case schema.Many2Many:
					association.Error = association.DB.Session(&Session{
						NewDB: true,
					}).Model(child.Interface()).Create(mapv.Interface()).Error

					for _, key := range mapv.MapKeys() {
						k := strings.ToLower(key.String())
						if f, ok := association.Relationship.FieldSchema.FieldsByDBName[k]; ok {
							_ = f.Set(association.DB.Statement.Context, child, mapv.MapIndex(key).Interface())
						}