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35 lines
815 B
35 lines
815 B
// Copyright 2021 The Gitea Authors. All rights reserved.
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// Use of this source code is governed by a MIT-style
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// license that can be found in the LICENSE file.
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package util
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import "reflect"
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// PaginateSlice cut a slice as per pagination options
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// if page = 0 it do not paginate
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func PaginateSlice(list interface{}, page, pageSize int) interface{} {
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if page <= 0 || pageSize <= 0 {
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return list
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}
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if reflect.TypeOf(list).Kind() != reflect.Slice {
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return list
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}
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listValue := reflect.ValueOf(list)
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page--
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if page*pageSize >= listValue.Len() {
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return listValue.Slice(listValue.Len(), listValue.Len()).Interface()
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}
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listValue = listValue.Slice(page*pageSize, listValue.Len())
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if listValue.Len() > pageSize {
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return listValue.Slice(0, pageSize).Interface()
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}
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return listValue.Interface()
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}
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