| 537 | } |
| 538 | |
| 539 | func (_g *MetaGroupBy) sqlScan(ctx context.Context, root *MetaQuery, v any) error { |
| 540 | selector := root.sqlQuery(ctx).Select() |
| 541 | aggregation := make([]string, 0, len(_g.fns)) |
| 542 | for _, fn := range _g.fns { |
| 543 | aggregation = append(aggregation, fn(selector)) |
| 544 | } |
| 545 | if len(selector.SelectedColumns()) == 0 { |
| 546 | columns := make([]string, 0, len(*_g.flds)+len(_g.fns)) |
| 547 | for _, f := range *_g.flds { |
| 548 | columns = append(columns, selector.C(f)) |
| 549 | } |
| 550 | columns = append(columns, aggregation...) |
| 551 | selector.Select(columns...) |
| 552 | } |
| 553 | selector.GroupBy(selector.Columns(*_g.flds...)...) |
| 554 | if err := selector.Err(); err != nil { |
| 555 | return err |
| 556 | } |
| 557 | rows := &sql.Rows{} |
| 558 | query, args := selector.Query() |
| 559 | if err := _g.build.driver.Query(ctx, query, args, rows); err != nil { |
| 560 | return err |
| 561 | } |
| 562 | defer rows.Close() |
| 563 | return sql.ScanSlice(rows, v) |
| 564 | } |
| 565 | |
| 566 | // MetaSelect is the builder for selecting fields of Meta entities. |
| 567 | type MetaSelect struct { |