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Use db.ListOptions directly instead of Paginator interface to make iteasier to use and fix performance of /pulls and /issues (#29990) (#30447)

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backport #29990

This PR uses `db.ListOptions` instead of `Paginor` to make the code
simpler.
And it also fixed the performance problem when viewing /pulls or
/issues. Before the counting in fact will also do the search.

Co-authored-by: Jason Song <i@wolfogre.com>
Co-authored-by: silverwind <me@silverwind.io>
This commit is contained in:
Lunny Xiao
2024-04-14 01:44:57 +08:00
committed by GitHub
parent fc4e08f804
commit 09df5c9c7d
8 changed files with 49 additions and 34 deletions
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21
modules/indexer/internal/paginator.go
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@ -10,7 +10,7 @@ import (
)
// ParsePaginator parses a db.Paginator into a skip and limit
func ParsePaginator(paginator db.Paginator, max ...int) (int, int) {
func ParsePaginator(paginator *db.ListOptions, max ...int) (int, int) {
// Use a very large number to indicate no limit
unlimited := math.MaxInt32
if len(max) > 0 {
@ -19,22 +19,15 @@ func ParsePaginator(paginator db.Paginator, max ...int) (int, int) {
}
if paginator == nil || paginator.IsListAll() {
// It shouldn't happen. In actual usage scenarios, there should not be requests to search all.
// But if it does happen, respect it and return "unlimited".
// And it's also useful for testing.
return 0, unlimited
}
// Warning: Do not use GetSkipTake() for *db.ListOptions
// Its implementation could reset the page size with setting.API.MaxResponseItems
if listOptions, ok := paginator.(*db.ListOptions); ok {
if listOptions.Page >= 0 && listOptions.PageSize > 0 {
var start int
if listOptions.Page == 0 {
start = 0
} else {
start = (listOptions.Page - 1) * listOptions.PageSize
}
return start, listOptions.PageSize
}
return 0, unlimited
if paginator.PageSize == 0 {
// Do not return any results when searching, it's used to get the total count only.
return 0, 0
}
return paginator.GetSkipTake()