mirror of https://github.com/mindoc-org/mindoc.git
335 lines
10 KiB
Go
335 lines
10 KiB
Go
package utils
|
||
|
||
import (
|
||
// "fmt"
|
||
html "html/template"
|
||
con "strconv"
|
||
"strings"
|
||
|
||
"github.com/astaxie/beego/orm"
|
||
"fmt"
|
||
"math"
|
||
)
|
||
|
||
type PageOptions struct {
|
||
TableName string //表名 -----------------[必填]
|
||
Conditions string //条件
|
||
CurrentPage int //当前页 ,默认1 每次分页,必须在前台设置新的页数,不设置始终默认1.在控制器中使用方式:cp, _ := this.GetInt("pno") po.CurrentPage = int(cp)
|
||
PageSize int //页面大小,默认20
|
||
LinkItemCount int //生成A标签的个数 默认10个
|
||
Href string //A标签的链接地址 ---------[不需要设置]
|
||
ParamName string //参数名称 默认是pno
|
||
FirstPageText string //首页文字 默认"首页"
|
||
LastPageText string //尾页文字 默认"尾页"
|
||
PrePageText string //上一页文字 默认"上一页"
|
||
NextPageText string //下一页文字 默认"下一页"
|
||
EnableFirstLastLink bool //是否启用首尾连接 默认false 建议开启
|
||
EnablePreNexLink bool //是否启用上一页,下一页连接 默认false 建议开启
|
||
}
|
||
|
||
/**
|
||
* 分页函数，适用任何表
|
||
* 返回 总记录条数,总页数,以及当前请求的数据RawSeter,调用中需要"rs.QueryRows(&tblog)"就行了 --tblog是一个Tb_log对象
|
||
* 参数：表名，当前页数，页面大小，条件（查询条件,格式为 " and name='zhifeiya' and age=12 "）
|
||
*/
|
||
func GetPagesInfo(tableName string, currentpage int, pagesize int, conditions string) (int, int, orm.RawSeter) {
|
||
if currentpage <= 1 {
|
||
currentpage = 1
|
||
}
|
||
if pagesize == 0 {
|
||
pagesize = 20
|
||
}
|
||
var rs orm.RawSeter
|
||
o := orm.NewOrm()
|
||
var totalItem, totalpages int = 0, 0 //总条数,总页数
|
||
o.Raw("SELECT count(*) FROM " + tableName + " where 1 > 0 " + conditions).QueryRow(&totalItem) //获取总条数
|
||
if totalItem <= pagesize {
|
||
totalpages = 1
|
||
} else if totalItem > pagesize {
|
||
temp := totalItem / pagesize
|
||
if (totalItem % pagesize) != 0 {
|
||
temp = temp + 1
|
||
}
|
||
totalpages = temp
|
||
}
|
||
rs = o.Raw("select * from " + tableName + " where 1 > 0 " + conditions + " LIMIT " + con.Itoa((currentpage-1)*pagesize) + "," + con.Itoa(pagesize))
|
||
return totalItem, totalpages, rs
|
||
}
|
||
|
||
/**
|
||
* 返回总记录条数,总页数,当前页面数据,分页html
|
||
* 根据分页选项,生成分页连接 下面是一个实例:
|
||
func (this *MainController) Test() {
|
||
var po util.PageOptions
|
||
po.EnablePreNexLink = true
|
||
po.EnableFirstLastLink = true
|
||
po.LinkItemCount = 7
|
||
po.TableName = "help_topic"
|
||
cp, _ := this.GetInt("pno")
|
||
po.CurrentPage = int(cp)
|
||
_,_,_ pager := util.GetPagerLinks(&po, this.Ctx)
|
||
this.Data["Email"] = html.HTML(pager)
|
||
this.TplName = "test.html"
|
||
}
|
||
*/
|
||
func GetPagerLinks(po *PageOptions,requestURI string) (int, int, orm.RawSeter, html.HTML) {
|
||
str := ""
|
||
totalItem, totalpages, rs := GetPagesInfo(po.TableName, po.CurrentPage, po.PageSize, po.Conditions)
|
||
po = setDefault(po, totalpages)
|
||
DealUri(po, requestURI)
|
||
if totalpages <= po.LinkItemCount {
|
||
str = fun1(po, totalpages) //显示完全 12345678910
|
||
} else if totalpages > po.LinkItemCount {
|
||
if po.CurrentPage < po.LinkItemCount {
|
||
str = fun2(po, totalpages) //123456789...200
|
||
} else {
|
||
if po.CurrentPage + po.LinkItemCount < totalpages {
|
||
str = fun3(po, totalpages)
|
||
} else {
|
||
str = fun4(po, totalpages)
|
||
}
|
||
}
|
||
}
|
||
return totalItem, totalpages, rs, html.HTML(str)
|
||
}
|
||
|
||
func GetPagerHtml(requestURI string,pageIndex, pageSize,totalCount int) (html.HTML){
|
||
po := &PageOptions{
|
||
CurrentPage: pageIndex,
|
||
PageSize: pageSize,
|
||
EnableFirstLastLink : true,
|
||
ParamName : "page",
|
||
}
|
||
totalPages := int(math.Ceil(float64(totalCount) / float64(pageSize)))
|
||
|
||
setDefault(po,totalPages)
|
||
DealUri(po,requestURI)
|
||
str := ""
|
||
if totalPages <= po.LinkItemCount {
|
||
str = fun1(po, totalPages) //显示完全 12345678910
|
||
} else if totalPages > po.LinkItemCount {
|
||
if po.CurrentPage < po.LinkItemCount {
|
||
str = fun2(po, totalPages) //123456789...200
|
||
} else {
|
||
if po.CurrentPage + po.LinkItemCount < totalPages {
|
||
str = fun3(po, totalPages)
|
||
} else {
|
||
str = fun4(po, totalPages)
|
||
}
|
||
}
|
||
}
|
||
str = strings.Replace(str,"?&","?",-1)
|
||
//str = strings.Replace(str,"&&","&",-1)
|
||
return html.HTML(str)
|
||
}
|
||
|
||
/**
|
||
* 处理url,目的是保存参数
|
||
*/
|
||
func DealUri(po *PageOptions, requestURI string) {
|
||
var rs string
|
||
if strings.Contains(requestURI, "?") {
|
||
arr := strings.Split(requestURI, "?")
|
||
rs = ""
|
||
arr2 := strings.Split(arr[1], "&")
|
||
for _, v := range arr2 {
|
||
if !strings.Contains(v, po.ParamName) {
|
||
if strings.HasSuffix(rs,"&") {
|
||
rs += v
|
||
}else{
|
||
rs += v + "&"
|
||
}
|
||
//rs += "&" + v
|
||
}
|
||
}
|
||
if strings.HasPrefix(rs,"&") {
|
||
rs = string(rs[1:])
|
||
}
|
||
if strings.HasSuffix(rs,"&"){
|
||
rs = string(rs[0:strings.Count(rs,"")-1])
|
||
}
|
||
rs = arr[0] + "?" + rs
|
||
fmt.Println(rs)
|
||
} else {
|
||
//rs = requestURI + "?" //+ po.ParamName + "time=" + con.Itoa(time.Now().Second())
|
||
rs = requestURI + "?"
|
||
}
|
||
|
||
po.Href = rs
|
||
}
|
||
|
||
/**
|
||
* 1...197 198 199 200
|
||
*/
|
||
func fun4(po *PageOptions, totalPages int) string {
|
||
rs := ""
|
||
rs += getHeader(po, totalPages)
|
||
rs += "<li><a href='" + po.Href + "&" + po.ParamName + "=" + con.Itoa(1) + "'>" + con.Itoa(1) + "</a><li>"
|
||
rs += "<li><a href=''>...</a></li>"
|
||
for i := totalPages - po.LinkItemCount; i <= totalPages; i++ {
|
||
if po.CurrentPage != i {
|
||
rs += "<li><a href='" + po.Href + "&" + po.ParamName + "=" + con.Itoa(i) + "'>" + con.Itoa(i) + "</a></li>"
|
||
} else {
|
||
rs += "<li class=\"active\"><a href=\"###\">" + con.Itoa(i) + " <span class=\"sr-only\">(current)</span></a></li>"
|
||
}
|
||
}
|
||
rs += getFooter(po, totalPages)
|
||
return rs
|
||
|
||
}
|
||
|
||
/**
|
||
* 1...6 7 8 9 10 11 12 13 14 15... 200
|
||
*/
|
||
func fun3(po *PageOptions, totalpages int) string {
|
||
var rs string = ""
|
||
rs += getHeader(po, totalpages)
|
||
rs += "<li><a href='" + po.Href + "&" + po.ParamName + "=" + con.Itoa(1) + "'>" + con.Itoa(1) + "</a></li>"
|
||
rs += "<a href=''>...</a>"
|
||
for i := po.CurrentPage - po.LinkItemCount/2 + 1; i <= po.CurrentPage+po.LinkItemCount/2-1; i++ {
|
||
if po.CurrentPage != i {
|
||
rs += "<a href='" + po.Href + "&" + po.ParamName + "=" + con.Itoa(i) + "'>" + con.Itoa(i) + "</a>"
|
||
} else {
|
||
rs += "<li class=\"active\"><a href=\"###\">" + con.Itoa(i) + " <span class=\"sr-only\">(current)</span></a></li>"
|
||
}
|
||
}
|
||
rs += "<a href=''>...</a>"
|
||
rs += "<li><a href='" + po.Href + "&" + po.ParamName + "=" + con.Itoa(totalpages) + "'>" + con.Itoa(totalpages) + "</a></li>"
|
||
rs += getFooter(po, totalpages)
|
||
return rs
|
||
|
||
}
|
||
|
||
/**
|
||
* totalpages > po.LinkItemCount po.CurrentPage < po.LinkItemCount
|
||
* 123456789...200
|
||
*/
|
||
func fun2(po *PageOptions, totalpages int) string {
|
||
var rs string = ""
|
||
rs += getHeader(po, totalpages)
|
||
for i := 1; i <= po.LinkItemCount+1; i++ {
|
||
if i == po.LinkItemCount {
|
||
rs += "<li><a href=\"" + po.Href + "&" + po.ParamName + "=" + con.Itoa(i) + "\">...</a></li>"
|
||
} else if i == po.LinkItemCount+1 {
|
||
rs += "<li><a href=\"" + po.Href + "&" + po.ParamName + "=" + con.Itoa(totalpages) + "\">" + con.Itoa(totalpages) + "</a></li>"
|
||
} else {
|
||
if po.CurrentPage != i {
|
||
rs += "<li><a href='" + po.Href + "&" + po.ParamName + "=" + con.Itoa(i) + "'>" + con.Itoa(i) + "</a></li>"
|
||
} else {
|
||
rs += "<li class=\"active\"><a href=\"###\">" + con.Itoa(i) + " <span class=\"sr-only\">(current)</span></a></li>"
|
||
}
|
||
}
|
||
}
|
||
rs += getFooter(po, totalpages)
|
||
return rs
|
||
}
|
||
|
||
/**
|
||
* totalpages <= po.LinkItemCount
|
||
* 显示完全 12345678910
|
||
*/
|
||
func fun1(po *PageOptions, totalpages int) string {
|
||
|
||
var rs string = ""
|
||
rs += getHeader(po, totalpages)
|
||
for i := 1; i <= totalpages; i++ {
|
||
if po.CurrentPage != i {
|
||
|
||
rs += "<li><a href='" + po.Href + "&" + po.ParamName + "=" + con.Itoa(i) + "'>" + con.Itoa(i) + "</a></li>"
|
||
} else {
|
||
rs += "<li class=\"active\"><a href=\"###\">" + con.Itoa(i) + " <span class=\"sr-only\">(current)</span></a></li>"
|
||
}
|
||
}
|
||
rs += getFooter(po, totalpages)
|
||
return rs
|
||
}
|
||
|
||
/**
|
||
* 头部
|
||
*/
|
||
func getHeader(po *PageOptions, totalpages int) string {
|
||
var rs string = "<ul class=\"pagination\">"
|
||
if po.EnableFirstLastLink { //当首页,尾页都设定的时候,就显示
|
||
|
||
rs += "<li" + judgeDisable(po, totalpages, 0) + " ><a href='" + po.Href + "&" + po.ParamName + "=" + con.Itoa(1) + "'>" + po.FirstPageText + "</a></li>"
|
||
}
|
||
if po.EnablePreNexLink { // disabled=\"disabled\"
|
||
var a int = po.CurrentPage - 1
|
||
if po.CurrentPage == 1 {
|
||
a = 1
|
||
}
|
||
rs += "<li" + judgeDisable(po, totalpages, 0) + " ><a href='" + po.Href + "&" + po.ParamName + "=" + con.Itoa(a) + "'>" + po.PrePageText + "</a></li>"
|
||
}
|
||
return rs
|
||
}
|
||
|
||
/**
|
||
* 尾部
|
||
*/
|
||
func getFooter(po *PageOptions, totalpages int) string {
|
||
var rs string = ""
|
||
if po.EnablePreNexLink {
|
||
var a int = po.CurrentPage + 1
|
||
if po.CurrentPage == totalpages {
|
||
a = totalpages
|
||
}
|
||
rs += "<li " + judgeDisable(po, totalpages, 1) + " ><a href='" + po.Href + "&" + po.ParamName + "=" + con.Itoa(a) + "'>" + po.NextPageText + "</a></li>"
|
||
}
|
||
if po.EnableFirstLastLink { //当首页,尾页都设定的时候,就显示
|
||
rs += "<li " + judgeDisable(po, totalpages, 1) + " ><a href='" + po.Href + "&" + po.ParamName + "=" + con.Itoa(totalpages) + "'>" + po.LastPageText + "</a></li>"
|
||
}
|
||
rs += "</ul>"
|
||
return rs
|
||
}
|
||
|
||
/**
|
||
* 设置默认值
|
||
*/
|
||
func setDefault(po *PageOptions, totalpages int) *PageOptions {
|
||
if len(po.FirstPageText) <= 0 {
|
||
po.FirstPageText = "首页"
|
||
}
|
||
if len(po.LastPageText) <= 0 {
|
||
po.LastPageText = "尾页"
|
||
}
|
||
if len(po.PrePageText) <= 0 {
|
||
po.PrePageText = "上一页"
|
||
}
|
||
if len(po.NextPageText) <= 0 {
|
||
po.NextPageText = "下一页"
|
||
}
|
||
if po.CurrentPage >= totalpages {
|
||
po.CurrentPage = totalpages
|
||
}
|
||
if po.CurrentPage <= 1 {
|
||
po.CurrentPage = 1
|
||
}
|
||
if po.LinkItemCount == 0 {
|
||
po.LinkItemCount = 10
|
||
}
|
||
if po.PageSize == 0 {
|
||
po.PageSize = 20
|
||
}
|
||
if len(po.ParamName) <= 0 {
|
||
po.ParamName = "pno"
|
||
}
|
||
return po
|
||
}
|
||
|
||
/**
|
||
*判断首页尾页 上一页下一页是否能用
|
||
*/
|
||
func judgeDisable(po *PageOptions, totalpages int, h_f int) string {
|
||
var rs string = ""
|
||
//判断头部
|
||
if h_f == 0 {
|
||
if po.CurrentPage == 1 {
|
||
rs = " "
|
||
}
|
||
} else {
|
||
if po.CurrentPage == totalpages {
|
||
rs = " "
|
||
}
|
||
}
|
||
return rs
|
||
} |