User specific repoID or xorm builder conditions for issue search (#19475)

* extend models.IssuesOptions to have more specific repo filter options

* use new options

* unrelated refactor

* rm RepoIDs

routers/web/repo/issue.go

@@ -232,7 +232,7 @@ func issues(ctx *context.Context, milestoneID, projectID int64, isPullOption uti
 				Page:     pager.Paginater.Current(),
 				PageSize: setting.UI.IssuePagingNum,
 			},
-			RepoIDs:           []int64{repo.ID},
+			RepoID:            repo.ID,
 			AssigneeID:        assigneeID,
 			PosterID:          posterID,
 			MentionedID:       mentionedID,
@@ -2167,6 +2167,7 @@ func SearchIssues(ctx *context.Context) {
 		opts.TeamID = team.ID
 	}
 
+	repoCond := models.SearchRepositoryCondition(opts)
 	repoIDs, _, err := models.SearchRepositoryIDs(opts)
 	if err != nil {
 		ctx.Error(http.StatusInternalServerError, "SearchRepositoryByName", err.Error())
@@ -2227,7 +2228,7 @@ func SearchIssues(ctx *context.Context) {
 				Page:     ctx.FormInt("page"),
 				PageSize: limit,
 			},
-			RepoIDs:            repoIDs,
+			RepoCond:           repoCond,
 			IsClosed:           isClosed,
 			IssueIDs:           issueIDs,
 			IncludedLabelNames: includedLabelNames,
@@ -2403,7 +2404,7 @@ func ListIssues(ctx *context.Context) {
 	if len(keyword) == 0 || len(issueIDs) > 0 || len(labelIDs) > 0 {
 		issuesOpt := &models.IssuesOptions{
 			ListOptions:       listOptions,
-			RepoIDs:           []int64{ctx.Repo.Repository.ID},
+			RepoID:            ctx.Repo.Repository.ID,
 			IsClosed:          isClosed,
 			IssueIDs:          issueIDs,
 			LabelIDs:          labelIDs,

routers/web/user/home.go

@@ -463,13 +463,7 @@ func buildIssueOverview(ctx *context.Context, unitType unit.Type) {
 			// to check if it's in the team(which possible isn't the case).
 			opts.User = nil
 		}
-		userRepoIDs, _, err := models.SearchRepositoryIDs(repoOpts)
-		if err != nil {
-			ctx.ServerError("models.SearchRepositoryIDs: %v", err)
-			return
-		}
-
-		opts.RepoIDs = userRepoIDs
+		opts.RepoCond = models.SearchRepositoryCondition(repoOpts)
 	}
 
 	// keyword holds the search term entered into the search field.
@@ -533,7 +527,7 @@ func buildIssueOverview(ctx *context.Context, unitType unit.Type) {
 	// Gets set when clicking filters on the issues overview page.
 	repoIDs := getRepoIDs(ctx.FormString("repos"))
 	if len(repoIDs) > 0 {
-		opts.RepoIDs = repoIDs
+		opts.RepoCond = builder.In("issue.repo_id", repoIDs)
 	}
 
 	// ------------------------------