<?php

namespace wstmart\admin\model;

/**

 * ============================================================================

 * 文章分类业务处理

 */

use think\Db;

class ArticleCats extends Base{

	/**

	 * 获取树形分类

	 */

	public function pageQuery(){

		$parentId = input('catId/d',0);

		$data = $this->where(['dataFlag'=>1,'parentId'=>$parentId])->order('catId desc')->paginate(1000)->toArray();

		return $data;

	}

	/**

	 * 获取列表

	 */

	public function listQuery($parentId){

		$rs = $this->where(['dataFlag'=>1,'parentId'=>$parentId])->order('catSort asc,catName asc')->select();

		if(count($rs)>0){

			foreach ($rs as $key => $v){

				$rs[$key]['childrenurl'] = url('admin/articlecats/listQuery',array('parentId'=>$v['catId']));

				$rs[$key]['children'] = [];

				$rs[$key]['isextend'] = false;

			}

		}

		return $rs;

	}

	/**

	 * 获取指定对象

	 */

	public function getById($id){

		return $this->get(['dataFlag'=>1,'catId'=>$id]);

	}

	

	/**

	 *  获取文章分类列表

	 */

	public function listQuery2(){

		$id = (int)input('id');

		return $this->where(['dataFlag'=>1,'isShow'=>1,'parentId'=>$id])->field('catId as id,catName as name,parentId as pId, 1 as isParent')->order('catSort desc')->select();

	}

	/**

	 * 修改分类名称

	 */

	public function editName(){

		if(input('catName')=='')return WSTReturn("操作失败，商品分类名称不能为空");

		$id = (int)input('id');

		$result = $this->where("catId = ".$id)->update(['catName' => input('catName')]);

		if(false !== $result){

			WSTClearAllCache();

			return WSTReturn("操作成功", 1);

		}else{

			return WSTReturn($this->getError(),-1);

		}



	}

	

	/**

	 * 显示是否显示/隐藏

	 */

	public function editiIsShow(){

		$ids = array();

		$id = input('post.id/d');

		$ids = $this->getChild($id);

		$isShow = input('post.isShow/d')?1:0;

		$result = $this->where("catId in(".implode(',',$ids).")")->update(['isShow' => $isShow]);

		if(false !== $result){

			WSTClearAllCache();

			return WSTReturn("操作成功", 1);

		}else{

			return WSTReturn($this->getError(),-1);

		}

	}

	

	/**

	 * 迭代获取下级

	 * 获取一个分类下的所有子级分类id

	 */

	public function getChild($pid=1){

		$data = $this->where("dataFlag=1")->select();

		//获取该分类id下的所有子级分类id

		$ids = $this->_getChild($data, $pid, true);//每次调用都清空一次数组

		//把自己也放进来

		array_unshift($ids, $pid);

		return $ids;

	}

	public function _getChild($data, $pid, $isClear=false){

		static $ids = array();

		if($isClear)//是否清空数组

			$ids = array();

		foreach($data as $k=>$v)

		{

			if($v['parentId']==$pid && $v['dataFlag']==1)

			{

				$ids[] = $v['catId'];//将找到的下级分类id放入静态数组

				//再找下当前id是否还存在下级id

				$this->_getChild($data, $v['catId']);

			}

		}

		return $ids;

	}

	

	/**

	 * 新增

	 */

	public function add(){

		$parentId = input('post.parentId/d');

		$data = input('post.');

		WSTUnset($data,'catId,catType,dataFlag');

		$data['parentId'] = $parentId;

		$data['createTime'] = date('Y-m-d H:i:s');

		$result = $this->validate('ArticleCats.add')->allowField(true)->save($data);

		if(false !== $result){

			WSTClearAllCache();

			return WSTReturn("新增成功", 1);

		}else{

			return WSTReturn($this->getError(),-1);

		}

	}

	

	/**

	 * 编辑

	 */

	public function edit(){

		$catId = input('post.id/d');

		$result = $this->validate('ArticleCats.edit')->allowField(['catName','isShow','catSort'])->save(input('post.'),['catId'=>$catId]);

		$ids = array();

		$ids = $this->getChild($catId);

		$this->where("catId in(".implode(',',$ids).")")->update(['isShow' => input('post.')['isShow']]);

		if(false !== $result){

			WSTClearAllCache();

			return WSTReturn("修改成功", 1);

		}else{

			return WSTReturn($this->getError(),-1);

		}

	}

	

	/**

	 * 删除

	 */

	public function del(){

		$ids = array();

		$id = input('post.id/d');

		$ids = $this->getChild($id);

		$data = [];

		$data['dataFlag'] = -1;

		$rs = $this->getById($id);

		if($rs['catType']==1){

			return WSTReturn("不能删除该分类", -1);

		}else{

			Db::startTrans();

            try{

				$result = $this->where("catId in(".implode(',',$ids).")")->update($data);

				if(false !==$result){

					WSTClearAllCache();

					Db::name('articles')->where(['catId'=>['in',$ids]])->update(['dataFlag'=>-1]);

				}

				Db::commit();

	            return WSTReturn("删除成功", 1);

            }catch (\Exception $e) {

                Db::rollback();errLog($e);

                return WSTReturn('删除失败',-1);

            }

		}

	}

}