83 lines
1.3 KiB
Go
83 lines
1.3 KiB
Go
package handlers
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import (
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"fmt"
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"strconv"
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"strings"
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"d7y.io/dragonfly/v2/manager/service"
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"github.com/gin-gonic/gin"
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)
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type Handlers struct {
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service service.REST
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}
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func New(service service.REST) *Handlers {
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return &Handlers{service: service}
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}
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func (h *Handlers) setPaginationDefault(page, perPage *int) {
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if *page == 0 {
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*page = 1
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}
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if *perPage == 0 {
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*perPage = 10
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}
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}
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func (h *Handlers) setPaginationLinkHeader(ctx *gin.Context, page, perPage, totalCount int) {
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totalPage := totalCount / perPage
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if totalPage == 0 {
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totalPage = 1
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}
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var prevPage int
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if page == 1 {
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prevPage = 1
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} else {
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prevPage = page - 1
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}
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var nextPage int
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if page == totalPage {
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nextPage = page
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} else {
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nextPage = page + 1
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}
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var links []string
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for _, v := range []struct {
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Name string
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Page int
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}{
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{
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Name: "prev",
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Page: prevPage,
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},
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{
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Name: "next",
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Page: nextPage,
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},
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{
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Name: "first",
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Page: 1,
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},
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{
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Name: "last",
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Page: totalPage,
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},
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} {
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url := ctx.Request.URL
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query := url.Query()
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query.Set("page", strconv.Itoa(v.Page))
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query.Set("per_page", strconv.Itoa(perPage))
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url.RawQuery = query.Encode()
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links = append(links, fmt.Sprintf("<%s>;rel=%s", url.String(), v.Name))
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}
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ctx.Header("Link", strings.Join(links, ","))
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}
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