}
}
echo "</select>";
}
?>
<input type="submit" value="Go!" name="submit">
</form>
Manage selected courses:<br>
<form action="editcourse.php?sem=<?php
echo $sem;
?>
" method='post'>
<select name="mycourse" id='mycourses'>
<?php
// print out a select form to show the courses the student already registered in
$mycourses = myCourses($schedule, $sem);
foreach ($mycourses as $key => $value) {
echo "<option value='{$value}'>{$value}</option>";
}
?>
</select>
<input type="submit" value="Go!" name="submit">
</form>
<form action="timetable.php?sem=<?php
echo $sem;
?>
" id='purge' method='post'>
<input type="hidden" value="Purge" name="action">
<input type="submit" value="Remove all courses" name="submit">
</form>
<p>Filter Conflicts:
function displaySchedule($sched, $sem)
{
// get the chosen courses into a 2D array form
$data = arraySchedule($sched, $sem);
// dynamically generate the table in HTML
$schedule = "<table class='records' border='1' align='center' \n\t\t\t\tcellspacing='0' cellpadding='3'>\n\t\t\t\t<tr><th>Time<th>Mon<th>Tue<th>Wed<th>Thu<th>Fri</tr>";
// we want to format the table such that one course section taking multiple
// vertically consecutive cells will be shown as one huge cell spanning
// multiple rows. E.g. a course going from 6-9 on Monday would mean
// the cells for Monday 6-9 would be merged into one big cell.
// this variable is a 2D array. It tracks duplicates in each weekday column
// of the schedule (our $data array)
$last = array();
for ($i = 0; $i < count($data); $i++) {
list($Time, $Mon, $Tue, $Wed, $Thu, $Fri) = $data[$i];
// the 0th index of our 2D array is used for the schedule time indicator
// so we have to start from 1 when assigning keys
$arr = array(1 => $Mon, $Tue, $Wed, $Thu, $Fri);
$schedule .= "<tr>";
// convert the time to 12-hr form, and chop off trailing :00 (seconds)
if ($check && $i % 2 == 0) {
$Time = convertTime($Time);
// Don't want to show x:30 times. Make x:00 times span 2 rows
$schedule .= "<td rowspan='2'>{$Time}</td>";
} else {
if (!$check) {
$Time = convertTime($Time);
$schedule .= "<td>{$Time}</td>";
}
}
// this 2D array will track the size of each group of duplicates
// in each weekday column
$rowspan = array();
// initialize the duplicate group sizes to zero
foreach ($arr as $key => $value) {
$rowspan[$key] = 0;
}
// predefine 6 colours
$cols = array("F7E967", "A9CF54", "70B7BA", "45D99E", "A062DE", "DB9A37");
$mycourses = myCourses($sched, $sem);
if (count($mycourses)) {
$cols2 = array_slice($cols, 0, count($mycourses));
$colslist = array_combine($mycourses, $cols2);
}
// iterate through the schedule table and hunt for duplicates and adjust
// rowspan values where necessary
foreach ($arr as $key => $value) {
if ($value != "") {
// use only the 9-char course code, i.e. ABC123H1F as an index
// for the colour array
$name = substr($value, 0, CRSCODELEN);
for ($j = $i; $data[$j][$key] !== $last[$key] && $j < count($data) && $data[$j][$key] == $data[$i][$key]; $j++) {
$rowspan[$key]++;
}
if ($rowspan[$key] > 0) {
$last[$key] = $data[$i][$key];
// if there's no conflict, pick one of the 6 colours
if (strpos($value, "CONFLICT") === false) {
$schedule .= "<td bgcolor={$colslist[$name]} \n\t\t\t\t\t\t\t\t\trowspan='{$rowspan[$key]}'>" . $value . "</td>";
} else {
// colour the cell red if there's a conflict
$schedule .= "<td bgcolor='F1433F' \n\t\t\t\t\t\t\t\t\trowspan='{$rowspan[$key]}'>" . $value . "</td>";
}
}
} else {
// if the cell is blank, then it's blank!
$schedule .= "<td></td>";
}
}
$schedule .= "</tr>";
}
$schedule .= "</table>";
return $schedule;
}
