go__ent_demo/start/ent/schema/group.go

package schema

import (
	"regexp"

	"entgo.io/ent"
	"entgo.io/ent/schema/edge"
	"entgo.io/ent/schema/field"
)

// Group holds the schema definition for the Group entity.
type Group struct {
	ent.Schema
}

// Fields of the Group.
func (Group) Fields() []ent.Field {
	return []ent.Field{
		field.String("name").
			// Regexp validation for group name
			Match(regexp.MustCompile("[a-zA-Z_]+$")),
	}
}

// Edges of the Group.
func (Group) Edges() []ent.Edge {
	return []ent.Edge{
		edge.To("users", User.Type), // cf User.Edges: "groups"
	}
}