Mongoose cast error

• Error()
• Error.CastError
• Error.DivergentArrayError
• Error.DocumentNotFoundError
• Error.MissingSchemaError
• Error.MongooseServerSelectionError
• Error.OverwriteModelError
• Error.ParallelSaveError
• Error.StrictModeError
• Error.ValidationError
• Error.ValidatorError
• Error.VersionError
• Error.messages
• Error.prototype.name

Error()

Parameters:

• msg
  «String» Error message

Type:

• «constructor»

Inherits:

• «Error»

const Model = mongoose.model('Test', new mongoose.Schema({ answer: Number }));
const doc = new Model({ answer: 'not a number' });
const err = doc.validateSync();

err instanceof mongoose.Error.ValidationError; // true

Error.CastError

Type:

• «property»

An instance of this error class will be returned when mongoose failed to
cast a value.

Error.DivergentArrayError

Type:

• «property»

An instance of this error will be returned if you used an array projection
and then modified the array in an unsafe way.

Error.DocumentNotFoundError

Type:

• «property»

An instance of this error class will be returned when save() fails
because the underlying
document was not found. The constructor takes one parameter, the
conditions that mongoose passed to update() when trying to update
the document.

Error.MissingSchemaError

Type:

• «property»

Thrown when you try to access a model that has not been registered yet

Error.MongooseServerSelectionError

Type:

• «property»

Thrown when the MongoDB Node driver can’t connect to a valid server
to send an operation to.

Error.OverwriteModelError

Type:

• «property»

Error.ParallelSaveError

Type:

• «property»

An instance of this error class will be returned when you call save() multiple
times on the same document in parallel. See the FAQ for more
information.

Error.StrictModeError

Type:

• «property»

Thrown when your try to pass values to model contrtuctor that
were not specified in schema or change immutable properties when
strict mode is "throw"

Error.ValidationError

Type:

• «property»

An instance of this error class will be returned when validation failed.
The errors property contains an object whose keys are the paths that failed and whose values are
instances of CastError or ValidationError.

Error.ValidatorError

Type:

• «property»

const schema = Schema({ name: { type: String, required: true } });
const Model = mongoose.model('Test', schema);
const doc = new Model({});

// Top-level error is a ValidationError, **not** a ValidatorError
const err = doc.validateSync();
err instanceof mongoose.Error.ValidationError; // true

// A ValidationError `err` has 0 or more ValidatorErrors keyed by the
// path in the `err.errors` property.
err.errors['name'] instanceof mongoose.Error.ValidatorError;

err.errors['name'].kind; // 'required'
err.errors['name'].path; // 'name'
err.errors['name'].value; // undefined

Error.VersionError

Type:

• «property»

An instance of this error class will be returned when you call save() after
the document in the database was changed in a potentially unsafe way. See
the versionKey option for more information.

Error.messages

Type:

• «property»

See:

• Error.messages

The default built-in validator error messages.

Error.prototype.name

Type:

• «String»

I am new to node.js, so I have a feeling that this will be something silly that I have overlooked, but I haven’t been able to find an answer that fixes my problem. What I’m trying to do is create a path that will create a new child object, add it to the parent’s array of children, then return the child object to the requester. The problem that I am running into is that if I pass the string id into findById, node crashes with

TypeError: Object {} has no method ‘cast’

If I try to pass in an ObjectId instead, I get

CastError: Cast to ObjectId failed for value «[object Object]» at path «_id»

Here is a rough outline of my code:

var mongoose = require('mongoose');
var Schema = mongoose.Schema;
var ObjectId = Schema.ObjectId; //Have also tried Schema.Types.ObjectId, mongoose.ObjectId

mongoose.connect('mongodb://user:password@server:port/database');

app.get('/myClass/:Id/childClass/create', function(request, result) {
  var id = new ObjectId(request.params.Id);
  MyClass.findById(id).exec( function(err, myClass) {
    if (err || !myClass) { result.send("error: " + err + "<br>" + JSON.stringify(id) || ("object '" + request.params.Id + "' not found: " + id)); return; }
    var child = ChildClass();
    myClass.Children.addToSet(child);
    myClass.save();
    result.send(child);
  });
});

If I execute this code with the path «/myClass/51c35e5ced18cb901d000001/childClass/create», this is the output of the code:

error: CastError: Cast to ObjectId failed for value «[object Object]» at path «_id»
{«path»:»51c35e5ced18cb901d000001″,»instance»:»ObjectID»,»validators»:[],»setters»:[],»getters»:[],»_index»:null}

I’ve tried using findOne and passing in {_id:id} instead, but this appears to be exactly what findById does. I’ve tried the different classes for ObjectId that I’ve seen listed on other sites. I’ve tried calling ObjectId() like a function instead of a constructor and that returns undefined. At this point, I’m running out of ideas and it doesn’t seem that googling for an answer is helping. Any ideas on what I’m doing wrong?

Also, like I said, I’m new to node/Mongo/Mongoose/Express, so if there is a better way to accomplish my goal, please let me know. I appreciate all feedback.

EDIT:

After the workaround from Peter Lyons, I googled another error that I was running into and found findByIdAndUpdate, which works as expected and does exactly what I was hoping to do. I’m still not sure why findById and findOne were giving me such issues and I’m curious to know (maybe a bug report needs to be filed), so I’ll leave this open in case someone else has an answer.

Mongoose: Cast to ObjectId failed for value

I’m trying to specify the schema of my db in mongoose. At the moment I do this:

I create the schemas and try to save some data.

The db I try to create looks like this: Specify schema in mongoose .

How can I fix this?

2 Answers 2

The example from the mongoose docs you referenced uses Number for the personSchema._id field, and ObjectId for the others.

I presume they do this in the example only to demonstrate that it’s possible to use either. If you do not specify _id in the schema, ObjectId will be the default.

Here, all your records have an _id field which is an ObjectId , yet you’re treating them like numbers. Furthermore, fields like personID and taskID do not exist, unless you’ve left out the part where you define them.

If you did want to use numbers for all your _id fields, you’d have to define that in the schemas.

Then to create a news item with a particular ID, and assign it to a creator:

However the thing to note here is that when you use something other than ObjectId as the _id field, you’re taking on the responsibility of managing these values yourself. ObjectIds are autogenerated and require no extra management.

Edit: I also noticed that you’re storing refs on both sides of your associations. This is totally valid and you may want to do it sometimes, but note that you’d have to take care of storing the references yourself in the pre hook.

Источник

CastError: Cast to ObjectId failed for value

I get mongoose error every time I try to check my if condition (project== null). Please see the code below:

It works fine if I enter the right projected. But I want to handle the case when the specified projectID doesn’t exist. When I enter some random projectID in the URL parameter it is throwing : UnhandledPromiseRejectionWarning: CastError: Cast to ObjectId failed for value «123» at path «_id» for model «Project» .

Any ideas what am I doing wrong?

2 Answers 2

It’s not the issue with the condition project== null , here in this case your query isn’t even getting fired from code to DB.

Issue :

So mongoose .findById() will take in a valid string value & internally convert it to type ObjectId() .

If you pass in a string 5eb78994dbb89024f04a2507 to .findById() then mongoose internally does something like this .findOne(<_id : objectid(‘5eb78994dbb89024f04a2507’)>) .

When I say valid string you need to understand a string value inside an ObjectId() has to be of certain form, Check this : MongoDB-ObjectId.

If you pass in 123 which is not a valid string for ObjectId() mongoose if failing to convert to ObjectId() and throwing that error even prior to forming your query.

So to test your scenario, if your actual string is something like this 5eb78994dbb89024f04a2507 just tweak it with changing last value like 5eb78994dbb89024f04a2508 and give it a try or you can get a sample from above provided link or from another collection’s doc in your DB.

Источник

Mongoose: CastError: Cast to ObjectId failed for value «[object Object]» at path «_id»

I am new to node.js, so I have a feeling that this will be something silly that I have overlooked, but I haven’t been able to find an answer that fixes my problem. What I’m trying to do is create a path that will create a new child object, add it to the parent’s array of children, then return the child object to the requester. The problem that I am running into is that if I pass the string id into findById, node crashes with

TypeError: Object <> has no method ‘cast’

If I try to pass in an ObjectId instead, I get

CastError: Cast to ObjectId failed for value «[object Object]» at path «_id»

Here is a rough outline of my code:

If I execute this code with the path «/myClass/51c35e5ced18cb901d000001/childClass/create», this is the output of the code:

error: CastError: Cast to ObjectId failed for value «[object Object]» at path «_id»

I’ve tried using findOne and passing in <_id:id>instead, but this appears to be exactly what findById does. I’ve tried the different classes for ObjectId that I’ve seen listed on other sites. I’ve tried calling ObjectId() like a function instead of a constructor and that returns undefined. At this point, I’m running out of ideas and it doesn’t seem that googling for an answer is helping. Any ideas on what I’m doing wrong?

Also, like I said, I’m new to node/Mongo/Mongoose/Express, so if there is a better way to accomplish my goal, please let me know. I appreciate all feedback.

EDIT:

After the workaround from Peter Lyons, I googled another error that I was running into and found findByIdAndUpdate, which works as expected and does exactly what I was hoping to do. I’m still not sure why findById and findOne were giving me such issues and I’m curious to know (maybe a bug report needs to be filed), so I’ll leave this open in case someone else has an answer.

17 Answers 17

Short answer: use mongoose.Types.ObjectId.

Mongoose (but not mongo) can accept object Ids as strings and «cast» them properly for you, so just use:

However, the caveat is if req.params.id is not a valid format for a mongo ID string, that will throw an exception which you must catch.

So the main confusing thing to understand is that mongoose.SchemaTypes has stuff you only use when defining mongoose schemas, and mongoose.Types has the stuff you use when creating data objects you want to store in the database or query objects. So mongoose.Types.ObjectId(«51bb793aca2ab77a3200000d») works, will give you an object you can store in the database or use in queries, and will throw an exception if given an invalid ID string.

findOne takes a query object and passes a single model instance to the callback. And findById is literally a wrapper of findOne(<_id: id>) (see source code here). Just find takes a query object and passes an array of matching model instances to the callback.

Just go slow. It’s confusing but I can guarantee you you are getting confused and not hitting bugs in mongoose at this point. It’s a pretty mature library, but it takes some time to get the hang of it.

The other suspect thing I see in your snippet is not using new when instantiating ChildClass . Beyond that, you’ll need to post your schema code in order for us to help you tract down any CastErrors that remain.

Источник

Mongoose: CastError: Cast to ObjectId failed for value “me” at path “_id”

I know there are a lot of version of this question, but I couldn’t find anything helping me.

Here is the error :

I’m adapting some of Yeoman boilerplate auth code and I didn’t touch this part. Any clues would be greatly appreciated.

for completness, here my api for ‘me’

2 Answers 2

You are trying to access a object with findOne by querying _id to be equal to ‘me’. Mongoose is attempt to convert the string ‘me’ to an ObjectId but fails. I can’t tell from the traceback if it’s your me function which is the issue (that’s the only place where findOne is used in the code you have provided), but you could try to change the function call to User.findById(userId, . ) instead. Don’t see why userId is equal to ‘me’ however or if that would help any at all. Hope this gave you some direction at least. Add a comment if you still have problems.

it is old question but since i got the same issue and resolved the issue, I want to post for a future reference.

you get this error because you put

you should always put specific routes before the generic ones.

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Источник

CastError: Cast to ObjectId failed for value «type: ‘Buffer’»

Tried to create a new user on my web application without realizing there was already a user in my database with the same username. For some reason, this boundary case broke my app and now everytime I try to go to the home page, I get:

(node:14649) UnhandledPromiseRejectionWarning: Unhandled promise rejection (rejection id: 1): CastError: Cast to ObjectId failed for value «< type: ‘Buffer’, data: [ 89, 243, 30, 231, 66, 69, 45, 56, 123, 65, 153, 72 ] >» at path «_id» for model «users» (node:14649) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code.

What makes this question unique from the other questions here on stackoverflow is the fact that the type is ‘Buffer’. None of the other questions had that specific issue. I have no idea how a buffer was created when I am not using them at all in my database or node server.

Here is the duplicate error message that occurred just before the buffer error:

< MongoError: E11000 duplicate key error collection: crud2.users index: username_1 dup key: < : «lightbeam» >at Function.MongoError.create (/Users/*/Desktop/coding/apps/thequoteapp/node_modules/mongodb-core/lib/error.js:31:11) at toError (/Users/*/Desktop/coding/apps/thequoteapp/node_modules/mongodb/lib/utils.js:139:22) at /Users/*/Desktop/coding/apps/thequoteapp/node_modules/mongodb/lib/collection.js:668:23 at handleCallback (/Users/*/Desktop/coding/apps/thequoteapp/node_modules/mongodb/lib/utils.js:120:56) at /Users/*/Desktop/coding/apps/thequoteapp/node_modules/mongodb/lib/bulk/unordered.js:465:9 at handleCallback (/Users/*/Desktop/coding/apps/thequoteapp/node_modules/mongodb/lib/utils.js:120:56) at resultHandler (/Users/*/Desktop/coding/apps/thequoteapp/node_modules/mongodb/lib/bulk/unordered.js:413:5) at /Users/*/Desktop/coding/apps/thequoteapp/node_modules/mongodb-core/lib/connection/pool.js:469:18 at _combinedTickCallback (internal/process/next_tick.js:131:7) at process._tickCallback (internal/process/next_tick.js:180:9) name: ‘MongoError’, message: ‘E11000 duplicate key error collection: crud2.users index: username_1 dup key: < : «lightbeam» >‘, driver: true, code: 11000, index: 0, errmsg: ‘E11000 duplicate key error collection: crud2.users index: username_1 dup key: < : «lightbeam» >‘, getOperation: [Function], toJSON: [Function], toString: [Function] >

Here is my user schema:

And here is the get request defined in my route.js file:

And finally the post request to create a new user:

I have tried restarting the nodemon and the mongodb server, and I have tried using:

to clear any and all instances of the mongodb server. Please help!

Источник

  Controller.prototype.show = function(id, res) {
    this.model.findById(id, function(err, doc) {
      if (err) {
        throw err;
      }
      if (!doc) {
        res.send(404);
      }
      return res.send(doc);
    });
  };

27 Answers

if (id.match(/^[0-9a-fA-F]{24}$/)) {
  // Yes, it's a valid ObjectId, proceed with `findById` call.
}

var mongoose = require('mongoose');
mongoose.Types.ObjectId.isValid('your id here');

// require express and express router

const express = require("express");
const router = express.Router();

// move this `/post/like` route on top

router.put("/post/like", requireSignin, like);

// keep the route with route parameter `/:postId` below regular routes

router.get("/post/:postId", singlePost);

ObjectId.fromString( myObjectIdString );

 if(mongoose.Types.ObjectId.isValid(userId.id)) {
        User.findById(userId.id,function (err, doc) {
            if(err) {
                reject(err);
            } else if(doc) {
                resolve({success:true,data:doc});
            } else {
                reject({success:false,data:"no data exist for this id"})

            }
        });
        } else {
            reject({success:"false",data:"Please provide correct id"});
        }

import mongoose from "mongoose";

// add this inside your route
if( !mongoose.Types.ObjectId.isValid(id) ) return false;

router.route("/order/me") //should come before the route which has been passed with params
router.route("/order/:id")

if (!ObjectId.isValid(userId)) return Error({ status: 422 })

app.get("/:userId", (req, res, next) => {
    try {
        // query and other code here
    } catch (err) {
        if (err.kind === "ObjectId") {
            return res.status(404).json({
                errors: [
                    {
                        msg: "User not found",
                        status: "404",
                    },
                ],
            });
        }
        next(err);
    }
});

// Assuming you are using Express, this can return 404 automatically.
app.post('/resource/:id([0-9a-f]{24})', function(req, res){
  const id = req.params.id;
  // ...
});

import { SchemaType }  from 'mongoose';

let patched = false;

export const queryObjectIdCastErrorHandler = {
  install,
};

/**
 * Monkey patches `mongoose.SchemaType.prototype.castForQueryWrapper` to catch
 * ObjectId cast errors and return string instead so that the query can continue
 * the execution. Since failed casts will now use a string instead of ObjectId
 * your queries will not find what they are looking for and may actually find
 * something else if you happen to have a document with this id using string
 * representation. I think this is more or less how MySQL would behave if you
 * queried a document by id and sent a string instead of a number for example.
 */
function install() {
  if (patched) {
    return;
  }

  patch();

  patched = true;
}

function patch() {
  // @ts-ignore using private api.
  const original = SchemaType.prototype.castForQueryWrapper;

  // @ts-ignore using private api.
  SchemaType.prototype.castForQueryWrapper = function () {
    try {
      return original.apply(this, arguments);
    } catch (e) {
      if ((e.message as string).startsWith('Cast to ObjectId failed')) {
        return arguments[0].val;
      }

      throw e;
    }
  };
}

Controller.prototype.show = function(id, res) {
  try {
    var _id = mongoose.Types.ObjectId.fromString(id);



    // the original code stays the same, with _id instead of id:

    this.model.findById(_id, function(err, doc) {
      if (err) {
        throw err;
      }
      if (!doc) {
        res.send(404);
      }
      return res.send(doc);
    });



  } catch (err) {
    res.json(404, err);
  }
};

validator = require('express-validator/check');

app.get('/show/:id', [

    validator.param('id').isMongoId().trim()

], function(req, res) {

    // validation result
    var errors = validator.validationResult(req);

    // check if there are errors
    if ( !errors.isEmpty() ) {
        return res.send('404');
    }

    // else 
    model.findById(req.params.id, function(err, doc) { 
        return res.send(doc);
    });

});

var expressValidator = require('express-validator');
app.use(expressValidator(middlewareOptions));

app.get('/show/:id', function(req, res, next) {

    req.checkParams('id').isMongoId();

    // validation result
    req.getValidationResult().then(function(result) {

        // check if there are errors
        if ( !result.isEmpty() ) {
            return res.send('404');
        }

        // else
        model.findById(req.params.id, function(err, doc) {
            return res.send(doc);
        });

    });

});

//Use following to check if the id is a valid ObjectId?

var valid = mongoose.Types.ObjectId.isValid(req.params.id);
if(valid)
{
  //process your code here
} else {
  //the id is not a valid ObjectId
}

mongoose.Types.ObjectId.isValid(sample_object_id)

import mongoose from "mongoose"; // ES6 or above
const mongoose = require('mongoose'); // ES5 or below

let userid = _id
console.log(mongoose.Types.ObjectId(userid)) //5c516fae4e6a1c1cfce18d77

const mongoose = require("mongoose");
mongoose.set('useFindAndModify', false);  //was set due to DeprecationWarning: Mongoose: `findOneAndUpdate()` and `findOneAndDelete()` without the `useFindAndModify`



app.post("/delete", function(req, res){
  let checkedItem = req.body.deleteItem;
  if (!mongoose.Types.ObjectId.isValid(checkedItem)) {
    checkedItem = checkedItem.replace(/s/g, '');
  }

  Item.findByIdAndRemove(checkedItem, function(err) {
    if (!err) {
      console.log("Successfully Deleted " + checkedItem);
        res.redirect("/");
      }
    });
});

    const gamesArray = [myId];

    const player = await Player.findByIdAndUpdate(req.player._id, {
         gamesId: [gamesArray]
    }, { new: true }

    const gamesArray = [myId];

    const player = await Player.findByIdAndUpdate(req.player._id, {
         gamesId: gamesArray
    }, { new: true }

const paramId = req.params.id;
if(paramId.length === 25){
  const _id = paramId.substring(1, 25);
}

const _id = mongoose.Types.ObjectId.fromString(id); // old method not available
const _id = mongoose.Types.ObjectId.createFromHexString(id); // new method.

Чтобы сделать приложение с помощью мангуста и ejs

Я попытался деградировать другую версию мангуста, чтобы уловить проблему. Тоже пытался утешить.регистрируйте проблемы, из которых я узнал, что коллекция списков собирает данные с помощью метода .save (), в то время как коллекция элементов не может быть сохранена. Это происходит после того, как найденный список приложения.post(‘/’ ) выдает значение null, что приводит к ошибке «невозможно нажать значение null». MongooseError [CastError]: Cast to ObjectId failed for value "{ name: 'C' }" at path "_id" for model "List" Эта ошибка возникает после нажатия на флажок . Который должен был удалить элементы внутри коллекции элементов пользовательского URL-адреса. Во время кодирования он работал некоторое время, затем перестал работать из-за некоторых перерывов в коде.

Файл Package.json:

 {
  "name": "todolist-v1",
  "version": "1.0.0",
  "description": "To do list app by EJS, backend API, MongoDB database",
  "main": "app.js",
  "scripts": {
    "test": "echo "Error: no test specified" amp;amp; exit 1",
    "start": "node app.js"
  },
  "author": "Clinto Abraham Ayamkudiyil",
  "license": "ISC",
  "dependencies": {
    "body-parser": "^1.18.3",
    "ejs": "^2.6.1",
    "express": "^4.17.1",
    "lodash": "^4.17.21",
    "mongoose": "^5.12.1"
  }
}

 

Обновлена версия npm для мангуста, ошибки в hyper :

 CastError: Cast to ObjectId failed for value "{ name: 'Delete' }" at path "_id" for model "List"
    at model.Query.exec (E:Full-Stack-DeveloperEJSputting all togethertoDoListnode_modulesmongooselibquery.js:4361:21)
    at model.Query.Query.findOneAndRemove (E:Full-Stack-DeveloperEJSputting all togethertoDoListnode_modulesmongooselibquery.js:3108:8)
    at Function.Model.findOneAndRemove (E:Full-Stack-DeveloperEJSputting all togethertoDoListnode_modulesmongooselibmodel.js:2909:13)
    at Function.Model.findByIdAndRemove (E:Full-Stack-DeveloperEJSputting all togethertoDoListnode_modulesmongooselibmodel.js:2961:15)
    at E:Full-Stack-DeveloperEJSputting all togethertoDoListapp.js:132:10
    at Layer.handle [as handle_request] (E:Full-Stack-DeveloperEJSputting all togethertoDoListnode_modulesexpresslibrouterlayer.js:95:5)
    at next (E:Full-Stack-DeveloperEJSputting all togethertoDoListnode_modulesexpresslibrouterroute.js:137:13)
    at Route.dispatch (E:Full-Stack-DeveloperEJSputting all togethertoDoListnode_modulesexpresslibrouterroute.js:112:3)
    at Layer.handle [as handle_request] (E:Full-Stack-DeveloperEJSputting all togethertoDoListnode_modulesexpresslibrouterlayer.js:95:5)
    at E:Full-Stack-DeveloperEJSputting all togethertoDoListnode_modulesexpresslibrouterindex.js:281:22
    at Function.process_params (E:Full-Stack-DeveloperEJSputting all togethertoDoListnode_modulesexpresslibrouterindex.js:335:12)
    at next (E:Full-Stack-DeveloperEJSputting all togethertoDoListnode_modulesexpresslibrouterindex.js:275:10)
    at serveStatic (E:Full-Stack-DeveloperEJSputting all togethertoDoListnode_modulesserve-staticindex.js:75:16)
    at Layer.handle [as handle_request] (E:Full-Stack-DeveloperEJSputting all togethertoDoListnode_modulesexpresslibrouterlayer.js:95:5)
    at trim_prefix (E:Full-Stack-DeveloperEJSputting all togethertoDoListnode_modulesexpresslibrouterindex.js:317:13)
    at E:Full-Stack-DeveloperEJSputting all togethertoDoListnode_modulesexpresslibrouterindex.js:284:7 {
  messageFormat: undefined,
  stringValue: `"{ name: 'Delete' }"`,
  kind: 'ObjectId',
  value: { name: 'Delete' },
  path: '_id',
  reason: Error: Argument passed in must be a single String of 12 bytes or a string of 24 hex characters
      at new ObjectID (E:Full-Stack-DeveloperEJSputting all togethertoDoListnode_modulesbsonlibbsonobjectid.js:59:11)
      at castObjectId (E:Full-Stack-DeveloperEJSputting all togethertoDoListnode_modulesmongooselibcastobjectid.js:25:12)
      at ObjectId.cast (E:Full-Stack-DeveloperEJSputting all togethertoDoListnode_modulesmongooselibschemaobjectid.js:279:12)
      at ObjectId.SchemaType.applySetters (E:Full-Stack-DeveloperEJSputting all togethertoDoListnode_modulesmongooselibschematype.js:1104:12)
      at ObjectId.SchemaType._castForQuery (E:Full-Stack-DeveloperEJSputting all togethertoDoListnode_modulesmongooselibschematype.js:1539:15)
      at ObjectId.SchemaType.castForQuery (E:Full-Stack-DeveloperEJSputting all togethertoDoListnode_modulesmongooselibschematype.js:1529:15)
      at ObjectId.SchemaType.castForQueryWrapper (E:Full-Stack-DeveloperEJSputting all togethertoDoListnode_modulesmongooselibschematype.js:1506:20)
      at cast (E:Full-Stack-DeveloperEJSputting all togethertoDoListnode_modulesmongooselibcast.js:274:34)
      at model.Query.Query.cast (E:Full-Stack-DeveloperEJSputting all togethertoDoListnode_modulesmongooselibquery.js:4801:12)
      at castQuery (E:Full-Stack-DeveloperEJSputting all togethertoDoListnode_modulesmongooselibquery.js:4601:18)
      at model.Query.Query._findAndModify (E:Full-Stack-DeveloperEJSputting all togethertoDoListnode_modulesmongooselibquery.js:3461:23)
      at model.Query.<anonymous> (E:Full-Stack-DeveloperEJSputting all togethertoDoListnode_modulesmongooselibquery.js:3424:8)
      at model.Query._wrappedThunk [as _findOneAndRemove] (E:Full-Stack-DeveloperEJSputting all togethertoDoListnode_modulesmongooselibhelpersquerywrapThunk.js:16:8)
      at E:Full-Stack-DeveloperEJSputting all togethertoDoListnode_moduleskareemindex.js:370:33
      at processTicksAndRejections (internal/process/task_queues.js:75:11)
}
 { _id: 6058941ad1f874331c5bd61b, name: '' }  Delete  null

events.js:292
      throw er; // Unhandled 'error' event
      ^

TypeError: Cannot read property 'push' of null
    at E:Full-Stack-DeveloperEJSputting all togethertoDoListapp.js:99:19
    at E:Full-Stack-DeveloperEJSputting all togethertoDoListnode_modulesmongooselibmodel.js:4870:16
    at E:Full-Stack-DeveloperEJSputting all togethertoDoListnode_modulesmongooselibmodel.js:4870:16
    at E:Full-Stack-DeveloperEJSputting all togethertoDoListnode_modulesmongooselibhelperspromiseOrCallback.js:24:16
    at E:Full-Stack-DeveloperEJSputting all togethertoDoListnode_modulesmongooselibmodel.js:4893:21
    at E:Full-Stack-DeveloperEJSputting all togethertoDoListnode_modulesmongooselibquery.js:4400:11
    at E:Full-Stack-DeveloperEJSputting all togethertoDoListnode_moduleskareemindex.js:136:16
    at processTicksAndRejections (internal/process/task_queues.js:75:11)
Emitted 'error' event on Function instance at:
    at E:Full-Stack-DeveloperEJSputting all togethertoDoListnode_modulesmongooselibmodel.js:4872:13
    at E:Full-Stack-DeveloperEJSputting all togethertoDoListnode_modulesmongooselibhelperspromiseOrCallback.js:24:16
    [... lines matching original stack trace ...]
    at processTicksAndRejections (internal/process/task_queues.js:75:11)
 

EJS FILE

  <%- include("header") -%>

  <div class="box" id="heading">
    <h1> <%= listTitle %> </h1>
  </div>

  <div class="box">
    <% newListItems.forEach(function(item){ %>
      <form action="/delete" method="post">
        <div class="item">
          <input 
            type="checkbox" 
            onchange="this.form.submit()" 
            value="<%= item._id %>" 
            name="checkbox"
          >
          <p><%=  item.name  %></p>
        </div>
        <input 
          type='hidden' 
          name="listName"
          value="<%= listTitle %>" 
        >
      </form>
    <% }); %>


      <form 
        class="item" 
        action="/" 
        method="post"
      >
        <input 
          type="text" 
          name="newItem" 
          placeholder="New Item" 
          autocomplete="off"
        >
        <button 
          type="submit" 
          name="list" 
          value=" <%= listTitle %> "
        > </button>
      </form>
  </div>

<%- include("footer") -%>
 

app.js with app.post(‘delete’) has errors initiated

 c//jshint esversion:6

const express = require("express");
const bodyParser = require("body-parser");
const mongoose = require("mongoose");
const _ = require('lodash');

const { Schema } = mongoose;

const date = require(__dirname   "/date.js");
var today = date.getDate();

const app = express();

app.set('view engine', 'ejs');

app.use(bodyParser.urlencoded({extended: true}));
app.use(express.static("public"));

mongoose.connect("mongodb://localhost:27017/todolistDB", {
  useNewUrlParser: true, 
  useUnifiedTopology: true,
  useFindAndModify: true,
  useCreateIndex : true
});  //useNewUrlParser: true is used for avoiding the deprecation warning

const itemsSchema = new Schema({
  name: String 
});

const Item = mongoose.model("Item", itemsSchema);  // Collections name is Items, so we use singular form in model as 'Item'

const item1 = new Item({ name: "Hey, today's do list."});
const item2 = new Item({ name: "Hit the   button to add a new item"});
const item3 = new Item({ name: "<= Hit this checkbox to delete an item."});
const defaultItems = [item1, item2, item3];

// const items = ["Buy Food", "Cook Food", "Eat Food"];
// const workItems = [];

const listSchema = new Schema({
  name: String,
  items: [itemsSchema]
});

const List = mongoose.model('List', listSchema);


app.get("/", function(req, res) {
  Item.find({}, function(err, foundItems){
    console.log(foundItems);
    if (foundItems.length === 0){
      Item.insertMany(defaultItems, function(err){
        if (err){
          console.log(err);
        } else {
          console.log("Successfully saved the default items to DB.");  
        } 
        res.redirect("/");
      });
    } else{
      console.log(today);
      res.render("list", 
        {
          listTitle: today, 
          newListItems: foundItems
        }
      );
    }
  });
});

app.post("/", function(req, res){
  const itemName = req.body.newItem;
  const item = new Item( { name: itemName } );
  const listName = req.body.list;
  // console.log(itemName, item, listName);

  if (listName === today){
    item.save(function (err) {
      if (err) {
        console.log(err);
        return handleError(err);
      } else {
        console.log('successfully saved inside "/" route content under todays date');
      }
    });
    res.redirect("/");
    console.log( itemName, item, listName); 
    //test add { _id: 6058562ddb96b030fcddc85e, name: 'test add' }  Clintoayamkudi  
  } else {
     List.findOne({name : listName }, function(err, foundList){

      if (err){
        console.log(err, itemName, item, listName);
      } else { 
        console.log( itemName, item, listName, foundList);
        //test add { _id: 6058562ddb96b030fcddc85e, name: 'test add' }  Clintoayamkudi  null
        foundList.push(item);
        // foundList.markModified('items');           // basically it helps in saving the modified files , since items is not readable -not helpful.
        foundList.save();
        res.redirect('/'   listName);
      }
    });

  }
  // if (req.body.list === "Work") {
  //   workItems.push(item);
  //   res.redirect("/work");
  // } else {
  //   items.push(item);
  //   res.redirect("/");
  // }

});

app.post("/delete", function(req, res){
  const checkedItemId = req.body.checkbox;
  const listName = req.body.listName;
  console.log(checkedItemId, req.body, listName);
  //605315035dbba527c004e58e { checkbox: '605315035dbba527c004e58e', listName: 'Monday, March 22' } Monday, March 22
  if(listName === today){
    Item.findByIdAndRemove(checkedItemId, function(err){
      if(!err){
        console.log("successfully removed the checked item from the item list!!!");
        res.redirect("/");
      } 
    });
  } else {
    console.log(checkedItemId, listName);
    //605878c7707cee19145c7779 Clinto92
    List.findByIdAndRemove(
      {
        name: listName
      }, 
      {
        $pull : {
                  _id : checkedItemId
                }
      }, 
    function(err){
      if(!err){
        res.redirect('/'   listName);
      } else {
        console.log(err);
      }
    });
  }
  
});


app.get("/:customListName", function(req,res){
  const customListName = _.capitalize(req.params.customListName);

  List.findOne({name : customListName}, function(err, foundList){
    if(!err){
      if (!foundList){
        console.log("data doesn't exist");
        // create new list
        const list = new List({
          name: customListName,
          items: defaultItems
        }); 
        list.save();
        res.redirect('/'   customListName);
      } else {
        console.log('the searched data exist in the mongoDB');
        // show the existing list
        res.render('list', {
          listTitle: foundList.name, 
          newListItems: foundList.items
        });
      }
    } else {
      console.log(err);
    }
  });  
});


app.get("/:customListName/about", function(req, res){
  res.render("about");
});

app.listen(3000, function() {
  console.log("Server started on port 3000");
});
 

Ошибки в гипертерминале

Я ухудшил версию мангуста, чтобы npm install mongoose@4.7.2 лучше понять, со всеми параметрами, показанными в журнале ниже:

 MongooseError [CastError]: Cast to ObjectId failed for value "{ name: 'C' }" at path "_id" for model "List"
    at new CastError (E:Full-Stack-DeveloperEJSputting all togethertoDoListnode_modulesmongooseliberrorcast.js:26:11)
    at ObjectId.cast (E:Full-Stack-DeveloperEJSputting all togethertoDoListnode_modulesmongooselibschemaobjectid.js:147:13)
    at ObjectId.castForQuery (E:Full-Stack-DeveloperEJSputting all togethertoDoListnode_modulesmongooselibschemaobjectid.js:187:15)
    at cast (E:Full-Stack-DeveloperEJSputting all togethertoDoListnode_modulesmongooselibcast.js:192:34)
    at model.Query.Query.cast (E:Full-Stack-DeveloperEJSputting all togethertoDoListnode_modulesmongooselibquery.js:2742:12)
    at castQuery (E:Full-Stack-DeveloperEJSputting all togethertoDoListnode_modulesmongooselibquery.js:2648:18)
    at model.Query.Query._findAndModify (E:Full-Stack-DeveloperEJSputting all togethertoDoListnode_modulesmongooselibquery.js:1857:17)
    at model.Query.Query.findOneAndRemove (E:Full-Stack-DeveloperEJSputting all togethertoDoListnode_modulesmquerylibmquery.js:2272:15)
    at model.Query.Query._findOneAndRemove (E:Full-Stack-DeveloperEJSputting all togethertoDoListnode_modulesmongooselibquery.js:1832:31)
    at E:Full-Stack-DeveloperEJSputting all togethertoDoListnode_moduleskareemindex.js:239:8
    at E:Full-Stack-DeveloperEJSputting all togethertoDoListnode_moduleskareemindex.js:18:7
    at processTicksAndRejections (internal/process/task_queues.js:75:11) {
  stringValue: `"{ name: 'C' }"`,
  kind: 'ObjectId',
  value: { name: 'C' },
  path: '_id',
  reason: undefined,
  model: [Function: model] {
    hooks: Kareem { _pres: {}, _posts: {} },
    base: Mongoose {
      connections: [Array],
      plugins: [],
      models: [Object],
      modelSchemas: [Object],
      options: [Object]
    },
    modelName: 'List',
    model: [Function: model],
    db: NativeConnection {
      base: [Mongoose],
      collections: [Object],
      models: [Object],
      config: [Object],
      replica: false,
      hosts: null,
      host: 'localhost',
      port: 27017,
      user: undefined,
      pass: undefined,
      name: 'todolistDB',
      options: [Object],
      otherDbs: [],
      _readyState: 1,
      _closeCalled: false,
      _hasOpened: true,
      _listening: false,
      db: [Db]
    },
    discriminators: undefined,
    schema: Schema {
      obj: [Object],
      paths: [Object],
      subpaths: {},
      virtuals: [Object],
      singleNestedPaths: {},
      nested: {},
      inherits: {},
      callQueue: [Array],
      _indexes: [],
      methods: {},
      statics: {},
      tree: [Object],
      _requiredpaths: [],
      discriminatorMapping: undefined,
      _indexedpaths: undefined,
      query: {},
      childSchemas: [Array],
      s: [Object],
      options: [Object],
      '$globalPluginsApplied': true
    },
    collection: NativeCollection {
      collection: [Collection],
      opts: [Object],
      name: 'lists',
      collectionName: 'lists',
      conn: [NativeConnection],
      queue: [],
      buffer: false,
      emitter: [EventEmitter]
    },
    Query: [Function (anonymous)] { base: [Object] },
    '$__insertMany': [Function (anonymous)],
    insertMany: [Function (anonymous)]
  }
 

Заранее благодарю вас!