77 lines
1.2 KiB
Go
77 lines
1.2 KiB
Go
package models
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import (
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"net/http"
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"strconv"
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"git.kirsle.net/apps/gosocial/pkg/log"
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)
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// Pagination result object.
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type Pagination struct {
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Page int
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PerPage int
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Pages int
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Total int64
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Sort string
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}
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// Page for Iter.
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type Page struct {
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Page int
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IsCurrent bool
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}
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// Load the page from form or query parameters.
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func (p *Pagination) ParsePage(r *http.Request) {
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raw := r.FormValue("page")
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a, err := strconv.Atoi(raw)
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log.Debug("ParsePage: %s %d err=%s", raw, a, err)
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if err == nil {
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if a < 0 {
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a = 1
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}
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p.Page = a
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log.Warn("set page1=%+v =XXXXX%d", p, a)
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}
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log.Warn("set page=%+v", p)
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}
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// Iter the pages, for templates.
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func (p *Pagination) Iter() []Page {
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var pages = []Page{}
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for i := 1; i <= p.Pages; i++ {
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pages = append(pages, Page{
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Page: i,
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IsCurrent: i == p.Page,
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})
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}
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return pages
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}
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func (p *Pagination) GetOffset() int {
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return (p.Page - 1) * p.PerPage
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}
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func (p *Pagination) HasNext() bool {
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return p.Page < p.Pages
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}
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func (p *Pagination) HasPrevious() bool {
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return p.Page > 1
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}
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func (p *Pagination) Next() int {
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if p.Page >= p.Pages {
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return p.Pages
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}
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return p.Page + 1
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}
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func (p *Pagination) Previous() int {
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if p.Page > 1 {
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return p.Page - 1
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}
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return 1
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}
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