Question

我的目标是： 1.创建一个文档-我需要确保该文档有效，并且实际上已保存到数据库中，因为其_id可能会在同一集合中嵌入其他文档。 2.保存后，我需要针对集合中的所有其他文档运行此文档，以查找哪些文档_id本身嵌入。 3.然后，我想更新此文档并保存。

我已经看了好几个小时的文档。

我了解到，当我编辑保存或提取的文档时，猫鼬会看到更改并触发updateOne（） Mongoose documents track changes. You can modify a document using vanilla JavaScript assignments and Mongoose will convert it into MongoDB update operators.

问题1是在对象上触发的updateOne（）是异步的，如果我运行批量文档创建，则会收到VersionError警告。有没有办法使这个异步/等待？

另一个选项是手动运行updateOne（）。但是文档指出save（）是正确的更新方式。我找不到最佳实践。 The save() function is generally the right way to update a document with Mongoose. With save(), you get full validation and middleware.

在编辑文档时，如何在不触发标准updateOne（）的情况下检索和编辑文档？

尝试1

    // check if already exists
    const existsCheck = await getCard(null, card.name);
    if (existsCheck) {
      throw new Error(`Duplicate item, ${existsCheck.name} already exists: [${existsCheck.id}]`);
    }

    console.log(`Creating card ${card.name}`);
    const baseCard = new Card( card );

    baseCard.synergiespre = stringToArray(baseCard.synergiespre, ',');
    baseCard.antisynergiespre = stringToArray(baseCard.antisynergiespre, ',');
    // baseCard.markModified('synergiespre');
    // baseCard.markModified('antisynergiespre');
    // create card to:
    // 1. Get an id
    // 2. Ensure save() occurs before creating item synergies editing other item synergies
    await baseCard.save();

    const updatedCardData = await compileSynergiesAndAntiSynergies(baseCard);
    baseCard.synergies = await updatedCardData.synergies; // doesnt await
    baseCard.antisynergies = await updatedCardData.antisynergies; // doesnt await

    const returnPopulatedCard = await getCard(baseCard.id);
    console.log('Populated Return');
    console.log(returnPopulatedCard);

    return returnPopulatedCard;

在没有等待的情况下，我收到了VersionError，因为有很多异步更改

尝试2

    // check if already exists
    const existsCheck = await getCard(null, card.name);
    if (existsCheck) {
      throw new Error(`Duplicate item, ${existsCheck.name} already exists: [${existsCheck.id}]`);
    }

    console.log(`Creating card ${card.name}`);
    let baseCard = new Card( card );

    baseCard.synergiespre = stringToArray(baseCard.synergiespre, ',');
    baseCard.antisynergiespre = stringToArray(baseCard.antisynergiespre, ',');
    // baseCard.markModified('synergiespre');
    // baseCard.markModified('antisynergiespre');
    // create card to:
    // 1. Get an id
    // 2. Ensure save() occurs before creating item synergies and editing other item synergies
    baseCard = await baseCard.save();

    const updatedCardData = await compileSynergiesAndAntiSynergies(baseCard);
    baseCard.synergies = await updatedCardData.synergies;
    baseCard.antisynergies = await updatedCardData.antisynergies;
    baseCard = await baseCard.save();

    const returnPopulatedCard = await getCard(baseCard.id);
    console.log('Populated Return');
    console.log(returnPopulatedCard);

    return returnPopulatedCard;

VersionError，因为我尝试按照建议的方式保存（）。我应该如何获取文档并进行编辑，然后保存（）而又不触发updateOne（）

调试日志

Mongoose: 
  cards.updateOne(
    { _id: ObjectId("5cfef0ad6037ee55f17d4ee5"), __v: 0 },
    { '$set': {
      antisynergies: [ ObjectId("5cfeea1840b4cc558e14a221") ], 
      synergies: [ 
        ObjectId("5cfeea0e40b4cc558e149e90"),
        ObjectId("5cfeea1040b4cc558e149ed6"),
        ObjectId("5cfeea1040b4cc558e149ee1"), 
        ObjectId("5cfeea1440b4cc558e14a07f"), 
        ObjectId("5cfeea1540b4cc558e14a0bc"), 
        ObjectId("5cfeea1540b4cc558e14a0cf"), 
        ObjectId("5cfef0ad6037ee55f17d4ee5") ],
      updatedAt: new Date("Tue, 11 Jun 2019 00:07:10 GMT") },
      '$inc': { __v: 1 } }, { session: null })

错误

{ VersionError: No matching document found for id "5cfef0ad6037ee55f17d4ee5" version 0 modifiedPaths "synergies, antisynergies"
    at VersionError.MongooseError [as constructor] (/Applications/XAMPP/xamppfiles/htdocs/mlgserver/node_modules/mongoose/lib/error/mongooseError.js:14:11)
    at new VersionError (/Applications/XAMPP/xamppfiles/htdocs/mlgserver/node_modules/mongoose/lib/error/version.js:18:17)
    at generateVersionError (/Applications/XAMPP/xamppfiles/htdocs/mlgserver/node_modules/mongoose/lib/model.js:401:10)
    at model.Model.save (/Applications/XAMPP/xamppfiles/htdocs/mlgserver/node_modules/mongoose/lib/model.js:459:28)
    at Object.<anonymous> (/Applications/XAMPP/xamppfiles/htdocs/mlgserver/dist/mongoose/spirespy/cards.js:416:39)
    at Generator.next (<anonymous>)
    at fulfilled (/Applications/XAMPP/xamppfiles/htdocs/mlgserver/dist/mongoose/spirespy/cards.js:4:58)
    at <anonymous>
    at process._tickCallback (internal/process/next_tick.js:189:7)
  message: 'No matching document found for id "5cfef0ad6037ee55f17d4ee5" version 0 modifiedPaths "synergies, antisynergies"',
  name: 'VersionError',
  version: 0,
  modifiedPaths: [ 'synergies', 'antisynergies' ] }```

创建一个文档，然后在客户端中使用doc更新文档。不确定最佳做法

0 个答案: