feat: add attendance export functionality for class sessions

app/Filament/Exports/AttendanceExport.php

@@ -0,0 +1,105 @@
+<?php
+
+namespace App\Filament\Exports;
+
+use App\Models\Attendance;
+use App\Models\ClassSession;
+use App\Models\Student;
+use Illuminate\Support\Collection;
+use Maatwebsite\Excel\Concerns\FromCollection;
+use Maatwebsite\Excel\Concerns\WithEvents;
+use Maatwebsite\Excel\Concerns\WithHeadings;
+use Maatwebsite\Excel\Concerns\WithMapping;
+use Maatwebsite\Excel\Concerns\WithStyles;
+use Maatwebsite\Excel\Events\AfterSheet;
+use PhpOffice\PhpSpreadsheet\Style\Alignment;
+use PhpOffice\PhpSpreadsheet\Worksheet\Worksheet;
+
+class AttendanceExport implements FromCollection, WithEvents, WithHeadings, WithMapping, WithStyles
+{
+    protected ClassSession $session;
+
+    protected Collection $activeStudents;
+
+    protected Collection $attendanceRecords;
+
+    public function __construct(ClassSession $session)
+    {
+        $session->load('course');
+        $this->session = $session;
+        $this->activeStudents = Student::whereHas('user', fn ($q) => $q->active())
+            ->orderBy('full_name')
+            ->get();
+
+        $this->attendanceRecords = Attendance::query()
+            ->whereHas('courseSchedule', function ($query) {
+                $query->where('course_id', $this->session->course_id);
+            })
+            ->whereDate('date', $this->session->date)
+            ->get()
+            ->keyBy('student_id');
+    }
+
+    public function collection()
+    {
+        return $this->activeStudents->map(fn ($student) => (object) [
+            'full_name' => $student->full_name,
+            'student_number' => $student->student_number,
+            'status' => $this->attendanceRecords->has($student->id) ? 'Hadir' : 'Alpa',
+            'attended_at' => $this->attendanceRecords->get($student->id)?->attended_at,
+        ]);
+    }
+
+    public function headings(): array
+    {
+        return [
+            ['Data Presensi '.($this->session->course?->name ?? '').' Sesi Ke-'.$this->session->session_number.' ('.$this->session->date?->translatedFormat('d F Y').')'],
+            ['Mahasiswa', 'NIM', 'Status', 'Waktu Presensi'],
+        ];
+    }
+
+    public function map($row): array
+    {
+        return [
+            $row->full_name,
+            $row->student_number,
+            $row->status,
+            $row->attended_at ? $row->attended_at->translatedFormat('d F Y H:i') : '-',
+        ];
+    }
+
+    public function styles(Worksheet $sheet)
+    {
+        return [
+            1 => [
+                'font' => ['bold' => true, 'size' => 14],
+                'alignment' => ['horizontal' => Alignment::HORIZONTAL_CENTER],
+            ],
+            2 => [
+                'font' => ['bold' => true],
+                'alignment' => ['horizontal' => Alignment::HORIZONTAL_CENTER, 'vertical' => Alignment::VERTICAL_CENTER],
+            ],
+        ];
+    }
+
+    public function registerEvents(): array
+    {
+        return [
+            AfterSheet::class => function (AfterSheet $event) {
+                $sheet = $event->sheet->getDelegate();
+                $lastColumn = $sheet->getHighestColumn();
+
+                $sheet->mergeCells("A1:{$lastColumn}1");
+
+                $sheet->getStyle("A2:{$lastColumn}".$sheet->getHighestRow())
+                    ->getAlignment()
+                    ->setVertical(Alignment::VERTICAL_TOP)
+                    ->setWrapText(true);
+
+                foreach (range('A', $lastColumn) as $columnID) {
+                    $sheet->getColumnDimension($columnID)->setAutoSize(true);
+                }
+            },
+        ];
+    }
+}

app/Filament/Resources/Learning/ClassSessions/Actions/ExportSessionAttendanceAction.php

@@ -0,0 +1,35 @@
+<?php
+
+namespace App\Filament\Resources\Learning\ClassSessions\Actions;
+
+use App\Filament\Exports\AttendanceExport;
+use App\Models\ClassSession;
+use Filament\Actions\Action;
+use Illuminate\Support\Str;
+use Maatwebsite\Excel\Facades\Excel;
+
+class ExportSessionAttendanceAction extends Action
+{
+    public static function getDefaultName(): ?string
+    {
+        return 'exportAttendance';
+    }
+
+    protected function setUp(): void
+    {
+        parent::setUp();
+
+        $this->label('Export Presensi')
+            ->color('success')
+            ->icon('heroicon-o-arrow-down-tray')
+            ->link()
+            ->action(function (array $arguments) {
+                $session = ClassSession::findOrFail($arguments['session']);
+                $courseName = $session->course?->name ?? '';
+
+                $filename = 'rekap-presensi-'.Str::slug($courseName).'-sesi-'.$session->session_number.'-'.$session->date?->toDateString().'.xlsx';
+
+                return Excel::download(new AttendanceExport($session), $filename);
+            });
+    }
+}

app/Filament/Resources/Learning/ClassSessions/Pages/ListCourseSessions.php

@@ -5,6 +5,7 @@
 use App\Filament\Actions\BackAction;
 use App\Filament\Resources\Learning\ClassSessions\Actions\DeleteSessionAction;
 use App\Filament\Resources\Learning\ClassSessions\Actions\EditSessionAction;
+use App\Filament\Resources\Learning\ClassSessions\Actions\ExportSessionAttendanceAction;
 use App\Filament\Resources\Learning\ClassSessions\Actions\GenerateSessionsAction;
 use App\Filament\Resources\Learning\ClassSessions\Actions\MarkAsSentAction;
 use App\Filament\Resources\Learning\ClassSessions\Actions\ShareAttendanceAction;
@@ -126,6 +127,11 @@ public function deleteSessionAction(): DeleteSessionAction
         return DeleteSessionAction::make();
     }
 
+    public function exportAttendanceAction(): ExportSessionAttendanceAction
+    {
+        return ExportSessionAttendanceAction::make();
+    }
+
     #[Computed]
     public function emptyStateHeading(): string
     {

composer.json

@@ -6,7 +6,7 @@
     "keywords": ["laravel", "framework"],
     "license": "MIT",
     "require": {
-        "php": "^8.3",
+        "php": "^8.2",
         "achyutn/filament-log-viewer": "^2.1",
         "asmit/filament-upload": "^2.0",
         "bezhansalleh/filament-shield": "^4.1",
@@ -18,6 +18,8 @@
         "joaopaulolndev/filament-pdf-viewer": "^3.0",
         "laravel/framework": "^12.0",
         "laravel/tinker": "^2.10.1",
+        "maatwebsite/excel": "^3.1",
+        "pxlrbt/filament-excel": "^3.6",
         "saade/filament-facehash": "^1.0"
     },
     "require-dev": {

resources/views/filament/resources/learning/class-sessions/show.blade.php

@@ -66,6 +66,7 @@ class="text-[10px] font-bold text-gray-500">{{ $session->attendance_percentage }
                         class="flex flex-wrap items-center gap-3 px-4 py-3 border-t border-gray-100 dark:border-gray-700">
                         {{ ($this->viewAttendanceAction)(['session' => $session->id]) }}
                         {{ ($this->shareAttendanceAction)(['session' => $session->id]) }}
+                        {{ ($this->exportAttendanceAction)(['session' => $session->id]) }}
                         {{ ($this->markAsSentAction)(['record' => $session->id]) }}
                         {{ ($this->editSessionAction)(['session' => $session->id]) }}
                         {{ ($this->deleteSessionAction)(['session' => $session->id]) }}