ent/entc/gen/template/dialect/sql/create.tmpl

{{/*
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.
*/}}

{{ define "dialect/sql/create" }}
{{ $builder := pascal $.Scope.Builder }}
{{ $receiver := receiver $builder }}
{{ $mutation := print $receiver ".mutation"  }}

func ({{ $receiver }} *{{ $builder }}) sqlSave(ctx context.Context) (*{{ $.Name }}, error) {
	{{ $.Receiver }}, _spec := {{ $receiver }}.createSpec()
	if err := sqlgraph.CreateNode(ctx, {{ $receiver }}.driver, _spec); err != nil {
		if cerr, ok := isSQLConstraintError(err); ok {
			err = cerr
		}
		return nil, err
	}
	{{- if and $.ID.UserDefined (or $.ID.IsString $.ID.IsUUID) }}
		{{- /* Do nothing, because these 2 types must be supplied by the user. */ -}}
	{{- else }}
		{{- if $.ID.UserDefined }}
			if {{ $.Receiver }}.ID == 0 {
		{{- end }}
			id := _spec.ID.Value.(int64)
			{{ $.Receiver }}.ID = {{ $.ID.Type }}(id)
		{{- if $.ID.UserDefined }}
			}
		{{- end }}
	{{- end }}
	return {{ $.Receiver }}, nil
}

func ({{ $receiver }} *{{ $builder }}) createSpec() (*{{ $.Name }}, *sqlgraph.CreateSpec) {
	var (
		{{ $.Receiver }} = &{{ $.Name }}{config: {{ $receiver }}.config}
		_spec = &sqlgraph.CreateSpec{
			Table: {{ $.Package }}.Table,
			ID: &sqlgraph.FieldSpec{
				Type: field.{{ $.ID.Type.ConstName }},
				Column: {{ $.Package }}.{{ $.ID.Constant }},
			},
		}
	)
	{{- if $.ID.UserDefined }}
		if id, ok := {{ $mutation }}.{{ $.ID.MutationGet }}(); ok {
			{{ $.Receiver }}.ID = id
			_spec.ID.Value = id
		}
	{{- end }}
	{{- range $f := $.Fields }}
		if value, ok := {{ $mutation }}.{{ $f.MutationGet }}(); ok {
			_spec.Fields = append(_spec.Fields, &sqlgraph.FieldSpec{
				Type: field.{{ $f.Type.ConstName }},
				Value: value,
				Column: {{ $.Package }}.{{ $f.Constant }},
			})
			{{ $.Receiver }}.{{ $f.StructField }} = {{ if $f.Nillable }}&{{ end }}value
		}
	{{- end }}
	{{- range $e := $.Edges }}
		if nodes := {{ $mutation }}.{{ $e.StructField }}IDs(); len(nodes) > 0 {
			{{- with extend $ "Edge" $e "Nodes" true "Zero" "nil" }}
				{{ template "dialect/sql/defedge" . }}{{/* defined in sql/update.tmpl */}}
			{{- end }}
			_spec.Edges = append(_spec.Edges, edge)
		}
	{{- end }}
	return {{ $.Receiver }}, _spec
}

{{ end }}