!e.eoo() error in MongoDB query

Question

Something is wrong with this query, and I can't tell what it is. I am sure it's something very simple:

db.foo.insert({
    'created at': new Date(),
    ooc: false,
    body: '<p>Moo</p>\n',
    keywords: [ 'Moo' ],
    mentioned: [],
    tags: [],
    sender: {
        _id: 'stuff',
        name: 'lambdadusk',
        'display name': 'Lambda'
    }
});

The error I get from Mongo is simply

!e.eoo()

I'm using MongoDB 2.0.5. Googling the error did not tell me much.

Answer 1

I should have tried that earlier.

The problem is not the query, but the BSON datafile of the collection was corrupted somehow. I had to drop the collection, then re-try.

Luckily, the collection was empty as I am early in development.

Answer 2

eoo means end-of-object and if it's not there, you may well have a parse error in your JSON. Possibly Mongo wants strictly valid JSON, so you may need to use double quotes for all strings and maybe remove the new Date() bit.

http://jsonlint.com/ suggested that this would be valid, whereas the code you posted isn't. Not sure if that'll help or not as Mongo uses BSON, so may be more flexible.

{
    "created at": {},
    "ooc": false,
    "body": "<p>Moo</p>\n",
    "keywords": [
        "Moo"
    ],
    "mentioned": [],
    "tags": [],
    "sender": {
        "_id": "stuff",
        "name": "lambdadusk",
        "displayname": "Lambda"
    }
}