Set modified via bson marshal and update operators

storage/entity/one.go

@@ -1,7 +1,16 @@
 package entity
 
+import (
+	"encoding/json"
+	"fmt"
+	"time"
+
+	"go.mongodb.org/mongo-driver/bson"
+)
+
 const (
 	Name         = "_id"
+	JSONName     = "name"
 	Relationship = "relationship"
 	Type         = "type"
 	Title        = "title"
@@ -33,3 +42,22 @@ func (o One) Peers() []string {
 	}
 	return names
 }
+
+func (o One) MarshalBSON() ([]byte, error) {
+	if fmt.Sprint(o) != fmt.Sprint(o.Query()) {
+		o.Modified = time.Now().UnixNano()
+	}
+	b, err := json.Marshal(o)
+	if err != nil {
+		return nil, err
+	}
+	m := bson.M{}
+	if err := json.Unmarshal(b, &m); err != nil {
+		return nil, err
+	}
+	if name, ok := m[JSONName]; ok {
+		m[Name] = name
+		delete(m, JSONName)
+	}
+	return bson.Marshal(m)
+}