// 发表评论。入topics_reply库，更新topics和topics_ex库
// objname 注册的评论对象名
func PostComment(objid, objtype, uid int, content string, objname string) error {
comment := model.NewComment()
comment.Objid = objid
comment.Objtype = objtype
comment.Uid = uid
comment.Content = content
// TODO:评论楼层怎么处理，避免冲突？最后的楼层信息保存在内存中？
// 暂时只是从数据库中取出最后的评论楼层
stringBuilder := util.NewBuffer()
stringBuilder.Append("objid=").AppendInt(objid).Append(" AND objtype=").AppendInt(objtype)
tmpCmt, err := model.NewComment().Where(stringBuilder.String()).Order("ctime DESC").Find()
if err != nil {
logger.Errorln("post comment service error:", err)
return err
} else {
comment.Floor = tmpCmt.Floor + 1
}
// 入评论库
cid, err := comment.Insert()
if err != nil {
logger.Errorln("post comment service error:", err)
return err
}
// 回调，不关心处理结果（有些对象可能不需要回调）
if commenter, ok := commenters[objname]; ok {
logger.Debugf("评论[objid:%d] [objtype:%d] [uid:%d] 成功，通知被评论者更新", objid, objtype, uid)
go commenter.UpdateComment(cid, objid, uid, time.Now().Format("2006-01-02 15:04:05"))
}
return nil
}
// 发表评论（或回复）。
// objid 注册的评论对象
// uid 评论人
func PostComment(uid, objid int, form url.Values) (*model.Comment, error) {
comment := model.NewComment()
comment.Objid = objid
objtype := util.MustInt(form.Get("objtype"))
comment.Objtype = objtype
comment.Uid = uid
comment.Content = form.Get("content")
// TODO:评论楼层怎么处理，避免冲突？最后的楼层信息保存在内存中？
// 暂时只是从数据库中取出最后的评论楼层
stringBuilder := util.NewBuffer()
stringBuilder.Append("objid=").AppendInt(objid).Append(" AND objtype=").AppendInt(objtype)
tmpCmt, err := model.NewComment().Where(stringBuilder.String()).Order("ctime DESC").Find()
if err != nil {
logger.Errorln("post comment service error:", err)
return nil, err
} else {
comment.Floor = tmpCmt.Floor + 1
}
// 入评论库
cid, err := comment.Insert()
if err != nil {
logger.Errorln("post comment service error:", err)
return nil, err
}
comment.Cid = cid
comment.Ctime = util.TimeNow()
decodeCmtContent(comment)
// 回调，不关心处理结果（有些对象可能不需要回调）
if commenter, ok := commenters[objtype]; ok {
logger.Debugf("评论[objid:%d] [objtype:%d] [uid:%d] 成功，通知被评论者更新", objid, objtype, uid)
go commenter.UpdateComment(cid, objid, uid, time.Now().Format("2006-01-02 15:04:05"))
}
// 发评论，活跃度+5
go IncUserWeight("uid="+strconv.Itoa(uid), 5)
// 给被评论对象所有者发系统消息
ext := map[string]interface{}{
"objid": objid,
"objtype": objtype,
"cid": cid,
"uid": uid,
}
go SendSystemMsgTo(0, objtype, ext)
// @某人 发系统消息
go SendSysMsgAtUids(form.Get("uid"), ext)
go SendSysMsgAtUsernames(form.Get("usernames"), ext)
return comment, nil
}
// 获得帖子详细信息（包括详细回复）
// 为了避免转换，tid传string类型
func FindTopicByTid(tid string) (topicMap map[string]interface{}, replies []map[string]interface{}, err error) {
condition := "tid=" + tid
// 帖子信息
topic := model.NewTopic()
err = topic.Where(condition).Find()
if err != nil {
logger.Errorln("topic service FindTopicByTid Error:", err)
return
}
// 帖子不存在
if topic.Tid == 0 {
return
}
topicMap = make(map[string]interface{})
util.Struct2Map(topicMap, topic)
topicEx := model.NewTopicEx()
err = topicEx.Where(condition).Find()
if err != nil {
logger.Errorln("topic service FindTopicByTid Error:", err)
return
}
if topicEx.Tid == 0 {
return
}
util.Struct2Map(topicMap, topicEx)
// 节点名字
topicMap["node"] = model.GetNodeName(topic.Nid)
// 回复信息（评论）
replyList, err := model.NewComment().Where("objid=" + tid + " and objtype=" + strconv.Itoa(model.TYPE_TOPIC)).FindAll()
if err != nil {
logger.Errorln("topic service FindTopicByTid Error:", err)
return
}
replyNum := len(replyList)
uids := make(map[int]int, replyNum+1)
uids[topic.Uid] = topic.Uid
for _, reply := range replyList {
uids[reply.Uid] = reply.Uid
}
// 获得用户信息
userMap := getUserInfos(uids)
topicMap["user"] = userMap[topic.Uid]
// 有人回复
if topic.Lastreplyuid != 0 {
topicMap["lastreplyusername"] = userMap[topicMap["lastreplyuid"].(int)].Username
}
replies = make([]map[string]interface{}, 0, replyNum)
for _, reply := range replyList {
tmpMap := make(map[string]interface{})
util.Struct2Map(tmpMap, reply)
tmpMap["user"] = userMap[reply.Uid]
replies = append(replies, tmpMap)
}
return
}
// 获得某个对象的所有评论
// owner: 被评论对象属主
// TODO:分页暂不做
func FindObjComments(objid, objtype string, owner, lastCommentUid int /*, page, pageNum int*/) (comments []map[string]interface{}, ownerUser, lastReplyUser *model.User) {
commentList, err := model.NewComment().Where("objid=" + objid + " and objtype=" + objtype).FindAll()
if err != nil {
logger.Errorln("comment service FindObjComments Error:", err)
return
}
commentNum := len(commentList)
uids := make(map[int]int, commentNum+1)
uids[owner] = owner
// 避免某些情况下最后回复人没在回复列表中
uids[lastCommentUid] = lastCommentUid
for _, comment := range commentList {
uids[comment.Uid] = comment.Uid
}
// 获得用户信息
userMap := getUserInfos(uids)
ownerUser = userMap[owner]
if lastCommentUid != 0 {
lastReplyUser = userMap[lastCommentUid]
}
comments = make([]map[string]interface{}, 0, commentNum)
for _, comment := range commentList {
tmpMap := make(map[string]interface{})
util.Struct2Map(tmpMap, comment)
tmpMap["content"] = decodeCmtContent(comment)
tmpMap["user"] = userMap[comment.Uid]
comments = append(comments, tmpMap)
}
return
}
// 获得某个对象的所有评论
// owner: 被评论对象属主
// TODO:分页暂不做
func FindObjComments(objid, objtype string, owner, lastCommentUid int /*, page, pageNum int*/) (comments []map[string]interface{}, ownerUser, lastReplyUser *model.User) {
commentList, err := model.NewComment().Where("objid=" + objid + " and objtype=" + objtype).FindAll()
if err != nil {
logger.Errorln("comment service FindObjComments Error:", err)
return
}
uids := util.Models2Intslice(commentList, "Uid")
// 避免某些情况下最后回复人没在回复列表中
uids = append(uids, owner, lastCommentUid)
// 获得用户信息
userMap := GetUserInfos(uids)
ownerUser = userMap[owner]
if lastCommentUid != 0 {
lastReplyUser = userMap[lastCommentUid]
}
comments = make([]map[string]interface{}, 0, len(commentList))
for _, comment := range commentList {
tmpMap := make(map[string]interface{})
util.Struct2Map(tmpMap, comment)
tmpMap["content"] = template.HTML(decodeCmtContent(comment))
tmpMap["user"] = userMap[comment.Uid]
comments = append(comments, tmpMap)
}
return
}
// 某类型的评论总数
func CommentsTotal(objtype int) (total int) {
total, err := model.NewComment().Where("objtype=" + strconv.Itoa(objtype)).Count()
if err != nil {
logger.Errorln("comment service CommentsTotal error:", err)
return
}
return
}
// 获得某人在某种类型最近的评论
func FindRecentComments(uid, objtype int) []*model.Comment {
comments, err := model.NewComment().Where("uid=" + strconv.Itoa(uid) + " AND objtype=" + strconv.Itoa(objtype)).Order("ctime DESC").Limit("0, 5").FindAll()
if err != nil {
logger.Errorln("comment service FindRecentComments error:", err)
return nil
}
return comments
}
func ModifyComment(cid, content string) (errMsg string, err error) {
err = model.NewComment().Set("content=?", content).Where("cid=" + cid).Update()
if err != nil {
logger.Errorf("更新评论内容 【%s】 失败：%s\n", cid, err)
errMsg = "对不起，服务器内部错误，请稍后再试！"
return
}
return
}
// 获取多个评论信息
func FindCommentsByIds(cids []int) []*model.Comment {
if len(cids) == 0 {
return nil
}
inCids := util.Join(cids, ",")
comments, err := model.NewComment().Where("cid in(" + inCids + ")").FindAll()
if err != nil {
logger.Errorln("comment service FindCommentsByIds error:", err)
return nil
}
return comments
}
// 获得某个对象的所有评论（新版）
// TODO:分页暂不做
func FindObjectComments(objid, objtype string) (commentList []*model.Comment, err error) {
commentList, err = model.NewComment().Where("objid=" + objid + " and objtype=" + objtype).FindAll()
if err != nil {
logger.Errorln("comment service FindObjectComments Error:", err)
}
for _, comment := range commentList {
decodeCmtContent(comment)
}
return
}
// 评论总数(objtype != -1 时，取某一类型的评论总数)
func CommentsTotal(objtype int) (total int) {
var cond string
if objtype != -1 {
cond = "objtype=" + strconv.Itoa(objtype)
}
total, err := model.NewComment().Where(cond).Count()
if err != nil {
logger.Errorln("comment service CommentsTotal error:", err)
return
}
return
}
// 获得最近的评论
// 如果 uid!=0，表示获取某人的评论；
// 如果 objtype!=-1，表示获取某类型的评论；
func FindRecentComments(uid, objtype int, limit string) []*model.Comment {
cond := ""
if uid != 0 {
cond = "uid=" + strconv.Itoa(uid)
}
if objtype != -1 {
if cond != "" {
cond += " AND "
}
cond += "objtype=" + strconv.Itoa(objtype)
}
comments, err := model.NewComment().Where(cond).Order("cid DESC").Limit(limit).FindAll()
if err != nil {
logger.Errorln("comment service FindRecentComments error:", err)
return nil
}
cmtMap := make(map[int][]*model.Comment, len(model.PathUrlMap))
for _, comment := range comments {
decodeCmtContent(comment)
if _, ok := cmtMap[comment.Objtype]; !ok {
cmtMap[comment.Objtype] = make([]*model.Comment, 0, 10)
}
cmtMap[comment.Objtype] = append(cmtMap[comment.Objtype], comment)
}
cmtObjs := []CommentObjecter{
model.TYPE_TOPIC: TopicComment{},
model.TYPE_ARTICLE: ArticleComment{},
model.TYPE_RESOURCE: ResourceComment{},
model.TYPE_WIKI: nil,
model.TYPE_PROJECT: ProjectComment{},
}
for cmtType, cmts := range cmtMap {
FillCommentObjs(cmts, cmtObjs[cmtType])
}
return comments
}