How to resolve null return in Laravel query?

Question

Given my Models Person and Student. Now, one of my controller is doing this:

$person_id = \App\Models\Person::insertGetId(['name' => $request->name, ...]);
\App\Models\Student::create(['person_id' => $person_id, ...]);
$student = \App\Models\Student::where('person_id', $person_id)->first();
dd($student);

During execution, everything has been save but My problem is why i am receiving null on die and dump?

By the way, my student tables' primary and foreign key is the person_id column.

Edit

class Student extends Model
{
    protected $fillable = ['section', 'current_year'];//there are other attribute here which I didn't show because I am using mobile

    public function person(){
       return $this->belongsTo('App\Models\Person', 'person_id', 'id');
    }

    ...
}

So, to be clear, you save a person, and receive a person_id, you save a student, and he has this person_id, but you cannot find the student using this person_id? Are you sure your new student contains this person_id? — Techno
– Techno, Commented Apr 16, 2020 at 8:19
Yes, My student table has been populated with person_id. I don't know why I was not able to retrieve. — Alexander Paudak
– Alexander Paudak, Commented Apr 16, 2020 at 8:21

TsaiKoga · Accepted Answer · 2020-04-16 08:37:22Z

2

Add person_id in $fillable property:

protected $fillable = ['section', 'current_year', 'person_id'];

answered Apr 16, 2020 at 8:37

TsaiKoga

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