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

examples/migration/ent/schema/card.go

@@ -0,0 +1,55 @@
+// 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/dialect/entsql"
+	"entgo.io/ent/schema"
+	"entgo.io/ent/schema/edge"
+	"entgo.io/ent/schema/field"
+)
+
+// Card holds the schema definition for the Card entity.
+type Card struct {
+	ent.Schema
+}
+
+// Fields of the Card.
+func (Card) Fields() []ent.Field {
+	return []ent.Field{
+		field.String("type").
+			Default("unknown"),
+		field.String("number_hash"),
+		field.String("cvv_hash"),
+		field.Time("expires_at").
+			Optional(),
+		field.Int("owner_id").
+			Default(0),
+	}
+}
+
+// Edges of the Card.
+func (Card) Edges() []ent.Edge {
+	return []ent.Edge{
+		edge.From("owner", User.Type).
+			Ref("cards").
+			Unique().
+			Required().
+			Field("owner_id"),
+		edge.To("payments", Payment.Type),
+	}
+}
+
+// Annotations of the Card.
+func (Card) Annotations() []schema.Annotation {
+	return []schema.Annotation{
+		// Named check constraints are compared by their name.
+		// Thus, the definition does not need to be normalized.
+		entsql.Checks(map[string]string{
+			"number_hash_length": "(LENGTH(`number_hash`) = 16)",
+		}),
+	}
+}