Ejemplo n.º 1
0
// 获取某月的文章列表-cached
// select * from article where year(time)=2014 and month(time)=8
// year 年
// month 月
// page 页码
// numPerPage 每页条数
// 返回值:
// []orm.Params 文章
// bool 是否有下一页
// int 总页数
// error 错误
func ListByMonth(year int, month int, page int, numPerPage int) ([]orm.Params, bool, int, error) {
	if year < 0 {
		year = 1970
	}

	if month < 0 || month > 12 {
		month = 1
	}

	if page < 1 {
		page = 1
	}

	if numPerPage < 1 {
		numPerPage = 10
	}

	var maps, maps2 []orm.Params
	o := orm.NewOrm()
	var err error

	// get data - cached
	err = utils.GetCache(fmt.Sprintf("ListByMonth.list.%d.%d.%d", year, month, page), &maps)
	if nil != err {
		sql1 := "select * from article where year(time)=? and month(time)=? order by time desc limit ?,?"
		_, err = o.Raw(sql1, year, month, numPerPage*(page-1), numPerPage).Values(&maps)
		utils.SetCache(fmt.Sprintf("ListByMonth.list.%d.%d.%d", year, month, page), maps, 3600)
	}

	err = utils.GetCache(fmt.Sprintf("ListByMonth.count.%d.%d", year, month), &maps2)
	if nil != err {
		sql2 := "select count(*)as number from article where year(time)=? and month(time)=?"
		_, err = o.Raw(sql2, year, month).Values(&maps2)
		utils.SetCache(fmt.Sprintf("ListByMonth.count.%d.%d", year, month), maps2, 3600)
	}

	// calculate pages
	number, _ := strconv.Atoi(maps2[0]["number"].(string))
	var addFlag int
	if 0 == (number % numPerPage) {
		addFlag = 0
	} else {
		addFlag = 1
	}
	pages := number/numPerPage + addFlag

	var flagNextPage bool
	if pages == page {
		flagNextPage = false
	} else {
		flagNextPage = true
	}

	if err == nil {
		return maps, flagNextPage, pages, nil
	} else {
		return nil, false, pages, err
	}

}
Ejemplo n.º 2
0
// 通过id获取文章-cached
func GetArticle(id int) (Article, error) {
	var err error
	var art Article

	err = utils.GetCache("GetArticle.id."+fmt.Sprintf("%d", id), &art)
	if err != nil {
		o := orm.NewOrm()
		o.Using("default")
		art = Article{Id: id}
		err = o.Read(&art, "id")
		utils.SetCache("GetArticle.id."+fmt.Sprintf("%d", id), art, 600)
	}

	return art, err
}
Ejemplo n.º 3
0
// 最热文章列表 - cached
// select * from article order by count desc limit 10
func HottestArticleList() ([]orm.Params, error) {
	var maps []orm.Params

	// get data - cached
	err := utils.GetCache("HottestArticleList", &maps)
	if nil != err {
		sql := "select id,uri,title,count from article order by count desc limit 20"
		o := orm.NewOrm()
		_, err = o.Raw(sql).Values(&maps)

		utils.SetCache("HottestArticleList", maps, 3600)
	}

	return maps, err
}
Ejemplo n.º 4
0
// 文章分页列表
// select * from article order by time desc limit 0,6
// page 页码
// numPerPage 每页条数
// 返回值:
// []orm.Params 文章
// bool 是否有下一页
// int 总页数
// error 错误
func ListPage(page int, numPerPage int) ([]orm.Params, bool, int, error) {
	// pagePerNum := 6
	sql1 := "select * from article order by time desc limit ?," + fmt.Sprintf("%d", numPerPage)
	sql2 := "select count(*) as number from article"
	var maps, maps2 []orm.Params
	o := orm.NewOrm()
	num, err := o.Raw(sql1, numPerPage*(page-1)).Values(&maps)
	if err != nil {
		fmt.Println("execute sql1 error:")
		fmt.Println(err)
		return nil, false, 0, err
	}

	err = utils.GetCache("ArticleNumber", &maps2)
	if nil != err {
		_, err = o.Raw(sql2).Values(&maps2)
		if err != nil {
			fmt.Println("execute sql2 error:")
			fmt.Println(err)
			return nil, false, 0, err
		}
		utils.SetCache("ArticleNumber", maps2, 3600)
	}

	number, err := strconv.Atoi(maps2[0]["number"].(string))

	var addFlag int
	if 0 == (number % numPerPage) {
		addFlag = 0
	} else {
		addFlag = 1
	}

	pages := number/numPerPage + addFlag

	var flagNextPage bool
	if pages == page {
		flagNextPage = false
	} else {
		flagNextPage = true
	}

	if err == nil && num > 0 {
		return maps, flagNextPage, pages, nil
	} else {
		return nil, false, pages, err
	}
}
Ejemplo n.º 5
0
// 按月份统计文章数-cached
// select DATE_FORMAT(time,'%Y年%m月') as date,count(*) as number ,year(time) as year, month(time) as month from article group by date order by year desc, month desc
func CountByMonth() ([]orm.Params, error) {
	var maps []orm.Params

	err := utils.GetCache("CountByMonth", &maps)
	if nil != err {
		sql := "select DATE_FORMAT(time,'%Y年%m月') as date,count(*) as number ,year(time) as year, month(time) as month from article group by date order by year desc, month desc"
		o := orm.NewOrm()
		num, err := o.Raw(sql).Values(&maps)
		if err == nil && num > 0 {
			utils.SetCache("CountByMonth", maps, 3600)
			return maps, nil
		} else {
			return nil, err
		}
	} else {
		return maps, err
	}

}
Ejemplo n.º 6
0
// 通过文章标题获取文章-cached
func GetArticleByTitle(title string) (Article, error) {
	var err error
	var art Article

	err = utils.GetCache("GetArticleByTitle.title."+title, &art)
	if err != nil {
		// get view count
		count, err := GetArticleViewCount(art.Id)
		if err == nil {
			art.Count = int(count)
		}

		return art, nil
	} else {
		o := orm.NewOrm()
		o.Using("default")
		art = Article{Title: title}
		err = o.Read(&art, "title")
		utils.SetCache("GetArticleByTitle.title."+title, art, 600)
	}

	return art, err
}
Ejemplo n.º 7
0
// 通过uri获取文章-cached
func GetArticleByUri(uri string) (Article, error) {
	var err error
	var art Article

	err = utils.GetCache("GetArticleByUri.uri."+uri, &art)
	if err == nil {
		// get view count
		count, err := GetArticleViewCount(art.Id)
		if err == nil {
			art.Count = int(count)
		}

		return art, nil
	} else {
		o := orm.NewOrm()
		o.Using("default")
		art = Article{Uri: uri}
		err = o.Read(&art, "uri")
		utils.SetCache("GetArticleByUri.uri."+uri, art, 600)
	}

	return art, err
}