/**
* Create an array of info on a particular class of a particular year.
*/
function pullClass($class, $year = false, $classterm = 0, $override = false, $substitute = '')
{
$row = CourseRoadDB::getBestClassInfo($class, $year);
if (!$row) {
return array('error' => true, 'errorDesc' => 'No class');
}
// Some returned columns are unhelpful and are thus discarded.
unset($row['id']);
unset($row['design_units']);
unset($row['tuition_attr']);
unset($row['supervisor_attr']);
unset($row['hgn_code']);
unset($row['hgn_except']);
unset($row['last_modified']);
unset($row['notes']);
unset($row['exception']);
// Format assorted other rows. While classes are usually considered as "8.01",
// it's easier to keep refer to them as "8_01" [for classes, etc.]
$row['id'] = str_replace('.', '_', $row['subject_id']);
$row['divid'] = $row['id'] . '__' . rand();
$row['is_variable_units'] = !!$row['is_variable_units'];
$row['offered_this_year'] = !!$row['offered_this_year'];
$row['fall'] = !!$row['fall'];
$row['iap'] = !!$row['iap'];
$row['spring'] = !!$row['spring'];
$row['summer'] = !!$row['summer'];
$row['permission'] = strpos($row['reqs'], 'Permission') !== false;
$row['reqs'] = json_decode($row['reqs']);
$reqs = $row['reqs'] ? 'Reqs: [X]' : 'No reqs :D';
if ($row['reqstr']) {
$row['reqstr'] = 'Requisites: ' . $row['reqstr'] . '<br>';
}
$row['total_units'] = floatval($row['total_units']);
// Occasionally, the Warehouse tries to say that a class has 0 units. Since
// that doesn't make much sense, default these exceptions to 12 units.
$default_unit_count = 12;
if (!$row['total_units']) {
$row['total_units'] = $default_unit_count;
}
// Build the class' HTML for the info box when it's selected.
$row['info'] = makeClassInfoHTML($row);
// Each class added to the page is a div; this string holds the space-
// separated classes added to that div. (Apologies on the overloading of the
// word "class".)
$row['divclasses'] = 'classdiv bubble ' . $row['id'];
// Joint subjects at MIT are labelled with a J suffix. This trims that off.
$row['joint_subjects'] = explode(', ', $row['joint_subjects']);
foreach ($row['joint_subjects'] as &$subj) {
$subj = rtrim($subj, 'J');
}
if (!$row['joint_subjects'][0]) {
$row['joint_subjects'] = false;
}
$row['equiv_subjects'] = explode(', ', $row['equiv_subjects']);
foreach ($row['equiv_subjects'] as &$subj) {
$subj = rtrim($subj, 'J');
}
if (!$row['equiv_subjects'][0]) {
$row['equiv_subjects'] = false;
}
if ($row['joint_subjects']) {
$joint_subjects_classes = implode(' ', $row['joint_subjects']);
$joint_subjects_classes = str_replace('.', '_', $joint_subjects_classes);
$row['divclasses'] .= ' ' . $joint_subjects_classes;
}
if ($row['gir'] && $row['gir'][0] === 'H') {
$row['gir'] = '';
}
if ($row['gir']) {
$row['divclasses'] .= ' GIR ' . $row['gir'];
}
if ($row['ci']) {
$row['divclasses'] .= ' CI ' . $row['ci'];
}
if ($row['hass']) {
$row['divclasses'] .= ' HASS ' . $row['hass'];
}
// Extraclasses handles cases where a class universally also counts for
// something else, like 18.100B and 18.100. This is set manually in the
// warehouse_exceptions table.
if ($row['extraclasses']) {
$row['divclasses'] .= ' ' . str_replace('.', '_', $row['extraclasses']);
}
$row['special'] = $row['gir'] || $row['ci'] || $row['hass'];
$row['classterm'] = $classterm;
$row['override'] = $override;
$row['substitute'] = $substitute;
$row['custom'] = false;
// year = 2013 --> year_range = '12-'13
$row['year_range'] = "'" . substr($row['year'] - 1, -2) . "-'" . substr($row['year'], -2);
// year_desired holds the year the class attempted to match. This allows for
// classes which will be in the '14-'15 cycle to be defined now with '13-'14,
// but should '14-'15 become available, that version with be loaded instead.
// Thus, year_desired holds the user's desired year.
$row['year_desired'] = $year ? $year : date('Y') + (date('m') > 3);
// Generate HTML for a dropdown list of the other offered years
$row['otheryears'] = makeYearsOfferedHTML($row['subject_id'], $row['year']);
$row['yearspan'] = '<span title="The data for this class is from the ' . $row['year_range'] . ' version of the subject. Click to use another year\'s version." ' . 'href="#" class="dummylink">' . $row['year_range'] . '</span>';
// $row['div'] actually stores the HTML of the class bubble.
$row['div'] = <<<EOD
<div id="{$row['divid']}" class="{$row['divclasses']}">
<div class="classdivlabel">
<div class="classdivcourse">{$row['subject_id']}: </div>
<div class="classdivtitle" title="{$row['subject_title']}">
{$row['subject_title']}
</div>
</div>
<div class="classdivinfo">
<div class="classdivyear">{$row['yearspan']}</div>
<div class="reqs">{$reqs}</div>
</div>
</div>
EOD;
return $row;
}
