TypeError：Organizations.find不是函式

TypeError：Organizations.find 不是 C:\Users\dillo\Desktop\UWI\ECNG 3020 Final Year Project\Damage_Assessment _Tool\routers\OrganizationsRouters.js:11:23 中的函式

我似乎無法理解有什么問題。為簡單起見，我將路由分成不同的檔案，但我一直遇到此錯誤“TypeError：Organizations.find is not a function”

路由檔案包含需要的路由：OrganizationsRouter.js

const express = require('express')
const router = new express.Router();
const { mongoose } = require ('../db/mongoose');

const Organizations = require('../db/models/Organizations.model')

//Routes for Organizations
router.get('/Organizations', (req,res) => {
    //return an array of all the damage assessments made that is stored on the database.
    Organizations.find({}).then((organization) => {
        res.send(organization);
    }).catch((e) => {
        res.send(e);
    });
})
router.post('/Organizations', (req,res) => {
    //create a damage assessment report and save to the database
    let organizationName = req.body.organizationName;
    let newOrganization = new Organizations({
        organizationName
    });
    newOrganization.save().then((OrganizationDoc) => {
        //the full Organization document is returned (including id)
        res.send(OrganizationDoc);
    })
});
router.patch('/Organizations/:id', (req,res) => {
    //update the Organization specified
    Organizations.findOneAndUpdate({_id: req.params.id},{
        $set: req.body
    }).then(() => {
        res.send({'message' : "Updated Successfully"});
    });
});
router.delete('/Organizations/:id', (req,res) => {
    //delete the Organization specified
    Organizations.findOneAndRemove({
        _id: req.params.id
    }).then((removeOrganizationDoc) => {
        res.send(removeOrganizationDoc);
    })
});

module.exports = router

App.js 是主索引檔案：App.js

const express = require('express');
const app = express();
const { mongoose } = require ('./db/mongoose');
const bodyParser = require ('body-parser');

const res = require('express/lib/response');

/*Load Middleware*/
app.use(bodyParser.json());

//Import Routers
const organizationRouter = require('./routers/OrganizationsRouters')

//Register Router
app.use(organizationRouter)


//Listening to the server on port 3000
app.listen(3000,()=>{
    console.log("Listening to port 3000");
})

Organizations.model.js 是貓鼬模式：Organizations.model.js

const mongoose = require('mongoose');

const OrganizationsSchema = new mongoose.Schema({
    organizationName:{
        type: String,
        required: true,
        minlength:1,
        trim: true
    }
})

    
const Organizations = mongoose.model( 'Organizations', OrganizationsSchema);

module.exports =  {Organizations}

uj5u.com熱心網友回復：

我猜這兩行有問題

const { mongoose } = require ('../db/mongoose');
const Organizations = require('../db/models/Organizations.model')

在某些時候應該有 mongoose.createConnection 呼叫以及 connection.model('Organisations', '../db/models/Organizations.model') 然后

router.get('/Organizations', (req,res) => {
    Organizations.find(
        {"name": "blah"},
        (err, docs) => {
            if(err) {
                res.send(err)
            } else {
                res.send(docs)
            }
        }
    )
})

uj5u.com熱心網友回復：

將以書面形式運行我的除錯..

TypeError: Organizations.find is not a function

那么什么是組織...

const Organizations = require('../db/models/Organizations.model')

它標記為模型...您需要創建它的實體嗎？或者使用 ORM 工具進行查找而不是在模型上呼叫 find？什么是組織。

const Organizations = mongoose.model( 'Organizations', OrganizationsSchema);

...好的，所以我們有貓鼬...我以前沒有使用過它，假設它是一個 orm 或某個包而不是函式...它是...所以我們需要/有一個連接嗎？我認為不是——所以也許我們需要建立一個聯系？

https://mongoosejs.com/docs/connections.html

所以你的詳細資訊是這樣的。

mongoose.connect('mongodb://localhost:27017/myapp');

uj5u.com熱心網友回復：

嘗試將模型的匯入更改OrganizationsRouter.js為：

const { Organizations } = require('../db/models/Organizations.model')

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