Show lock owner instead of repo owner on LFS setting page (#31788) (#31817)

Backport #31788 by @wolfogre

Fix #31784.

Before:

<img width="1648" alt="image"
src="https://github.com/user-attachments/assets/03f32545-4a85-42ed-bafc-2b193a5d8023">

After:

<img width="1653" alt="image"
src="https://github.com/user-attachments/assets/e5bcaf93-49cb-421f-aac1-5122bc488b02">

Co-authored-by: Jason Song <i@wolfogre.com>

2 files changed, 92 insertions, 7 deletions

diff --git a/models/git/lfs_lock.go b/models/git/lfs_lock.go
index 2f65833fe3..07ce7d4abf 100644
--- a/models/git/lfs_lock.go
+++ b/models/git/lfs_lock.go
@@ -6,6 +6,7 @@ package git
 import (
 	"context"
 	"errors"
+	"fmt"
 	"strings"
 	"time"
 
@@ -21,11 +22,12 @@ import (
 
 // LFSLock represents a git lfs lock of repository.
 type LFSLock struct {
-	ID      int64     `xorm:"pk autoincr"`
-	RepoID  int64     `xorm:"INDEX NOT NULL"`
-	OwnerID int64     `xorm:"INDEX NOT NULL"`
-	Path    string    `xorm:"TEXT"`
-	Created time.Time `xorm:"created"`
+	ID      int64            `xorm:"pk autoincr"`
+	RepoID  int64            `xorm:"INDEX NOT NULL"`
+	OwnerID int64            `xorm:"INDEX NOT NULL"`
+	Owner   *user_model.User `xorm:"-"`
+	Path    string           `xorm:"TEXT"`
+	Created time.Time        `xorm:"created"`
 }
 
 func init() {
@@ -37,6 +39,35 @@ func (l *LFSLock) BeforeInsert() {
 	l.Path = util.PathJoinRel(l.Path)
 }
 
+// LoadAttributes loads attributes of the lock.
+func (l *LFSLock) LoadAttributes(ctx context.Context) error {
+	// Load owner
+	if err := l.LoadOwner(ctx); err != nil {
+		return fmt.Errorf("load owner: %w", err)
+	}
+
+	return nil
+}
+
+// LoadOwner loads owner of the lock.
+func (l *LFSLock) LoadOwner(ctx context.Context) error {
+	if l.Owner != nil {
+		return nil
+	}
+
+	owner, err := user_model.GetUserByID(ctx, l.OwnerID)
+	if err != nil {
+		if user_model.IsErrUserNotExist(err) {
+			l.Owner = user_model.NewGhostUser()
+			return nil
+		}
+		return err
+	}
+	l.Owner = owner
+
+	return nil
+}
+
 // CreateLFSLock creates a new lock.
 func CreateLFSLock(ctx context.Context, repo *repo_model.Repository, lock *LFSLock) (*LFSLock, error) {
 	dbCtx, committer, err := db.TxContext(ctx)
@@ -94,7 +125,7 @@ func GetLFSLockByID(ctx context.Context, id int64) (*LFSLock, error) {
 }
 
 // GetLFSLockByRepoID returns a list of locks of repository.
-func GetLFSLockByRepoID(ctx context.Context, repoID int64, page, pageSize int) ([]*LFSLock, error) {
+func GetLFSLockByRepoID(ctx context.Context, repoID int64, page, pageSize int) (LFSLockList, error) {
 	e := db.GetEngine(ctx)
 	if page >= 0 && pageSize > 0 {
 		start := 0
@@ -103,7 +134,7 @@ func GetLFSLockByRepoID(ctx context.Context, repoID int64, page, pageSize int) (
 		}
 		e.Limit(pageSize, start)
 	}
-	lfsLocks := make([]*LFSLock, 0, pageSize)
+	lfsLocks := make(LFSLockList, 0, pageSize)
 	return lfsLocks, e.Find(&lfsLocks, &LFSLock{RepoID: repoID})
 }
 
diff --git a/models/git/lfs_lock_list.go b/models/git/lfs_lock_list.go
new file mode 100644
index 0000000000..cab1e61cab
--- /dev/null
+++ b/models/git/lfs_lock_list.go
@@ -0,0 +1,54 @@
+// Copyright 2024 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package git
+
+import (
+	"context"
+	"fmt"
+
+	"code.gitea.io/gitea/models/db"
+	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/container"
+)
+
+// LFSLockList is a list of LFSLock
+type LFSLockList []*LFSLock
+
+// LoadAttributes loads the attributes for the given locks
+func (locks LFSLockList) LoadAttributes(ctx context.Context) error {
+	if len(locks) == 0 {
+		return nil
+	}
+
+	if err := locks.LoadOwner(ctx); err != nil {
+		return fmt.Errorf("load owner: %w", err)
+	}
+
+	return nil
+}
+
+// LoadOwner loads the owner of the locks
+func (locks LFSLockList) LoadOwner(ctx context.Context) error {
+	if len(locks) == 0 {
+		return nil
+	}
+
+	usersIDs := container.FilterSlice(locks, func(lock *LFSLock) (int64, bool) {
+		return lock.OwnerID, true
+	})
+	users := make(map[int64]*user_model.User, len(usersIDs))
+	if err := db.GetEngine(ctx).
+		In("id", usersIDs).
+		Find(&users); err != nil {
+		return fmt.Errorf("find users: %w", err)
+	}
+	for _, v := range locks {
+		v.Owner = users[v.OwnerID]
+		if v.Owner == nil { // not exist
+			v.Owner = user_model.NewGhostUser()
+		}
+	}
+
+	return nil
+}