How to make autonumber restart every year in Laravel/PHP? - php

Question

I made code like this in Models Number_npe:
public function nomor_akhir()
{
$query = DB::table('nomor_npe')
->select('*')
->orderBy('id','DESC')
->first();
return $query;
}
Then the Controllers:
public function nomor_npe_store(Request $req)
{
$tanggal_npe = $req->input('tanggal_npe');
$pesan = new Nomor_npe();
$check = $pesan->nomor_akhir();
if($check) {
$nomor_npe = $check->nomor_npe+1;
}else{
$nomor_npe = 1;
}
DB::table('nomor_npe')->insert([
'nomor_npe' => $nomor_npe,
'tanggal_npe' => $tanggal_npe
]);
return redirect('nomor_npe')->with('success','Nomor NPE berhasil ditambahkan');
}
The Add NPE Number display looks like this:
When I click Save, the number_npe has been successfully added automatically.
But I want to make when the year changes, the number_npe restarts automatically from 1 again ... Please help everyone who knows

Answer 1

I have to write this as an answer, but it is not 100% an answer to your code, these are just tips for you to have better code. (So if anyone sees this too, they are aware too)
First of all, avoid 100% writing code in other language than English, as we are following it (we do not speak your language) and we do not understand nearly anything unless we use a Translator...
So, if you are going to use Laravel, try to avoid using DB, when you can just use the Model (hopefully you have created it...).
So your class should look like this:
public function lastNumber()
{
return NomorNpe::orderByDesc('id')->first();
}
Then your controller should be like:
public function store(Request $request, NomorNpe $nomor_npe)
{
NomorNpe::create([
'nomor_npe' => $nomor_npe->lastNumber() ? $nomor_npe->lastNumber()->nomor_npe + 1 : 1,
'tanggal_npe' => $request->input('tanggal_npe')
]);
return redirect('nomor_npe')->with('success', 'Nomor NPE berhasil ditambahkan');
}
See how I reduced everything from 13 lines of code to 5 lines of code and is 100% readable... (Or 9 lines to 2)
Make sure to use what Laravel brings you as "default" for it, use Models not DB::table('xxx'), take advantage of Eloquent.

Answer 2

Use this code for starting the number from 1, when the year changed:
public function nomor_npe_store(Request $req) {
$tanggal_npe = $req->input('tanggal_npe');
//---Current Date
$date = date('Y-m-d', time());
//---NOMOR NPE
$nomor_npe = DB('number_npe')->whereYear('tanggal_npe', $date)->max('normor_npe');
if (!$nomor_npe) {
$nomor_npe = 1;
} else {
$nomor_npe++;
}
DB::table('nomor_npe')->insert([
'nomor_npe' => $nomor_npe,
'tanggal_npe' => $tanggal_npe
]);
return redirect('nomor_npe')->with('success','Nomor NPE berhasil ditambahkan');
}