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// Copyright 2021 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 util
import "reflect"
// PaginateSlice cut a slice as per pagination options
// if page = 0 it do not paginate
func PaginateSlice(list interface{}, page, pageSize int) interface{} {
if page <= 0 || pageSize <= 0 {
return list
}
if reflect.TypeOf(list).Kind() != reflect.Slice {
return list
}
listValue := reflect.ValueOf(list)
page--
if page*pageSize >= listValue.Len() {
return listValue.Slice(listValue.Len(), listValue.Len()).Interface()
}
listValue = listValue.Slice(page*pageSize, listValue.Len())
if listValue.Len() > pageSize {
return listValue.Slice(0, pageSize).Interface()
}
return listValue.Interface()
}
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