| // Copyright (C) MongoDB, Inc. 2017-present. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); you may |
| // not use this file except in compliance with the License. You may obtain |
| // a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 |
| |
| package command |
| |
| import ( |
| "errors" |
| |
| "github.com/mongodb/mongo-go-driver/bson" |
| "github.com/mongodb/mongo-go-driver/x/bsonx/bsoncore" |
| "github.com/mongodb/mongo-go-driver/x/network/result" |
| ) |
| |
| // unmarshalFindAndModifyResult turns the provided bson.Reader into a findAndModify result. |
| func unmarshalFindAndModifyResult(rdr bson.Raw) (result.FindAndModify, error) { |
| var res result.FindAndModify |
| |
| val, err := rdr.LookupErr("value") |
| switch { |
| case err == bsoncore.ErrElementNotFound: |
| return result.FindAndModify{}, errors.New("invalid response from server, no value field") |
| case err != nil: |
| return result.FindAndModify{}, err |
| } |
| |
| switch val.Type { |
| case bson.TypeNull: |
| case bson.TypeEmbeddedDocument: |
| res.Value = val.Document() |
| default: |
| return result.FindAndModify{}, errors.New("invalid response from server, 'value' field is not a document") |
| } |
| |
| if val, err := rdr.LookupErr("lastErrorObject", "updatedExisting"); err == nil { |
| b, ok := val.BooleanOK() |
| if ok { |
| res.LastErrorObject.UpdatedExisting = b |
| } |
| } |
| |
| if val, err := rdr.LookupErr("lastErrorObject", "upserted"); err == nil { |
| oid, ok := val.ObjectIDOK() |
| if ok { |
| res.LastErrorObject.Upserted = oid |
| } |
| } |
| return res, nil |
| } |