<?php

namespace app\admin\controller\app\exam;

use app\common\controller\Backend;
use think\Db;
/**
 * 练习分组
 * @icon fa fa-circle-o
 */
class ExercisesGroup extends Backend
{

    /**
     * GoodsGroup模型对象
     * @var \app\admin\model\app\score\GoodsGroup
     */
    protected $model = null;

    public function _initialize()
    {
        parent::_initialize();
        $this->model = new \app\admin\model\app\exam\ExercisesGroup;
        $this->exercisesModel = new \app\admin\model\app\exam\Exercises;
    }


    /**
     * 默认生成的控制器所继承的父类中有index/add/edit/del/multi五个基础方法、destroy/restore/recyclebin三个回收站方法
     * 因此在当前控制器中可不用编写增删改查的代码,除非需要自己控制这部分逻辑
     * 需要将application/admin/library/traits/Backend.php中对应的方法复制到当前控制器,然后进行修改
     */


    /**
     * 查看
     */
    public function index()
    {
        //当前是否为关联查询
        $this->relationSearch = false;
        //设置过滤方法
        $this->request->filter(['strip_tags', 'trim']);
        //如果发送的来源是Selectpage，则转发到Selectpage
        if ($this->request->request('keyField')) {
            return $this->selectpage();
        }
        list($where, $sort, $order, $offset, $limit) = $this->buildparams();

        $list = $this->model

            ->where($where)
            ->order($sort, $order)
            ->paginate($limit);

        $rows = $list->toArray();

        if(!empty($rows['data'])){
            foreach ($rows['data'] as &$item){
                $item['exam_count'] = $this->exercisesModel->where([
                    'group_id'=>$item['id']
                ])->count();
            }
        }


        $result = array("total" => $rows['total'], "rows" => $rows['data'],'attr'=>[
            'status'=>$this->model->getStatusList()
        ]);

        return $this->success("获取成功",$result);
    }

    /**
     * 添加
     *
     * @return string
     * @throws \think\Exception
     */
    public function add()
    {
        if (false === $this->request->isPost()) {
            return $this->view->fetch();
        }
        $params = $this->request->post('row/a');
        if (empty($params)) {
            $this->error(__('Parameter %s can not be empty', ''));
        }
        $params = $this->preExcludeFields($params);

        $params['uniacid'] = UNIACID;

        $params['sort'] = $this->model->defineSort();

        if ($this->dataLimit && $this->dataLimitFieldAutoFill) {
            $params[$this->dataLimitField] = $this->auth->id;
        }
        $result = false;
        Db::startTrans();
        try {
            //是否采用模型验证
            if ($this->modelValidate) {
                $name = str_replace("\\model\\", "\\validate\\", get_class($this->model));
                $validate = is_bool($this->modelValidate) ? ($this->modelSceneValidate ? $name . '.add' : $name) : $this->modelValidate;
                $this->model->validateFailException()->validate($validate);
            }
            $result = $this->model->allowField(true)->save($params);
            Db::commit();
        } catch (ValidateException|PDOException|Exception $e) {
            Db::rollback();
            $this->error($e->getMessage());
        }
        if ($result === false) {
            $this->error(__('No rows were inserted'));
        }
        $this->success("提交成功");
    }


    /**
     * 删除
     *
     * @param $ids
     * @return void
     * @throws DbException
     * @throws DataNotFoundException
     * @throws ModelNotFoundException
     */
    public function del($ids = null)
    {
        if (false === $this->request->isPost()) {
            $this->error(__("Invalid parameters"));
        }
        $ids = $ids ?: $this->request->post("ids");
        if (empty($ids)) {
            $this->error(__('Parameter %s can not be empty', 'ids'));
        }
        $pk = $this->model->getPk();
        $adminIds = $this->getDataLimitAdminIds();
        if (is_array($adminIds)) {
            $this->model->where($this->dataLimitField, 'in', $adminIds);
        }
        $list = $this->model->where($pk, 'in', $ids)->select();

        $count = 0;
        Db::startTrans();
        try {
            foreach ($list as $item) {
                $this->exercisesModel->where([
                    'group_id'=>$item['id']
                ])->update([
                    'group_id'=>''
                ]);
                $count += $item->delete();
            }
            Db::commit();
        } catch (PDOException|Exception $e) {
            Db::rollback();
            $this->error($e->getMessage());
        }
        if ($count) {
            $this->success("操作成功");
        }
        $this->error(__('No rows were deleted'));
    }


    /**
     * 设置排序
     * @param $id
     * @param $type
     * @return mixed
     */
    public function setSort($id,$type = 'up')
    {
        $self = $this->model->get($id);

        if(!$self){
            $this->error(__('No Results were found'));
        }

        $direction = $type == 'up' ? '<' : '>';
        $sort =  $type == 'up' ? 'desc' : 'asc';

        $brother = $this->model
            ->where('sort',$direction,$self['sort'])
            ->order('sort',$sort)
            ->find();

        if(!$brother){
            $this->error(__('无继续调节空间'));
        }

        $this->model->where([
            'id'=>$self['id']
        ])->update([
            'sort'=>$brother['sort']
        ]);

        $this->model->where([
            'id'=>$brother['id']
        ])->update([
            'sort'=>$self['sort']
        ]);

        return $this->success("操作成功");
    }
}