static function validate_recurrence_rule_data(&$simple, &$errors)
{
// If no recurrence is enabled, just return NULL
if (!isset($simple['enable'])) {
return NULL;
}
// Otherwise, create the recurrence rule.
$recur = new CalendarRecurRule();
// Interval
if (isset($simple['interval'])) {
$interval = $simple['interval'];
if (is_numeric($interval)) {
$recur->SetInterval((int) $interval);
} else {
$errors[] = array('field' => 'interval', 'text' => "Non-numeric interval: {$interval}");
}
}
// Frequency dependent
if (isset($simple['freq'])) {
switch ($simple['freq']) {
case 'daily':
$recur->SetFrequency('daily');
break;
case 'weekly':
$recur->SetFrequency('weekly');
if (isset($simple['weekly_byday']) && is_array($simple['weekly_byday'])) {
foreach ($simple['weekly_byday'] as $day => $dummy) {
if (is_numeric($day) && $day >= 0 && $day < 7) {
$recur->SetByDay($day);
}
}
}
break;
case 'monthly':
$recur->SetFrequency('monthly');
if (isset($simple['monthly_method'])) {
switch ($simple['monthly_method']) {
case 'monthday':
if (isset($simple['monthly_monthday']) && is_array($simple['monthly_monthday'])) {
$monthday =& $simple['monthly_monthday'];
$monthday_fail = false;
if (!isset($monthday['monthday']) || !is_numeric($monthday['monthday'])) {
$monthday_fail = true;
$errors[] = array('field' => 'monthly_monthday', 'text' => 'Invalid monthly day.');
} elseif ($monthday['monthday'] < -31 || $monthday['monthday'] > 31 || !$monthday['monthday']) {
$monthday_fail = true;
$errors[] = array('field' => 'monthly_monthday', 'text' => 'Monthly day out of range');
}
if (!$monthday_fail) {
$recur->SetByMonthDay((int) $monthday['monthday']);
}
}
break;
case 'weekday':
if (isset($simple['monthly_weekday']) && is_array($simple['monthly_weekday'])) {
$weekday =& $simple['monthly_weekday'];
$weekday_fail = false;
if (!isset($weekday['day'])) {
$weekday_fail = true;
$errors[] = array('field' => 'monthly_weekday', 'text' => 'Invalid monthly day.');
} else {
$days_split = split(',', $weekday['day']);
$monthly_weekday_days = array();
foreach ($days_split as $day) {
if (!is_numeric($day) || $day < 0 || $day > 6) {
$weekday_fail = true;
} else {
$monthly_weekday_days[] = (int) $day;
}
}
if ($weekday_fail) {
$errors[] = array('field' => 'monthly_weekday', 'text' => 'Monthly day(s) out of range');
}
}
if (!isset($weekday['week']) || !is_numeric($weekday['week'])) {
$weekday_fail = true;
$errors[] = array('field' => 'monthly_weekday', 'text' => 'Invalid monthly week.');
} elseif ($weekday['week'] < -5 || $weekday['week'] > 5 || !$weekday['week']) {
$weekday_fail = true;
$errors[] = array('field' => 'monthly_weekday', 'text' => 'Monthly week out of range');
}
if (!$weekday_fail) {
if (count($monthly_weekday_days) == 1) {
$recur->SetByDay($monthly_weekday_days[0], (int) $weekday['week']);
} else {
foreach ($monthly_weekday_days as $day) {
$recur->SetByDay($day);
}
$recur->SetBySetPos((int) $weekday['week']);
}
}
}
break;
}
}
break;
case 'yearly':
$recur->SetFrequency('yearly');
if (isset($simple['yearly_method'])) {
switch ($simple['yearly_method']) {
case 'monthday':
if (isset($simple['yearly_monthday']) && is_array($simple['yearly_monthday'])) {
$monthday =& $simple['yearly_monthday'];
$monthday_fail = false;
if (!isset($monthday['monthday']) || !is_numeric($monthday['monthday'])) {
$monthday_fail = true;
$errors[] = array('field' => 'yearly_monthday', 'text' => 'Invalid yearly day.');
} elseif ($monthday['monthday'] < -31 || $monthday['monthday'] > 31 || !$monthday['monthday']) {
$monthday_fail = true;
$errors[] = array('field' => 'yearly_monthday', 'text' => 'yearly day out of range');
}
if (!isset($monthday['month']) || !is_numeric($monthday['month'])) {
$monthday_fail = true;
$errors[] = array('field' => 'yearly_monthday', 'text' => 'Invalid yearly month.');
} elseif ($monthday['month'] < 1 || $monthday['month'] > 12) {
$monthday_fail = true;
$errors[] = array('field' => 'yearly_monthday', 'text' => 'yearly month out of range');
}
if (!$monthday_fail) {
$recur->SetByMonthDay((int) $monthday['monthday']);
$recur->SetByMonth((int) $monthday['month']);
}
}
break;
case 'weekday':
if (isset($simple['yearly_weekday']) && is_array($simple['yearly_weekday'])) {
$weekday =& $simple['yearly_weekday'];
$weekday_fail = false;
if (!isset($weekday['week']) || !is_numeric($weekday['week'])) {
$weekday_fail = true;
$errors[] = array('field' => 'yearly_weekday', 'text' => 'Invalid yearly week.');
} elseif ($weekday['week'] < -5 || $weekday['week'] > 5 || !$weekday['week']) {
$weekday_fail = true;
$errors[] = array('field' => 'yearly_weekday', 'text' => 'yearly week out of range');
}
if (!isset($weekday['day']) || !is_numeric($weekday['day'])) {
$weekday_fail = true;
$errors[] = array('field' => 'yearly_weekday', 'text' => 'Invalid yearly day.');
} elseif ($weekday['day'] < 0 || $weekday['day'] > 6) {
$weekday_fail = true;
$errors[] = array('field' => 'yearly_weekday', 'text' => 'yearly day out of range');
}
if (!isset($weekday['month']) || !is_numeric($weekday['month'])) {
$weekday_fail = true;
$errors[] = array('field' => 'yearly_monthday', 'text' => 'Invalid yearly month.');
} elseif ($weekday['month'] < 1 || $weekday['month'] > 12) {
$weekday_fail = true;
$errors[] = array('field' => 'yearly_monthday', 'text' => 'yearly month out of range');
}
if (!$weekday_fail) {
// use monthly with bymonth and byday
/// @note jh559: using monthly frequency here doesn't work coz yearly interval would be wrong
// $recur->SetFrequency('monthly');
// $recur->SetByMonth((int)$weekday['month']);
// $recur->SetByDay((int)$weekday['day'], (int)$weekday['week']);
// use yearly with bymonth and bysetpos
$recur->SetByDay((int) $weekday['day'], (int) $weekday['week']);
$recur->SetByMonth((int) $weekday['month']);
//$recur->SetBySetpos((int)$weekday['week']);
}
}
break;
case 'yearday':
if (isset($simple['yearly_yearday']) && is_array($simple['yearly_yearday'])) {
$yearday =& $simple['yearly_yearday'];
if (!isset($yearday['yearday']) || !is_numeric($yearday['yearday'])) {
$errors[] = array('field' => 'yearly_yearday', 'text' => 'Invalid yearly day of year.');
} elseif ($yearday['yearday'] < -365 || $yearday['yearday'] > 365 || !$yearday['yearday']) {
$errors[] = array('field' => 'yearly_weekday', 'text' => 'yearly day of year out of range');
} else {
$recur->SetByYearday((int) $yearday['yearday']);
}
}
break;
}
}
break;
default:
$errors[] = array('field' => 'freq', 'text' => 'Unrecognised frequency');
break;
}
} else {
$errors[] = array('text' => 'Recurrence frequency missing');
}
// Range
if (isset($simple['range_method'])) {
switch ($simple['range_method']) {
case 'count':
if (isset($simple['count']) && is_numeric($simple['count'])) {
if ($simple['count'] > 0) {
$recur->SetCount((int) $simple['count']);
} else {
$recur->SetCount(1);
$errors[] = array('field' => 'count', 'text' => 'Occurrence count should be positive and non-zero');
}
} else {
$recur->SetCount(10);
$errors[] = array('field' => 'count', 'text' => 'Non-numeric occurrence count');
}
break;
case 'until':
if (isset($simple['until']) && is_array($simple['until'])) {
$until =& $simple['until'];
$until_fail = false;
if (!isset($until['year']) || !is_numeric($until['year'])) {
$until_fail = true;
$errors[] = array('field' => 'until', 'text' => 'Invalid until year');
} elseif ($until['year'] < 2000 || $until['year'] > 2100) {
$until_fail = true;
$errors[] = array('field' => 'until', 'text' => 'Until year out of range');
}
if (!isset($until['month']) || !is_numeric($until['month'])) {
$until_fail = true;
$errors[] = array('field' => 'until', 'text' => 'Invalid until month');
} elseif ($until['month'] < 1 || $until['month'] > 12) {
$until_fail = true;
$errors[] = array('field' => 'until', 'text' => 'Until month out of range');
}
if (!isset($until['monthday']) || !is_numeric($until['monthday'])) {
$until_fail = true;
$errors[] = array('field' => 'until', 'text' => 'Invalid until day of month');
} elseif ($until['monthday'] < 1 || $until['monthday'] > 31) {
$until_fail = true;
$errors[] = array('field' => 'until', 'text' => 'Year out of range');
}
if (!$until_fail) {
$until_date = mktime(23, 59, 59, (int) $until['month'], (int) $until['monthday'], (int) $until['year']);
$recur->SetUntil($until_date);
}
} else {
$errors[] = array('field' => 'until', 'text' => 'Invalid until date');
}
break;
}
}
return $recur;
}
