feat: ent mixin.

entgo/mixin/creator_id.go

@@ -0,0 +1,21 @@
+package mixin
+
+import (
+	"entgo.io/ent"
+	"entgo.io/ent/schema/field"
+	_mixin "entgo.io/ent/schema/mixin"
+)
+
+type CreatorId struct {
+	_mixin.Schema
+}
+
+func (CreatorId) Fields() []ent.Field {
+	return []ent.Field{
+		field.Uint64("creator_id").
+			Comment("创建者用户ID").
+			Immutable().
+			Optional().
+			Nillable(),
+	}
+}