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// 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.
package schema
import (
"entgo.io/ent"
"entgo.io/ent/schema/edge"
"entgo.io/ent/schema/field"
)
// Node holds the schema definition for the Node entity.
type Node struct {
ent.Schema
}
// Fields of the Node.
func (Node) Fields() []ent.Field {
return []ent.Field{
field.Int("value").
Default(0),
field.Int("prev_id").
Optional(),
}
}
// Edges of the Node.
func (Node) Edges() []ent.Edge {
return []ent.Edge{
edge.To("next", Node.Type).
Unique().
From("prev").
Field("prev_id").
Unique(),
}
}
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