/**
* get all repeating events/bookings?
* TODO: change function name, in a distinct view bookings are events too
* use constants for repeat ids (better readable)
*
* Maybe rewrite function:
* look at php date objects like DatePeriod, DateInterval:
* $period = new DatePeriod($start, $interval, $recurrences);
* foreach ($period as $date) {
* echo $date->format('Y-m-d')."\n";
* }
* you can use dates like "first tuesday of july 2008", "next Monday 2012-04-01"
* http://de1.php.net/manual/de/datetime.formats.relative.php
*
* @param object $r
* @param int $_from; default: -1, days to add to fromDate
* @param int $_to; default: 1, days to add to fromDate
* @return
*/
function getAllDatesWithRepeats($r, $_from = -1, $_to = 1, $fromDate = null)
{
// $dates later will contain all date occurence.
$dates = array();
// $max prevents an endless loop on erors
$max = 999;
if ($fromDate == null) {
$fromDate = new DateTime();
} else {
$fromDate = new DateTime($fromDate->format('d.m.Y'));
}
$to = new DateTime($fromDate->format('d.m.Y H:i'));
$fromDate->modify("+{$_from} days");
$to->modify("+{$_to} days");
$r->startdate = new DateTime($r->startdate instanceof DateTime ? $r->startdate->format('d.m.Y H:i') : $r->startdate);
$d = clone $r->startdate;
$r->enddate = new DateTime($r->enddate instanceof DateTime ? $r->enddate->format('d.m.Y H:i') : $r->enddate);
$e = clone $r->enddate;
if (!isset($r->repeat_until)) {
$r->repeat_until = $d->format("d.m.Y H:i");
}
$repeat_until = new DateTime($r->repeat_until);
$repeat_until = $repeat_until->modify('+1 day');
// include given day!
if ($to < $repeat_until) {
$repeat_until = $to;
}
if (!empty($r->additions)) {
$additions = $r->additions;
} else {
$additions = array();
}
// Add addition date for Start date, so we only need one foreach loop
$my = new stdClass();
$my->add_date = $d->format('d.m.Y H:i');
$my->with_repeat_yn = 1;
$additions[0] = $my;
// array_unshift($additions, $my);
// print_r($additions);
foreach ($additions as $key => $add_unkownFormat) {
$add = (object) $add_unkownFormat;
// Parameter can be Arrays from HTTP Input or Objects from DB
$d = new DateTime(substr($add->add_date, 0, 10) . " " . $d->format('H:i:s'));
$e = new DateTime(substr($add->add_date, 0, 10) . " " . $e->format('H:i:s'));
// Mark exception as used, so datesInConflict() will be called only for new exceptions to save time!
if (!empty($r->exceptions)) {
foreach ($r->exceptions as $key => $exc) {
if (is_array($r->exceptions[$key])) {
$r->exceptions[$key] = (object) $r->exceptions[$key];
}
$r->exceptions[$key]->used = false;
}
}
do {
$exception = false;
if (!empty($r->exceptions)) {
foreach ($r->exceptions as $exc) {
// if exception is not used proof conflict with exception date
if (!$exception && !$exc->used && datesInConflict(new DateTime($exc->except_date_start), new DateTime($exc->except_date_end), $d, $e)) {
$exception = true;
$exc->used = true;
}
}
}
if (!$exception) {
//why two ifs?
if ($d <= $fromDate && $e >= $fromDate || $e >= $fromDate && $e <= $to) {
$dates[] = new DateTime($d->format('Y-m-d H:i:s'));
}
}
// f.e. each second week is 7*2 => 14 days
if ($r->repeat_id == 1 || $r->repeat_id == 7) {
$repeat = $r->repeat_id * $r->repeat_frequence;
$d->modify("+{$repeat} days");
$e->modify("+{$repeat} days");
} else {
if ($r->repeat_id == 31) {
$counter = 0;
do {
$tester = new DateTime($d->format('Y-m-d H:i:s'));
$modify = "+ " . ($counter + 1 * $r->repeat_frequence) . " month";
$tester->modify($modify);
if ($tester->format('d') == $d->format('d')) {
$d->modify($modify);
$e->modify($modify);
$counter = 999;
//TODO: why not using break here?
}
$counter = $counter + 1;
} while ($counter < 99);
} else {
if ($r->repeat_id == 32) {
// first find last weekday
if ($r->repeat_option_id == 6) {
// go some days back, so we dont jump into the next month and therefor miss one month
$d->modify("- 5 days");
$e->modify("- 5 days");
// add months
$d->modify("+ " . (1 + 1 * $r->repeat_frequence) . " month");
// what means 1 + 1 * x?
$e->modify("+ " . (1 + 1 * $r->repeat_frequence) . " month");
// first go back to first day of month
//TODO: use sort of $d->setDate(2014, 12, 1) and calculate value for $e?;
while ($d->format('d') > 1) {
$d->modify("-1 day");
$e->modify("-1 day");
}
$d->modify("-1 day");
$e->modify("-1 day");
// then search for same weekday
while ($d->format('N') != $r->startdate->format('N')) {
$d->modify("-1 day");
$e->modify("-1 day");
}
} else {
$counter = 0;
// add months
$d->setDate($d->format('Y'), $d->format('m') + 1 * $r->repeat_frequence, 0);
$e->setDate($e->format('Y'), $e->format('m') + 1 * $r->repeat_frequence, 0);
while ($counter < $r->repeat_option_id) {
$m = $d->format("m");
$d->modify("+1 day");
$e->modify("+1 day");
// test if jumped in next month, then the month has to few days and the event is dropped, f.e. on 5th
// weekday/month
if ($d->format("m") != $m) {
$counter = 0;
}
if ($d->format("N") == $r->startdate->format("N")) {
$counter = $counter + 1;
}
}
}
} else {
if ($r->repeat_id == 365) {
$counter = 0;
$d->modify("+ " . ($counter + 1 * $r->repeat_frequence) . " year");
$e->modify("+ " . ($counter + 1 * $r->repeat_frequence) . " year");
}
}
}
}
$max = $max - 1;
if ($max == 0) {
addErrorMessage("Zu viele Wiederholungen in getAllDatesWithRepeats! [{$r->id}]");
return false;
}
} while ($d < $repeat_until && $add->with_repeat_yn == 1 && isset($r->repeat_id) && $r->repeat_id > 0 && isset($r->repeat_frequence) && $r->repeat_frequence > 0);
}
return $dates;
}
function getAllDatesWithRepeats($r, $_von = -1, $_bis = 1)
{
// $dates later will contain all date occurence.
$dates = array();
// $max prevents an endless loop on erors
$max = 999;
$from = new DateTime();
$from->modify("+{$_von} days");
$to = new DateTime();
$to->modify("+{$_bis} days");
$d = new DateTime($r->startdate->format('d.m.Y H:i'));
$e = new DateTime($r->enddate->format('d.m.Y H:i'));
$repeat_until = new DateTime($r->repeat_until);
$repeat_until = $repeat_until->modify('+1 day');
// Da der Tag ja mit gelten soll!
if ($to < $repeat_until) {
$repeat_until = $to;
}
if (isset($r->additions)) {
$additions = $r->additions;
} else {
$additions = array();
}
$my = new stdClass();
$my->add_date = $d->format('d.m.Y H:i');
$my->with_repeat_yn = 1;
$additions[0] = $my;
//array_unshift($additions, $my);
foreach ($additions as $key => $add) {
$d = new DateTime(substr($add->add_date, 0, 10) . " " . $d->format('H:i:s'));
$e = new DateTime(substr($add->add_date, 0, 10) . " " . $e->format('H:i:s'));
// Mark exception as used, so the "datesInConflict" will be called only for fresh exceptions to save time!
if (isset($r->exceptions)) {
foreach ($r->exceptions as $exc) {
$exc->used = false;
}
}
do {
$exception = false;
if (isset($r->exceptions)) {
foreach ($r->exceptions as $exc) {
// if exception is not used then proof conflict with exception date
if (!$exception && !$exc->used && datesInConflict(new DateTime($exc->except_date_start), new DateTime($exc->except_date_end), $d, $e)) {
$exception = true;
$exc->used = true;
}
}
}
if (!$exception) {
if ($d <= $from && $e >= $from || $e >= $from && $e <= $to) {
$dates[] = new DateTime($d->format('Y-m-d H:i:s'));
}
}
if ($r->repeat_id == 1 || $r->repeat_id == 7) {
$repeat = $r->repeat_id * $r->repeat_frequence;
// f.e. each second week is 7*2 => 14 days
$d->modify("+{$repeat} days");
$e->modify("+{$repeat} days");
} else {
if ($r->repeat_id == 31) {
$counter = 0;
do {
$tester = new DateTime($d->format('Y-m-d H:i:s'));
$tester->modify("+ " . ($counter + 1 * $r->repeat_frequence) . " month");
if ($tester->format('d') == $d->format('d')) {
$d->modify("+ " . ($counter + 1 * $r->repeat_frequence) . " month");
$e->modify("+ " . ($counter + 1 * $r->repeat_frequence) . " month");
$counter = 999;
}
$counter = $counter + 1;
} while ($counter < 99);
} else {
if ($r->repeat_id == 32) {
// first find last weekday
if ($r->repeat_option_id == 6) {
// go some days back, so we dont jump into the next month and therefor miss one month
$d->modify("- 5 days");
$e->modify("- 5 days");
// add months
$d->modify("+ " . (1 + 1 * $r->repeat_frequence) . " month");
$e->modify("+ " . (1 + 1 * $r->repeat_frequence) . " month");
// first go back to first day of month
while ($d->format('d') > 1) {
$d->modify("-1 day");
$e->modify("-1 day");
}
$d->modify("-1 day");
$e->modify("-1 day");
// then search for same weekday
while ($d->format('N') != $r->startdate->format('N')) {
$d->modify("-1 day");
$e->modify("-1 day");
}
} else {
$counter = 0;
// add months
$d->setDate($d->format('Y'), $d->format('m') + 1 * $r->repeat_frequence, 0);
$e->setDate($e->format('Y'), $e->format('m') + 1 * $r->repeat_frequence, 0);
while ($counter < $r->repeat_option_id) {
$m = $d->format("m");
$d->modify("+1 day");
$e->modify("+1 day");
// test if jumped in next month, then the month has to few days and the event is dropped, f.e. on 5th weekday/month
if ($d->format("m") != $m) {
$counter = 0;
}
if ($d->format("N") == $r->startdate->format("N")) {
$counter = $counter + 1;
}
}
}
} else {
if ($r->repeat_id == 365) {
$counter = 0;
$d->modify("+ " . ($counter + 1 * $r->repeat_frequence) . " year");
$e->modify("+ " . ($counter + 1 * $r->repeat_frequence) . " year");
}
}
}
}
$max = $max - 1;
if ($max == 0) {
addErrorMessage("Zu viele Wiederholungen in getAllDatesWithRepeats! [{$r->id}]");
return false;
}
} while ($d < $repeat_until && $add->with_repeat_yn == 1 && isset($r->repeat_id) && $r->repeat_id > 0 && isset($r->repeat_frequence) && $r->repeat_frequence > 0);
}
return $dates;
}
