DelController.class.php
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<?php
/**
* DelController.class.php
* 删除话题
* User: 代军
* Date: 2017-04-24
*/
namespace Apicp\Controller\Topic;
use Common\Common\AttachOperation;
use Common\Common\Constant;
use Common\Common\DataCenter;
use Common\Service\AttachmentService;
use Common\Service\CircleService;
use Common\Service\LikeService;
class DelController extends AbstractController
{
/**
* @var CircleService 帖子信息表
*/
protected $_circle_serv;
/**
* @var AttachmentService 附件图片信息表
*/
protected $_attach_serv;
/**
* @var LikeService 帖子及评论点赞信息表
*/
protected $_like_serv;
public function before_action($action = '')
{
if (!parent::before_action($action)) {
return false;
}
// 实例化帖子信息表
$this->_circle_serv = new CircleService();
// 实例化帖子附件信息表
$this->_attach_serv = new AttachmentService();
// 实例化帖子点赞信息表
$this->_like_serv = new LikeService();
return true;
}
public function Index_post()
{
// 接收参数
$params = I('post.');
// 参数验证
if (empty($params['list']) || !is_array($params['list'])) {
$this->_set_error('_EMPTY_DATALIST');
return false;
}
// 将列表转换成ID集合（一维数组）
$ids = array_column($params['list'], 'id');
if (empty($ids)) {
$this->_set_error('_EMPTY_DATALIST');
return false;
}
// 查询话题的回帖评论数据
$topic_comment_list = $this->_circle_serv->list_by_conds(
[
'pid' => $ids,
'type' => Constant::CIRCLE_REPLIES_TOPIC_TYPE
],
null,
[],
'id'
);
// 查询所有帖子的评论
$topic_comment_ids = array_column($topic_comment_list, 'id') ? [] : array_column($topic_comment_list, 'id');
$comment_list = [];
if (!empty($topic_comment_ids)) {
$comment_list = $this->_circle_serv->list_by_conds(
[
'pid' => $topic_comment_ids,
'type' => Constant::CIRCLE_COMMENT_TOPIC_TYPE
],
null,
[],
'id'
);
}
$comment_ids = array_column($comment_list, 'id') ? [] : array_column($comment_list, 'id');
// 评论id集合
$cids = array_merge($topic_comment_ids, $comment_ids);
// 获取需要删除的附件ID
$del_attach_ids = [];
$del_attach = $this->_attach_serv->list_by_conds(['cid' => array_merge($ids, $topic_comment_ids)], [], [], 'atid');
if (!empty($del_attach)) {
$del_attach_ids = array_column($del_attach, 'atid');
}
try {
// 开始事务
$this->_circle_serv->start_trans();
// 删除主表、评论数据
$this->_circle_serv->delete_by_conds(['id' => array_merge($ids, $cids)]);
// 删除附件表数据
$this->_attach_serv->delete_by_conds(['cid' => array_merge($ids, $topic_comment_ids)]);
// 删除帖子点赞数据
$this->_like_serv->delete_by_conds(['cid' => array_merge($ids, $cids)]);
// 提交事务
$this->_circle_serv->commit();
} catch (\Think\Exception $e) {
\Think\Log::record($e);
// 事务回滚
$this->_set_error($e->getMessage(), $e->getCode());
$this->_circle_serv->rollback();
return false;
} catch (\Exception $e) {
\Think\Log::record($e);
$this->_set_error($e->getMessage(), $e->getCode());
// 事务回滚
$this->_circle_serv->rollback();
return false;
}
// 删除完成后同步更新收藏状态
$this->_circle_serv->update_collection(implode(',', $ids));
// 数据中心:删除主贴时删除点赞记录
$datacenter =& DataCenter::instance();
if (!empty($cids)) {
$cids = array_merge($cids, $ids);
} else {
$cids = $ids;
}
// 执行删除点赞数据
$datacenter->delLike($cids);
// 执行删除评论数据
$datacenter->delComment($cids);
// 从UC服务器删除附件文件
if (!empty($del_attach_ids)) {
$attach_serv = new AttachOperation();
$attach_serv->delete_attach(
APP_DIR,
'circle',
array_merge($ids, $topic_comment_ids)
);
}
return true;
}
}