error name is missing

[hasinoorit]

Do you want to request a feature or report a bug?
Bug

What is the current behavior?

Error name is missing for CastError

If the current behavior is a bug, please provide the steps to reproduce.

My Schema code is
const contentSchema = Schema({ text: { type: String, required: [true, "Text is required"] }, number: { type: Number, required: [true, "Number is required"] }, })
My Parameters are
{ "text": false, "number": "fsfsf" }

What is the expected behavior?
err.errors['number'].name should show 'CastError'

What are the versions of Node.js, Mongoose and MongoDB you are using? Note that "latest" is not a version.

1. Node Version: 14.16.0
2. mongooser version: 5.12.4
3. mongodb version: 3.6.8

[IslandRhythms]

const mongoose = require('mongoose');
const {Schema} = mongoose;

const testSchema = new Schema({text: {type:String, required: [true, "Text is required"]}, number: {
    type: Number, required: [true, "Number is required"]}, });

    const Test = new mongoose.model('Test', testSchema);

    async function run() {
        await mongoose.connect('mongodb://localhost:27017/test', {
            useNewUrlParser: true,
            useUnifiedTopology: true
          });
        
        await mongoose.connection.dropDatabase();

        const entry = await Test.create({"text": false, "number": "fsfsf"});
        await entry.save();
    }
    run();

[IslandRhythms]

try new mongoose.Schema instead of Schema

[hasinoorit]

Code to reproduce

const mongoose = require("mongoose")
const {Schema} = mongoose

const testSchema = new Schema({text: {type:String, required: [true, "Text is required"]}, number: {
  type: Number, required: [true, "Number is required"]}, })

const Test = new mongoose.model("Test", testSchema)

async function run() {
  try {
    await mongoose.connect("mongodb://localhost:27017/test", {
      useNewUrlParser: true,
      useUnifiedTopology: true
    })
        
    await mongoose.connection.dropDatabase()

    const entry = await Test.create({"text": false, "number": "fsfsf"})
    await entry.save()
  } catch (error) {
    console.log(JSON.parse(JSON.stringify(error)))
  }
}
run()

Current output

{
  errors: {
    number: {
      stringValue: '"fsfsf"',
      kind: 'Number',
      value: 'fsfsf',
      path: 'number',
      reason: [Object]
    }
  },
  _message: 'Test validation failed',
  name: 'ValidationError',
  message: 'Test validation failed: number: Cast to Number failed for value "fsfsf" at path "number"'
}

[IslandRhythms]

Why are you expecting it to show a cast error vs a validation error? Number is expecting a number but you are passing a string.

[hasinoorit]

Why are you expecting it to show a cast error vs a validation error? Number is expecting a number but you are passing a string.

According to documention https://mongoosejs.com/docs/validation.html#cast-errors
errors['number'] should have "message" & "name" property. But these properties are missing. I need these property for developing a plugin.

[IslandRhythms]

So it's possible the documentation could be outdated, I'll need to go confirm that. However, in your output, there is a name and message property, it is just not in the exact place the documentation says so in the meantime you can use that.

[hasinoorit]

So it's possible the documentation could be outdated, I'll need to go confirm that. However, in your output, there is a name and message property, it is just not in the exact place the documentation says so in the meantime you can use that.

That name & message property are not of field level error. Document is not outdated, indeed its updated. My old plugin is also using these property for setting custom CastError message, and unique error message. I am using my old plugin with mongoose 5.9.25. Its definitely a new bug.