ErrorException Trying to get property of non-object laravel - php

Question

umm hello.
Im new in laravel and i want to create a program for list of workers.
I'm trying to access this route:
http://127.0.0.1:8000/posts/create
and there's error message.
ErrorException
Trying to get property '{"role":"pegawai","name":"asdasdasdasd1","email":"1asdad#ifocaproject.com","updated_at":"2020-05-11T18:26:31.000000Z","created_at":"2020-05-11T18:26:31.000000Z","id":7}' of non-object
this is my controller.
public function create(Request $request)
{
$user = new \App\User;
$user->role = 'pegawai';
$user->name = $request['nama_pegawai'];
$user->email = $request['email'];
$user->password = bcrypt('rahasia');
$user->remember_token = Str::random(60);
$user->save();
$request ->request->add(['user_id'-> $user->id]);
$pegawai = \App\Pegawai::create($request->all());
return redirect('/pegawai')->with('sukses','Data Berhasil Di-input');
}
and this is my blade.
<div class="modal-body">
<form action="/pegawai/create" method="POST">
{{ csrf_field() }}
<div class="form-group">
<label for="exampleFormControlInput1">Nama Pegawai</label>
<input name="nama_pegawai" type="text" class="form-control"
id="exampleFormControlInput1" placeholder="Joni">
</div>
<div class="form-group">
<label for="exampleFormControlInput1">Email</label>
<input name="email" type="text" class="form-control"
id="exampleFormControlInput1" placeholder="eve#ifocaprojec.com">
</div>
<div class="form-group">
<label for="exampleFormControlSelect1">Jenis Kelamin</label>
<select name="jenis_kelamin" class="form-control" id="exampleFormControlSelect1">
<option value="Laki-Laki">Laki-laki</option>
<option value="Perempuan">Perempuan</option>
<option value="-none-">-none-</option>
</select>
</div>
<div class="form-group">
<label for="exampleFormControlInput1">Umur</label>
<input name="umur" type="text" class="form-control" placeholder="Cth:21">
</div>
<div class="form-group">
<label for="exampleFormControlInput1">Agama</label>
<input name="agama" type="text" class="form-control" placeholder="Cth:Islam">
</div>
<div class="form-group">
<label for="exampleFormControlTextarea1">Alamat</label>
<textarea name="alamat" class="form-control" rows="3"></textarea>
</div>
<div class="form-group">
<label for="exampleFormControlSelect1">Divisi</label>
<select name="divisi" class="form-control">
<option value="Inbound">Inbound</option>
<option value="Outbound">Outbound</option>
</select>
</div>
</div>
table user:
table pegawai:
What Am I missing? Any help would be greatly appreciated, Thanks.
And I'm sorry, I'm not very good at English.

Answer 1

You may have typo in code.
Here it must be => instead of ->:
$request->request->add(['user_id' => $user->id]);

Answer 2

I believe you need to reload data from DB after ->save():
.......
$user->save();
$request ->request->add(['user_id'-> $user->fresh()->id]);