/**
* {@inheritdoc}
*/
public function increment(DateTime $date, $invert = false)
{
$year = $date->format('Y');
if ($invert) {
$month = $date->format('m') - 1;
if ($month < 1) {
$month = 12;
$year--;
}
$date->setDate($year, $month, 1);
$date->setDate($year, $month, DayOfMonthField::getLastDayOfMonth($date));
$date->setTime(23, 59, 0);
} else {
$month = $date->format('m') + 1;
if ($month > 12) {
$month = 1;
$year++;
}
$date->setDate($year, $month, 1);
$date->setTime(0, 0, 0);
}
return $this;
}
/**
* {@inheritdoc}
*/
public function isSatisfiedBy(DateTime $date, $value)
{
if ($value == '?') {
return true;
}
// Convert text day of the week values to integers
$value = strtr($value, array(
'SUN' => 0,
'MON' => 1,
'TUE' => 2,
'WED' => 3,
'THU' => 4,
'FRI' => 5,
'SAT' => 6
));
$currentYear = $date->format('Y');
$currentMonth = $date->format('m');
$lastDayOfMonth = DayOfMonthField::getLastDayOfMonth($date);
// Find out if this is the last specific weekday of the month
if (strpos($value, 'L')) {
$weekday = str_replace('7', '0', substr($value, 0, strpos($value, 'L')));
$tdate = clone $date;
$tdate->setDate($currentYear, $currentMonth, $lastDayOfMonth);
while ($tdate->format('w') != $weekday) {
$tdate->setDate($currentYear, $currentMonth, --$lastDayOfMonth);
}
return $date->format('j') == $lastDayOfMonth;
}
// Handle # hash tokens
if (strpos($value, '#')) {
list($weekday, $nth) = explode('#', $value);
// Validate the hash fields
if ($weekday < 1 || $weekday > 5) {
throw new InvalidArgumentException("Weekday must be a value between 1 and 5. {$weekday} given");
}
if ($nth > 5) {
throw new InvalidArgumentException('There are never more than 5 of a given weekday in a month');
}
// The current weekday must match the targeted weekday to proceed
if ($date->format('N') != $weekday) {
return false;
}
$tdate = clone $date;
$tdate->setDate($currentYear, $currentMonth, 1);
$dayCount = 0;
$currentDay = 1;
while ($currentDay < $lastDayOfMonth + 1) {
if ($tdate->format('N') == $weekday) {
if (++$dayCount >= $nth) {
break;
}
}
$tdate->setDate($currentYear, $currentMonth, ++$currentDay);
}
return $date->format('j') == $currentDay;
}
// Handle day of the week values
if (strpos($value, '-')) {
$parts = explode('-', $value);
if ($parts[0] == '7') {
$parts[0] = '0';
} else if ($parts[1] == '0') {
$parts[1] = '7';
}
$value = implode('-', $parts);
}
// Test to see which Sunday to use -- 0 == 7 == Sunday
$format = in_array(7, str_split($value)) ? 'N' : 'w';
$fieldValue = $date->format($format);
return $this->isSatisfied($fieldValue, $value);
}