weapp-api/app/Models/Note.php

<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Model;

class Note extends Model
{
    protected $table='notes';

    public function get_notes(){
        return $this->hasMany(Note::class,'user_id','user_id');
    }

    public function note_like(){
        return $this->hasOne(NoteLike::class,'note_id');
    }

    public function get_user(){
        return $this->hasOne(User::class,'id','user_id');
    }
}