snapshot of https://github.com/ent/ent.git (master, 2026-09-15; blobs > 131072B omitted)

entc/gen/template/dialect/sql/group.tmpl

@@ -0,0 +1,40 @@
+{{/*
+Copyright 2019-present Facebook Inc. All rights reserved.
+This source code is licensed under the Apache 2.0 license found
+in the LICENSE file in the root directory of this source tree.
+*/}}
+
+{{/* gotype: entgo.io/ent/entc/gen.typeScope */}}
+
+{{ define "dialect/sql/group" }}
+{{ $builder := pascal $.Scope.Builder }}
+{{ $receiver := $.Scope.Receiver }}
+
+func ({{ $receiver }} *{{ $builder }}) sqlScan(ctx context.Context, root *{{ $.QueryName }}, v any) error {
+	selector := root.sqlQuery(ctx).Select()
+	aggregation := make([]string, 0, len({{ $receiver}}.fns))
+	for _, fn := range {{ $receiver }}.fns {
+		aggregation = append(aggregation, fn(selector))
+	}
+	{{- /* If no columns were selected, the default selection is the fields used for "group-by", and the aggregation functions.*/}}
+	if len(selector.SelectedColumns()) == 0 {
+		columns := make([]string, 0, len(*{{ $receiver }}.flds) + len({{ $receiver}}.fns))
+		for _, f := range *{{ $receiver }}.flds {
+			columns = append(columns, selector.C(f))
+		}
+		columns = append(columns, aggregation...)
+		selector.Select(columns...)
+	}
+	selector.GroupBy(selector.Columns(*{{ $receiver }}.flds...)...)
+	if err := selector.Err(); err != nil {
+		return err
+	}
+	rows := &sql.Rows{}
+	query, args := selector.Query()
+	if err := {{ $receiver }}.build.driver.Query(ctx, query, args, rows); err != nil {
+		return err
+	}
+	defer rows.Close()
+	return sql.ScanSlice(rows, v)
+}
+{{ end }}