/**
* Constructs a FiscalYear for the previous year from this instances start.
* @return FiscalYear A new instance of FiscalYear
*/
public function createPreviousFiscalYear()
{
// create new dates
$dateEnd = clone $this->dateEnd;
$dateEnd->modify('-1 year');
$dateStart = clone $this->dateStart;
$dateStart->modify('-1 year');
// create fiscal year and set start & end
$fiscalYear = new FiscalYear();
$fiscalYear->setDateEnd($dateEnd);
$fiscalYear->setDateStart($dateStart);
// return new FiscalYear
return $fiscalYear;
}
