Populate Repository.Owner in list/get store queries

ListReposVisible, GetRepositoryByName, and GetRepositoryByID left
Repository.Owner as nil because they only selected repository columns.
LEFT JOIN users in all three and populate Owner, so the API (and the
web UI's repositories table) can show the owner's username.

server/store/repos.go

@@ -24,11 +24,13 @@ func (s *Store) CreateRepository(ctx context.Context, name, ownerUserID string,
 }
 
 // ListReposVisible returns repositories visible to userID: owned, public, or
-// where the user is a member.
+// where the user is a member. Each repository's Owner is populated.
 func (s *Store) ListReposVisible(ctx context.Context, userID string) ([]*models.Repository, error) {
 	rows, err := s.db.QueryContext(ctx, `
-		SELECT DISTINCT r.id, r.name, r.owner_user_id, r.visibility, r.description, r.created_at, r.updated_at
+		SELECT DISTINCT r.id, r.name, r.owner_user_id, r.visibility, r.description, r.created_at, r.updated_at,
+			u.id, u.username, u.is_admin, u.created_at, u.updated_at
 		FROM repositories r
+		LEFT JOIN users u ON u.id = r.owner_user_id
 		WHERE r.owner_user_id = ?
 		   OR r.visibility = 'public'
 		   OR EXISTS (SELECT 1 FROM repository_members m WHERE m.repository_id = r.id AND m.user_id = ?)
@@ -40,9 +42,25 @@ func (s *Store) ListReposVisible(ctx context.Context, userID string) ([]*models.
 	var out []*models.Repository
 	for rows.Next() {
 		r := &models.Repository{}
-		if err := rows.Scan(&r.ID, &r.Name, &r.OwnerUserID, &r.Visibility, &r.Description, &r.CreatedAt, &r.UpdatedAt); err != nil {
+		var (
+			ownerID      sql.NullString
+			ownerUser    sql.NullString
+			ownerAdmin   sql.NullBool
+			ownerCreated sql.NullString
+			ownerUpdated sql.NullString
+		)
+		if err := rows.Scan(
+			&r.ID, &r.Name, &r.OwnerUserID, &r.Visibility, &r.Description, &r.CreatedAt, &r.UpdatedAt,
+			&ownerID, &ownerUser, &ownerAdmin, &ownerCreated, &ownerUpdated,
+		); err != nil {
 			return nil, err
 		}
+		if ownerID.Valid {
+			r.Owner = &models.User{
+				ID: ownerID.String, Username: ownerUser.String, IsAdmin: ownerAdmin.Bool,
+				CreatedAt: ownerCreated.String, UpdatedAt: ownerUpdated.String,
+			}
+		}
 		out = append(out, r)
 	}
 	return out, rows.Err()
@@ -79,31 +97,53 @@ func (s *Store) DeleteRepository(ctx context.Context, id string) error {
 	return nil
 }
 
-// GetRepositoryByName returns a repository by its unique name.
+// GetRepositoryByName returns a repository by its unique name, with Owner populated.
 func (s *Store) GetRepositoryByName(ctx context.Context, name string) (*models.Repository, error) {
 	row := s.db.QueryRowContext(ctx,
-		`SELECT id, name, owner_user_id, visibility, description, created_at, updated_at
+		`SELECT r.id, r.name, r.owner_user_id, r.visibility, r.description, r.created_at, r.updated_at,
-		 FROM repositories WHERE name = ?`, name)
+			u.id, u.username, u.is_admin, u.created_at, u.updated_at
+		 FROM repositories r
+		 LEFT JOIN users u ON u.id = r.owner_user_id
+		 WHERE r.name = ?`, name)
 	return scanRepo(row)
 }
 
-// GetRepositoryByID returns a repository by id.
+// GetRepositoryByID returns a repository by id, with Owner populated.
 func (s *Store) GetRepositoryByID(ctx context.Context, id string) (*models.Repository, error) {
 	row := s.db.QueryRowContext(ctx,
-		`SELECT id, name, owner_user_id, visibility, description, created_at, updated_at
+		`SELECT r.id, r.name, r.owner_user_id, r.visibility, r.description, r.created_at, r.updated_at,
-		 FROM repositories WHERE id = ?`, id)
+			u.id, u.username, u.is_admin, u.created_at, u.updated_at
+		 FROM repositories r
+		 LEFT JOIN users u ON u.id = r.owner_user_id
+		 WHERE r.id = ?`, id)
 	return scanRepo(row)
 }
 
 func scanRepo(row *sql.Row) (*models.Repository, error) {
 	r := &models.Repository{}
-	err := row.Scan(&r.ID, &r.Name, &r.OwnerUserID, &r.Visibility, &r.Description, &r.CreatedAt, &r.UpdatedAt)
+	var (
+		ownerID      sql.NullString
+		ownerUser    sql.NullString
+		ownerAdmin   sql.NullBool
+		ownerCreated sql.NullString
+		ownerUpdated sql.NullString
+	)
+	err := row.Scan(
+		&r.ID, &r.Name, &r.OwnerUserID, &r.Visibility, &r.Description, &r.CreatedAt, &r.UpdatedAt,
+		&ownerID, &ownerUser, &ownerAdmin, &ownerCreated, &ownerUpdated,
+	)
 	if isErrNoRows(err) {
 		return nil, ErrNotFound
 	}
 	if err != nil {
 		return nil, err
 	}
+	if ownerID.Valid {
+		r.Owner = &models.User{
+			ID: ownerID.String, Username: ownerUser.String, IsAdmin: ownerAdmin.Bool,
+			CreatedAt: ownerCreated.String, UpdatedAt: ownerUpdated.String,
+		}
+	}
 	return r, nil
 }