. */ $incdir = dirname(__FILE__) . DIRECTORY_SEPARATOR; include_once $incdir . 'class.course.inc'; include_once $incdir . 'class.section.php'; include_once $incdir . 'class.page.php'; require_once $incdir . 'school.inc'; require_once $incdir . 'math.inc'; /* * Load a Classes -> Course converter class for the sake of the * Schedule::__wakeup() magic function. */ require_once $incdir . 'class.classes_convert.inc'; /** * \brief * Finds possible Section combinations for a user's given Courses * and stores and displays the results. * * Represents a schedule of a week. Stores the classes that are part * of that week and calculates all the possible permutations. */ class Schedule { /* * Variables for upgrading from saved schedules created when there * was a class called Classes. */ private $classStorage; // array of courses private $nclasses; // Integer number of classes /** * \brief * Provides a mapping to regain the user's original input. * * Currently, the Schedule object cannot natively handle CourseSlot * objects properly. It assumes that each Course has one and only * one CourseSlot. This array maps each Course object stored in * $classStorage onto the index of the course it was originally * from. I.e., if the Course at index 0 had two CourseSlot objects, * array(0 => 0, 1 => 0, 2 => 1) would map these two CourseSlot * objects onto the same Course object and have the next CourseSlot * be mapped into a separate Course object. */ private $course_slot_mappings; /* My member variables. */ private $courses; private $nPermutations = 0; // Integer number of real permutations private $possiblePermutations; // Integer number of possible permutations private $scheduleName; // String name of schedule private $storage; // Integer array of valid schedules /** * \brief * The school_id of the school this schedule was created for. */ private $school_id; /** * \brief * The semester this schedule was created for. * * The semester array is stored in full in a schedule because some * schools do not keep a backlog of all semesters for their course * data. Such a school is calvin. We want to be able to access, for * example, the friendly name and so on of a semester even one year * after the semester is created without worrying about having that * semester be stored in the autocomplete cache. */ private $semester; /* The of the page used when rendering this schedule */ private $title; /** * \brief * My global identification number. Not defined until the schedule * is processed and first saved. */ private $id; /* * The identifier of the schedule from which this schedule was * derived or NULL. */ private $parent_id; /** * \brief * When I was created, a unix timestamp. */ private $created; /** * \brief * Create a schedule with the given name. * * \param $name * A string, the friendly name the user gave this schedule. * \param $parent * An integer, the id of the schedule from which this schedule is * derived. A schedule is considered to be derived of another of * the user created this schedule by clicking ``Edit'' for the * previous schedule. Or NULL if this schedule stands on its own. * \param $school * The school used for this schedule. The intention of storing * this data is that people from different schools may share * schedules with eachother. Also, people who bookmark their * schedules and want to edit their schedules should not have to * go through the school selection dialogue again but should just * be set to use the correct school. * \param $semester * The semester used for this schedule. */ function __construct($name, $parent = NULL, array $school = NULL, array $semester = NULL) { $this->courses = array(); $this->course_slot_mappings = array(); $this->scheduleName = $name; $this->storage = array(); $this->title = "SlatePermutate - Scheduler"; $this->parent_id = $parent; if (empty($school)) $school = school_load_guess(FALSE); $this->school_id = $school['id']; if (empty($semester)) { $semester = school_semester_guess($school); } $this->semester = $semester; $this->created = time(); /* mark this as an upgraded Schedule class. See __wakeup() */ $this->nclasses = -1; } //-------------------------------------------------- // Mutators and Accessors //-------------------------------------------------- public function getName() { return $this->scheduleName; } /** * \brief * Adds a new class to the schedule. * * \param $slot * Currently, the Schedule class is not smart enough to understand * CourseSlots. At a lower level, we split Courses with multiple * CourseSlots into multiple Course objects with redundant * information. */ function addCourse($course_id, $title) { $this->courses[] = new Course($course_id, $title); } /** * \brief * Adds a section to this semester after finding the class. * * \param $instructor * The instructor of this section/section_meeting. * * \return * NULL on success, a string on error which is a message for the * user and a valid XHTML fragment. */ function addSection($course_name, $letter, $time_start, $time_end, $days, $synonym = NULL, $instructor = NULL, $location = NULL, $type = 'lecture', $slot = 'default', $credit_hours = -1.0, $date_start = NULL, $date_end = NULL) { if (empty($letter) && (empty($time_start) || !strcmp($time_start, 'none')) && (empty($time_end) || !strcmp($time_end, 'none')) && empty($days) && empty($synonym) && empty($instructor) && empty($location) && (empty($type) || !strcmp($type, 'lecture')) && (empty($slot) || !strcmp($slot, 'default'))) return; /* reject invalid times */ if (!strcmp($time_start, 'none') || !strcmp($time_end, 'none') || $time_start > $time_end) { return 'Invalid time specifications for ' . htmlentities($course_name) . '-' . htmlentities($letter) . '. Start time: <tt>' . htmlentities($time_start) . '</tt>. End time: <tt>' . htmlentities($time_end) . '</tt>.'; } if (!empty($credit_hours) && !is_numeric($credit_hours)) { return 'Invalid credit-hour specification of <tt>' . htmlentities($credit_hours) . '</tt> for ' . htmlentities($course_name) . '-' . htmlentities($letter) . '. Please use a floating point number or do not enter anything if the number of credit hours is not known.'; } if (empty($date_start) != empty($date_end) || !empty($date_start) && !is_numeric($date_start) || !empty($date_end) && !is_numeric($date_end)) { return 'Invalid date range specification of <tt>' . htmlentities($date_start, ENT_QUOTES) . '</tt> through <tt>' . htmlentities($date_end, ENT_QUOTES) . '</tt>. Was expecting two valid unix timestamps or two empty values.'; } foreach ($this->courses as $course) if (!strcmp($course_name, $course->getName())) { $section = $course->section_get($letter); if (!$section) { $section = new Section($letter, array(), $synonym, $credit_hours); $course->section_add($section, $slot); } $section->meeting_add(new SectionMeeting($days, $time_start, $time_end, $location, $type, $instructor, $date_start, $date_end)); return; } error_log('Could not find class when parsing schedule from postData: ' . $course_name); echo 'Could not find class: ' . $course_name . "<br />\n"; } /** * \brief * Get the school associated with this schedule. * * \return * The school associated with this schedule or some fallback. */ public function school_get() { $school = NULL; if (!empty($this->school_id)) /* * May return NULL, so we don't just return this value right * away -- we fall through. */ $school = school_load($this->school_id); if (empty($school)) { /* Ensure we have $_SESSION. */ page::session_start(); $school = school_load_guess(FALSE); } return $school; } /** * \brief * Get the semester associated with this schedule. * * \return * The schedule's associated semester. */ public function semester_get() { return $this->semester; } //-------------------------------------------------- // Finds all of the possible permutations and stores // the results in the storage array. //-------------------------------------------------- function findPossibilities() { /* * Split out any Course objects with multiple CourseSlots * into multiple Course objects... */ $new_courses = array(); foreach ($this->courses as $i => $course) foreach ($course as $course_slot) { $new_course = new Course($course->getName(), $course->title_get()); $new_course->course_slot_add($course_slot); $new_courses[] = $new_course; $this->course_slot_mappings[count($new_courses) - 1] = $i; } $this->courses = $new_courses; unset($new_courses); /* * Clean crud (completely empty courses) out of the * schedule. For some crud, it's much easier to detect that * it's crud now than during parsing of postData[]. * * Now we may assume that each Course only has one * CourseSlot... */ foreach ($this->courses as $i => $course) { $course_slot = NULL; foreach ($course as $course_slot) break; if (empty($course_slot) || !$course_slot->sections_count()) { unset($this->courses[$i]); $this->courses = array_values($this->courses); return $this->findPossibilities(); } } $this->possiblePermutations = 1; /* special case: there is nothing entered into the schedule and thus there is one, NULL permutation */ if (!count($this->courses)) { /* have an empty schedule */ $this->nPermutations = 1; return; } $position = 0; $counter = 0; $i = 0; foreach ($this->courses as $course) { /* * Kludge for until we support course_slots natively * or find a better solution. */ unset($course_slot); foreach ($course as $course_slot) break; $this->possiblePermutations = $this->possiblePermutations * $course_slot->sections_count(); $cs[$i] = 0; // Sets the counter array to all zeroes. $i ++; } // Checks for conflicts in given classes, stores if none found do { $conflict = false; // Get first class to compare for ($upCounter = 0; $upCounter < count($this->courses) && !$conflict; $upCounter ++) { for ($downCounter = count($this->courses) - 1; $downCounter > $upCounter && !$conflict; $downCounter --) { unset($course_slot_up); foreach ($this->courses[$upCounter] as $course_slot_up) break; unset($course_slot_down); foreach ($this->courses[$downCounter] as $course_slot_down) break; if ($course_slot_up->section_get_i($cs[$upCounter])->conflictsWith($course_slot_down->section_get_i($cs[$downCounter]))) { $conflict = TRUE; break; } } } // Store to storage if no conflict is found. if(!$conflict) { for($i = 0; $i < count($this->courses); $i++) { $this->storage[$this->nPermutations][$i] = $cs[$i]; } $this->nPermutations++; } // Increase the counter by one to get the next combination of class sections. $cs[$position] = $cs[$position] + 1; // Check to make sure the counter is still valid. $valid = false; while(!$valid) { unset($course_slot); foreach ($this->courses[$position] as $course_slot) break; if($cs[$position] == $course_slot->sections_count()) { $cs[$position] = 0; $position++; // This is for the very last permutation. Even // though the combination is not actually true // the larger while loop will end before any // new combinations are performed. if($position == count($this->courses)) { $valid = true; } else { $cs[$position]++; } } else { $valid = true; $position = 0; } } $counter++; } while($counter < $this->possiblePermutations); } /** * \brief * Prints out the possible permutations in tables. * * \param $schedule_store * The schedule_store handle with which this schedule was loaded, * used to query the parent schedule. */ //-------------------------------------------------- function writeoutTables(array $schedule_store = NULL) { $filled = false; $time = array(700,730,800,830,900,930,1000,1030,1100,1130,1200,1230,1300,1330,1400,1430,1500,1530,1600,1630,1700,1730,1800,1830,1900,1930,2000,2030,2100,2130, 2200); define('SP_PERMUTATIONS_PER_PAGE', 64); /** @TODO: Define this in config.inc */ $npages = ceil($this->nPermutations / SP_PERMUTATIONS_PER_PAGE); $page = 0; if (isset($_REQUEST['page'])) $page = $_REQUEST['page']; /* * only display the ``this page doesn't exist'' 404 if there is at * least one permutation. Otherwise, we give an irrelevant 404 for * users with no permutations. */ if ($this->nPermutations && $page >= $npages) Page::show_404('Unable to find page ' . $page . ', there are only ' . $this->nPermutations . ' non-conflicting permutations, for a total of ' . $npages . ' pages.'); /* zero-based */ $first_permutation = $page * SP_PERMUTATIONS_PER_PAGE; $last_permutation = min($this->nPermutations, $first_permutation + SP_PERMUTATIONS_PER_PAGE); $footcloser = ''; $headcode = array('jQuery', 'jQueryUI', 'uiTabsKeyboard', 'displayTables', 'outputStyle', 'jQuery.cuteTime', 'qTip2'); if(!empty($_REQUEST['print'])) array_push($headcode, 'outputPrintStyle'); else array_push($headcode, 'jAddress'); $outputPage = page::page_create(htmlentities($this->getName()), $headcode, array('school' => $this->school_get(), 'semester' => $this->semester_get())); $outputPage->conversion(); if (!empty($this->created)) $outputPage->meta('dcterms.created', gmdate(DATE_W3C, $this->created)); if ($schedule_store !== NULL && $this->parent_get() !== NULL && ($parent_schedule = schedule_store_retrieve($schedule_store, $this->parent_get())) !== NULL) { $parent_uri = $parent_schedule->my_url(); $outputPage->meta('dcterms.relation', $parent_uri); $outputPage->meta('dcterms.replaces', $parent_uri); } $outputPage->head(); if(!empty($_REQUEST['print'])) { $script = '' . 'jQuery(document).ready( function() {' . PHP_EOL . ' window.print();' . PHP_EOL . '});'; echo $outputPage->script_wrap($script); echo '<p><a href="'.$_SERVER['SCRIPT_NAME'].'?s=' . $this->id_get() . '">« Return to normal view</a> </p>'; } else { echo ' <script type="text/javascript">'; echo ' jQuery(document).ready( function() {'; echo ' jQuery("#tabs").tabs();'; echo ' jQuery.address.change(function(event){'; echo ' jQuery("#tabs").tabs( "select" , window.location.hash );'; echo ' });'; echo ' jQuery("#tabs").bind("tabsselect", function(event, ui) {'; echo ' window.location.hash = ui.tab.hash;'; echo ' });'; echo ' jQuery("#sharedialog").dialog({ modal: true, width: 550, resizable: false, draggable: false, autoOpen: false });'; echo ' jQuery("#share").click( function() { jQuery("#sharedialog").dialog("open"); });'; echo ' jQuery(\'#printItems\').click( function() { window.location = "'.$_SERVER['SCRIPT_NAME'].'?s='.$this->id_get().'&print=" + (jQuery(\'#tabs\').tabs(\'option\',\'selected\') + 1); }); jQuery(\'#cancelItems\').click( function() { jQuery(\'#selectItemsInput\').hide(); });' . ' ' . PHP_EOL . ' jQuery(\'.cute-time\').cuteTime();' . PHP_EOL . ' });' . PHP_EOL . ' </script>' . PHP_EOL; echo ' <div id="sharedialog" title="Share Schedule">' . PHP_EOL . ' <p class="indent"><img alt="[fb]" class="noborder" src="http://facebook.com/favicon.ico" /> <a href="http://www.facebook.com/sharer.php?u=' . urlencode(htmlentities($outputPage->gen_share_url($this->id_get()))) .'&t=My%20Schedule">Share on Facebook</a></p> <p class="indent"><img alt="[sp]" class="noborder" src="images/favicon.png" style="margin-right: 5px;"/><span class="clicktoclipboard"><a href="#">Share with URL</a><span class="toclipboard hidden"><p>Copy the share URL below:<br /><em class="centeredtext smallurl">' . htmlentities($outputPage->gen_share_url($this->id_get())) . '</em></p></span></span></p>' . PHP_EOL . ' </div>' . PHP_EOL . ' <p>' . PHP_EOL . ' <a href="input.php?s='.$this->id.'" class="button">Edit</a>' . PHP_EOL . ' <span id="printItems"><a href="#" class="button">Print</a></span>' . PHP_EOL . ' <span id="share"><a href="#" class="button">Share</a></span>' . PHP_EOL; if (!empty($parent_schedule)) { echo ' <a class="button" href="' . htmlentities($parent_uri, ENT_QUOTES) . '" title="Parent schedule: ' . htmlentities($parent_schedule->getName()) . '">Parent</a>' . PHP_EOL; } echo ' <a class="button" href="input.php">Home</a>' . PHP_EOL . ' </p>'. PHP_EOL . ' <p class="centeredtext">Having problems? <a href="feedback.php">Let us know</a>.</p>' . PHP_EOL . ' <p class="centeredtext graytext"><em>Keyboard Shortcut: Left and right arrow keys switch between schedules</em></p>' . PHP_EOL; } echo "\n"; if($this->nPermutations > 0) { /* * Figure out if we have to deal with Saturday and then deal * with it. * * Also, ensure that our $time array is big enough for all of * these courses. */ $dayloop_max = 5; $have_sunday = FALSE; $have_saturday = FALSE; $max_time = (int)max($time); $min_time = (int)min($time); $sort_time = FALSE; foreach ($this->courses as $course) foreach ($course as $course_slot) { for ($si = 0; $si < $course_slot->sections_count(); $si ++) foreach ($course_slot->section_get_i($si)->getMeetings() as $meeting) { /* Sundayness and Saturdayness */ if ($meeting->getDay(6)) $have_sunday = TRUE; if ($meeting->getDay(5)) $have_saturday = TRUE; /* very late / very early classes */ while ((int)ltrim($meeting->getEndTime(), '0') > $max_time) { $max_time += $max_time + 30; while ($max_time % 100 >= 60) $max_time += 40; /* + 100 - 60 */ $time[] = $max_time; } while ((int)ltrim($meeting->getStartTime(), '0') < $min_time) { $max_time += 30; while ($min_time % 100 < 30) $min_time -= 40; /* + 60 - 100 */ $min_time -= 30; $time[] = $min_time; $sort_time = TRUE; } } } /* ensure that early times are actually first ;-) */ if ($sort_time) sort($time); if ($have_saturday) $dayloop_max = 6; echo ' <div id="regDialog" title="Registration Codes">' . PHP_EOL . ' <div id="regDialog-content"></div>' . PHP_EOL . ' <p class="regDialog-disclaimer graytext">' . PHP_EOL . ' <em>' . PHP_EOL . ' Note: The registration information above corresponds to the sections' . PHP_EOL . ' displayed on the currently selected tab.' . PHP_EOL . ' </em>' . PHP_EOL . ' </p>' . PHP_EOL . ' <p class="regDialog-disclaimer graytext">' . PHP_EOL . ' <em>' . PHP_EOL . ' Disclaimer: You are responsible for' . PHP_EOL . ' double-checking the information you get from and input into slate_permutate' . PHP_EOL . ' when registering for classes. There is no guarantee that the harvested' . PHP_EOL . ' information is correct or that slate_permutate will handle' . PHP_EOL . ' the information you enter correctly.' . PHP_EOL . ' </em>' . PHP_EOL . ' </p>' . PHP_EOL . ' </div>' . PHP_EOL; echo '<div id="tabs">' . "\n" . '<div id="show-box" class="show-buttons"> <form action="#"><p class="nospace"> <label><strong>Display:</strong></label> <input id="show-course-title" name="show-course-title" type="checkbox" /><label for="show-course-title">Course Title</label> <input id="show-prof" name="show-prof" type="checkbox" checked="checked" /><label for="show-prof">Professor</label> <input id="show-location" name="show-location" type="checkbox" /><label for="show-location">Room</label> <input id="show-synonym" name="show-synonym" type="checkbox" /><label for="show-synonym">Synonym</label> <input id="show-credit-hours" name="show-credit-hours" type="checkbox" /><label for="show-credit-hours">Credits</label> <span id="regCodes"><label><a href="#"><strong>Register for Classes</strong></a></label></span></p> </form> </div> <!-- id="show-box" -->' . '<div id="the-tabs"><ul>' . "\n"; $suppressed_permutations = array(); if (!empty($_REQUEST['print'])) { $print = $_REQUEST['print']; if ($print !== 'all') { for ($i = $first_permutation; $i <= $last_permutation; $i ++) $suppressed_permutations[$i] = TRUE; foreach (explode(',', $print) as $item_to_print) unset($suppressed_permutations[((int)$item_to_print) - 1]); } } for($nn = $first_permutation + 1; $nn <= $last_permutation; $nn++) { if (!empty($suppressed_permutations[$nn - 1])) continue; echo "<li><a href=\"#tabs-" . $nn . "\"> " . $nn . " </a></li>\n"; } echo " </ul></div>\n \n"; echo " <div id=\"pagers\">\n"; /* Previous button */ if ($page > 0) echo ' <div id="pager-previous" class="pager left"><a href="' . htmlentities($this->my_url($page - 1), ENT_QUOTES) . '" rel="prev prefetch">« Previous</a></div>' . "\n"; /* Next button */ if ($page + 1 < $npages) echo ' <div id="pager-next" class="pager right"><a href="' . htmlentities($this->my_url($page + 1), ENT_QUOTES) . '" rel="next prefetch">Next »</a></div>' . "\n"; echo " </div> <!-- id=\"pagers\" -->\n"; echo " <div class=\"scroller\">\n" . " <div class=\"scontent\">\n"; for($i = $first_permutation; $i < $last_permutation; $i++) { /* * Skip suppressed permutations, such as when displaying a * page for printing a particular permutation. */ if (!empty($suppressed_permutations[$i])) continue; /* * Store a JSON list of courses, each with only the one * section rendered in this permutation. This is used for * the ``Registration Numbers'' dialog which noramlly * shows users course synonyms. */ $permutation_courses = array(); /* * Count the number of credit hours in this particular * schedule. */ $credit_hours = array(); $have_credit_hours = FALSE; echo ' <div class="section" id="tabs-' . ($i+1) . "\">\n"; // Beginning of table echo " <table style=\"empty-cells:show;\" border=\"1\" cellspacing=\"0\">\n"; // Header row echo " <tr>\n" . ' <td class="none permuteNum">' . ($i + 1) . "</td>\n"; if ($have_sunday) echo ' <td class="day">Sunday</td>' . PHP_EOL; echo " <td class=\"day\">Monday</td>\n" . " <td class=\"day\">Tuesday</td>\n" . " <td class=\"day\">Wednesday</td>\n" . " <td class=\"day\">Thursday</td>\n" . " <td class=\"day\">Friday</td>\n"; if ($have_saturday) echo " <td class=\"day\">Saturday</td>\n"; echo " </tr>\n"; $last_meeting = array(); $rowspan = array(0, 0, 0, 0, 0, 0, 0); for($r = 0; $r < (count($time)-1); $r++) { echo " <tr>\n" . " <td class=\"time\">" . $this->prettyTime($time[$r]) . "</td>\n"; /* * Currently, 6, 0-5 = sunday, monday-saturday. We use * the trick that -1 through 5 mod 7 is * sunday-saturday. */ for($dayLoop = $have_sunday ? -1 : 0; $dayLoop < $dayloop_max; $dayLoop = ($dayLoop + 1) % 7) { if ($dayLoop < 0) $dayLoop = 6; /* Makes sure there is not a class already in progress */ if($rowspan[$dayLoop] <= 0) { for($j = 0; $j < count($this->courses); $j++) { $course = $this->courses[$j]; foreach ($course as $course_slot) { $section_index = $this->storage[$i][$j]; $section = $course_slot->section_get_i($section_index); /* iterate through all of a class's meeting times */ $meetings = $section->getMeetings(); /* find any meeting which are going on at this time */ $current_meeting = NULL; foreach ($meetings as $meeting) { if ($meeting->getDay($dayLoop) && $meeting->getStartTime() >= $time[$r] && $meeting->getStartTime() < $time[$r+1]) { $current_meeting = $meeting; } } if ($current_meeting) { /* calculate how many rows this section should span */ for ($my_r = $r; $my_r < (count($time)-1) && $current_meeting->getEndTime() > $time[$my_r]; $my_r ++) ; $rowspan[$dayLoop] = $my_r - $r; $single_multi = 'single'; if ($rowspan[$dayLoop] > 1) $single_multi = 'multi'; $title = $course->title_get(); if (empty($title)) $title = ''; else $title .= ' '; $carret = ' ' . htmlentities("<br />"); echo ' <td rowspan="' . $rowspan[$dayLoop] . '" class="qTipCell ' . $single_multi . ' class' . $j . '" title="' . htmlentities($title, ENT_QUOTES) . $carret . 'Prof: ' . htmlentities($current_meeting->instructor_get(), ENT_QUOTES) . $carret . 'Room: ' . htmlentities($current_meeting->getLocation(), ENT_QUOTES) . $carret . 'Type: ' . htmlentities($current_meeting->type_get(), ENT_QUOTES) . $carret; $section_credit_hours = $section->credit_hours_get(); if ($section_credit_hours >= 0) { $credit_hours[$section->getSynonym()] = $section_credit_hours; $have_credit_hours = TRUE; echo 'Credits: ' . htmlentities($section_credit_hours, ENT_QUOTES) . $carret; } echo '">' . '<span class="course-title block">' . htmlentities($title) . '</span>' . PHP_EOL . htmlentities($course->getName(), ENT_QUOTES) . '-' . htmlentities($section->getLetter(), ENT_QUOTES) . "\n" . '<span class="prof block">' . htmlentities($current_meeting->instructor_get(), ENT_QUOTES) . "</span>\n" . '<span class="location block">' . htmlentities($current_meeting->getLocation(), ENT_QUOTES) . "</span>\n" . '<span class="synonym block">' . htmlentities($section->getSynonym(), ENT_QUOTES) . "</span>\n" . '<span class="credit-hours block">' . htmlentities($section_credit_hours, ENT_QUOTES) . ' Credits</span>' . PHP_EOL . "</td>\n"; /* for the ``Registration Codes'' dialogue: */ if (empty($permutations_courses[$j])) { $singleton_course = new Course($course->getName(), $course->title_get()); $singleton_course->section_add($section, $course_slot->id_get()); $permutation_courses[$j] = $singleton_course->to_json_array(); } $filled = TRUE; } } /* $course_slot */ } } if ($rowspan[$dayLoop] > 0) { $filled = TRUE; $rowspan[$dayLoop] --; } /* If the cell was not filled, fill it with an empty cell. */ if(!$filled) { echo " <td class=\"none\"> </td>\n"; } $filled = FALSE; } // End of row echo " </tr>\n"; } // End of table echo " </table>\n"; if ($have_credit_hours) echo ' <p>Credit Hours: ' . sum($credit_hours) . '</p>' . PHP_EOL; echo '' . ' <span class="course-data">'. htmlentities(json_encode($permutation_courses)) . "</span>\n" . ' </div> <!-- id="section' . ($i + 1) . "\" -->\n"; } echo " </div> <!-- class=\"scontent\" -->\n" . " </div> <!-- class=\"scroller\" -->\n" . "</div> <!-- id=\"my-glider\" -->\n" . $footcloser; // Closes off the content div } else { echo '<html><body><p>There are no possible schedules. Please <a href="input.php?s='.$this->id.'">try again</a>.</p></body></html>'; } echo '<p id="possiblestats">' . PHP_EOL; if ($this->possiblePermutations == 1) echo 'There was one possible permutation.'; else echo 'There were a total of ' . $this->possiblePermutations . ' possible permutations.'; if ($this->possiblePermutations == $this->nPermutations) echo ' No permutations had'; elseif (!$this->nPermutations) echo ' All permutations had'; else echo ' Only ' . $this->nPermutations . ' permutation' . ($this->nPermutations == 1 ? '' : 's') . ' had no'; echo ' scheduling conflicts.' . PHP_EOL . '</p>' . PHP_EOL; if ($this->created) echo '' . '<p id="created-time">' . PHP_EOL . ' Created <span class="cute-time">' . gmdate('c', $this->created) . '</span>.' . PHP_EOL . '</p>' . PHP_EOL; $outputPage->foot(); } //-------------------------------------------------- // Changes the title of the page. //-------------------------------------------------- function changeTitle($t) { $this->title = $t; } //-------------------------------------------------- // Make the time "pretty" //-------------------------------------------------- function prettyTime($t){ if($t >= 1200) { if ($t > 1259) $t = ($t - 1200); return substr($t, 0, strlen($t)-2) . ":" . substr($t, strlen($t)-2, strlen($t)) . " PM"; } else { return substr($t, 0, strlen($t)-2) . ":" . substr($t, strlen($t)-2, strlen($t)) . " AM"; } } /** * \brief * fetch the number of classes */ function nclasses_get() { return count($this->courses); } /** * \brief * Fetch a specified class by its key. * * Use Schedule::courses_get() instead of this function if the code * you're writing understand CourseSlot objects. * * \see Schedule::courses_get(). */ public function class_get($class_key) { return $this->courses[$class_key]; } /** * \brief * Get an array of Course objects as originally inputted by the * user. */ public function courses_get() { /* * As Mr. Westra would say, just map them courses back into their * original forms. */ $courses = array(); foreach ($this->courses as $course_i => $course) { $mapping = $this->course_slot_mappings[$course_i]; if (empty($courses[$mapping])) $courses[$mapping] = new Course($course->getName(), $course->title_get()); foreach ($course as $course_slot) $courses[$mapping]->course_slot_add($course_slot); } return $courses; } /** * \brief * Set my global ID. * * Only to be called by schedule_store_store(). */ function id_set($id) { $this->id = $id; } /* * \brief * Get my global ID. */ function id_get() { return $this->id; } /** * \brief * Write out a relative URL for a particular schedule. * * Takes into account the $clean_urls setting. * * \param $id * The ID of the schedule to link to. * \param $page * The page/tab of the schedule to link to. Defaults to 0. * \return * A string, the URL used to access the specified * schedule. Remember that if this string is inserted into an * XHTML document, htmlentities() must be called on it. */ public static function url($id, $page = 0) { global $clean_urls; $query = array(); if ($clean_urls) $url = (int)$id; else { $url = 'process.php'; $query['s'] = (int)$id; } if ($page) $query['page'] = (int)$page; if (!empty($query)) { $query_processed = array(); foreach ($query as $key => $value) $query_processed[] = $key . '=' . rawurlencode($value); $url .= '?' . implode('&', $query_processed); } return $url; } /** * \brief * Return the URL used to access this schedule. * * Convenience wrapper around Schedule::url(). * * \param $page * Which page (tab) of the schedule to link to. * \return * A raw URL (one that must be htmlentities()ized before putting * into HTML). */ public function my_url($page = 0) { return Schedule::url($this->id, $page); } /** * \brief * Get the ID of the schedule from which this schedule was * derived. */ public function parent_get() { return $this->parent_id; } /** * \brief * Get the unix timestamp of when this schedule was created * (saved). * * \return * A unix timestamp. 0 if the timestamp is unavailable. */ public function created_get() { return $this->created; } /** * \brief * A magic function which tries to upgrade old serialized sections * to the new format. */ function __wakeup() { if ($this->nclasses != -1) { /* this Schedule needs to be upgraded from Classes to Course */ $this->courses = array(); foreach ($this->classStorage as $classes) $this->courses[] = $classes->to_course(); $this->nclasses = -1; } if (empty($this->parent_id)) $this->parent_id = NULL; if (empty($this->school_id)) { /* Ensure we have $_SESSION. */ page::session_start(); $school = school_load_guess(FALSE); $this->school_id = $school['id']; } if (empty($this->semester)) { if (empty($school)) { /* Ensure we have $_SESSION. */ page::session_start(); $school = school_load($this->school_id); $this->semester = school_semester_guess($school); } } if (empty($this->course_slot_mappings)) { $this->course_slot_mappings = array(); foreach ($this->courses as $course_i => $course) $this->course_slot_mappings[$course_i] = count($this->course_slot_mappings); } if (empty($this->created)) $this->created = 0; } }