public function upload_save(Request $request)
{
$this->validate($request, ['excel' => 'required']);
$inputFileName = $request->excel;
try {
$inputFileType = PHPExcel_IOFactory::identify($inputFileName);
$objReader = PHPExcel_IOFactory::createReader($inputFileType);
$objPHPExcel = $objReader->load($inputFileName);
} catch (Exception $e) {
die('Error loading file "' . pathinfo($inputFileName, PATHINFO_BASENAME) . '": ' . $e->getMessage());
}
$sheet = $objPHPExcel->getSheet(0);
$highestRow = $sheet->getHighestRow();
$highestColumn = $sheet->getHighestColumn();
$start = false;
$data_count = 0;
$errors = 0;
$semester = Semester::get_active_semester()->id;
$id_siswa = null;
for ($row = 1; $row <= $highestRow; $row++) {
$rowData = $sheet->rangeToArray('A' . $row . ':' . $highestColumn . $row, NULL, TRUE, FALSE);
if (!$start) {
if ($rowData[0][0] == "1" || $rowData[0][0] == "1.") {
$start = true;
}
}
if ($start) {
if (empty($rowData[0][3]) || empty($rowData[0][4])) {
continue;
}
$data_count++;
$new = new Pkl();
if (!empty($rowData[0][1])) {
$siswa = Siswa::where('nis', $rowData[0][1])->first();
if (!$siswa) {
$errors++;
$id_siswa = null;
continue;
}
$id_siswa = $siswa->id;
} else {
if ($id_siswa == null) {
continue;
}
}
$created = null;
$check = Pkl::where('mitra', $rowData[0][3])->where('lokasi', $rowData[0][4])->where('id_siswa', $id_siswa)->where('id_semester', $semester);
$old = $check->first();
if ($old) {
$created = $old->created_at;
$check->delete();
}
$new = new Pkl();
$new->mitra = $rowData[0][3];
$new->lokasi = $rowData[0][4];
$new->lama = $rowData[0][5];
$new->keterangan = $rowData[0][6];
$new->id_siswa = $id_siswa;
$new->id_semester = $semester;
if ($created) {
$new->created_at = $created;
}
try {
$new->save();
} catch (\Illuminate\Database\QueryException $e) {
$errors++;
}
}
}
if (!$start) {
$message = "Tidak ada data ditemukan. Pastikan kolom nomor ada pada kolom A dan dimulai dengan angka 1.";
} else {
$message = "Upload file selesai. Terbaca ada {$data_count} data. ";
$message .= $errors > 0 ? "Ada masalah dengan {$errors} data, dan tidak dapat dimasukkan ke dalam database." : "Semua data berhasil ditambahkan.";
}
return redirect()->route('nilai.pkl')->with('message', $message);
}
