Golang Model.NewTopic函数代码示例

func IncrTopicReply(tid string, uid int) (err error) {
	err = model.NewTopic().Where("tid="+tid).Increment("reply", 1)
	if err != nil {
		logger.Errorln("更新帖子reply数失败：", err)
	}
	return
}

// 新建帖子
// uri: /topics/new{json:(|.json)}
func NewTopicHandler(rw http.ResponseWriter, req *http.Request) {
	nodes := genNodes()
	vars := mux.Vars(req)
	title := req.FormValue("title")
	// 请求新建帖子页面
	if title == "" || req.Method != "POST" || vars["json"] == "" {
		req.Form.Set(filter.CONTENT_TPL_KEY, "/template/topics/new.html")
		filter.SetData(req, map[string]interface{}{"nodes": nodes})
		return
	}

	user, _ := filter.CurrentUser(req)
	// 入库
	topic := model.NewTopic()
	topic.Uid = user["uid"].(int)
	topic.Nid = util.MustInt(req.FormValue("nid"))
	topic.Title = req.FormValue("title")
	topic.Content = req.FormValue("content")
	errMsg, err := service.PublishTopic(topic)
	if err != nil {
		fmt.Fprint(rw, `{"errno": 1, "error":"`, errMsg, `"}`)
		return
	}
	fmt.Fprint(rw, `{"errno": 0, "error":""}`)
}

// 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)

	// 节点名字
	topicMap["node"] = model.GetNodeName(topic.Nid)

	// 回复信息（评论）
	replies, owerUser, lastReplyUser := FindObjComments(tid, strconv.Itoa(model.TYPE_TOPIC), topic.Uid, topic.Lastreplyuid)
	topicMap["user"] = owerUser
	// 有人回复
	if topic.Lastreplyuid != 0 {
		topicMap["lastreplyusername"] = lastReplyUser.Username
	}
	return
}

// 话题总数
func TopicsTotal() (total int) {
	total, err := model.NewTopic().Count()
	if err != nil {
		logger.Errorln("topic service TopicsTotal error:", err)
	}
	return
}

// 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
}

// 获取单个 Topic 信息（用于编辑）
func FindTopic(tid string) *model.Topic {
	topic := model.NewTopic()
	err := topic.Where("tid=?", tid).Find()
	if err != nil {
		logger.Errorf("FindTopic [%s] error：%s\n", tid, err)
	}

	return topic
}

// 索引帖子
func IndexingTopic(isAll bool) {
	solrClient := NewSolrClient()

	topicObj := model.NewTopic()
	topicExObj := model.NewTopicEx()

	limit := strconv.Itoa(MaxRows)
	if isAll {
		id := 0
		for {
			topicList, err := topicObj.Where("tid>?", id).Limit(limit).FindAll()
			if err != nil {
				logger.Errorln("IndexingTopic error:", err)
				break
			}

			if len(topicList) == 0 {
				break
			}

			tids := util.Models2Intslice(topicList, "Tid")

			tmpStr := strings.Repeat("?,", len(tids))
			query := "tid in(" + tmpStr[:len(tmpStr)-1] + ")"
			args := make([]interface{}, len(tids))
			for i, tid := range tids {
				args[i] = tid
			}

			topicExList, err := topicExObj.Where(query, args...).FindAll()
			if err != nil {
				logger.Errorln("IndexingTopic error:", err)
				break
			}

			topicExMap := make(map[int]*model.TopicEx, len(topicExList))
			for _, topicEx := range topicExList {
				topicExMap[topicEx.Tid] = topicEx
			}

			for _, topic := range topicList {
				if id < topic.Tid {
					id = topic.Tid
				}

				topicEx, _ := topicExMap[topic.Tid]

				document := model.NewDocument(topic, topicEx)
				addCommand := model.NewDefaultArgsAddCommand(document)

				solrClient.Push(addCommand)
			}

			solrClient.Post()
		}
	}
}

// 获取多个帖子详细信息
func FindTopicsByTids(tids []int) []*model.Topic {
	inTids := util.Join(tids, ",")
	topics, err := model.NewTopic().Where("tid in(" + inTids + ")").FindAll()
	if err != nil {
		logger.Errorln("topic service FindRecentReplies error:", err)
		return nil
	}
	return topics
}

// 获得某个节点下的帖子列表（侧边栏推荐）
func FindTopicsByNid(nid, curTid string) (topics []*model.Topic) {
	var err error
	topics, err = model.NewTopic().Where("nid=" + nid + " and tid!=" + curTid).Limit("0,10").FindAll()
	if err != nil {
		logger.Errorln("topic service FindTopicsByNid Error:", err)
		return
	}
	return
}

// 通过tid获得话题的所有者
func getTopicOwner(tid int) int {
	// 帖子信息
	topic := model.NewTopic()
	err := topic.Where("tid=" + strconv.Itoa(tid)).Find()
	if err != nil {
		logger.Errorln("topic service getTopicOwner Error:", err)
		return 0
	}
	return topic.Uid
}

// 更新该帖子的回复信息
// cid：评论id；objid：被评论对象id；uid：评论者；cmttime：评论时间
func (self TopicComment) UpdateComment(cid, objid, uid int, cmttime string) {
	tid := strconv.Itoa(objid)
	// 更新最后回复信息
	stringBuilder := util.NewBuffer().Append("lastreplyuid=").AppendInt(uid).Append(",lastreplytime=").Append(cmttime)
	err := model.NewTopic().Set(stringBuilder.String()).Where("tid=" + tid).Update()
	if err != nil {
		logger.Errorln("更新帖子最后回复人信息失败：", err)
	}
	// 更新回复数（TODO：暂时每次都更新表）
	IncrTopicReply(tid, uid)
}

// 获得社区最新公告
func FindNoticeTopic() (topic *model.Topic) {
	topics, err := model.NewTopic().Where("nid=15").Limit("0,1").Order("mtime DESC").FindAll()
	if err != nil {
		logger.Errorln("topic service FindTopicsByNid Error:", err)
		return
	}
	if len(topics) > 0 {
		topic = topics[0]
	}
	return
}

// 获得某个用户最近的帖子
func FindRecentTopics(uid int) []*model.Topic {
	topics, err := model.NewTopic().Where("uid=" + strconv.Itoa(uid)).Order("ctime DESC").Limit("0, 5").FindAll()
	if err != nil {
		logger.Errorln("topic service FindRecentTopics error:", err)
		return nil
	}
	for _, topic := range topics {
		topic.Node = model.GetNodeName(topic.Nid)
	}
	return topics
}

func FindTopicsByWhere(where, order, limit string) (topics []map[string]interface{}, total int) {
	topicObj := model.NewTopic()
	if where != "" {
		topicObj.Where(where)
	}
	if order != "" {
		topicObj.Order(order)
	}
	if limit != "" {
		topicObj.Limit(limit)
	}
	topicList, err := topicObj.FindAll()
	if err != nil {
		logger.Errorln("topic service topicObj.FindAll Error:", err)
		return
	}
	// 获得总帖子数
	total, err = topicObj.Count()
	if err != nil {
		logger.Errorln("topic service topicObj.Count Error:", err)
		return
	}
	count := len(topicList)
	tids := make([]int, count)
	uids := make(map[int]int)
	nids := make([]int, count)
	for i, topic := range topicList {
		tids[i] = topic.Tid
		uids[topic.Uid] = topic.Uid
		if topic.Lastreplyuid != 0 {
			uids[topic.Lastreplyuid] = topic.Lastreplyuid
		}
		nids[i] = topic.Nid
	}

	userMap := getUserInfos(uids)

	// 获取节点信息
	nodes := model.GetNodesName(nids)

	topics = make([]map[string]interface{}, count)
	for i, topic := range topicList {
		tmpMap := make(map[string]interface{})
		util.Struct2Map(tmpMap, topic)
		tmpMap["user"] = userMap[topic.Uid]
		// 有人回复
		if tmpMap["lastreplyuid"].(int) != 0 {
			tmpMap["lastreplyusername"] = userMap[tmpMap["lastreplyuid"].(int)].Username
		}
		tmpMap["node"] = nodes[tmpMap["nid"].(int)]
		topics[i] = tmpMap
	}
	return
}

// 获取多个主题详细信息
func FindTopicsByIds(ids []int) []*model.Topic {
	if len(ids) == 0 {
		return nil
	}
	inIds := util.Join(ids, ",")
	topics, err := model.NewTopic().Where("tid in(" + inIds + ")").FindAll()
	if err != nil {
		logger.Errorln("topic service FindTopicsByIds error:", err)
		return nil
	}
	return topics
}