add controllers, servoices
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<?php
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namespace App\Services\Grading;
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use App\Models\Configuration;
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use Illuminate\Support\Facades\DB;
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class HomeworkTrackingService
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{
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private array $teacherAssignmentCache = [];
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public function __construct(private HomeworkTrackingCalendarService $calendarService)
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{
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}
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public function report(?string $semester = null, ?string $schoolYear = null, int $page = 1): array
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{
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$semester = $semester ?: (string) (Configuration::getConfig('semester') ?? '');
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$schoolYear = $schoolYear ?: (string) (Configuration::getConfig('school_year') ?? '');
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[$start, $end] = $this->calendarService->buildDateRange($schoolYear, $semester);
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$sundays = $this->calendarService->buildSundays($start, $end);
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$eventDays = $this->calendarService->eventDays($schoolYear);
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$dateToIndex = $this->calendarService->dateToIndex($sundays, $eventDays);
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$limitToSemester = $this->hasTeacherAssignments($schoolYear);
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$homeworkByIndex = $this->loadHomeworkByIndex($schoolYear, $semester, $limitToSemester);
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$homeworkByDate = $this->loadHomeworkByDate($schoolYear, $semester, $limitToSemester, $sundays, $eventDays);
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$teachers = $this->loadTeachers($schoolYear);
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$perPage = 8;
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$totalRows = count($teachers);
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$totalPages = max(1, (int) ceil($totalRows / $perPage));
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$page = max(1, min($page, $totalPages));
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$offset = ($page - 1) * $perPage;
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$teachersPage = array_slice($teachers, $offset, $perPage);
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return [
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'semester' => $semester,
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'school_year' => $schoolYear,
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'sundays' => $sundays,
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'event_days' => $eventDays,
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'date_to_index' => $dateToIndex,
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'teachers' => $teachersPage,
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'has_homework' => $homeworkByIndex['has_homework'],
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'hw_entered_at' => $homeworkByIndex['entered_at'],
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'has_homework_by_date' => $homeworkByDate['has_homework'],
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'hw_entered_at_by_date' => $homeworkByDate['entered_at'],
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'page' => $page,
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'total_pages' => $totalPages,
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'per_page' => $perPage,
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'total_rows' => $totalRows,
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];
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}
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private function hasTeacherAssignments(string $schoolYear): bool
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{
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$year = trim((string) $schoolYear);
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if ($year === '') {
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return false;
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}
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if (array_key_exists($year, $this->teacherAssignmentCache)) {
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return $this->teacherAssignmentCache[$year];
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}
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$cnt = DB::table('teacher_class')->where('school_year', $year)->count();
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$this->teacherAssignmentCache[$year] = $cnt > 0;
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return $this->teacherAssignmentCache[$year];
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}
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private function loadHomeworkByIndex(string $schoolYear, string $semester, bool $limitToSemester): array
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{
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$query = DB::table('homework')
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->select('class_section_id', 'homework_index', DB::raw('MIN(created_at) as first_created'), DB::raw('COUNT(*) as cnt'))
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->where('school_year', $schoolYear);
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if ($limitToSemester && $semester !== '') {
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$query->where('semester', $semester);
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}
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$rows = $query->groupBy('class_section_id', 'homework_index')->get();
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$hasHomework = [];
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$enteredAt = [];
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foreach ($rows as $row) {
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$csid = (int) $row->class_section_id;
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$hi = (int) $row->homework_index;
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$cnt = (int) $row->cnt;
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if ($csid > 0 && $hi > 0 && $cnt > 0) {
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$hasHomework[$csid][$hi] = true;
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$dateStr = substr((string) ($row->first_created ?? ''), 0, 10);
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$enteredAt[$csid][$hi] = $dateStr ?: null;
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}
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}
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return ['has_homework' => $hasHomework, 'entered_at' => $enteredAt];
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}
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private function loadHomeworkByDate(string $schoolYear, string $semester, bool $limitToSemester, array $sundays, array $eventDays): array
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{
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$query = DB::table('homework')
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->select(DB::raw('class_section_id, DATE(created_at) as hw_date, MIN(created_at) as first_created, COUNT(*) as cnt'))
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->where('school_year', $schoolYear);
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if ($limitToSemester && $semester !== '') {
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$query->where('semester', $semester);
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}
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$rows = $query
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->groupBy('class_section_id', DB::raw('DATE(created_at)'))
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->orderBy('hw_date', 'ASC')
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->get();
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$hasHomework = [];
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$enteredAt = [];
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foreach ($rows as $row) {
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$csid = (int) $row->class_section_id;
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$date = substr((string) ($row->hw_date ?? ''), 0, 10);
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$cnt = (int) $row->cnt;
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$firstCreated = substr((string) ($row->first_created ?? ''), 0, 10);
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if ($csid <= 0 || !$date || $cnt <= 0) {
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continue;
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}
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$baseIndex = -1;
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for ($i = count($sundays) - 1; $i >= 0; $i--) {
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if ($sundays[$i] <= $date) {
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$baseIndex = $i;
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break;
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}
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}
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if ($baseIndex < 0) {
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continue;
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}
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$j = $baseIndex;
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while ($j >= 0 && !empty($eventDays[$sundays[$j]])) {
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$j--;
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}
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if ($j < 0) {
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continue;
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}
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$sunday = $sundays[$j];
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$hasHomework[$csid][$sunday] = true;
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$candidate = $firstCreated ?: $date;
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if (empty($enteredAt[$csid][$sunday]) || ($candidate && $candidate < $enteredAt[$csid][$sunday])) {
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$enteredAt[$csid][$sunday] = $candidate;
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}
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}
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return ['has_homework' => $hasHomework, 'entered_at' => $enteredAt];
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}
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private function loadTeachers(string $schoolYear): array
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{
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$rows = DB::table('teacher_class as tc')
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->select('tc.class_section_id', 'tc.position', 'cs.class_section_name', 'cs.class_id', 'u.firstname', 'u.lastname')
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->leftJoin('classSection as cs', 'cs.class_section_id', '=', 'tc.class_section_id')
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->leftJoin('users as u', 'u.id', '=', 'tc.teacher_id')
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->where('tc.school_year', $schoolYear)
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->whereNotNull('tc.class_section_id')
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->whereIn('tc.position', ['main', 'ta'])
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->orderBy('cs.class_id', 'ASC')
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->orderBy('cs.class_section_name', 'ASC')
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->orderByRaw("FIELD(tc.position, 'main','ta')")
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->orderBy('u.firstname', 'ASC')
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->get();
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$bySection = [];
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foreach ($rows as $row) {
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$sid = (int) $row->class_section_id;
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if ($sid <= 0) {
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continue;
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}
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if (!isset($bySection[$sid])) {
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$bySection[$sid] = [
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'class_section_id' => $sid,
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'class_id' => (int) ($row->class_id ?? 0),
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'class_section_name' => (string) ($row->class_section_name ?? ''),
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'teachers' => [],
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'tas' => [],
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];
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}
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$name = trim((string) ($row->firstname ?? '') . ' ' . (string) ($row->lastname ?? ''));
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$pos = strtolower((string) ($row->position ?? ''));
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if ($name !== '') {
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if ($pos === 'main') {
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$bySection[$sid]['teachers'][] = $name;
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} elseif ($pos === 'ta') {
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$bySection[$sid]['tas'][] = $name;
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}
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}
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}
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$teachers = array_values($bySection);
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usort($teachers, function ($a, $b) {
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$ai = (int) ($a['class_id'] ?? 0);
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$bi = (int) ($b['class_id'] ?? 0);
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$order = function (int $cid): int {
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if ($cid === 13) return 0;
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if ($cid >= 1 && $cid <= 11) return $cid;
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if ($cid === 12) return 99;
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return 200 + $cid;
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};
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$cmp = $order($ai) <=> $order($bi);
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if ($cmp !== 0) {
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return $cmp;
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}
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return strnatcasecmp($a['class_section_name'] ?? '', $b['class_section_name'] ?? '');
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});
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return $teachers;
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}
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}
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