<?php

namespace app\admin\controller\mobile\course;

use app\common\controller\Backend;
use think\Db;
use fast\Tree;

/**
 * 课程目录管理
 *
 * @icon fa fa-circle-o
 */
class CourseCatalog extends Backend
{
    
    /**
     * CourseCatalog模型对象
     * @var \app\admin\model\mobile\course\CourseCatalog
     */
    protected $model = null;
    protected $cataloglist = [];

    public function _initialize()
    {
        parent::_initialize();
        $this->model = new \app\admin\model\mobile\course\CourseCatalog;
        $tree = Tree::instance();
        $tree->init(collection($this->model->where('course_id',$type = $this->request->request("course_id"))->order('weigh desc,id desc')->select())->toArray(), 'pid');
        $this->cataloglist = $tree->getTreeList($tree->getTreeArray(0), 'name');
        $catalogdata = [0 => ['name' => __('None')]];
        foreach ($this->cataloglist as $k => $v) {
            $catalogdata[$v['id']] = $v;
        }
        $this->view->assign("parentList", $catalogdata);
    }
    
    /**
     * 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()
    {
        //设置过滤方法
        $this->request->filter(['strip_tags']);
        if ($this->request->isAjax()) {
            $search = $this->request->request("search");

            //构造父类select列表选项数据
            $list = [];

            foreach ($this->cataloglist as $k => $v) {
                if ($search && stripos($v['name'], $search) !== false) {
                    $list[] = $v;
                } else {
                    $list = $this->cataloglist;
                }
            }

            $total = count($list);
            $result = array("total" => $total, "rows" => $list);

            return json($result);
        }
        return $this->view->fetch();
    }

    /**
     * 添加
     */
    public function add()
    {
        $course_id = $this->request->request('course_id');
        if ($this->request->isPost()) {
            $params = $this->request->post("row/a");
            if ($params) {
                $params = $this->preExcludeFields($params);

                if ($this->dataLimit && $this->dataLimitFieldAutoFill) {
                    $params[$this->dataLimitField] = $this->auth->id;
                }
                
                $params['course_id'] = $course_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;
                        $this->model->validateFailException(true)->validate($validate);
                    }
                    $result = $this->model->allowField(true)->save($params);
                    Db::commit();
                } catch (ValidateException $e) {
                    Db::rollback();
                    $this->error($e->getMessage());
                } catch (PDOException $e) {
                    Db::rollback();
                    $this->error($e->getMessage());
                } catch (Exception $e) {
                    Db::rollback();
                    $this->error($e->getMessage());
                }
                if ($result !== false) {
                    $this->success();
                } else {
                    $this->error(__('No rows were inserted'));
                }
            }
            $this->error(__('Parameter %s can not be empty', ''));
        }
        return $this->view->fetch();
    }

    /**
     * 编辑
     */
    public function edit($ids = null)
    {
        $row = $this->model->get($ids);
        if (!$row) {
            $this->error(__('No Results were found'));
        }
        $adminIds = $this->getDataLimitAdminIds();
        if (is_array($adminIds)) {
            if (!in_array($row[$this->dataLimitField], $adminIds)) {
                $this->error(__('You have no permission'));
            }
        }
        if ($this->request->isPost()) {
            $params = $this->request->post("row/a");
            if ($params) {
                $params = $this->preExcludeFields($params);

                if ($params['pid'] != $row['pid']) {
                    $childrenIds = Tree::instance()->init(collection(\app\admin\model\mobile\course\CourseCatalog::select())->toArray())->getChildrenIds($row['id'], true);
                    if (in_array($params['pid'], $childrenIds)) {
                        $this->error(__('父组别不能是它的子组别或它自己'));
                    }
                }

                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 . '.edit' : $name) : $this->modelValidate;
                        $row->validate($validate);
                    }
                    $result = $row->allowField(true)->save($params);
                    if ($result !== false) {
                        $this->success();
                    } else {
                        $this->error($row->getError());
                    }
                } catch (\think\exception\PDOException $e) {
                    $this->error($e->getMessage());
                } catch (\think\Exception $e) {
                    $this->error($e->getMessage());
                }
            }
            $this->error(__('Parameter %s can not be empty', ''));
        }
        $this->view->assign("row", $row);
        return $this->view->fetch();
    }
}