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37 lines
707 B
Go
37 lines
707 B
Go
// Copyright 2019-present Facebook Inc. All rights reserved.
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// This source code is licensed under the Apache 2.0 license found
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// in the LICENSE file in the root directory of this source tree.
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package schema
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import (
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"entgo.io/ent"
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"entgo.io/ent/schema/edge"
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"entgo.io/ent/schema/field"
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)
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// Node holds the schema definition for the Node entity.
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type Node struct {
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ent.Schema
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}
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// Fields of the Node.
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func (Node) Fields() []ent.Field {
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return []ent.Field{
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field.Int("value"),
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field.Int("prev_id").
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Optional(),
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}
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}
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// Edges of the Node.
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func (Node) Edges() []ent.Edge {
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return []ent.Edge{
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edge.To("next", Node.Type).
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Unique().
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From("prev").
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Field("prev_id").
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Unique(),
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}
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}
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