/**
  * 帖子发布跟编辑。
  */
 public function doEdit()
 {
     $aPostId = I('post.post_id', 0, 'intval');
     $aGroupId = I('post.group_id', 0, 'intval');
     $aTitle = I('post.title', '', 'text');
     $aCategory = I('post.category', 0, 'intval');
     $attach_ids = I('post.attach_ids', '', 'text');
     if ($attach_ids) {
         $aContent = I('post.content', '', 'filter_content');
         $img_ids = explode(',', $attach_ids);
         //把图片和内容结合
         //    dump($img_ids);
         foreach ($img_ids as &$v) {
             $v = D('Picture')->where(array('status' => 1))->getById($v);
             if (!is_bool(strpos($v['path'], 'http://'))) {
                 $v = $v['path'];
             } else {
                 $v = getRootUrl() . substr($v['path'], 1);
             }
             $v = '<p><img src="' . $v . '" style=""/></p><br>';
         }
         $img_ids = implode('', $img_ids);
         $aContent = $img_ids . $aContent;
         $contentHandler = new ContentHandlerModel();
         $aContent = $contentHandler->filterHtmlContent($aContent);
         //把图片和内容结合END
     } else {
         $aContent = I('post.content', '', 'filter_content');
     }
     if (is_joined($aGroupId) != 1) {
         $this->error('您无发布帖子权限');
     }
     //判断是不是编辑模式
     $isEdit = $aPostId ? true : false;
     //如果是编辑模式,确认当前用户能编辑帖子
     $this->requireLogin();
     $this->requireGroupExists($aGroupId);
     if ($isEdit) {
         $this->requirePostExists($aPostId);
         $this->checkActionLimit('edit_group_post', 'GroupPost', $aPostId, is_login(), true);
         $this->checkAuth('Group/Index/edit', get_post_admin($aPostId), '您无编辑帖子权限');
     } else {
         $this->checkActionLimit('add_group_post', 'GroupPost', 0, is_login(), true);
         $this->checkAuth('Group/Index/addPost', -1, '您无添加帖子权限');
     }
     if (empty($aGroupId)) {
         $this->error('请选择帖子所在的群组');
     }
     if (empty($aTitle)) {
         $this->error('请填写帖子标题');
     }
     if (empty($aContent)) {
         $this->error('请填写帖子内容');
     }
     $model = M('GroupPost');
     $cover = get_pic($aContent);
     $cover = $cover == null ? '' : $cover;
     $len = modC('SUMMARY_LENGTH', 50);
     if ($isEdit) {
         $data = array('id' => $aPostId, 'title' => $aTitle, 'summary' => mb_substr(text($aContent), 0, $len, 'utf-8'), 'cover' => $cover, 'content' => $aContent, 'parse' => 0, 'group_id' => $aGroupId, 'cate_id' => $aCategory);
         $result = $model->editPost($data);
         //添加到最新动态
         $dynamic['group_id'] = $aGroupId;
         $dynamic['uid'] = is_login();
         $dynamic['type'] = 'update_post';
         $dynamic['row_id'] = $aPostId;
         M('GroupDynamic')->addDynamic($dynamic);
         if (!$result) {
             $this->error('编辑失败:' . $model->getError());
         }
     } else {
         $data = array('uid' => is_login(), 'title' => $aTitle, 'summary' => mb_substr(text($aContent), 0, $len, 'utf-8'), 'cover' => $cover, 'content' => $aContent, 'parse' => 0, 'group_id' => $aGroupId, 'cate_id' => $aCategory);
         $result = $model->createPost($data);
         if (!$result) {
             $this->error('发表失败。');
         }
         $aPostId = $result;
         //添加到最新动态
         $dynamic['group_id'] = $aGroupId;
         $dynamic['uid'] = is_login();
         $dynamic['type'] = 'post';
         $dynamic['row_id'] = $aPostId;
         M('GroupDynamic')->addDynamic($dynamic);
         //增加活跃度
         M('Group')->where(array('id' => $aGroupId))->setInc('activity');
         M('GroupMember')->where(array('group_id' => $aGroupId, 'uid' => is_login()))->setInc('activity');
     }
     //实现发布帖子发布图片轻博客(公共内容)
     $group = M('Group')->getGroup($aGroupId);
     $this->sendWeibo($aPostId, $isEdit, $group);
     //显示成功消息
     $message = $isEdit ? '编辑成功。' : '发表成功。' . cookie('score_tip');
     $this->success($message, U('Group/Index/detail', array('id' => $aPostId)));
 }
 public function quit()
 {
     $aGroupId = I('group_id', 0, 'intval');
     $this->requireLogin();
     $this->requireGroupExists($aGroupId);
     $this->checkAuth();
     $uid = is_login();
     // 判断是否是创建者,创建者无法退出
     $group = D('Group')->getGroup($aGroupId);
     if ($group['uid'] == $uid) {
         $this->error('创建者无法退出群组');
     }
     // 判断是否在该群组内
     if (is_joined($aGroupId) == 0) {
         $this->error('你不在该群组中');
     }
     $res = D('GroupMember')->delMember(array('group_id' => $aGroupId, 'uid' => $uid));
     if ($res) {
         //添加到最新动态
         $dynamic['group_id'] = $aGroupId;
         $dynamic['uid'] = $uid;
         $dynamic['type'] = 'quit';
         D('GroupDynamic')->addDynamic($dynamic);
         S('group_is_join_' . $aGroupId . '_' . $uid, null);
         S('group_member_count_' . $group['id'], null);
         $this->success('退出成功', 'refresh');
     } else {
         $this->error('退出失败');
     }
 }