package schema import ( "entgo.io/ent" "entgo.io/ent/schema/edge" "entgo.io/ent/schema/field" ) // Car holds the schema definition for the Car entity. type Car struct { ent.Schema } // Fields of the Car. func (Car) Fields() []ent.Field { return []ent.Field{ field.String("model"), field.Time("registered_at"), } } // Edges of the Car. func (Car) Edges() []ent.Edge { return []ent.Edge{ // create an inverse-edge called "owner" of type `User` // and reference it to the "cars" edge (in User schema) // explicitly using the `Ref` method. edge.From("owner", User.Type). Ref("cars"). // setting the edge to unique, ensure // that a car can have only one owner. Unique(), } }