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+<?php
+
+
+//Do not remove! This is still needed for the toString method!
+require_once 'lib/dates.inc.php';
+
+
+/**
+ * SeminarCycleDate.php
+ * model class for table seminar_cycle_dates
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * @author André Noack <noack@data-quest.de>
+ * @license http://www.gnu.org/licenses/gpl-2.0.html GPL version 2
+ * @category Stud.IP
+ * @since 2.0
+ *
+ * @property string $id alias column for metadate_id
+ * @property string $metadate_id database column
+ * @property string $seminar_id database column
+ * @property string $start_time database column
+ * @property string $end_time database column
+ * @property int $weekday database column
+ * @property string $description database column
+ * @property float $sws database column
+ * @property int $cycle database column
+ * @property int $week_offset database column
+ * @property int|null $end_offset database column
+ * @property int $sorter database column
+ * @property int $mkdate database column
+ * @property int $chdate database column
+ * @property SimpleORMapCollection|RoomRequest[] $room_requests has_many RoomRequest
+ * @property SimpleORMapCollection|CourseDate[] $dates has_many CourseDate
+ * @property SimpleORMapCollection|CourseExDate[] $exdates has_many CourseExDate
+ * @property Course $course belongs_to Course
+ * @property mixed $start_hour additional field
+ * @property mixed $start_minute additional field
+ * @property mixed $end_hour additional field
+ * @property mixed $end_minute additional field
+ * @property-read mixed $is_visible additional field
+ */
+class SeminarCycleDate extends SimpleORMap
+{
+ /**
+ * Configures this model.
+ *
+ * @param Array $config Configuration array
+ */
+ protected static function configure($config = [])
+ {
+ $config['db_table'] = 'seminar_cycle_dates';
+ $config['belongs_to']['course'] = array(
+ 'class_name' => Course::class,
+ 'foreign_key' => 'seminar_id',
+ );
+ $config['has_many']['room_requests'] = [
+ 'class_name' => RoomRequest::class,
+ 'on_store' => 'store',
+ 'on_delete' => 'delete',
+ 'assoc_func' => 'findByMetadate_id'
+ ];
+ $config['has_many']['dates'] = [
+ 'class_name' => CourseDate::class,
+ 'on_delete' => 'delete',
+ 'on_store' => 'store',
+ 'order_by' => 'ORDER BY date'
+ ];
+
+ $config['has_many']['exdates'] = [
+ 'class_name' => CourseExDate::class,
+ 'on_delete' => 'delete',
+ 'on_store' => 'store',
+ 'order_by' => 'ORDER BY date'
+ ];
+
+ $config['additional_fields']['start_hour'] = ['get' => 'getTimeFraction', 'set' => 'setTimeFraction'];
+ $config['additional_fields']['start_minute'] = ['get' => 'getTimeFraction', 'set' => 'setTimeFraction'];
+ $config['additional_fields']['end_hour'] = ['get' => 'getTimeFraction', 'set' => 'setTimeFraction'];
+ $config['additional_fields']['end_minute'] = ['get' => 'getTimeFraction', 'set' => 'setTimeFraction'];
+ $config['additional_fields']['is_visible'] = ['get' => 'getIsVisible'];
+ parent::configure($config);
+ }
+
+ /**
+ * returns array of instances of SeminarCycleDates of the given seminar_id
+ *
+ * @param string seminar_id: selected seminar to search for SeminarCycleDates
+ * @return array of instances of SeminarCycleDates of the given seminar_id or
+ * an empty array
+ */
+ public static function findBySeminar($seminar_id)
+ {
+ return self::findBySeminar_id($seminar_id, "ORDER BY sorter ASC, weekday ASC, start_time ASC");
+ }
+
+ /**
+ * return instance of SeminarCycleDates of given termin_id
+ *
+ * @param string termin_id: selected seminar to search for SeminarCycleDates
+ * @return array
+ */
+ public static function findByTermin($termin_id)
+ {
+ return self::findOneBySql("metadate_id=(SELECT metadate_id FROM termine WHERE termin_id = ? "
+ . "UNION SELECT metadate_id FROM ex_termine WHERE termin_id = ? )", [$termin_id, $termin_id]);
+ }
+ /**
+ * Returns the time fraction for a given field.
+ *
+ * @param String $field Time fraction field
+ * @return int the time fraction
+ */
+ protected function getTimeFraction($field)
+ {
+ if (in_array($field, ['start_hour', 'start_minute'])) {
+ list($start_hour, $start_minute) = explode(':', $this->start_time);
+ return (int)$$field;
+ }
+ if (in_array($field, ['end_hour', 'end_minute'])) {
+ list($end_hour, $end_minute) = explode(':', $this->end_time);
+ return (int)$$field;
+ }
+
+ throw new InvalidArgumentException("Invalid field {$field}");
+ }
+
+ /**
+ * Sets the time fraction for a given field.
+ *
+ * @param String $field Time fraction field
+ * @param mixed $value Time fraction value as string or int
+ * @return String containing the time fraction
+ */
+ protected function setTimeFraction($field, $value)
+ {
+ if ($field == 'start_hour') {
+ $this->start_time = sprintf('%02u:%02u:00', $value, $this->start_minute);
+ return $this->start_hour;
+ }
+ if ($field == 'start_minute') {
+ $this->start_time = sprintf('%02u:%02u:00', $this->start_hour, $value);
+ return $this->start_minute;
+ }
+ if ($field == 'end_hour') {
+ $this->end_time = sprintf('%02u:%02u:00', $value, $this->end_minute);
+ return $this->end_hour;
+ }
+ if ($field == 'end_minute') {
+ $this->end_time = sprintf('%02u:%02u:00', $this->end_hour, $value);
+ return $this->end_minute;
+ }
+
+ throw new InvalidArgumentException("Invalid field {$field}");
+ }
+
+ /**
+ * Check if there is a least one not cancelled date for this cycle data
+ *
+ * @return bool true, if there is at least one not cancelled date
+ */
+ public function getIsVisible()
+ {
+ return sizeof($this->dates) ? true : false;
+ }
+
+ /**
+ * SWS needs special setter to always store a decimal
+ *
+ * @param number $value
+ */
+ protected function setSws($value)
+ {
+ $this->content['sws'] = round(str_replace(',', '.', $value), 1);
+ }
+
+ /**
+ * returns a string for a date like '3. 9:00s - 10:45' (short and long)
+ * or '3. 9:00s - 10:45, , ab der 7. Semesterwoche, (Vorlesung)' with the week of the semester
+ * @param format string: "short"|"long"|"full"
+ * @return formatted string
+ */
+ public function toString($format = 'short')
+ {
+ $template['short'] = '%s. %02s:%02s - %02s:%02s';
+ $template['long'] = '%s: %02s:%02s - %02s:%02s, %s';
+ $template['full'] = '%s: %02s:%02s - %02s:%02s, ' . _('%s, ab der %s. Semesterwoche');
+ if ($this->end_offset) {
+ $template['full'] .= ' bis zur %s. Semesterwoche';
+ } else {
+ $template['full'] .= '%s';
+ }
+ $template['full'] .= '%s';
+ $cycles = [_('wöchentlich'), _('zweiwöchentlich'), _('dreiwöchentlich')];
+ $day = getWeekDay($this->weekday, $format == 'short');
+ $result = sprintf($template[$format],
+ $day,
+ $this->start_hour,
+ $this->start_minute,
+ $this->end_hour,
+ $this->end_minute,
+ $cycles[(int)$this->cycle],
+ $this->week_offset + 1,
+ $this->end_offset ? $this->end_offset: '',
+ $this->description ? ' (' . $this->description . ')' : '');
+ return $result;
+ }
+
+ /**
+ * returns an sorted array with all dates and exdates for the cycledate entry
+ * @return array of instances of dates or exdates
+ */
+ public function getAllDates()
+ {
+ $dates = [];
+ foreach ($this->exdates as $date) {
+ $dates[] = $date;
+ }
+ foreach ($this->dates as $date) {
+ $dates[] = $date;
+ }
+
+ usort($dates, function ($a, $b) {
+ return $a->date - $b->date;
+ });
+
+ return $dates;
+ }
+
+ /**
+ * Deletes the cycle.
+ *
+ * @return int number of affected rows
+ */
+ public function delete()
+ {
+ $cycle_info = $this->toString();
+ $seminar_id = $this->seminar_id;
+ $metadate_id = $this->metadate_id;
+ $result = parent::delete();
+
+ if ($result) {
+ $stmt = DBManager::get()->prepare('DELETE FROM schedule_seminare WHERE metadate_id = :metadate_id');
+ $stmt->execute(['metadate_id' => $metadate_id]);
+
+ StudipLog::log('SEM_DELETE_CYCLE', $seminar_id, null, $cycle_info);
+ }
+
+ return $result;
+ }
+
+ /**
+ * Set date-type for all dates
+ * @param $type
+ * @return int
+ */
+ public function setSingleDateType($type)
+ {
+ $result = 0;
+ if (count($this->dates)) {
+ foreach($this->dates as $date) {
+ $date->date_typ = $type;
+ $result += $date->store();
+ }
+ }
+ return $result;
+ }
+
+ /**
+ * Stores this cycle.
+ * @return int number of changed rows
+ */
+ public function store()
+ {
+ //create new entry in seminare_cycle_date
+ if ($this->isNew()) {
+ $result = parent::store();
+ if ($result) {
+ $course = Course::find($this->seminar_id);
+ //create start timestamp
+ $new_dates = $this->createTerminSlots($this->calculateTimestamp(
+ $course->start_semester->vorles_beginn,
+ $this->week_offset*7
+ ));
+
+ if (!empty($new_dates)) {
+ foreach ($new_dates as $semester_dates) {
+ foreach ($semester_dates['dates'] as $date) {
+ $result += $date->store();
+ }
+ }
+ } else {
+ $this->delete();
+ return 0;
+ }
+ $this->resetRelation("dates");
+ StudipLog::log('SEM_ADD_CYCLE', $this->seminar_id, NULL, $this->toString());
+ return $result;
+ }
+ return 0;
+ }
+
+ //change existing cycledate, changes also corresponding single dates
+ $old_cycle = SeminarCycleDate::find($this->metadate_id);
+ if (!parent::store()) {
+ return false;
+ }
+
+ if ($this->start_time != $old_cycle->start_time
+ || $this->end_time != $old_cycle->end_time
+ || $old_cycle->weekday != $this->weekday )
+ {
+ $update_count = $this->updateExistingDates($old_cycle);
+ }
+
+ if ($old_cycle->week_offset != $this->week_offset
+ || $old_cycle->end_offset != $this->end_offset
+ || $old_cycle->cycle != $this->cycle )
+ {
+ $update_count = $this->generateNewDates();
+ }
+
+ StudipLog::log('SEM_CHANGE_CYCLE', $this->seminar_id, NULL,
+ $old_cycle->toString() .' -> ' . $this->toString());
+
+ return $update_count;
+ }
+
+ private function updateExistingDates($old_cycle)
+ {
+ $update_count = 0;
+ foreach ($this->getAllDates() as $date) {
+ // ignore dates in the past
+ if ($date->date < time()) {
+ continue;
+ }
+
+ $tos = $date->date;
+ $toe = $date->end_time;
+ $day = $this->weekday - $old_cycle->weekday;
+
+ $date->date = mktime(date('G', strtotime($this->start_time)), date('i', strtotime($this->start_time)), 0, date('m', $tos), date('d', $tos), date('Y', $tos)) + $day * 24 * 60 * 60;
+ $date->end_time = mktime(date('G', strtotime($this->end_time)), date('i', strtotime($this->end_time)), 0, date('m', $toe), date('d', $toe), date('Y', $toe)) + $day * 24 * 60 * 60;
+
+ if ($date instanceof CourseDate && !is_null($date->room_booking)) {
+ //Check if the time range of the date has decreased and did not exceed the
+ //boundaries of the existing room booking. In that case, the room booking is shortened.
+ if ($date->date < $tos || $date->end_time > $toe) {
+ //The room booking must be deleted.
+ $date->room_booking->delete();
+ } else {
+ //The room booking must be shortened.
+ $date->room_booking->begin = $date->date;
+ $date->room_booking->end = $date->end_time;
+ $date->room_booking->store();
+ }
+ }
+
+ if ($old_cycle->weekday != $this->weekday) {
+ $all_holiday = SemesterHoliday::getAll(); // fetch all Holidays
+ $holiday_date = false;
+ foreach ($all_holiday as $val2) {
+ if (($val2["beginn"] <= $date->date) && ($date->date <= $val2["ende"])) {
+ $holiday_date = true;
+ break;
+ }
+ }
+
+ //check for calculatable holidays
+ if ($date instanceof CourseDate || $date instanceof CourseExDate) {
+ $holy_type = SemesterHoliday::isHoliday($date->date, false);
+ if ($holy_type["col"] == 3) {
+ $holiday_date = true;
+ }
+ }
+
+ if ($holiday_date && $date instanceof CourseDate) {
+ $date->cancelDate();
+ } else if (!$holiday_date && $date instanceof CourseExDate) {
+ $date->unCancelDate();
+ } else if ($date->isDirty()) {
+ $date->store();
+ $update_count++;
+ }
+ } else if ($date->isDirty()) {
+ $date->store();
+ $update_count++;
+ }
+ }
+ $this->resetRelation('dates');
+ $this->resetRelation('exdates');
+ return $update_count;
+ }
+
+ /**
+ * Generate any currently missing single dates for this cycle.
+ */
+ public function generateNewDates()
+ {
+ $course = Course::find($this->seminar_id);
+ $topics = [];
+ //collect topics for existing future dates (CourseDate)
+ foreach ($this->getAllDates() as $date) {
+ if ($date->end_time >= time()) {
+ $topics_tmp = CourseTopic::findByTermin_id($date->termin_id);
+ if (!empty($topics_tmp)) {
+ $topics[] = $topics_tmp;
+ }
+ }
+
+ if (is_null($this->end_offset)) {
+ // check if seminar is endless
+ if ($course->isOpenEnded()) {
+ $last_sem = Semester::findOneBySQL('1 ORDER BY beginn DESC');
+ $end_time_offset = $last_sem->vorles_ende;
+ } else {
+ $end_time_offset = $course->end_semester->vorles_ende;
+ }
+ } else {
+ $end_time_offset = $this->calculateTimestamp($course->start_semester->vorles_beginn,
+ ($this->end_offset + 1) * 7
+ );
+ }
+
+ if ($date->date < $this->calculateTimestamp($course->start_semester->vorles_beginn, $this->week_offset * 7) ||
+ $date->date > $end_time_offset
+ ) {
+ $date->delete();
+ }
+ }
+ //restore for updated singledate entries
+ $this->resetRelation('dates');
+ $this->resetRelation('exdates');
+
+ //create start timestamp
+ $new_dates = $this->createTerminSlots($this->calculateTimestamp(
+ $course->start_semester->vorles_beginn,
+ $this->week_offset*7
+ ));
+
+ $update_count = 0;
+
+ foreach ($new_dates as $semester_dates) {
+ //update or create singeldate entries
+ foreach ($semester_dates['dates'] as $date) {
+ if ($date instanceof CourseDate && $date->date >= time() && count($topics) > 0) {
+ $date->topics = array_shift($topics);
+ }
+ if ($date->store()) {
+ $update_count++;
+ }
+ }
+
+ //delete unnecessary singeldate entries
+ foreach ($semester_dates['dates_to_delete'] as $date) {
+ $date->delete();
+ }
+ }
+ return $update_count;
+ }
+
+ /**
+ * generate single date objects for one cycle and all semester, existing dates are merged in
+ *
+ * @param startAfterTimeStamp => int timestamp to override semester start
+ * @return array array of arrays, for each semester id an array of two arrays of SingleDate objects: 'dates' => all new and surviving dates, 'dates_to_delete' => obsolete dates
+ */
+ private function createTerminSlots($startAfterTimeStamp = 0)
+ {
+ $course = Course::find($this->seminar_id);
+ $ret = [];
+
+ if ($startAfterTimeStamp == 0 || $startAfterTimeStamp < $course->start_semester->vorles_beginn) {
+ $startAfterTimeStamp = $course->start_semester->vorles_beginn;
+ }
+
+ // check if cycle has a fix end (end_offset == null -> endless)
+ if (is_null($this->end_offset)) {
+ // check if seminar is endless
+ if ($course->isOpenEnded()) {
+ $last_sem = Semester::findOneBySQL('1 ORDER BY beginn DESC');
+ $sem_end = $last_sem->vorles_ende;
+ } else {
+ $sem_end = $course->end_semester->vorles_ende;
+ }
+ } else {
+ $sem_end = $this->calculateTimestamp($course->start_semester->vorles_beginn, ($this->end_offset + 1) * 7);
+ }
+
+ $semester = Semester::findBySQL('beginn <= :ende AND ende >= :start',
+ ['start' => $startAfterTimeStamp, 'ende' => $sem_end]);
+
+ foreach ($semester as $val) {
+ $ret[$val['semester_id']] = $this->createSemesterTerminSlots($val['vorles_beginn'], $val['vorles_ende'], $startAfterTimeStamp);
+ }
+ return $ret;
+ }
+
+
+ /**
+ * generate single date objects for one cycle and one semester, existing dates are merged in
+ *
+ * @param string cycle id
+ * @param int timestamp of semester start
+ * @param int timestamp of semester end
+ * @param int alternative timestamp to start from
+ * @return array returns an array of two arrays of SingleDate objects: 'dates' => all new and surviving dates, 'dates_to_delete' => obsolete dates
+ */
+ private function createSemesterTerminSlots($sem_begin, $sem_end, $startAfterTimeStamp)
+ {
+
+ $dates = [];
+ $dates_to_delete = [];
+
+ // The currently existing singledates for the by metadate_id denoted regular time-entry
+ //$existingSingleDates =& $this->cycles[$metadate_id]->getSingleDates();
+ $all_dates = $this->getAllDates();
+ $existingSingleDates =& $all_dates;
+
+ $start_woche = $this->week_offset;
+ $turnus_offset = 0;
+
+ // This variable is used to check if a given singledate shall be created in a bi-weekly seminar.
+ if ($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 week ' . $day_of_week, max($sem_begin, $startAfterTimeStamp));
+
+ $start = explode(':', $this->start_time);
+
+ $start_time = mktime(
+ (int)$start[0], // Hour
+ (int)$start[1], // Minute
+ 0, // Second
+ date("n", $stamp), // Month
+ date("j", $stamp), // Day
+ date("Y", $stamp)); // Year
+
+ $end = explode(':', $this->end_time);
+ $end_time = mktime(
+ (int)$end[0], // Hour
+ (int)$end[1], // Minute
+ 0, // Second
+ date("n", $stamp), // Month
+ date("j", $stamp), // Day
+ date("Y", $stamp)); // Year
+
+ $course = Course::find($this->seminar_id);
+
+ // check if cycle has a fix end (end_offset == null -> endless)
+ if (is_null($this->end_offset)) {
+ // check if seminar is endless
+ if ($course->isOpenEnded()) {
+ $last_sem = Semester::findOneBySQL('1 ORDER BY beginn DESC');
+ $end_time_offset = $last_sem->vorles_ende;
+ } else {
+ $end_time_offset = $course->end_semester->vorles_ende;
+ }
+ } else {
+ $end_time_offset = $this->calculateTimestamp($course->start_semester->vorles_beginn, ($this->end_offset + 1) * 7);
+ }
+
+ // 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
+ $dateExists = false;
+
+ // do not create singledates if they are earlier than the semester start
+ if ($end_time < $sem_begin) {
+ $dateExists = true;
+ $turnus_offset = 1;
+ }
+
+ /*
+ * 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 => $val) {
+ // take only the singledate into account, that maps the current timepoint
+ // only compare the week and year, because dates in the past may differ on time or day
+ if ($start_time > $startAfterTimeStamp && date('W Y', $val->date) == date('W Y', $start_time)) {
+ $dateExists = true;
+ if (isset($existingSingleDates[$key])) {
+ $dates[] = $val;
+ }
+ }
+ }
+
+ if (!$dateExists) {
+ $termin = new CourseDate();
+
+ $all_holiday = SemesterHoliday::getAll(); // fetch all Holidays
+ foreach ($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 (!is_bool($holy_type) && $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 && $end_time < $end_time_offset);
+
+ //calulate trurnus
+ if ($this->cycle != 0) {
+ return $this->calculateTurnusDates($dates, $turnus_offset);
+ }
+ return ['dates' => $dates, 'dates_to_delete' => $dates_to_delete];
+ }
+
+
+ /**
+ * Calculate turnus for singledate entries
+ *
+ * @param array $dates
+ * @param int $turnus_offset correction for turnus calculation if first date is not within semester
+ * @return array
+ */
+ public function calculateTurnusDates($dates, $turnus_offset)
+ {
+ $week_count = 0 + $turnus_offset;
+ $dates_to_store = [];
+ $dates_to_delete = [];
+ foreach ($dates as $date) {
+
+ if ($this->cycle == 1 && $week_count % 2 != 0 && $week_count > 0) {
+ if (!$date->isNew()) {
+ $dates_to_delete[] = $date;
+ }
+ } else if ($this->cycle == 2 && $week_count % 3 != 0 && $week_count > 0) {
+ if (!$date->isNew()) {
+ $dates_to_delete[] = $date;
+ }
+ } else {
+ $dates_to_store[] = $date;
+ }
+ $week_count++;
+ }
+ return ['dates' => $dates_to_store, 'dates_to_delete' => $dates_to_delete];
+ }
+
+ /**
+ * removes all singleDates which are NOT between $start and $end
+ *
+ * @param int timestamp for start
+ * @param int timestamp for end
+ * @param string seminar_id
+ */
+ public static function removeOutRangedSingleDates($start, $end, $seminar_id)
+ {
+ $query = "SELECT termin_id
+ FROM termine
+ WHERE range_id = ? AND (`date` NOT BETWEEN ? AND ?)
+ AND NOT (metadate_id IS NULL OR metadate_id = '')";
+ $statement = DBManager::get()->prepare($query);
+ $statement->execute([$seminar_id, $start, $end]);
+ $ids = $statement->fetchAll(PDO::FETCH_COLUMN);
+
+ foreach ($ids as $id) {
+ $termin = new SingleDate($id);
+ $termin->delete();
+ unset($termin);
+ }
+
+ if (count($ids) > 0) {
+ // remove all assigns for the dates in question
+ $query = "SELECT id FROM resource_bookings WHERE range_id IN (?)";
+ $statement = DBManager::get()->prepare($query);
+ $statement->execute([$ids]);
+
+ $booking_ids = $statement->fetchAll(PDO::FETCH_COLUMN | PDO::FETCH_UNIQUE, 0);
+
+ ResourceBooking::deleteBySql(
+ 'id IN ( :booking_ids )',
+ [
+ 'booking_ids' => $booking_ids
+ ]
+ );
+ }
+
+ $query = "DELETE FROM ex_termine
+ WHERE range_id = ? AND (`date` NOT BETWEEN ? AND ?)
+ AND NOT (metadate_id IS NULL OR metadate_id = '')";
+ $statement = DBManager::get()->prepare($query);
+ $statement->execute([$seminar_id, $start, $end]);
+ }
+
+ /**
+ * returns a new timestamp for an given start-timestamp and
+ * an amount of days calculated with DateTime-Class
+ *
+ * @param int starttime as timestamp
+ * @param int amount of days
+ * @return int new timestamp
+ */
+ private static function calculateTimestamp($base, $days = 0)
+ {
+ $date = new DateTime();
+ $date->setTimestamp($base);
+ $date->modify(sprintf('this week monday +%s days', $days));
+ return $date->getTimestamp();
+ }
+
+
+ /**
+ * This is a helper method for getRoomRequestsForDates and
+ * countRoomRequestsForDates which helps at building the
+ * SQL query and parameters.
+ *
+ * @returns array An associative array with two indexes:
+ * - sql: The SQL query
+ * - sql_params: The parameters for the SQL query as associative array.
+ */
+ protected function buildOpenRequestsForDatesQuery(
+ $include_metadate = false,
+ $order = ''
+ )
+ {
+ $sql = "closed < '1' AND ";
+ $sql_params = [];
+
+ if ($include_metadate) {
+ $sql = 'metadate_id = :metadate_id OR ';
+ }
+
+ $sql .= 'termin_id IN (
+ SELECT termin_id FROM termine
+ WHERE metadate_id = :metadate_id
+ ) OR id IN (
+ SELECT request_id
+ FROM resource_request_appointments rra
+ INNER JOIN termine
+ ON rra.appointment_id = termine.termin_id
+ WHERE termine.metadate_id = :metadate_id
+ ) ';
+ $sql_params['metadate_id'] = $this->id;
+
+ if ($order) {
+ $sql .= 'ORDER BY ' . $order;
+ }
+ return [
+ 'sql' => $sql,
+ 'sql_params' => $sql_params
+ ];
+ }
+
+
+ /**
+ * Returns the open room requests that are associated with this metadate.
+ * If the optional parameter $include_metadate is set to false,
+ * the requests associated with this metadate are not included
+ * in the result.
+ *
+ * @param bool $include_metadate Whether to include requests associated
+ * with this metadate (true) or not (false). The default is false.
+ *
+ * @returns ResourceRequest[] The requests for this metadate.
+ */
+ public function getOpenRequestsForDates(
+ $include_metadate = false,
+ $order = 'mkdate DESC'
+ )
+ {
+ $data = $this->buildOpenRequestsForDatesQuery($include_metadate, $order);
+ return ResourceRequest::findBySql($data['sql'], $data['sql_params']);
+ }
+
+
+ /**
+ * Returns the amount of open room requests that are associated
+ * with this metadate.
+ * The amount of requests is determined by counting requests that are
+ * directly associated to this metadate and the requests that are
+ * associated with the dates of this metadate.
+ * If the optional parameter $include_metadate is set to false,
+ * the requests associated with this metadate are not included
+ * in the result.
+ *
+ * @param bool $include_metadate Whether to include requests associated
+ * with this metadate (true) or not (false). The default is false.
+ *
+ * @returns int The amount of requests for this metadate.
+ */
+ public function countOpenRequestsForDates($include_metadate = false)
+ {
+ $data = $this->buildOpenRequestsForDatesQuery($include_metadate);
+ return ResourceRequest::countBySql($data['sql'], $data['sql_params']);
+ }
+}
generated by cgit v1.0 at 2026-05-27 05:37:18 +0000