/**
* generate single date objects for one cycle and one semester, existing dates are merged in
*
* @param string cycle id
* @param int timestamp of semester start
* @param int timestamp of semester end
* @param int alternative timestamp to start from
* @param int correction calculation, if the semester does not start on monday (number of days?)
* @return array returns an array of two arrays of SingleDate objects: 'dates' => all new and surviving dates, 'dates_to_delete' => obsolete dates
*/
function getVirtualSingleDatesForSemester($metadate_id, $sem_begin, $sem_end, $startAfterTimeStamp, $corr)
{
$dates = array();
$dates_to_delete = array();
// loads the singledates of the by metadate_id denoted regular time-entry into the object
$this->readSingleDates($metadate_id);
// The currently existing singledates for the by metadate_id denoted regular time-entry
$existingSingleDates =& $this->cycles[$metadate_id]->getSingleDates();
$start_woche = $this->cycles[$metadate_id]->week_offset;
$end_woche = $this->cycles[$metadate_id]->end_offset;
$turnus = $this->cycles[$metadate_id]->cycle;
// HolidayData is used to decide wether a date is during a holiday an should be created as an ex_termin.
// Additionally, it is used to show which type of holiday we've got.
$holiday = new HolidayData();
// This variable is used to check if a given singledate shall be created in a bi-weekly seminar.
if ($start_woche == -1) {
$start_woche = 0;
}
$week = 0;
// get the first presence date after sem_begin
$day_of_week = date('l', strtotime('Sunday + ' . $this->cycles[$metadate_id]->day . ' days'));
$stamp = strtotime('this ' . $day_of_week, $sem_begin);
if ($end_woche) {
$end_woche -= 1;
if ($end_woche < 0) {
$end_woche = 0;
}
$sem_end = strtotime(sprintf('+%u weeks %s', $end_woche, strftime('%d.%m.%Y', $stamp)));
}
$start_time = mktime((int) $this->cycles[$metadate_id]->start_stunde, (int) $this->cycles[$metadate_id]->start_minute, 0, date("n", $stamp), date("j", $stamp), date("Y", $stamp));
// Year
$end_time = mktime((int) $this->cycles[$metadate_id]->end_stunde, (int) $this->cycles[$metadate_id]->end_minute, 0, date("n", $stamp), date("j", $stamp), date("Y", $stamp));
// Year
// loop through all possible singledates for this regular time-entry
do {
// if dateExists is true, the singledate will not be created. Default is of course to create the singledate
$dateExists = false;
// do not create singledates, if they are earlier then the chosen start-week
if ($start_woche > $week) {
$dateExists = true;
}
// bi-weekly check
if ($turnus > 0 && $week - $start_woche > 0 && ($week - $start_woche) % ($turnus + 1)) {
$dateExists = true;
}
/*
* We only create dates, which do not already exist, so we do not overwrite existing dates.
*
* Additionally, we delete singledates which are not needed any more (bi-weekly, changed start-week, etc.)
*/
foreach ($existingSingleDates as $key => $val) {
// take only the singledate into account, that maps the current timepoint
if ($start_time > $startAfterTimeStamp && $val->date == $start_time && $val->end_time == $end_time) {
// bi-weekly check
if ($turnus > 0 && $week - $start_woche > 0 && ($week - $start_woche) % ($turnus + 1)) {
$dates_to_delete[$key] = $val;
unset($existingSingleDates[$key]);
}
// delete singledates if they are earlier than the chosen start-week
if ($start_woche > $week) {
$dates_to_delete[$key] = $val;
unset($existingSingleDates[$key]);
}
$dateExists = true;
if (isset($existingSingleDates[$key])) {
$dates[$key] = $val;
}
}
}
if ($start_time < $startAfterTimeStamp) {
$dateExists = true;
}
if (!$dateExists) {
$termin = new SingleDate(array('seminar_id' => $this->seminar_id));
$all_holiday = $holiday->getAllHolidays();
// fetch all Holidays
foreach ($all_holiday as $val2) {
if ($val2["beginn"] <= $start_time && $start_time <= $val2["ende"]) {
$termin->setExTermin(true);
}
}
//check for calculatable holidays
if (!$termin->isExTermin()) {
$holy_type = holiday($start_time);
if ($holy_type["col"] == 3) {
$termin->setExTermin(true);
}
}
// fill the singleDate-Object with data
$termin->setMetaDateID($metadate_id);
$termin->setTime($start_time, $end_time);
$termin->setDateType(1);
//best guess
$dates[$termin->getTerminID()] = $termin;
}
//inc the week, create timestamps for the next singledate
$start_time = strtotime('+1 week', $start_time);
$end_time = strtotime('+1 week', $end_time);
$week++;
} while ($end_time < $sem_end);
foreach ($existingSingleDates as $id => $val) {
foreach (array_keys($dates) as $date) {
if ($date != $id) {
$dates_to_delete[$id] = $val;
unset($existingSingleDates[$id]);
}
}
}
return array('dates' => $dates, 'dates_to_delete' => $dates_to_delete);
}
function isHoliday()
{
foreach (HolidayData::GetAllHolidaysArray() as $val) {
if ($val['beginn'] <= $this->date && $val['ende'] >= $this->end_time) {
$name = $val['name'];
}
}
if (!$name) {
$holy_type = holiday($this->date);
$name = $holy_type['name'];
}
if ($name) {
return $name;
} else {
return false;
}
}
/**
* generate single date objects for one cycle and one semester, existing dates are merged in
*
* @param string cycle id
* @param int timestamp of semester start
* @param int timestamp of semester end
* @param int alternative timestamp to start from
* @param int correction calculation, if the semester does not start on monday (number of days?)
* @return array returns an array of two arrays of SingleDate objects: 'dates' => all new and surviving dates, 'dates_to_delete' => obsolete dates
*/
public function createSemesterTerminSlots($sem_begin, $sem_end, $startAfterTimeStamp, $corr)
{
$dates = array();
$dates_to_delete = array();
// The currently existing singledates for the by metadate_id denoted regular time-entry
//$existingSingleDates =& $this->cycles[$metadate_id]->getSingleDates();
$existingSingleDates =& $this->getAllDates();
$start_woche = $this->week_offset;
$end_woche = $this->end_offset;
$turnus = $this->cycle;
// HolidayData is used to decide wether a date is during a holiday an should be created as an ex_termin.
// Additionally, it is used to show which type of holiday we've got.
$holiday = new HolidayData();
// This variable is used to check if a given singledate shall be created in a bi-weekly seminar.
if ($start_woche == -1) {
$start_woche = 0;
}
$week = 0;
// get the first presence date after sem_begin
$day_of_week = date('l', strtotime('Sunday + ' . $this->weekday . ' days'));
$stamp = strtotime('this ' . $day_of_week, $sem_begin);
if ($end_woche) {
$end_woche -= 1;
if ($end_woche < 0) {
$end_woche = 0;
}
$sem_end = strtotime(sprintf('+%u weeks %s', $end_woche, strftime('%d.%m.%Y', $stamp)));
}
$start = explode(':', $this->start_time);
$start_time = mktime((int) $start[0], (int) $start[1], 0, date("n", $stamp), date("j", $stamp), date("Y", $stamp));
// Year
$end = explode(':', $this->end_time);
$end_time = mktime((int) $end[0], (int) $end[1], 0, date("n", $stamp), date("j", $stamp), date("Y", $stamp));
// Year
// loop through all possible singledates for this regular time-entry
do {
// if dateExists is true, the singledate will not be created. Default is of course to create the singledate
$dateExists = false;
// do not create singledates, if they are earlier then the chosen start-week
if ($start_woche > $week) {
$dateExists = true;
}
// bi-weekly check
if ($turnus > 0 && $week - $start_woche > 0 && ($week - $start_woche) % ($turnus + 1)) {
$dateExists = true;
}
/*
* We only create dates, which do not already exist, so we do not overwrite existing dates.
*
* Additionally, we delete singledates which are not needed any more (bi-weekly, changed start-week, etc.)
*/
$date_values['range_id'] = $this->seminar_id;
$date_values['autor_id'] = $GLOBALS['user']->id;
$date_values['metadate_id'] = $this->metadate_id;
foreach ($existingSingleDates as $key => $val) {
// take only the singledate into account, that maps the current timepoint
if ($start_time > $startAfterTimeStamp && $val->date == $start_time && $val->end_time == $end_time) {
// bi-weekly check
if ($turnus > 0 && $week - $start_woche > 0 && ($week - $start_woche) % ($turnus + 1)) {
$dates_to_delete[$key] = $val;
unset($existingSingleDates[$key]);
}
// delete singledates if they are earlier than the chosen start-week
if ($start_woche > $week) {
$dates_to_delete[$key] = $val;
unset($existingSingleDates[$key]);
}
$dateExists = true;
if (isset($existingSingleDates[$key])) {
$dates[$key] = $val;
}
}
}
if ($start_time < $startAfterTimeStamp) {
$dateExists = true;
}
if (!$dateExists) {
$termin = new CourseDate();
$all_holiday = $holiday->getAllHolidays();
// fetch all Holidays
foreach ($all_holiday as $val2) {
if ($val2["beginn"] <= $start_time && $start_time <= $val2["ende"]) {
$termin = new CourseExDate();
break;
}
}
//check for calculatable holidays
if ($termin instanceof CourseDate) {
$holy_type = SemesterHoliday::isHoliday($start_time, false);
if ($holy_type["col"] == 3) {
$termin = new CourseExDate();
}
}
$date_values['date'] = $start_time;
$date_values['end_time'] = $end_time;
$date_values['date_type'] = 1;
$termin->setData($date_values);
$dates[] = $termin;
}
//inc the week, create timestamps for the next singledate
$start_time = strtotime('+1 week', $start_time);
$end_time = strtotime('+1 week', $end_time);
$week++;
} while ($end_time < $sem_end);
return array('dates' => $dates, 'dates_to_delete' => $dates_to_delete);
}
