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// Copyright 2020 The Gitea Authors. All rights reserved.
// Use of this source code is governed by a MIT-style
// license that can be found in the LICENSE file.
package models
import (
"code.gitea.io/gitea/modules/setting"
"xorm.io/xorm"
)
// ListOptions options to paginate results
type ListOptions struct {
PageSize int
Page int // start from 1
}
func (opts ListOptions) getPaginatedSession() *xorm.Session {
opts.setDefaultValues()
return x.Limit(opts.PageSize, (opts.Page-1)*opts.PageSize)
}
func (opts ListOptions) setSessionPagination(sess *xorm.Session) *xorm.Session {
opts.setDefaultValues()
if opts.PageSize <= 0 {
return sess
}
return sess.Limit(opts.PageSize, (opts.Page-1)*opts.PageSize)
}
func (opts ListOptions) setEnginePagination(e Engine) Engine {
opts.setDefaultValues()
return e.Limit(opts.PageSize, (opts.Page-1)*opts.PageSize)
}
// GetStartEnd returns the start and end of the ListOptions
func (opts ListOptions) GetStartEnd() (start, end int) {
opts.setDefaultValues()
start = (opts.Page - 1) * opts.PageSize
end = start + opts.Page
return
}
func (opts ListOptions) setDefaultValues() {
if opts.PageSize <= 0 {
opts.PageSize = setting.API.DefaultPagingNum
}
if opts.PageSize > setting.API.MaxResponseItems {
opts.PageSize = setting.API.MaxResponseItems
}
if opts.Page <= 0 {
opts.Page = 1
}
}
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