Golang Tag.Read方法代码示例

//批量操作
func (this *TagController) batch() {
	ids := this.GetStrings("ids[]")
	op := this.GetString("op")

	idarr := make([]int64, 0)
	for _, v := range ids {
		if id, _ := strconv.Atoi(v); id > 0 {
			idarr = append(idarr, int64(id))
		}
	}

	switch op {
	case "upcount": //更新统计
		for _, id := range idarr {
			obj := models.Tag{Id: id}
			if obj.Read() == nil {
				obj.UpCount()
			}
		}
	case "merge": //合并到
		toname := strings.TrimSpace(this.GetString("toname"))
		if toname != "" && len(idarr) > 0 {
			tag := new(models.Tag)
			tag.Name = toname
			if tag.Read("name") != nil {
				tag.Count = 0
				tag.Insert()
			}
			for _, id := range idarr {
				obj := models.Tag{Id: id}
				if obj.Read() == nil {
					obj.MergeTo(tag)
					obj.Delete()
				}
			}
			tag.UpCount()
		}
	case "delete": //批量删除
		for _, id := range idarr {
			obj := models.Tag{Id: id}
			if obj.Read() == nil {
				obj.Delete()
			}
		}
	}

	this.Redirect("/admin/tag", 302)
}

//保存
func (this *ArticleController) Save() {
	var (
		id      int64  = 0
		title   string = strings.TrimSpace(this.GetString("title"))
		content string = this.GetString("content")
		tags    string = strings.TrimSpace(this.GetString("tags"))
		urlname string = strings.TrimSpace(this.GetString("urlname"))
		color   string = strings.TrimSpace(this.GetString("color"))
		status  int64  = 0
		istop   int8   = 0
		urltype int8   = 1
		post    models.Post
	)

	if title == "" {
		this.showmsg("标题不能为空！")
	}

	id, _ = this.GetInt("id")
	status, _ = this.GetInt("status")

	if this.GetString("istop") == "1" {
		istop = 1
	}
	if this.GetString("urltype") == "2" {
		urltype = 2
	}
	if status != 1 && status != 2 {
		status = 0
	}

	addtags := make([]string, 0)
	//标签过滤
	if tags != "" {
		tagarr := strings.Split(tags, ",")
		for _, v := range tagarr {
			if tag := strings.TrimSpace(v); tag != "" {
				exists := false
				for _, vv := range addtags {
					if vv == tag {
						exists = true
						break
					}
				}
				if !exists {
					addtags = append(addtags, tag)
				}
			}
		}
	}

	if id < 1 {
		post.Userid = this.userid
		post.Author = this.username
		post.Posttime = this.getTime()
		post.Insert()
	} else {
		post.Id = id
		if post.Read() != nil {
			goto RD
		}
		if post.Tags != "" {
			var tagobj models.Tag
			var tagpostobj models.TagPost
			oldtags := strings.Split(strings.Trim(post.Tags, ","), ",")
			//标签统计-1
			tagobj.Query().Filter("name__in", oldtags).Update(orm.Params{"count": orm.ColValue(orm.Col_Minus, 1)})
			//删掉tag_post表的记录
			tagpostobj.Query().Filter("postid", post.Id).Delete()
		}
	}

	if len(addtags) > 0 {
		for _, v := range addtags {
			tag := models.Tag{Name: v}
			if tag.Read("Name") == orm.ErrNoRows {
				tag.Count = 1
				tag.Insert()
			} else {
				tag.Count += 1
				tag.Update("Count")
			}
			tp := models.TagPost{Tagid: tag.Id, Postid: post.Id, Poststatus: int8(status), Posttime: this.getTime()}
			tp.Insert()
		}
		post.Tags = "," + strings.Join(addtags, ",") + ","
	}

	post.Status = int8(status)
	post.Title = title
	post.Color = color
	post.Istop = istop
	post.Content = content
	post.Urlname = urlname
	post.Urltype = urltype
	post.Updated = this.getTime()
	post.Update()

RD:
//.........这里部分代码省略.........

//分类查看
func (this *MainController) Category() {
	var (
		page     int
		pagesize int
		name     string
		err      error
		count    int64
		result   map[string][]*models.Post
	)
	name = this.Ctx.Input.Param(":name")
	if page, err = strconv.Atoi(this.Ctx.Input.Param(":page")); err != nil || page < 1 {
		page = 1
	}
	if pagesize, err = strconv.Atoi(this.getOption("pagesize")); err != nil || pagesize < 1 {
		pagesize = 20
	} else {
		pagesize *= 2
	}

	tagpost := new(models.TagPost)
	tag := new(models.Tag)
	tag.Name = name

	if tag.Read("Name") != nil {
		this.Abort("404")
	}

	query := tagpost.Query().Filter("tagid", tag.Id).Filter("poststatus", 0)
	count, _ = query.Count()
	result = make(map[string][]*models.Post)
	if count > 0 {
		var tp []*models.TagPost
		var list []*models.Post
		var pids []int64 = make([]int64, 0)

		query.OrderBy("-posttime").Limit(pagesize, (page-1)*pagesize).All(&tp)
		for _, v := range tp {
			pids = append(pids, v.Postid)
		}

		new(models.Post).Query().Filter("id__in", pids).All(&list)

		for _, v := range list {
			year := v.Posttime.Format("2006")
			if _, ok := result[year]; !ok {
				result[year] = make([]*models.Post, 0)
			}
			result[year] = append(result[year], v)
		}
	}

	this.Data["tag"] = tag
	this.Data["page"] = page
	this.Data["pagesize"] = pagesize
	this.Data["count"] = count
	this.Data["result"] = result
	this.Data["pagebar"] = models.NewPager(int64(page), int64(count), int64(pagesize), tag.Link()).ToString()

	this.setHeadMetas(tag.Name, tag.Name, tag.Name)
	this.display("category")
}