<?php
namespace App\Models;

use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\SoftDeletes;

class Question extends Model
{
    use SoftDeletes;

    protected $table = 'se_questions';

    protected $fillable = [
        'exercise_id',
        'content',
        'description',
        'group_id',
        'question_type_id',
        'level',
        'score',
        'answer',
        'explanation',
        'hint',
        'media_object_id',
    ];

    public function exercise()
    {
        return $this->belongsTo(Exercise::class, 'exercise_id');
    }

    public function group()
    {
        return $this->belongsTo(QuestionGroup::class, 'group_id');
    }

    public function type()
    {
        return $this->belongsTo(QuestionType::class, 'question_type_id');
    }

    public function choices()
    {
        return $this->hasMany(QuestionChoice::class, 'question_id');
    }

    public function blanks()
    {
        return $this->hasMany(QuestionBlank::class, 'question_id');
    }
}