forgejo/models/issues/comment_list.go
Lunny Xiao 47a2102694
Performance improvements for pull request list API (#30490)
Fix #30483

---------

Co-authored-by: yp05327 <576951401@qq.com>
Co-authored-by: Giteabot <teabot@gitea.io>
(cherry picked from commit 352a2cae247afa254241f113c5c22b9351f116b9)
2024-06-02 16:26:54 +02:00

490 lines
11 KiB
Go

// Copyright 2018 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package issues
import (
"context"
"code.gitea.io/gitea/models/db"
repo_model "code.gitea.io/gitea/models/repo"
user_model "code.gitea.io/gitea/models/user"
"code.gitea.io/gitea/modules/container"
"code.gitea.io/gitea/modules/log"
)
// CommentList defines a list of comments
type CommentList []*Comment
// LoadPosters loads posters
func (comments CommentList) LoadPosters(ctx context.Context) error {
if len(comments) == 0 {
return nil
}
posterIDs := container.FilterSlice(comments, func(c *Comment) (int64, bool) {
return c.PosterID, c.Poster == nil && c.PosterID > 0
})
posterMaps, err := getPostersByIDs(ctx, posterIDs)
if err != nil {
return err
}
for _, comment := range comments {
comment.Poster = getPoster(comment.PosterID, posterMaps)
}
return nil
}
func (comments CommentList) getLabelIDs() []int64 {
return container.FilterSlice(comments, func(comment *Comment) (int64, bool) {
return comment.LabelID, comment.LabelID > 0
})
}
func (comments CommentList) loadLabels(ctx context.Context) error {
if len(comments) == 0 {
return nil
}
labelIDs := comments.getLabelIDs()
commentLabels := make(map[int64]*Label, len(labelIDs))
left := len(labelIDs)
for left > 0 {
limit := db.DefaultMaxInSize
if left < limit {
limit = left
}
rows, err := db.GetEngine(ctx).
In("id", labelIDs[:limit]).
Rows(new(Label))
if err != nil {
return err
}
for rows.Next() {
var label Label
err = rows.Scan(&label)
if err != nil {
_ = rows.Close()
return err
}
commentLabels[label.ID] = &label
}
_ = rows.Close()
left -= limit
labelIDs = labelIDs[limit:]
}
for _, comment := range comments {
comment.Label = commentLabels[comment.ID]
}
return nil
}
func (comments CommentList) getMilestoneIDs() []int64 {
return container.FilterSlice(comments, func(comment *Comment) (int64, bool) {
return comment.MilestoneID, comment.MilestoneID > 0
})
}
func (comments CommentList) loadMilestones(ctx context.Context) error {
if len(comments) == 0 {
return nil
}
milestoneIDs := comments.getMilestoneIDs()
if len(milestoneIDs) == 0 {
return nil
}
milestoneMaps := make(map[int64]*Milestone, len(milestoneIDs))
left := len(milestoneIDs)
for left > 0 {
limit := db.DefaultMaxInSize
if left < limit {
limit = left
}
err := db.GetEngine(ctx).
In("id", milestoneIDs[:limit]).
Find(&milestoneMaps)
if err != nil {
return err
}
left -= limit
milestoneIDs = milestoneIDs[limit:]
}
for _, issue := range comments {
issue.Milestone = milestoneMaps[issue.MilestoneID]
}
return nil
}
func (comments CommentList) getOldMilestoneIDs() []int64 {
return container.FilterSlice(comments, func(comment *Comment) (int64, bool) {
return comment.OldMilestoneID, comment.OldMilestoneID > 0
})
}
func (comments CommentList) loadOldMilestones(ctx context.Context) error {
if len(comments) == 0 {
return nil
}
milestoneIDs := comments.getOldMilestoneIDs()
if len(milestoneIDs) == 0 {
return nil
}
milestoneMaps := make(map[int64]*Milestone, len(milestoneIDs))
left := len(milestoneIDs)
for left > 0 {
limit := db.DefaultMaxInSize
if left < limit {
limit = left
}
err := db.GetEngine(ctx).
In("id", milestoneIDs[:limit]).
Find(&milestoneMaps)
if err != nil {
return err
}
left -= limit
milestoneIDs = milestoneIDs[limit:]
}
for _, issue := range comments {
issue.OldMilestone = milestoneMaps[issue.MilestoneID]
}
return nil
}
func (comments CommentList) getAssigneeIDs() []int64 {
return container.FilterSlice(comments, func(comment *Comment) (int64, bool) {
return comment.AssigneeID, comment.AssigneeID > 0
})
}
func (comments CommentList) loadAssignees(ctx context.Context) error {
if len(comments) == 0 {
return nil
}
assigneeIDs := comments.getAssigneeIDs()
assignees := make(map[int64]*user_model.User, len(assigneeIDs))
left := len(assigneeIDs)
for left > 0 {
limit := db.DefaultMaxInSize
if left < limit {
limit = left
}
rows, err := db.GetEngine(ctx).
In("id", assigneeIDs[:limit]).
Rows(new(user_model.User))
if err != nil {
return err
}
for rows.Next() {
var user user_model.User
err = rows.Scan(&user)
if err != nil {
rows.Close()
return err
}
assignees[user.ID] = &user
}
_ = rows.Close()
left -= limit
assigneeIDs = assigneeIDs[limit:]
}
for _, comment := range comments {
comment.Assignee = assignees[comment.AssigneeID]
if comment.Assignee == nil {
comment.AssigneeID = user_model.GhostUserID
comment.Assignee = user_model.NewGhostUser()
}
}
return nil
}
// getIssueIDs returns all the issue ids on this comment list which issue hasn't been loaded
func (comments CommentList) getIssueIDs() []int64 {
return container.FilterSlice(comments, func(comment *Comment) (int64, bool) {
return comment.IssueID, comment.Issue == nil
})
}
// Issues returns all the issues of comments
func (comments CommentList) Issues() IssueList {
issues := make(map[int64]*Issue, len(comments))
for _, comment := range comments {
if comment.Issue != nil {
if _, ok := issues[comment.Issue.ID]; !ok {
issues[comment.Issue.ID] = comment.Issue
}
}
}
issueList := make([]*Issue, 0, len(issues))
for _, issue := range issues {
issueList = append(issueList, issue)
}
return issueList
}
// LoadIssues loads issues of comments
func (comments CommentList) LoadIssues(ctx context.Context) error {
if len(comments) == 0 {
return nil
}
issueIDs := comments.getIssueIDs()
issues := make(map[int64]*Issue, len(issueIDs))
left := len(issueIDs)
for left > 0 {
limit := db.DefaultMaxInSize
if left < limit {
limit = left
}
rows, err := db.GetEngine(ctx).
In("id", issueIDs[:limit]).
Rows(new(Issue))
if err != nil {
return err
}
for rows.Next() {
var issue Issue
err = rows.Scan(&issue)
if err != nil {
rows.Close()
return err
}
issues[issue.ID] = &issue
}
_ = rows.Close()
left -= limit
issueIDs = issueIDs[limit:]
}
for _, comment := range comments {
if comment.Issue == nil {
comment.Issue = issues[comment.IssueID]
}
}
return nil
}
func (comments CommentList) getDependentIssueIDs() []int64 {
return container.FilterSlice(comments, func(comment *Comment) (int64, bool) {
if comment.DependentIssue != nil {
return 0, false
}
return comment.DependentIssueID, comment.DependentIssueID > 0
})
}
func (comments CommentList) loadDependentIssues(ctx context.Context) error {
if len(comments) == 0 {
return nil
}
e := db.GetEngine(ctx)
issueIDs := comments.getDependentIssueIDs()
issues := make(map[int64]*Issue, len(issueIDs))
left := len(issueIDs)
for left > 0 {
limit := db.DefaultMaxInSize
if left < limit {
limit = left
}
rows, err := e.
In("id", issueIDs[:limit]).
Rows(new(Issue))
if err != nil {
return err
}
for rows.Next() {
var issue Issue
err = rows.Scan(&issue)
if err != nil {
_ = rows.Close()
return err
}
issues[issue.ID] = &issue
}
_ = rows.Close()
left -= limit
issueIDs = issueIDs[limit:]
}
for _, comment := range comments {
if comment.DependentIssue == nil {
comment.DependentIssue = issues[comment.DependentIssueID]
if comment.DependentIssue != nil {
if err := comment.DependentIssue.LoadRepo(ctx); err != nil {
return err
}
}
}
}
return nil
}
// getAttachmentCommentIDs only return the comment ids which possibly has attachments
func (comments CommentList) getAttachmentCommentIDs() []int64 {
return container.FilterSlice(comments, func(comment *Comment) (int64, bool) {
return comment.ID, comment.Type.HasAttachmentSupport()
})
}
// LoadAttachmentsByIssue loads attachments by issue id
func (comments CommentList) LoadAttachmentsByIssue(ctx context.Context) error {
if len(comments) == 0 {
return nil
}
attachments := make([]*repo_model.Attachment, 0, len(comments)/2)
if err := db.GetEngine(ctx).Where("issue_id=? AND comment_id>0", comments[0].IssueID).Find(&attachments); err != nil {
return err
}
commentAttachmentsMap := make(map[int64][]*repo_model.Attachment, len(comments))
for _, attach := range attachments {
commentAttachmentsMap[attach.CommentID] = append(commentAttachmentsMap[attach.CommentID], attach)
}
for _, comment := range comments {
comment.Attachments = commentAttachmentsMap[comment.ID]
}
return nil
}
// LoadAttachments loads attachments
func (comments CommentList) LoadAttachments(ctx context.Context) (err error) {
if len(comments) == 0 {
return nil
}
attachments := make(map[int64][]*repo_model.Attachment, len(comments))
commentsIDs := comments.getAttachmentCommentIDs()
left := len(commentsIDs)
for left > 0 {
limit := db.DefaultMaxInSize
if left < limit {
limit = left
}
rows, err := db.GetEngine(ctx).
In("comment_id", commentsIDs[:limit]).
Rows(new(repo_model.Attachment))
if err != nil {
return err
}
for rows.Next() {
var attachment repo_model.Attachment
err = rows.Scan(&attachment)
if err != nil {
_ = rows.Close()
return err
}
attachments[attachment.CommentID] = append(attachments[attachment.CommentID], &attachment)
}
_ = rows.Close()
left -= limit
commentsIDs = commentsIDs[limit:]
}
for _, comment := range comments {
comment.Attachments = attachments[comment.ID]
}
return nil
}
func (comments CommentList) getReviewIDs() []int64 {
return container.FilterSlice(comments, func(comment *Comment) (int64, bool) {
return comment.ReviewID, comment.ReviewID > 0
})
}
func (comments CommentList) loadReviews(ctx context.Context) error {
if len(comments) == 0 {
return nil
}
reviewIDs := comments.getReviewIDs()
reviews := make(map[int64]*Review, len(reviewIDs))
if err := db.GetEngine(ctx).In("id", reviewIDs).Find(&reviews); err != nil {
return err
}
for _, comment := range comments {
comment.Review = reviews[comment.ReviewID]
if comment.Review == nil {
// review request which has been replaced by actual reviews doesn't exist in database anymore, so don't log errors for them.
if comment.ReviewID > 0 && comment.Type != CommentTypeReviewRequest {
log.Error("comment with review id [%d] but has no review record", comment.ReviewID)
}
continue
}
// If the comment dismisses a review, we need to load the reviewer to show whose review has been dismissed.
// Otherwise, the reviewer is the poster of the comment, so we don't need to load it.
if comment.Type == CommentTypeDismissReview {
if err := comment.Review.LoadReviewer(ctx); err != nil {
return err
}
}
}
return nil
}
// LoadAttributes loads attributes of the comments, except for attachments and
// comments
func (comments CommentList) LoadAttributes(ctx context.Context) (err error) {
if err = comments.LoadPosters(ctx); err != nil {
return err
}
if err = comments.loadLabels(ctx); err != nil {
return err
}
if err = comments.loadMilestones(ctx); err != nil {
return err
}
if err = comments.loadOldMilestones(ctx); err != nil {
return err
}
if err = comments.loadAssignees(ctx); err != nil {
return err
}
if err = comments.LoadAttachments(ctx); err != nil {
return err
}
if err = comments.loadReviews(ctx); err != nil {
return err
}
if err = comments.LoadIssues(ctx); err != nil {
return err
}
return comments.loadDependentIssues(ctx)
}