<?php
namespace App\Models;

use Illuminate\Database\Eloquent\Model;

class ExamPaperModel extends BaseModel
{
    protected $table = 'exam_papers';
    public $timestamps = false;
    protected $guarded = [];
    protected $fillable = [
        'type',
        'name',
        'scene_type',
        'subject_id',
        'score_total',
        'topic_count',
        'is_charge',
        'status',
        'sort',
        'remark',
        'mark',
        'create_time'
    ];

    /**
     * 最新答题数据
     * @return \Illuminate\Database\Eloquent\Relations\HasOne
     */
    public function answer()
    {
        return $this->hasOne(ExamAnswerModel::class, 'paper_id', 'id')
            ->where(['status' => 1, 'mark' => 1])
            ->select(['id', 'score', 'accurate_count','user_id', 'answer_times', 'answer_count', 'is_submit'])
            ->orderBy('create_time','desc');
    }
}