Fix milestones too many SQL variables bug (#10880)

* Fix milestones too many SQL variables bug

* Fix test

* Don't display repositories with no milestone and fix tests

* Remove unused code and add some comments

5 files changed, 135 insertions, 105 deletions

diff --git a/models/issue_milestone.go b/models/issue_milestone.go
index ba39e6ebc6..6bef35ce6e 100644
--- a/models/issue_milestone.go
+++ b/models/issue_milestone.go
@@ -525,10 +525,12 @@ func DeleteMilestoneByRepoID(repoID, id int64) error {
 	return sess.Commit()
 }
 
-// CountMilestonesByRepoIDs map from repoIDs to number of milestones matching the options`
-func CountMilestonesByRepoIDs(repoIDs []int64, isClosed bool) (map[int64]int64, error) {
+// CountMilestones map from repo conditions to number of milestones matching the options`
+func CountMilestones(repoCond builder.Cond, isClosed bool) (map[int64]int64, error) {
 	sess := x.Where("is_closed = ?", isClosed)
-	sess.In("repo_id", repoIDs)
+	if repoCond.IsValid() {
+		sess.In("repo_id", builder.Select("id").From("repository").Where(repoCond))
+	}
 
 	countsSlice := make([]*struct {
 		RepoID int64
@@ -548,11 +550,21 @@ func CountMilestonesByRepoIDs(repoIDs []int64, isClosed bool) (map[int64]int64,
 	return countMap, nil
 }
 
-// GetMilestonesByRepoIDs returns a list of milestones of given repositories and status.
-func GetMilestonesByRepoIDs(repoIDs []int64, page int, isClosed bool, sortType string) (MilestoneList, error) {
+// CountMilestonesByRepoIDs map from repoIDs to number of milestones matching the options`
+func CountMilestonesByRepoIDs(repoIDs []int64, isClosed bool) (map[int64]int64, error) {
+	return CountMilestones(
+		builder.In("repo_id", repoIDs),
+		isClosed,
+	)
+}
+
+// SearchMilestones search milestones
+func SearchMilestones(repoCond builder.Cond, page int, isClosed bool, sortType string) (MilestoneList, error) {
 	miles := make([]*Milestone, 0, setting.UI.IssuePagingNum)
 	sess := x.Where("is_closed = ?", isClosed)
-	sess.In("repo_id", repoIDs)
+	if repoCond.IsValid() {
+		sess.In("repo_id", builder.Select("id").From("repository").Where(repoCond))
+	}
 	if page > 0 {
 		sess = sess.Limit(setting.UI.IssuePagingNum, (page-1)*setting.UI.IssuePagingNum)
 	}
@@ -574,25 +586,45 @@ func GetMilestonesByRepoIDs(repoIDs []int64, page int, isClosed bool, sortType s
 	return miles, sess.Find(&miles)
 }
 
+// GetMilestonesByRepoIDs returns a list of milestones of given repositories and status.
+func GetMilestonesByRepoIDs(repoIDs []int64, page int, isClosed bool, sortType string) (MilestoneList, error) {
+	return SearchMilestones(
+		builder.In("repo_id", repoIDs),
+		page,
+		isClosed,
+		sortType,
+	)
+}
+
 // MilestonesStats represents milestone statistic information.
 type MilestonesStats struct {
 	OpenCount, ClosedCount int64
 }
 
+// Total returns the total counts of milestones
+func (m MilestonesStats) Total() int64 {
+	return m.OpenCount + m.ClosedCount
+}
+
 // GetMilestonesStats returns milestone statistic information for dashboard by given conditions.
-func GetMilestonesStats(userRepoIDs []int64) (*MilestonesStats, error) {
+func GetMilestonesStats(repoCond builder.Cond) (*MilestonesStats, error) {
 	var err error
 	stats := &MilestonesStats{}
 
-	stats.OpenCount, err = x.Where("is_closed = ?", false).
-		And(builder.In("repo_id", userRepoIDs)).
-		Count(new(Milestone))
+	sess := x.Where("is_closed = ?", false)
+	if repoCond.IsValid() {
+		sess.And(builder.In("repo_id", builder.Select("id").From("repository").Where(repoCond)))
+	}
+	stats.OpenCount, err = sess.Count(new(Milestone))
 	if err != nil {
 		return nil, err
 	}
-	stats.ClosedCount, err = x.Where("is_closed = ?", true).
-		And(builder.In("repo_id", userRepoIDs)).
-		Count(new(Milestone))
+
+	sess = x.Where("is_closed = ?", true)
+	if repoCond.IsValid() {
+		sess.And(builder.In("repo_id", builder.Select("id").From("repository").Where(repoCond)))
+	}
+	stats.ClosedCount, err = sess.Count(new(Milestone))
 	if err != nil {
 		return nil, err
 	}
diff --git a/models/issue_milestone_test.go b/models/issue_milestone_test.go
index 778ebfbda3..607d36c31c 100644
--- a/models/issue_milestone_test.go
+++ b/models/issue_milestone_test.go
@@ -11,6 +11,7 @@ import (
 
 	api "code.gitea.io/gitea/modules/structs"
 	"code.gitea.io/gitea/modules/timeutil"
+	"xorm.io/builder"
 
 	"github.com/stretchr/testify/assert"
 )
@@ -370,7 +371,7 @@ func TestGetMilestonesStats(t *testing.T) {
 	repo1 := AssertExistsAndLoadBean(t, &Repository{ID: 1}).(*Repository)
 	repo2 := AssertExistsAndLoadBean(t, &Repository{ID: 2}).(*Repository)
 
-	milestoneStats, err := GetMilestonesStats([]int64{repo1.ID, repo2.ID})
+	milestoneStats, err := GetMilestonesStats(builder.In("repo_id", []int64{repo1.ID, repo2.ID}))
 	assert.NoError(t, err)
 	assert.EqualValues(t, repo1.NumOpenMilestones+repo2.NumOpenMilestones, milestoneStats.OpenCount)
 	assert.EqualValues(t, repo1.NumClosedMilestones+repo2.NumClosedMilestones, milestoneStats.ClosedCount)
diff --git a/models/repo_list.go b/models/repo_list.go
index 7ceb88f088..1632e64eb9 100644
--- a/models/repo_list.go
+++ b/models/repo_list.go
@@ -163,6 +163,10 @@ type SearchRepoOptions struct {
 	TopicOnly bool
 	// include description in keyword search
 	IncludeDescription bool
+	// None -> include has milestones AND has no milestone
+	// True -> include just has milestones
+	// False -> include just has no milestone
+	HasMilestones util.OptionalBool
 }
 
 //SearchOrderBy is used to sort the result
@@ -294,6 +298,14 @@ func SearchRepositoryCondition(opts *SearchRepoOptions) builder.Cond {
 	if opts.Actor != nil && opts.Actor.IsRestricted {
 		cond = cond.And(accessibleRepositoryCondition(opts.Actor))
 	}
+
+	switch opts.HasMilestones {
+	case util.OptionalBoolTrue:
+		cond = cond.And(builder.Gt{"num_milestones": 0})
+	case util.OptionalBoolFalse:
+		cond = cond.And(builder.Eq{"num_milestones": 0}.Or(builder.IsNull{"num_milestones"}))
+	}
+
 	return cond
 }
 
@@ -301,7 +313,11 @@ func SearchRepositoryCondition(opts *SearchRepoOptions) builder.Cond {
 // it returns results in given range and number of total results.
 func SearchRepository(opts *SearchRepoOptions) (RepositoryList, int64, error) {
 	cond := SearchRepositoryCondition(opts)
+	return SearchRepositoryByCondition(opts, cond, true)
+}
 
+// SearchRepositoryByCondition search repositories by condition
+func SearchRepositoryByCondition(opts *SearchRepoOptions, cond builder.Cond, loadAttributes bool) (RepositoryList, int64, error) {
 	if opts.Page <= 0 {
 		opts.Page = 1
 	}
@@ -326,16 +342,18 @@ func SearchRepository(opts *SearchRepoOptions) (RepositoryList, int64, error) {
 	}
 
 	repos := make(RepositoryList, 0, opts.PageSize)
-	if err = sess.
-		Where(cond).
-		OrderBy(opts.OrderBy.String()).
-		Limit(opts.PageSize, (opts.Page-1)*opts.PageSize).
-		Find(&repos); err != nil {
+	sess.Where(cond).OrderBy(opts.OrderBy.String())
+	if opts.PageSize > 0 {
+		sess.Limit(opts.PageSize, (opts.Page-1)*opts.PageSize)
+	}
+	if err = sess.Find(&repos); err != nil {
 		return nil, 0, fmt.Errorf("Repo: %v", err)
 	}
 
-	if err = repos.loadAttributes(sess); err != nil {
-		return nil, 0, fmt.Errorf("LoadAttributes: %v", err)
+	if loadAttributes {
+		if err = repos.loadAttributes(sess); err != nil {
+			return nil, 0, fmt.Errorf("LoadAttributes: %v", err)
+		}
 	}
 
 	return repos, count, nil
diff --git a/routers/user/home.go b/routers/user/home.go
index e310b97ad6..71a65d6d9f 100644
--- a/routers/user/home.go
+++ b/routers/user/home.go
@@ -25,7 +25,7 @@ import (
 
 	"github.com/keybase/go-crypto/openpgp"
 	"github.com/keybase/go-crypto/openpgp/armor"
-	"github.com/unknwon/com"
+	"xorm.io/builder"
 )
 
 const (
@@ -173,135 +173,114 @@ func Milestones(ctx *context.Context) {
 		return
 	}
 
-	sortType := ctx.Query("sort")
-	page := ctx.QueryInt("page")
+	var (
+		repoOpts = models.SearchRepoOptions{
+			Actor:         ctxUser,
+			OwnerID:       ctxUser.ID,
+			Private:       true,
+			AllPublic:     false,                 // Include also all public repositories of users and public organisations
+			AllLimited:    false,                 // Include also all public repositories of limited organisations
+			HasMilestones: util.OptionalBoolTrue, // Just needs display repos has milestones
+		}
+
+		userRepoCond = models.SearchRepositoryCondition(&repoOpts) // all repo condition user could visit
+		repoCond     = userRepoCond
+		repoIDs      []int64
+
+		reposQuery   = ctx.Query("repos")
+		isShowClosed = ctx.Query("state") == "closed"
+		sortType     = ctx.Query("sort")
+		page         = ctx.QueryInt("page")
+	)
+
 	if page <= 1 {
 		page = 1
 	}
 
-	reposQuery := ctx.Query("repos")
-	isShowClosed := ctx.Query("state") == "closed"
-
-	// Get repositories.
-	var err error
-	var userRepoIDs []int64
-	if ctxUser.IsOrganization() {
-		env, err := ctxUser.AccessibleReposEnv(ctx.User.ID)
-		if err != nil {
-			ctx.ServerError("AccessibleReposEnv", err)
-			return
-		}
-		userRepoIDs, err = env.RepoIDs(1, ctxUser.NumRepos)
-		if err != nil {
-			ctx.ServerError("env.RepoIDs", err)
-			return
-		}
-		userRepoIDs, err = models.FilterOutRepoIdsWithoutUnitAccess(ctx.User, userRepoIDs, models.UnitTypeIssues, models.UnitTypePullRequests)
-		if err != nil {
-			ctx.ServerError("FilterOutRepoIdsWithoutUnitAccess", err)
-			return
-		}
-	} else {
-		userRepoIDs, err = ctxUser.GetAccessRepoIDs(models.UnitTypeIssues, models.UnitTypePullRequests)
-		if err != nil {
-			ctx.ServerError("ctxUser.GetAccessRepoIDs", err)
-			return
-		}
-	}
-	if len(userRepoIDs) == 0 {
-		userRepoIDs = []int64{-1}
-	}
-
-	var repoIDs []int64
 	if len(reposQuery) != 0 {
 		if issueReposQueryPattern.MatchString(reposQuery) {
 			// remove "[" and "]" from string
 			reposQuery = reposQuery[1 : len(reposQuery)-1]
 			//for each ID (delimiter ",") add to int to repoIDs
-			reposSet := false
+
 			for _, rID := range strings.Split(reposQuery, ",") {
 				// Ensure nonempty string entries
 				if rID != "" && rID != "0" {
-					reposSet = true
 					rIDint64, err := strconv.ParseInt(rID, 10, 64)
 					// If the repo id specified by query is not parseable or not accessible by user, just ignore it.
-					if err == nil && com.IsSliceContainsInt64(userRepoIDs, rIDint64) {
+					if err == nil {
 						repoIDs = append(repoIDs, rIDint64)
 					}
 				}
 			}
-			if reposSet && len(repoIDs) == 0 {
-				// force an empty result
-				repoIDs = []int64{-1}
+			if len(repoIDs) > 0 {
+				// Don't just let repoCond = builder.In("id", repoIDs) because user may has no permission on repoIDs
+				// But the original repoCond has a limitation
+				repoCond = repoCond.And(builder.In("id", repoIDs))
 			}
 		} else {
 			log.Warn("issueReposQueryPattern not match with query")
 		}
 	}
 
-	if len(repoIDs) == 0 {
-		repoIDs = userRepoIDs
-	}
-
-	counts, err := models.CountMilestonesByRepoIDs(userRepoIDs, isShowClosed)
+	counts, err := models.CountMilestones(userRepoCond, isShowClosed)
 	if err != nil {
 		ctx.ServerError("CountMilestonesByRepoIDs", err)
 		return
 	}
 
-	milestones, err := models.GetMilestonesByRepoIDs(repoIDs, page, isShowClosed, sortType)
+	milestones, err := models.SearchMilestones(repoCond, page, isShowClosed, sortType)
 	if err != nil {
 		ctx.ServerError("GetMilestonesByRepoIDs", err)
 		return
 	}
 
-	showReposMap := make(map[int64]*models.Repository, len(counts))
-	for rID := range counts {
-		if rID == -1 {
-			break
-		}
-		repo, err := models.GetRepositoryByID(rID)
-		if err != nil {
-			if models.IsErrRepoNotExist(err) {
-				ctx.NotFound("GetRepositoryByID", err)
-				return
-			} else if err != nil {
-				ctx.ServerError("GetRepositoryByID", fmt.Errorf("[%d]%v", rID, err))
-				return
-			}
-		}
-		showReposMap[rID] = repo
-	}
-
-	showRepos := models.RepositoryListOfMap(showReposMap)
-	sort.Sort(showRepos)
-	if err = showRepos.LoadAttributes(); err != nil {
-		ctx.ServerError("LoadAttributes", err)
+	showRepos, _, err := models.SearchRepositoryByCondition(&repoOpts, userRepoCond, false)
+	if err != nil {
+		ctx.ServerError("SearchRepositoryByCondition", err)
 		return
 	}
+	sort.Sort(showRepos)
+
+	for i := 0; i < len(milestones); {
+		for _, repo := range showRepos {
+			if milestones[i].RepoID == repo.ID {
+				milestones[i].Repo = repo
+				break
+			}
+		}
+		if milestones[i].Repo == nil {
+			log.Warn("Cannot find milestone %d 's repository %d", milestones[i].ID, milestones[i].RepoID)
+			milestones = append(milestones[:i], milestones[i+1:]...)
+			continue
+		}
 
-	for _, m := range milestones {
-		m.Repo = showReposMap[m.RepoID]
-		m.RenderedContent = string(markdown.Render([]byte(m.Content), m.Repo.Link(), m.Repo.ComposeMetas()))
-		if m.Repo.IsTimetrackerEnabled() {
-			err := m.LoadTotalTrackedTime()
+		milestones[i].RenderedContent = string(markdown.Render([]byte(milestones[i].Content), milestones[i].Repo.Link(), milestones[i].Repo.ComposeMetas()))
+		if milestones[i].Repo.IsTimetrackerEnabled() {
+			err := milestones[i].LoadTotalTrackedTime()
 			if err != nil {
 				ctx.ServerError("LoadTotalTrackedTime", err)
 				return
 			}
 		}
+		i++
 	}
 
-	milestoneStats, err := models.GetMilestonesStats(repoIDs)
+	milestoneStats, err := models.GetMilestonesStats(repoCond)
 	if err != nil {
 		ctx.ServerError("GetMilestoneStats", err)
 		return
 	}
 
-	totalMilestoneStats, err := models.GetMilestonesStats(userRepoIDs)
-	if err != nil {
-		ctx.ServerError("GetMilestoneStats", err)
-		return
+	var totalMilestoneStats *models.MilestonesStats
+	if len(repoIDs) == 0 {
+		totalMilestoneStats = milestoneStats
+	} else {
+		totalMilestoneStats, err = models.GetMilestonesStats(userRepoCond)
+		if err != nil {
+			ctx.ServerError("GetMilestoneStats", err)
+			return
+		}
 	}
 
 	var pagerCount int
@@ -320,7 +299,7 @@ func Milestones(ctx *context.Context) {
 	ctx.Data["Counts"] = counts
 	ctx.Data["MilestoneStats"] = milestoneStats
 	ctx.Data["SortType"] = sortType
-	if len(repoIDs) != len(userRepoIDs) {
+	if milestoneStats.Total() != totalMilestoneStats.Total() {
 		ctx.Data["RepoIDs"] = repoIDs
 	}
 	ctx.Data["IsShowClosed"] = isShowClosed
diff --git a/routers/user/home_test.go b/routers/user/home_test.go
index 39186d93ee..ff48953d44 100644
--- a/routers/user/home_test.go
+++ b/routers/user/home_test.go
@@ -48,7 +48,7 @@ func TestMilestones(t *testing.T) {
 	assert.EqualValues(t, "furthestduedate", ctx.Data["SortType"])
 	assert.EqualValues(t, 1, ctx.Data["Total"])
 	assert.Len(t, ctx.Data["Milestones"], 1)
-	assert.Len(t, ctx.Data["Repos"], 1)
+	assert.Len(t, ctx.Data["Repos"], 2) // both repo 42 and 1 have milestones and both are owned by user 2
 }
 
 func TestMilestonesForSpecificRepo(t *testing.T) {
@@ -68,5 +68,5 @@ func TestMilestonesForSpecificRepo(t *testing.T) {
 	assert.EqualValues(t, "furthestduedate", ctx.Data["SortType"])
 	assert.EqualValues(t, 1, ctx.Data["Total"])
 	assert.Len(t, ctx.Data["Milestones"], 1)
-	assert.Len(t, ctx.Data["Repos"], 1)
+	assert.Len(t, ctx.Data["Repos"], 2) // both repo 42 and 1 have milestones and both are owned by user 2
 }