use GetLatestCommitStatuses instead GetLatestCommitStatus to reduce db operations

models/status.go

@@ -6,6 +6,7 @@ package models
 
 import (
 	"container/list"
+	"errors"
 	"fmt"
 	"strings"
 
@@ -15,6 +16,7 @@ import (
 	"code.gitea.io/gitea/modules/util"
 	api "code.gitea.io/sdk/gitea"
 
+	"github.com/go-xorm/builder"
 	"github.com/go-xorm/xorm"
 )
 
@@ -157,6 +159,59 @@ func GetLatestCommitStatus(repo *Repository, sha string, page int) ([]*CommitSta
 	return statuses, x.In("id", ids).Find(&statuses)
 }
 
+// GetLatestCommitStatuses returns all statuses with given repoIDs and shas
+func GetLatestCommitStatuses(repoIDs []int64, shas []string) ([][]*CommitStatus, error) {
+	if len(repoIDs) != len(shas) {
+		return nil, errors.New("parameter repoIDs should have the same size of shas")
+	}
+
+	var results = make([]struct {
+		ID     int64
+		RepoID int64
+	}, 0, 10*len(repoIDs))
+
+	var cond = builder.NewCond()
+	for i := 0; i < len(repoIDs); i++ {
+		cond = cond.Or(builder.Eq{
+			"repo_id": repoIDs[i],
+			"sha":     shas[i],
+		})
+	}
+
+	err := x.Table(&CommitStatus{}).
+		Where(cond).
+		Select("max( id ) as id, repo_id").
+		GroupBy("context").OrderBy("max( id ) desc").Find(&results)
+	if err != nil {
+		return nil, err
+	}
+
+	var returns = make([][]*CommitStatus, len(repoIDs))
+	if len(results) == 0 {
+		return returns, nil
+	}
+
+	var ids = make([]int64, 0, len(results))
+	var repoIDsMap = make(map[int64][]int64, len(repoIDs))
+	for _, res := range results {
+		ids = append(ids, res.ID)
+		repoIDsMap[res.RepoID] = append(repoIDsMap[res.RepoID], res.ID)
+	}
+
+	statuses := make(map[int64]*CommitStatus, len(ids))
+	err = x.In("id", ids).Find(&statuses)
+	if err != nil {
+		return nil, err
+	}
+
+	for i := 0; i < len(repoIDs); i++ {
+		for _, id := range repoIDsMap[repoIDs[i]] {
+			returns[i] = append(returns[i], statuses[id])
+		}
+	}
+	return returns, nil
+}
+
 // GetCommitStatus populates a given status for a given commit.
 // NOTE: If ID or Index isn't given, and only Context, TargetURL and/or Description
 //       is given, the CommitStatus created _last_ will be returned.

routers/repo/issue.go

@@ -209,7 +209,9 @@ func Issues(ctx *context.Context) {
 		}
 	}
 
-	var issuesStates = make([]*models.CommitStatus, 0, len(issues))
+	var repoIDs = make([]int64, 0, len(issues))
+	var shas = make([]string, 0, len(issues))
+	var pullIDs = make([]int64, 0, len(issues))
 	// Get posters.
 	for i, issue := range issues {
 		// Check read status
@@ -221,15 +223,28 @@ func Issues(ctx *context.Context) {
 		}
 
 		if issue.IsPull {
-			issue.LoadAttributes()
+			if err := issue.LoadAttributes(); err != nil {
-			statuses, err := models.GetLatestCommitStatus(ctx.Repo.Repository, issue.PullRequest.MergeBase, 0)
+				ctx.ServerError("LoadAttributes", err)
-			if err != nil {
+				return
-				log.Error(3, "GetLatestCommitStatus: %v", err)
 			}
 
-			issuesStates = append(issuesStates, models.CalcCommitStatus(statuses))
+			repoIDs = append(repoIDs, ctx.Repo.Repository.ID)
+			shas = append(shas, issue.PullRequest.MergeBase)
+			pullIDs = append(pullIDs, issue.ID)
 		}
 	}
+
+	commitStatuses, err := models.GetLatestCommitStatuses(repoIDs, shas)
+	if err != nil {
+		ctx.ServerError("GetLatestCommitStatuses", err)
+		return
+	}
+
+	var issuesStates = make(map[int64]*models.CommitStatus, len(issues))
+	for i, statuses := range commitStatuses {
+		issuesStates[pullIDs[i]] = models.CalcCommitStatus(statuses)
+	}
+
 	ctx.Data["Issues"] = issues
 	ctx.Data["IssuesStates"] = issuesStates
 

routers/user/home.go

@@ -12,7 +12,6 @@ import (
 	"code.gitea.io/gitea/models"
 	"code.gitea.io/gitea/modules/base"
 	"code.gitea.io/gitea/modules/context"
-	"code.gitea.io/gitea/modules/log"
 	"code.gitea.io/gitea/modules/setting"
 	"code.gitea.io/gitea/modules/util"
 
@@ -292,21 +291,37 @@ func Issues(ctx *context.Context) {
 		return
 	}
 
-	var issuesStates = make([]*models.CommitStatus, 0, len(issues))
+	var repoIDs = make([]int64, 0, len(issues))
+	var shas = make([]string, 0, len(issues))
+	var pullIDs = make([]int64, 0, len(issues))
 	for _, issue := range issues {
 		issue.Repo = showReposMap[issue.RepoID]
 
 		if issue.IsPull {
-			issue.LoadAttributes()
+			if err := issue.LoadAttributes(); err != nil {
-			statuses, err := models.GetLatestCommitStatus(issue.Repo, issue.PullRequest.MergeBase, 0)
+				ctx.ServerError("LoadAttributes", fmt.Errorf("%v", err))
-			if err != nil {
+				return
-				log.Error(3, "GetLatestCommitStatus: %v", err)
 			}
 
-			issuesStates = append(issuesStates, models.CalcCommitStatus(statuses))
+			repoIDs = append(repoIDs, issue.Repo.ID)
+			shas = append(shas, issue.PullRequest.MergeBase)
+			pullIDs = append(pullIDs, issue.ID)
 		}
 	}
 
+	commitStatuses, err := models.GetLatestCommitStatuses(repoIDs, shas)
+	if err != nil {
+		ctx.ServerError("GetLatestCommitStatuses", err)
+		return
+	}
+
+	var issuesStates = make(map[int64]*models.CommitStatus, len(issues))
+	for i, statuses := range commitStatuses {
+		issuesStates[pullIDs[i]] = models.CalcCommitStatus(statuses)
+	}
+
+	ctx.Data["IssuesStates"] = issuesStates
+
 	issueStats, err := models.GetUserIssueStats(models.UserIssueStatsOptions{
 		UserID:      ctxUser.ID,
 		RepoID:      repoID,

templates/repo/issue/list.tmpl

@@ -187,7 +187,7 @@
 					<div class="ui {{if $issue.IsRead}}black{{else}}green{{end}} label">#{{$issue.Index}}</div>
 					<a class="title has-emoji" href="{{$.Link}}/{{$issue.Index}}">{{$issue.Title}}</a>
 					{{if $issue.IsPull}}
-					{{template "repo/commit_status" (index $.IssuesStates $index)}}
+						{{template "repo/commit_status" (index $.IssuesStates $issue.ID)}}
 					{{end}}
 					{{if $issue.Ref}}
 						<a class="ui label" href="{{$.RepoLink}}/src/branch/{{$issue.Ref}}">{{$issue.Ref}}</a>

templates/user/dashboard/issues.tmpl

@@ -63,7 +63,9 @@
 						<li class="item">
 							<div class="ui label">{{if not $.RepoID}}{{$issue.Repo.FullName}}{{end}}#{{$issue.Index}}</div>
 							<a class="title has-emoji" href="{{AppSubUrl}}/{{$issue.Repo.Owner.Name}}/{{$issue.Repo.Name}}/issues/{{$issue.Index}}">{{$issue.Title}}</a>
-
+							{{if $issue.IsPull}}
+								{{template "repo/commit_status" (index $.IssuesStates $issue.ID)}}
+							{{end}}
 							{{with $issue.Labels}}
 								{{/* If we have any labels, we should show them
 								with a 2.5 line height, this way they don't look