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41 lines
1.0 KiB
41 lines
1.0 KiB
// Copyright 2023 The Gitea Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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package internal
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import (
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"math"
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"code.gitea.io/gitea/models/db"
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)
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// ParsePaginator parses a db.Paginator into a skip and limit
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func ParsePaginator(paginator db.Paginator, max ...int) (int, int) {
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// Use a very large number to indicate no limit
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unlimited := math.MaxInt32
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if len(max) > 0 {
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// Some indexer engines have a limit on the page size, respect that
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unlimited = max[0]
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}
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if paginator == nil || paginator.IsListAll() {
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return 0, unlimited
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}
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// Warning: Do not use GetSkipTake() for *db.ListOptions
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// Its implementation could reset the page size with setting.API.MaxResponseItems
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if listOptions, ok := paginator.(*db.ListOptions); ok {
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if listOptions.Page >= 0 && listOptions.PageSize > 0 {
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var start int
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if listOptions.Page == 0 {
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start = 0
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} else {
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start = (listOptions.Page - 1) * listOptions.PageSize
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}
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return start, listOptions.PageSize
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}
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return 0, unlimited
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}
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return paginator.GetSkipTake()
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}
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