如何使用猫鼬将特定文档从一个集合转移到另一个集合？

Question

我有两个模型 - LifeMembers 和 AnnualMembers。我想将特定文档从 AnnualMembers 转移到 LifeMembers。所以我使用 findById 从 AnnualMembers 查询文档，然后将其保存到 LifeMembers。但是我在尝试将其保存到 LifeMembers 时不断收到 DocumentNotFoundError。请帮忙。

这是代码：

AnnualMembers.findById(id).then(member=>{
        let life = new LifeMembers(member);
        life.save().then(member=>res.json(member));
                   .catch(err=>console.log(err));
     }).catch(err=>console.log(err));

这是我不断收到的错误：

{ DocumentNotFoundError: No document found for query "{ _id: 5dc194b3fd0be643f45c4edb }" on model "LifeMember"
    at new DocumentNotFoundError (E:\Projects\orsi\node_modules\mongoose\lib\error\notFound.js:34:11)
    at $__handleSave (E:\Projects\orsi\node_modules\mongoose\lib\model.js:371:17)
    at E:\Projects\orsi\node_modules\mongoose\lib\model.js:303:9
    at result (E:\Projects\orsi\node_modules\mongodb\lib\operations\execute_operation.js:75:17)
    at session.endSession (E:\Projects\orsi\node_modules\mongodb\lib\operations\execute_operation.js:64:11)
    at ClientSession.endSession (E:\Projects\orsi\node_modules\mongodb\lib\core\sessions.js:135:41)
    at executeCallback (E:\Projects\orsi\node_modules\mongodb\lib\operations\execute_operation.js:59:17)
    at updateCallback (E:\Projects\orsi\node_modules\mongodb\lib\operations\update_one.js:41:3)
    at updateDocuments (E:\Projects\orsi\node_modules\mongodb\lib\operations\update_one.js:24:64)
    at handleCallback (E:\Projects\orsi\node_modules\mongodb\lib\utils.js:129:55)
    at coll.s.topology.update (E:\Projects\orsi\node_modules\mongodb\lib\operations\common_functions.js:375:5)
    at handler (E:\Projects\orsi\node_modules\mongodb\lib\core\sdam\topology.js:1000:24)
    at wireProtocol.(anonymous function) (E:\Projects\orsi\node_modules\mongodb\lib\core\sdam\server.js:457:5)
    at E:\Projects\orsi\node_modules\mongodb\lib\core\connection\pool.js:408:18
    at process._tickCallback (internal/process/next_tick.js:61:11)
  message:
   'No document found for query "{ _id: 5dc194b3fd0be643f45c4edb }" on model "LifeMember"',
  name: 'DocumentNotFoundError',
  result:
   CommandResult {
     result:
      { n: 0,
        nModified: 0,
        opTime: [Object],
        electionId: 7fffffff0000000000000004,
        ok: 1,
        operationTime: [Timestamp],
        '$clusterTime': [Object] },
     connection:
      Connection {
        domain: null,
        _events: [Object],
        _eventsCount: 5,
        _maxListeners: undefined,
        id: 1,
        options: [Object],
        logger: [Logger],
        bson: BSON {},
        tag: undefined,
        maxBsonMessageSize: 67108864,
        port: 27017,
        host: 'cluster0-shard-00-01-pcn5n.gcp.mongodb.net',
        socketTimeout: 360000,
        keepAlive: true,
        keepAliveInitialDelay: 300000,
        connectionTimeout: 30000,
        responseOptions: [Object],
        flushing: false,
        queue: [],
        writeStream: null,
        destroyed: false,
        hashedName: '2d8e7dfad852d7e83e92f54b67929766ab731839',
        workItems: [],
        socket: [TLSSocket],
        buffer: null,
        sizeOfMessage: 0,
        bytesRead: 0,
        stubBuffer: null,
        ismaster: [Object],
        lastIsMasterMS: 801 },
     message:
      BinMsg {
        parsed: true,
        raw:
         <Buffer f5 00 00 00 52 ed 45 01 0b 00 00 00 dd 07 00 00 00 00 00 00 00 e0 00 00 00 10 6e 00 00 00 00 00 10 6e 4d 6f 64 69 66 69 65 64 00 00 00 00 00 03 6f 70 ... >,
        data:
         <Buffer 00 00 00 00 00 e0 00 00 00 10 6e 00 00 00 00 00 10 6e 4d 6f 64 69 66 69 65 64 00 00 00 00 00 03 6f 70 54 69 6d 65 00 1c 00 00 00 11 74 73 00 01 00 00 ... >,
        bson: BSON {},
        opts: [Object],
        length: 245,
        requestId: 21359954,
        responseTo: 11,
        opCode: 2013,
        fromCompressed: undefined,
        responseFlags: 0,
        checksumPresent: false,
        moreToCome: false,
        exhaustAllowed: false,
        promoteLongs: true,
        promoteValues: true,
        promoteBuffers: false,
        documents: [Array],
        index: 229,
        hashedName: '2d8e7dfad852d7e83e92f54b67929766ab731839' },
     modifiedCount: 0,
     upsertedId: null,
     upsertedCount: 0,
     matchedCount: 0,
     '$where': { _id: 5dc194b3fd0be643f45c4edb } },
  numAffected: 0,
  filter: { _id: 5dc194b3fd0be643f45c4edb },
  query: { _id: 5dc194b3fd0be643f45c4edb } }

Answer 1

问题已解决。使用 findById() 进行查询时使用了 lean() 方法： AnnualMembers.findById(id).lean().then(member=>{/*...*/})

如何使用猫鼬将特定文档从一个集合转移到另一个集合？

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