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Fix: unstable sort skips/duplicates issues across pages (#18095)

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When viewing issues in sorted order, some issues are duplicated across
pages and some are missing.  This is caused by the lack of tie-breakers
in database queries, making pagination inconsistent.

Co-authored-by: Lauris BH <lauris@nix.lv>
Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>
This commit is contained in:
DuckDuckWhale 2021-12-29 03:44:34 -08:00 committed by GitHub
parent de3216ee55
commit 484fe075f4
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GPG key ID: 4AEE18F83AFDEB23
1 changed files with 18 additions and 10 deletions
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28
models/issue.go
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@ -1145,17 +1145,17 @@ type IssuesOptions struct {
func sortIssuesSession(sess *xorm.Session, sortType string, priorityRepoID int64) {
switch sortType {
case "oldest":
sess.Asc("issue.created_unix")
sess.Asc("issue.created_unix").Asc("issue.id")
case "recentupdate":
sess.Desc("issue.updated_unix")
sess.Desc("issue.updated_unix").Desc("issue.created_unix").Desc("issue.id")
case "leastupdate":
sess.Asc("issue.updated_unix")
sess.Asc("issue.updated_unix").Asc("issue.created_unix").Asc("issue.id")
case "mostcomment":
sess.Desc("issue.num_comments")
sess.Desc("issue.num_comments").Desc("issue.created_unix").Desc("issue.id")
case "leastcomment":
sess.Asc("issue.num_comments")
sess.Asc("issue.num_comments").Desc("issue.created_unix").Desc("issue.id")
case "priority":
sess.Desc("issue.priority")
sess.Desc("issue.priority").Desc("issue.created_unix").Desc("issue.id")
case "nearduedate":
// 253370764800 is 01/01/9999 @ 12:00am (UTC)
sess.Join("LEFT", "milestone", "issue.milestone_id = milestone.id").
@ -1163,17 +1163,25 @@ func sortIssuesSession(sess *xorm.Session, sortType string, priorityRepoID int64
"WHEN issue.deadline_unix = 0 AND (milestone.deadline_unix = 0 OR milestone.deadline_unix IS NULL) THEN 253370764800 " +
"WHEN milestone.deadline_unix = 0 OR milestone.deadline_unix IS NULL THEN issue.deadline_unix " +
"WHEN milestone.deadline_unix < issue.deadline_unix OR issue.deadline_unix = 0 THEN milestone.deadline_unix " +
"ELSE issue.deadline_unix END ASC")
"ELSE issue.deadline_unix END ASC").
Desc("issue.created_unix").
Desc("issue.id")
case "farduedate":
sess.Join("LEFT", "milestone", "issue.milestone_id = milestone.id").
OrderBy("CASE " +
"WHEN milestone.deadline_unix IS NULL THEN issue.deadline_unix " +
"WHEN milestone.deadline_unix < issue.deadline_unix OR issue.deadline_unix = 0 THEN milestone.deadline_unix " +
"ELSE issue.deadline_unix END DESC")
"ELSE issue.deadline_unix END DESC").
Desc("issue.created_unix").
Desc("issue.id")
case "priorityrepo":
sess.OrderBy("CASE WHEN issue.repo_id = " + strconv.FormatInt(priorityRepoID, 10) + " THEN 1 ELSE 2 END, issue.created_unix DESC")
sess.OrderBy("CASE " +
"WHEN issue.repo_id = " + strconv.FormatInt(priorityRepoID, 10) + " THEN 1 " +
"ELSE 2 END ASC").
Desc("issue.created_unix").
Desc("issue.id")
default:
sess.Desc("issue.created_unix")
sess.Desc("issue.created_unix").Desc("issue.id")
}
}