'.");
}
$asDateAndTime = $aDateAndTime->asDateAndTime();
$midnight = $asDateAndTime->atMidnight();
$year = new $class();
$year->setStart($midnight);
$year->setDuration(Duration::withDays(Year::getDaysInYear($midnight->year())));
return $year;
}
