Question

我有一个基本脚本来查找没有名称字段的所有客户，并记录它们。返回错误Customer.find is not a function。其余的代码在正常运行应用程序时运行正常，因此它不是模块导出问题。正常运行应用程序时，客户模块可以正常运行。我通过调用node server/scripts/script.js

来执行此脚本

有什么想法吗？完整代码和错误如下。

脚本

'use strict';

process.env.NODE_ENV = process.env.NODE_ENV || 'development';

require('babel-core/register');
const mongoose = require('mongoose');
const config = require('../config/environment');
const Customer = require('../api/customer/customer.model');

mongoose.connect(config.mongo.uri, config.mongo.options);

console.log('Customer');
console.log(Customer);

Customer.find({
  $or: [
    { 'name': false },
    { 'name': '' },
  ],
}, function (err, customers) {
    if (err) return console.error(err);
    console.log(customers.length);
});

错误

Customer
{ default: 
   { [Function: model]
     hooks: Kareem { _pres: {}, _posts: {} },
     base: 
      Mongoose {
        connections: [Object],
        plugins: [],
        models: [Object],
        modelSchemas: [Object],
        options: [Object] },
     modelName: 'Customer',
     model: [Function: model],
     db: 
      NativeConnection {
        base: [Object],
        collections: [Object],
        models: [Object],
        config: [Object],
        replica: false,
        hosts: null,
        host: 'localhost',
        port: 27017,
        user: undefined,
        pass: undefined,
        name: 'toro-dev',
        options: [Object],
        otherDbs: [],
        _readyState: 2,
        _closeCalled: false,
        _hasOpened: false,
        _listening: false,
        db: [Object] },
     discriminators: undefined,
     findScript: [Function: findScript],
     schema: 
      Schema {
        paths: [Object],
        subpaths: {},
        virtuals: [Object],
        singleNestedPaths: {},
        nested: {},
        inherits: {},
        callQueue: [Object],
        _indexes: [],
        methods: [Object],
        statics: [Object],
        tree: [Object],
        _requiredpaths: undefined,
        discriminatorMapping: undefined,
        _indexedpaths: undefined,
        query: {},
        childSchemas: [Object],
        s: [Object],
        options: [Object],
        '$globalPluginsApplied': true },
     collection: 
      NativeCollection {
        collection: null,
        opts: [Object],
        name: 'customers',
        collectionName: 'customers',
        conn: [Object],
        queue: [],
        buffer: true,
        emitter: [Object] },
     Query: { [Function] base: [Object] },
     '$__insertMany': [Function],
     insertMany: [Function] } }

Customer.find({
         ^

TypeError: Customer.find is not a function
    at Object.<anonymous> (/Users/tori/Documents/RocketSled/toro/server/scripts/remove_empty_customers.js:16:10)
    at Module._compile (module.js:409:26)
    at Object.Module._extensions..js (module.js:416:10)
    at Module.load (module.js:343:32)
    at Function.Module._load (module.js:300:12)
    at Function.Module.runMain (module.js:441:10)
    at startup (node.js:139:18)
    at node.js:968:3

修改添加了上面Customer的控制台日志，以便您可以看到它与

实际链接的内容

Answer 1

问题是babel - 在我的程序的其余部分，我实施了babel，以便我的Customer模型可以以某种方式导出。然而，使用一次性脚本，babel没有像往常一样集成或需要，所以我必须按照旧学校的ES5语法导出Customer模型。将我的客户导出更改为：

export default mongoose.model('Customer', CustomerSchema);
module.exports = mongoose.model('Customer', CustomerSchema);

现在效果很好。在我的典型代码中，我只使用第一行。我希望这有助于其他人！

运行脚本来修改数据库 - Mongoose Model.find不是一个函数

1 个答案: