Mongoose query returning undefined for strings

Question

I have the following data in my MongoDB, modeled via my Person model:

 { _id: 135, name: 'Alfie', age: 26 }
 { _id: 217, name: 'Ronny', age: 34 }
 { _id: 400, name: 'Sandy', age: 45 }
 { _id: 676, name: 'William', age: 24 }
 { _id: 987, name: 'Debra', age: 31 }
 { _id: 356, name: 'Kevin', age: 47 }

Now I run the following query:

const findQuery = Person.find({ _id: { $lt: 300 } }).select({ name: 1 })

findQuery.exec().then(doc => {
  for (let person of doc) {
    console.log(person)
    console.log(person._id)
    console.log(person.name)
  }
}

The output is:

{ _id: 135, name: 'Alfie' }
135
undefined
{ _id: 217, name: 'Ronny' }
217
undefined

My question is, why is the string contained within person.name return undefined? where as the object itself and person._id is returned correctly.

Chris · Accepted Answer · 2017-10-24 13:08:16Z

2

I found the answer, name was missing from mongoose.Schema, so it couldn't find the value, even if it was present in the database.

answered Oct 24, 2017 at 13:08

Chris

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