<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Model;

class Materi extends Model
{
    protected $table = 'materi';

    protected $fillable = [
        'guru_id',
        'mapel_id',
        'parent_id',
        'judul',
        'isi',
        'file',
    ];

public function mapel()
{
    return $this->belongsTo(Mapel::class);
}

    public function guru()
    {
        return $this->belongsTo(Guru::class);
    }

    public function parent()
    {
        return $this->belongsTo(Materi::class, 'parent_id');
    }

    public function children()
    {
        return $this->hasMany(Materi::class, 'parent_id');
    }

    public function tugas()
{
    return $this->hasMany(Tugas::class);
}
public function forumDiskusi()
{
    return $this->hasMany(\App\Models\ForumDiskusi::class);
}
public function guruMapel()
{
    return $this->belongsTo(\App\Models\GuruMapel::class);
}
// app/Models/Materi.php

public function kelas()
{
    return $this->belongsToMany(Kelas::class, 'kelas_materi', 'materi_id', 'kelas_id')
                ->withPivot('tanggal_terbit')
                ->withTimestamps();
}


}