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PhabricatorCalendarEventFrequencyTransaction.php
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Sat, Jan 25, 21:10

PhabricatorCalendarEventFrequencyTransaction.php
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<?php
final class PhabricatorCalendarEventFrequencyTransaction
extends PhabricatorCalendarEventTransactionType {
const TRANSACTIONTYPE = 'calendar.frequency';
public function generateOldValue($object) {
$rrule = $object->newRecurrenceRule();
if (!$rrule) {
return null;
}
return $rrule->getFrequency();
}
public function applyInternalEffects($object, $value) {
$rrule = id(new PhutilCalendarRecurrenceRule())
->setFrequency($value);
// If the user creates a monthly event on the 29th, 30th or 31st of a
// month, it means "the 30th of every month" as far as the RRULE is
// concerned. Such an event will not occur on months with fewer days.
// This is surprising, and proably not what the user wants. Instead,
// schedule these events relative to the end of the month: on the "-1st",
// "-2nd" or "-3rd" day of the month. For example, a monthly event on
// the 31st of a 31-day month translates to "every month, on the last
// day of the month".
if ($value == PhutilCalendarRecurrenceRule::FREQUENCY_MONTHLY) {
$start_datetime = $object->newStartDateTime();
$y = $start_datetime->getYear();
$m = $start_datetime->getMonth();
$d = $start_datetime->getDay();
if ($d >= 29) {
$year_map = PhutilCalendarRecurrenceRule::getYearMap(
$y,
PhutilCalendarRecurrenceRule::WEEKDAY_MONDAY);
$month_days = $year_map['monthDays'][$m];
$schedule_on = -(($month_days + 1) - $d);
$rrule->setByMonthDay(array($schedule_on));
}
}
$object->setRecurrenceRule($rrule);
}
public function validateTransactions($object, array $xactions) {
$errors = array();
$valid = array(
PhutilCalendarRecurrenceRule::FREQUENCY_DAILY,
PhutilCalendarRecurrenceRule::FREQUENCY_WEEKLY,
PhutilCalendarRecurrenceRule::FREQUENCY_MONTHLY,
PhutilCalendarRecurrenceRule::FREQUENCY_YEARLY,
);
$valid = array_fuse($valid);
foreach ($xactions as $xaction) {
$value = $xaction->getNewValue();
if (!isset($valid[$value])) {
$errors[] = $this->newInvalidError(
pht(
'Event frequency "%s" is not valid. Valid frequences are: %s.',
$value,
implode(', ', $valid)),
$xaction);
}
}
return $errors;
}
public function getTitle() {
$frequency = $this->getFrequency($this->getNewValue());
switch ($frequency) {
case PhutilCalendarRecurrenceRule::FREQUENCY_DAILY:
return pht(
'%s set this event to repeat daily.',
$this->renderAuthor());
case PhutilCalendarRecurrenceRule::FREQUENCY_WEEKLY:
return pht(
'%s set this event to repeat weekly.',
$this->renderAuthor());
case PhutilCalendarRecurrenceRule::FREQUENCY_MONTHLY:
return pht(
'%s set this event to repeat monthly.',
$this->renderAuthor());
case PhutilCalendarRecurrenceRule::FREQUENCY_YEARLY:
return pht(
'%s set this event to repeat yearly.',
$this->renderAuthor());
}
}
public function getTitleForFeed() {
$frequency = $this->getFrequency($this->getNewValue());
switch ($frequency) {
case PhutilCalendarRecurrenceRule::FREQUENCY_DAILY:
return pht(
'%s set %s to repeat daily.',
$this->renderAuthor(),
$this->renderObject());
case PhutilCalendarRecurrenceRule::FREQUENCY_WEEKLY:
return pht(
'%s set %s to repeat weekly.',
$this->renderAuthor(),
$this->renderObject());
case PhutilCalendarRecurrenceRule::FREQUENCY_MONTHLY:
return pht(
'%s set %s to repeat monthly.',
$this->renderAuthor(),
$this->renderObject());
case PhutilCalendarRecurrenceRule::FREQUENCY_YEARLY:
return pht(
'%s set %s to repeat yearly.',
$this->renderAuthor(),
$this->renderObject());
}
}
private function getFrequency($value) {
// NOTE: This is normalizing three generations of these transactions
// to use RRULE constants. It would be vaguely nice to migrate them
// for consistency.
if (is_array($value)) {
$value = idx($value, 'rule');
} else {
$value = $value;
}
return phutil_utf8_strtoupper($value);
}
}

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