laravel excel import update only if there is a change - laravel

Question

i have laravel excel maatwebsite import update function, it works really well but i want to mark record that change by add "correction_flag" variable. the question is, how can i set this "correction_flag" when import.
this is my import function:
public function collection(Collection $rows)
{
foreach ($rows as $row)
{
$tgl_lahir_cell = $this->transformDate($row['tanggal_lahir']);
$tgl_awal_masa_kerja_cell = $this->transformDate($row['tanggal_awal_masa_kerja']);
$tgl_menjadi_permanen_cell = $this->transformDate($row['tanggal_menjadi_permanen']);
$tgl_keluar_cell = $this->transformDate($row['tanggal_keluar']);
if($tgl_lahir_cell == '1970-01-01') {
$formatedDate1 = NULL;
}else{
$formatedDate1 = $tgl_lahir_cell;
}
if($tgl_awal_masa_kerja_cell == '1970-01-01') {
$formatedDate2 = NULL;
}else{
$formatedDate2 = $tgl_awal_masa_kerja_cell;
}
if($tgl_menjadi_permanen_cell == '1970-01-01') {
$formatedDate3 = NULL;
}else{
$formatedDate3 = $tgl_menjadi_permanen_cell;
}
if($tgl_keluar_cell == '1970-01-01') {
$formatedDate4 = NULL;
}else{
$formatedDate4 = $tgl_keluar_cell;
}
Tempdat::where('cc', Auth::user()->ccode)
->where('id_tempdat', $row['id_tempdat'])
->update([
'golongan' => $row['golongan'],
'nama' => $row['nama'],
'jenis_kelamin' => $row['jenis_kelamin'],
'tgl_lahir' => $formatedDate1,
'tgl_awal_masa_kerja' => $formatedDate2,
'tgl_menjadi_permanen' => $formatedDate3,
'status_awal' => $row['status_di_awal_periode'],
'gaji_pokok_awal' => $row['gaji_pokok_di_awal_periode'],
'tunjangan_tetap_awal' => $row['tunjangan_tetap_di_awal_periode'],
'total_upah_awal' => $row['total_upah_di_awal_periode'],
'status_akhir' => $row['status_di_akhir_periode'],
'tgl_keluar' => $formatedDate4,
'status2_akhir' => $row['keterangan_keluar'],
'gaji_pokok_akhir' => $row['gaji_pokok_di_akhir_periode'],
'tunjangan_tetap_akhir' => $row['tunjangan_tetap_di_akhir_periode'],
'total_upah_akhir' => $row['total_upah_di_akhir_periode'],
'jumlah_pesangon_paid_awal' => $row['pesangon_dibayarkan_pada_periode'],
'correction_flag' => 'CORRECTED'
]);
}
}
public function headingRow(): int
{
return 4;
}
public function startRow(): int
{
return 5;
}
i already tried to put correction_flag like the example above but its just make all record uploaded marked CORRECTED eventhou there is no changes happend.

Answer 1

You need to first() the query, because laravel model event listeners won't work if there's mass update/create. So what you need to do is:
$tempdat = Tempdat::where('cc', Auth::user()->ccode)->where('id_tempdat', $row['id_tempdat'])->first();
if($tempdat){
$tempdat->update([
...
]);
}
And add this function to your Temptdat model:
protected static function booted()
{
parent::boot();
self::saving(function ($model) {
if ($model->isDirty()) {
$model->correction_flag = 'CORRECTED';
}
});
}