301 lines
11 KiB
Go
301 lines
11 KiB
Go
package sqlite
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import (
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"context"
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"database/sql"
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"fmt"
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"strings"
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"github.com/pkg/errors"
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msqlite "modernc.org/sqlite"
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sqlite3 "modernc.org/sqlite/lib"
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"github.com/usememos/memos/store"
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)
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func (d *DB) CreateSpace(ctx context.Context, create *store.Space, creatorID int32) (*store.Space, error) {
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tx, err := d.db.BeginTx(ctx, nil)
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if err != nil {
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return nil, errors.Wrap(err, "failed to start space create transaction")
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}
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defer func() { _ = tx.Rollback() }()
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if err := requireSQLiteActiveUser(ctx, tx, creatorID); err != nil {
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return nil, err
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}
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fields := []string{"uid", "title", "description"}
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values := []string{"?", "?", "?"}
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args := []any{create.UID, create.Title, create.Description}
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query := "INSERT INTO space (" + strings.Join(fields, ", ") + ") VALUES (" + strings.Join(values, ", ") + ") RETURNING id, uid, title, description"
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space := &store.Space{}
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if err := tx.QueryRowContext(ctx, query, args...).Scan(&space.ID, &space.UID, &space.Title, &space.Description); err != nil {
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if isSQLiteUniqueViolation(err) {
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return nil, store.ErrSpaceAlreadyExists
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}
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return nil, errors.Wrap(err, "failed to create space")
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}
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if _, err := tx.ExecContext(ctx, "INSERT INTO space_member (space_id, user_id, role) VALUES (?, ?, ?)", space.ID, creatorID, store.SpaceMemberRoleAdmin); err != nil {
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return nil, errors.Wrap(err, "failed to create initial space admin")
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}
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if err := tx.Commit(); err != nil {
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return nil, errors.Wrap(err, "failed to commit space create transaction")
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}
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return space, nil
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}
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func (d *DB) ListSpaces(ctx context.Context, find *store.FindSpace) ([]*store.Space, error) {
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where, args := []string{"1 = 1"}, []any{}
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if find.ID != nil {
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where, args = append(where, "space.id = ?"), append(args, *find.ID)
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}
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if find.UID != nil {
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where, args = append(where, "space.uid = ?"), append(args, *find.UID)
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}
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if find.MemberUserID != nil {
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where, args = append(where, "EXISTS (SELECT 1 FROM space_member sm JOIN user u ON u.id = sm.user_id WHERE sm.space_id = space.id AND sm.user_id = ? AND sm.role IN ('ADMIN', 'USER') AND u.row_status = 'NORMAL')"), append(args, *find.MemberUserID)
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}
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query := `SELECT space.id, space.uid, space.title, space.description
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FROM space WHERE ` + strings.Join(where, " AND ") + ` ORDER BY space.id DESC`
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query = appendSQLiteLimit(query, find.Limit, find.Offset)
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rows, err := d.db.QueryContext(ctx, query, args...)
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if err != nil {
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return nil, err
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}
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defer rows.Close()
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spaces := []*store.Space{}
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for rows.Next() {
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space := &store.Space{}
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if err := rows.Scan(&space.ID, &space.UID, &space.Title, &space.Description); err != nil {
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return nil, err
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}
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spaces = append(spaces, space)
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}
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return spaces, rows.Err()
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}
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func (d *DB) UpdateSpace(ctx context.Context, update *store.UpdateSpace, actorUserID int32) (*store.Space, error) {
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tx, err := d.db.BeginTx(ctx, nil)
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if err != nil {
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return nil, err
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}
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defer func() { _ = tx.Rollback() }()
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if err := authorizeSQLiteSpaceAdmin(ctx, tx, update.ID, actorUserID); err != nil {
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return nil, err
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}
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sets, args := []string{}, []any{}
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if update.Title != nil {
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sets, args = append(sets, "title = ?"), append(args, *update.Title)
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}
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if update.Description != nil {
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sets, args = append(sets, "description = ?"), append(args, *update.Description)
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}
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args = append(args, update.ID)
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query := `UPDATE space SET ` + strings.Join(sets, ", ") + ` WHERE id = ?
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RETURNING id, uid, title, description`
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space := &store.Space{}
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if err := tx.QueryRowContext(ctx, query, args...).Scan(&space.ID, &space.UID, &space.Title, &space.Description); err != nil {
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return nil, err
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}
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if err := tx.Commit(); err != nil {
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return nil, err
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}
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return space, nil
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}
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func (d *DB) CreateSpaceMember(ctx context.Context, create *store.SpaceMember, actorUserID int32) (*store.SpaceMember, error) {
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tx, err := d.db.BeginTx(ctx, nil)
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if err != nil {
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return nil, err
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}
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defer func() { _ = tx.Rollback() }()
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if err := authorizeSQLiteSpaceAdmin(ctx, tx, create.SpaceID, actorUserID); err != nil {
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return nil, err
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}
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if err := requireSQLiteActiveUser(ctx, tx, create.UserID); err != nil {
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return nil, err
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}
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query := `INSERT INTO space_member (space_id, user_id, role) VALUES (?, ?, ?)
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RETURNING space_id, user_id, role`
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member := &store.SpaceMember{}
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if err := tx.QueryRowContext(ctx, query, create.SpaceID, create.UserID, create.Role).Scan(&member.SpaceID, &member.UserID, &member.Role); err != nil {
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if isSQLiteUniqueViolation(err) {
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return nil, store.ErrSpaceMemberAlreadyExists
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}
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return nil, err
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}
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if err := tx.Commit(); err != nil {
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return nil, err
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}
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return member, nil
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}
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func (d *DB) ListSpaceMembers(ctx context.Context, find *store.FindSpaceMember) ([]*store.SpaceMember, error) {
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where, args := []string{
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"space_member.role IN ('ADMIN', 'USER')",
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"EXISTS (SELECT 1 FROM space member_space WHERE member_space.id = space_member.space_id)",
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"EXISTS (SELECT 1 FROM user member_user WHERE member_user.id = space_member.user_id AND member_user.row_status = 'NORMAL')",
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}, []any{}
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if find.SpaceID != nil {
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where, args = append(where, "space_id = ?"), append(args, *find.SpaceID)
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}
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if find.UserID != nil {
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where, args = append(where, "user_id = ?"), append(args, *find.UserID)
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}
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if find.ViewerUserID != nil {
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where, args = append(where, "EXISTS (SELECT 1 FROM space_member viewer JOIN user viewer_user ON viewer_user.id = viewer.user_id WHERE viewer.space_id = space_member.space_id AND viewer.user_id = ? AND viewer.role IN ('ADMIN', 'USER') AND viewer_user.row_status = 'NORMAL')"), append(args, *find.ViewerUserID)
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}
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query := `SELECT space_id, user_id, role FROM space_member
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WHERE ` + strings.Join(where, " AND ") + ` ORDER BY user_id ASC`
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query = appendSQLiteLimit(query, find.Limit, find.Offset)
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rows, err := d.db.QueryContext(ctx, query, args...)
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if err != nil {
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return nil, err
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}
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defer rows.Close()
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members := []*store.SpaceMember{}
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for rows.Next() {
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member := &store.SpaceMember{}
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if err := rows.Scan(&member.SpaceID, &member.UserID, &member.Role); err != nil {
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return nil, err
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}
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members = append(members, member)
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}
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return members, rows.Err()
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}
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func (d *DB) UpdateSpaceMember(ctx context.Context, update *store.UpdateSpaceMember, actorUserID int32) (*store.SpaceMember, error) {
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tx, err := d.db.BeginTx(ctx, nil)
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if err != nil {
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return nil, err
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}
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defer func() { _ = tx.Rollback() }()
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if err := authorizeSQLiteSpaceAdmin(ctx, tx, update.SpaceID, actorUserID); err != nil {
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return nil, err
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}
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if err := requireSQLiteActiveUser(ctx, tx, update.UserID); err != nil {
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return nil, err
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}
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var currentRole store.SpaceMemberRole
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if err := tx.QueryRowContext(ctx, "SELECT role FROM space_member WHERE space_id = ? AND user_id = ?", update.SpaceID, update.UserID).Scan(¤tRole); err != nil {
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if errors.Is(err, sql.ErrNoRows) {
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return nil, store.ErrSpaceMemberNotFound
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}
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return nil, err
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}
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if currentRole == store.SpaceMemberRoleAdmin && update.Role != nil && *update.Role != store.SpaceMemberRoleAdmin {
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var count int
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if err := tx.QueryRowContext(ctx, "SELECT COUNT(*) FROM space_member sm JOIN user u ON u.id = sm.user_id WHERE sm.space_id = ? AND sm.role = ? AND u.row_status = 'NORMAL'", update.SpaceID, store.SpaceMemberRoleAdmin).Scan(&count); err != nil {
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return nil, err
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}
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if count <= 1 {
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return nil, store.ErrLastSpaceAdmin
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}
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}
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sets, args := []string{}, []any{}
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if update.Role != nil {
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sets, args = append(sets, "role = ?"), append(args, *update.Role)
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}
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args = append(args, update.SpaceID, update.UserID)
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query := `UPDATE space_member SET ` + strings.Join(sets, ", ") + ` WHERE space_id = ? AND user_id = ?
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RETURNING space_id, user_id, role`
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member := &store.SpaceMember{}
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if err := tx.QueryRowContext(ctx, query, args...).Scan(&member.SpaceID, &member.UserID, &member.Role); err != nil {
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return nil, err
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}
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if err := tx.Commit(); err != nil {
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return nil, err
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}
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return member, nil
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}
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func (d *DB) DeleteSpaceMember(ctx context.Context, delete *store.DeleteSpaceMember, actorUserID int32) error {
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tx, err := d.db.BeginTx(ctx, nil)
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if err != nil {
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return err
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}
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defer func() { _ = tx.Rollback() }()
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var spaceID int32
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if err := tx.QueryRowContext(ctx, "SELECT id FROM space WHERE id = ?", delete.SpaceID).Scan(&spaceID); err != nil {
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if errors.Is(err, sql.ErrNoRows) {
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return store.ErrSpaceNotFound
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}
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return err
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}
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if actorUserID != delete.UserID {
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var actorRole store.SpaceMemberRole
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if err := tx.QueryRowContext(ctx, "SELECT sm.role FROM space_member sm JOIN user u ON u.id = sm.user_id WHERE sm.space_id = ? AND sm.user_id = ? AND u.row_status = 'NORMAL'", delete.SpaceID, actorUserID).Scan(&actorRole); errors.Is(err, sql.ErrNoRows) {
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return store.ErrSpacePermissionDenied
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} else if err != nil {
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return err
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} else if actorRole != store.SpaceMemberRoleAdmin {
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return store.ErrSpacePermissionDenied
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}
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}
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var role store.SpaceMemberRole
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var targetStatus sql.NullString
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if err := tx.QueryRowContext(ctx, "SELECT sm.role, u.row_status FROM space_member sm LEFT JOIN user u ON u.id = sm.user_id WHERE sm.space_id = ? AND sm.user_id = ?", delete.SpaceID, delete.UserID).Scan(&role, &targetStatus); err != nil {
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if errors.Is(err, sql.ErrNoRows) {
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return store.ErrSpaceMemberNotFound
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}
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return err
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}
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if role == store.SpaceMemberRoleAdmin && targetStatus.Valid && store.RowStatus(targetStatus.String) == store.Normal {
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var count int
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if err := tx.QueryRowContext(ctx, "SELECT COUNT(*) FROM space_member sm JOIN user u ON u.id = sm.user_id WHERE sm.space_id = ? AND sm.role = ? AND u.row_status = 'NORMAL'", delete.SpaceID, store.SpaceMemberRoleAdmin).Scan(&count); err != nil {
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return err
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}
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if count <= 1 {
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return store.ErrLastSpaceAdmin
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}
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}
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if _, err := tx.ExecContext(ctx, "DELETE FROM space_member WHERE space_id = ? AND user_id = ?", delete.SpaceID, delete.UserID); err != nil {
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return err
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}
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return tx.Commit()
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}
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func appendSQLiteLimit(query string, limit, offset *int) string {
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if limit != nil {
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query = fmt.Sprintf("%s LIMIT %d", query, *limit)
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if offset != nil {
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query = fmt.Sprintf("%s OFFSET %d", query, *offset)
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}
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}
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return query
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}
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func authorizeSQLiteSpaceAdmin(ctx context.Context, tx dbExecutor, spaceID, actorUserID int32) error {
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var existingSpaceID int32
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if err := tx.QueryRowContext(ctx, "SELECT id FROM space WHERE id = ?", spaceID).Scan(&existingSpaceID); err != nil {
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if errors.Is(err, sql.ErrNoRows) {
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return store.ErrSpaceNotFound
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}
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return err
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}
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var role store.SpaceMemberRole
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if err := tx.QueryRowContext(ctx, "SELECT sm.role FROM space_member sm JOIN user u ON u.id = sm.user_id WHERE sm.space_id = ? AND sm.user_id = ? AND u.row_status = 'NORMAL'", spaceID, actorUserID).Scan(&role); errors.Is(err, sql.ErrNoRows) {
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return store.ErrSpacePermissionDenied
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} else if err != nil {
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return err
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} else if role != store.SpaceMemberRoleAdmin {
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return store.ErrSpacePermissionDenied
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}
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return nil
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}
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func requireSQLiteActiveUser(ctx context.Context, tx dbExecutor, userID int32) error {
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var rowStatus store.RowStatus
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if err := tx.QueryRowContext(ctx, "SELECT row_status FROM user WHERE id = ?", userID).Scan(&rowStatus); errors.Is(err, sql.ErrNoRows) {
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return store.ErrSpaceMemberNotActive
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} else if err != nil {
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return err
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} else if rowStatus != store.Normal {
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return store.ErrSpaceMemberNotActive
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}
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return nil
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}
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func isSQLiteUniqueViolation(err error) bool {
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var sqliteErr *msqlite.Error
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return errors.As(err, &sqliteErr) && (sqliteErr.Code() == sqlite3.SQLITE_CONSTRAINT_UNIQUE || sqliteErr.Code() == sqlite3.SQLITE_CONSTRAINT_PRIMARYKEY)
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}
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