<?php

namespace app\admin\model\app\exam;

use think\Model;


class ExercisesBindWarehouseGroup extends Model
{

    
    // 表名
    protected $name = 'app_exam_exercises_bind_warehouse_group';
    
    // 自动写入时间戳字段
    protected $autoWriteTimestamp = 'integer';

    // 定义时间戳字段名
    protected $createTime = 'createtime';
    protected $updateTime = false;
    protected $deleteTime = false;

    // 追加属性
    protected $append = [

    ];
    
    
    public function group()
    {
        return $this->belongsTo('app\admin\model\app\exam\WarehouseGroup', 'warehouse_group_id', 'id', [], 'LEFT')->setEagerlyType(0);
    }


    public function exercises()
    {
        return $this->belongsTo('Exercises', 'exercises_id', 'id', [], 'LEFT')->setEagerlyType(0);
    }


    /**
     * 通过练习ID绑定题库分组
     * @param $exercisesId
     * @param $groupIds
     * @return bool
     */
    public static function exercisesBindWarehouseGroup($exercisesId,$groupIds){
        self::where([
            'exercises_id'=>$exercisesId,
            'uniacid'=>UNIACID
        ])->delete();

        if($groupIds){
            foreach ($groupIds as $itemId){
                self::insert([
                    'exercises_id'=>$exercisesId,
                    'uniacid'=>UNIACID,
                    'warehouse_group_id'=>$itemId,
                    'createtime'=>time()
                ]);
            }
        }

        return true;

    }
}