| 659 | } |
| 660 | |
| 661 | func (gs *GroupSelect) sqlScan(ctx context.Context, root *GroupQuery, v any) error { |
| 662 | selector := root.sqlQuery(ctx) |
| 663 | aggregation := make([]string, 0, len(gs.fns)) |
| 664 | for _, fn := range gs.fns { |
| 665 | aggregation = append(aggregation, fn(selector)) |
| 666 | } |
| 667 | switch n := len(*gs.selector.flds); { |
| 668 | case n == 0 && len(aggregation) > 0: |
| 669 | selector.Select(aggregation...) |
| 670 | case n != 0 && len(aggregation) > 0: |
| 671 | selector.AppendSelect(aggregation...) |
| 672 | } |
| 673 | rows := &sql.Rows{} |
| 674 | query, args := selector.Query() |
| 675 | if err := gs.driver.Query(ctx, query, args, rows); err != nil { |
| 676 | return err |
| 677 | } |
| 678 | defer rows.Close() |
| 679 | return sql.ScanSlice(rows, v) |
| 680 | } |