/**
* Get the frequency date increment
*
* @param Configuration $configuration
*
* @return string
*/
protected function getFrequencyIncrement(Configuration $configuration)
{
$interval = $configuration->getCounterInterval() <= 1 ? 1 : $configuration->getCounterInterval();
switch ($configuration->getFrequency()) {
case Configuration::FREQUENCY_DAILY:
$intervalValue = '+' . $interval . ' days';
break;
case Configuration::FREQUENCY_WEEKLY:
$intervalValue = '+' . $interval . ' weeks';
break;
case Configuration::FREQUENCY_MONTHLY:
if ($configuration->getRecurrence() !== Configuration::RECURRENCE_NONE) {
return false;
}
$intervalValue = '+' . $interval . ' months';
break;
case Configuration::FREQUENCY_YEARLY:
if ($configuration->getRecurrence() !== Configuration::RECURRENCE_NONE) {
return false;
}
$intervalValue = '+' . $interval . ' years';
break;
default:
$intervalValue = false;
}
return $intervalValue;
}
