初始化项目：添加后端代码、ThinkPHP框架、前端资源
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<?php
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namespace app\admin\controller\course;
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use app\common\controller\Backend;
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use think\Db;
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/**
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* 专栏内容绑定
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*
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* @icon fa fa-circle-o
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*/
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class Column extends Backend
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{
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/**
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* Column模型对象
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* @var \app\admin\model\course\Column
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*/
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protected $model = null;
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public function _initialize()
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{
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parent::_initialize();
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$this->model = new \app\admin\model\course\ColumnBind;
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$this->courseModel = new \app\admin\model\course\Course;
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}
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/**
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* 查看
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*/
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public function index()
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{
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//当前是否为关联查询
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$this->relationSearch = true;
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//设置过滤方法
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$this->request->filter(['strip_tags', 'trim']);
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//如果发送的来源是Selectpage，则转发到Selectpage
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if ($this->request->request('keyField')) {
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return $this->selectpage();
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}
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list($where, $sort, $order, $offset, $limit) = $this->buildparams();
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$list = $this->model
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->with(['bindcourse'])
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->where($where)
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->order("column_bind.sort asc, column_bind.createtime {$order}")
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->select();
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if(!empty($list)){
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foreach ($list as $index => &$item){
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if($item['type'] == 1){
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if($item['bindcourse']['id']){
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$item['bindcourse'] = $this->courseModel->structrue($item['bindcourse'],'decode');
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}else{
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unset($list[$index]);
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}
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}
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}
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//重新给数组排序
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$list = array_values($list);
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}
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return $this->success("获取成功",$list);
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}
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/**
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* 编辑
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* @param $ids
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* @return string
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* @throws DbException
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* @throws \think\Exception
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*/
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public function edit($ids = null)
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{
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$row = $this->model->get($ids);
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if (!$row) {
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$this->error(__('No Results were found'));
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}
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$adminIds = $this->getDataLimitAdminIds();
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if (is_array($adminIds) && !in_array($row[$this->dataLimitField], $adminIds)) {
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$this->error(__('You have no permission'));
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}
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$params = $this->request->post('row/a');
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if (empty($params)) {
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$this->error(__('Parameter %s can not be empty', ''));
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}
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if(isset($params['dir']) && $row['dir']!=$params['dir']){
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$params['sort'] = $this->model->defineSort($row['column_id'],$params['dir']);
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}
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$params = $this->preExcludeFields($params);
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$result = false;
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Db::startTrans();
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try {
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//是否采用模型验证
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if ($this->modelValidate) {
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$name = str_replace("\\model\\", "\\validate\\", get_class($this->model));
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$validate = is_bool($this->modelValidate) ? ($this->modelSceneValidate ? $name . '.edit' : $name) : $this->modelValidate;
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$row->validateFailException()->validate($validate);
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}
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$result = $row->allowField(true)->save($params);
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Db::commit();
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} catch (ValidateException|PDOException|Exception $e) {
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Db::rollback();
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$this->error($e->getMessage());
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}
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if (false === $result) {
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$this->error(__('No rows were updated'));
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}
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$this->success("提交成功");
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}
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/**
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* 分组绑定内容
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* @param $groupId
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* @param $courseIds
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* @return mixed
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*/
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public function columnBindCourse($columnId=null,$courseIds=null,$type=null,$title=null,$p_id=null){
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$courseIds = $courseIds ?: $this->request->post("course_ids/a");
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$columnId = $columnId ?: $this->request->post("column_id");
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$type = $type ?: $this->request->post("type",1);
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$title = $title ?: $this->request->post("title",'');
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$p_id = $p_id ?: $this->request->post("p_id",0);
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$this->model->setColumnBindCourse($columnId,$courseIds,$p_id,$type,$title);
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return $this->success("操作成功");
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}
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/**
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* 获取专栏绑定的内容ID
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* @param $columnId
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* @return mixed
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*/
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public function getBindCourseId($id = null){
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$id = $id ?: $this->request->post("id/a");
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$ids = $this->model->getBindCourseId($id);
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return $this->success("获取成功",$ids);
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}
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/**
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* 切换上下架
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* @param $ids
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* @param $status
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* @param $timing 是否为定时切换事件
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* @return void
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*/
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public function tryStatus($ids=null,$status=1){
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if (false === $this->request->isPost()) {
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$this->error(__("Invalid parameters"));
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}
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$ids = $ids ?: $this->request->post("ids");
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if (empty($ids)) {
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$this->error(__('Parameter %s can not be empty', 'ids'));
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}
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$status = $status ?: $this->request->post("status");
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$pk = $this->model->getPk();
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$adminIds = $this->getDataLimitAdminIds();
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if (is_array($adminIds)) {
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$this->model->where($this->dataLimitField, 'in', $adminIds);
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}
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$list = $this->model->where($pk, 'in', $ids)->select();
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$count = 0;
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Db::startTrans();
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try {
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foreach ($list as $item) {
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$row = [
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'try'=>$status
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];
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$this->model->where([
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'course_id'=>$item['course_id']
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])->update($row);
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$count++;
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}
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Db::commit();
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} catch (PDOException|Exception $e) {
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Db::rollback();
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$this->error($e->getMessage());
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}
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if ($count) {
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$this->success("操作成功");
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}
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$this->error(__('未操作任何数据'));
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}
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/**
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* 取消绑定
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* @param $groupId
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* @param $courseIds
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* @return void
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*/
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public function cancelBind($ids){
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if (false === $this->request->isPost()) {
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$this->error(__("Invalid parameters"));
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}
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$ids = $ids ?: $this->request->post("ids/a");
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//是否同步从课程列表中删除关联的课程（1=同时删除课程，0=仅从专栏目录中移除）
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$deleteCourse = (int)$this->request->post("delete_course", 0);
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if (empty($ids)) {
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$this->error(__('Parameter %s can not be empty', 'ids'));
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}
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$adminIds = $this->getDataLimitAdminIds();
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if (is_array($adminIds)) {
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$this->model->where($this->dataLimitField, 'in', $adminIds);
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}
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$list = $this->model->where('id','in', $ids)->whereOr('p_id','in',$ids)->select();
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//收集需要同步删除的课程ID（仅对实际绑定课程的目录项生效，目录节点 type!=1 跳过）
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$courseIdsToDelete = [];
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if ($deleteCourse && !empty($list)) {
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foreach ($list as $item) {
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if (isset($item['type']) && $item['type'] == 1 && !empty($item['course_id'])) {
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$courseIdsToDelete[] = (int)$item['course_id'];
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}
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}
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$courseIdsToDelete = array_values(array_unique($courseIdsToDelete));
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}
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$count = 0;
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Db::startTrans();
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try {
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foreach ($list as $item) {
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$count += $item->delete();
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}
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//同步删除课程
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if ($deleteCourse && !empty($courseIdsToDelete)) {
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$courseModel = new \app\admin\model\course\Course();
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$courseList = $courseModel->where('id', 'in', $courseIdsToDelete)->select();
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foreach ($courseList as $courseItem) {
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$courseItem->delete();
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}
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}
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Db::commit();
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} catch (PDOException|Exception $e) {
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Db::rollback();
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$this->error($e->getMessage());
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}
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//清理课程相关缓存
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\app\common\library\cache\Clear::course();
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if ($count) {
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$this->success("操作成功");
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}
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$this->error(__('未移除任何数据'));
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}
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/**
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* 设置排序
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* @param $id
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* @param $type
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* @return mixed
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*/
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public function setSort($id,$type = 'up',$p_id = 0)
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{
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$self = $this->model->get($id);
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if(!$self){
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$this->error(__('No Results were found'));
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}
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$direction = $type == 'up' ? '<' : '>';
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$sort = $type == 'up' ? 'desc' : 'asc';
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$brother = $this->model->where(['column_id'=>$self['column_id'],'p_id'=>$p_id])
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->where('sort',$direction,$self['sort'])
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->order('sort',$sort)
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->find();
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if(!$brother){
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$this->error(__('无继续调节空间'));
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}
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$this->model->where([
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'id'=>$self['id']
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])->update([
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'sort'=>$brother['sort']
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]);
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$this->model->where([
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'id'=>$brother['id']
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])->update([
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'sort'=>$self['sort']
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]);
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return $this->success("操作成功");
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}
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/**
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* 批量设置排序（拖拽排序）
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* @param $sortList 排序数据数组，每项包含 id 和 sort
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* @return mixed
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*/
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public function batchSort()
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{
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$sortList = $this->request->post("sort_list/a");
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if (empty($sortList)) {
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$this->error(__('Parameter %s can not be empty', 'sort_list'));
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}
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$count = 0;
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Db::startTrans();
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try {
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foreach ($sortList as $item) {
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if (!isset($item['id']) || !isset($item['sort'])) {
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continue;
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}
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$this->model->where([
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'id' => $item['id']
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])->update([
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'sort' => $item['sort']
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]);
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$count++;
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}
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Db::commit();
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} catch (PDOException|Exception $e) {
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Db::rollback();
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$this->error($e->getMessage());
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}
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if ($count) {
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return $this->success("操作成功");
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}
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$this->error(__('未操作任何数据'));
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}
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}
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