如何使用 'type' 在 mongoose 中使用嵌套模式来创建数组？

Posted 2023-03-11

【中文标题】如何使用 \'type\' 在 mongoose 中使用嵌套模式来创建数组？

【英文标题】：How do I use nested schemas in mongoose, using 'type', to create arrays?如何使用 'type' 在 mongoose 中使用嵌套模式来创建数组？

【发布时间】：2019-07-19 08:04:36

【问题描述】：

我正在尝试创建一个嵌套的猫鼬模式，它使用“类型”来创建一个嵌套数组。

我认为我遇到问题的架构是“chorePerson”。

这是我试图放入架构中的数据：

  "chart": [
    
      "ordinal": 0,
      "chorePerson": [
        
          "person": "emily",
          "chore": "Catbox"
        ,
        
          "person": "Steve",
          "chore": "Dishes"
        
      ]
    
  ]

这是我当前的架构。注意“chart”和“chorePerson”使用“type”

const mongoose = require('mongoose');
const Schema = mongoose.Schema;

const chorePersonSchema = new mongoose.Schema(
    person: type: String, requried: true,
    chore: type: String, required: true,
);


const chartSchema = new mongoose.Schema(
    ordinal: type: Number, required: true,
    chorePerson: type: chorePersonSchema ,
);


// create the schema
const ChoreChartSchema = new Schema(

    affiliation: type: String, required: true,
    currentWeekNumber: type: Number, required: true,
    currentYear: type: Number, required: true,

    chart: type: chartSchema ,

    date: type: Date, default: Date.now,
)

module.exports = ChoreChart = mongoose.model('cm_chorechart', ChoreChartSchema)

当我运行我的代码时，这是我在崩溃之前得到的：

 _id: 5c742ed116a095522c38ddfc,
  affiliation: 'family',
   currentYear: 2019,
   currentWeekNumber: 9,
   date: 2019-02-25T20:26:33.914Z,
  chart: [  ordinal: 0, chorePerson: [Array]  ] 

我认为... chorePerson 导致错误...但我不知道如何解决它。 这是一个例外：

(node:6728) UnhandledPromiseRejectionWarning: ObjectExpectedError: Tried to set nested object field `chart` to primitive value `[object Object]` and strict mode is set to throw.

我的尝试

我试过这个架构：

const chartSchema = new mongoose.Schema(
    ordinal: type: Number, required: true,

    chorePerson : [
        person : String,
        chore : String
        ]       
);

更新：

好的...所以我回到了基础，这很有效，但这不是我想要的最终模式。任何人都可以帮忙嵌套这个吗？

// create the schema
const ChoreChartSchema = new Schema(

    affiliation: type: String, required: true,
    currentWeekNumber: type: Number, required: true,
    currentYear: type: Number, required: true,

//    chart: type: chartSchema ,

    chart:[
            ordinal: 0,
            chorePerson : [
                person : String,
                chore : String
            ]
    ],

    date: type: Date, default: Date.now,
)

【参考方案1】：

事实证明这比我想象的要容易：

    const mongoose = require('mongoose');
    const Schema = mongoose.Schema;

    const chorePersonSchema = new mongoose.Schema(
        person: type: String, requried: true,
        personID: type: String, required: true,
        chore: type: String, required: true,
        choreID: type: String, required: true,
    );

    const chartSchema = new mongoose.Schema(
        ordinal: type: Number, required: true,

        chorePerson : [ type:chorePersonSchema ]       
    );


    // create the schema
    const ChoreChartSchema = new Schema(

        affiliation: type: String, required: true,
        weekNumber: type: Number, required: true,
        year: type: Number, required: true,

        chart:[type: chartSchema],

        date: type: Date, default: Date.now,
    )

    module.exports = ChoreChart = mongoose.model('cm_chorechart', ChoreChartSchema)

【讨论】：

你怎么写图表：[type: chartSchema OR type: someOtherSchema]，我的意思是图表可以是chartSchema对象或someOtherScheme对象的数组..是否可以做一个联合类型?谢谢