Is there a way to update MongoDB array key name?

Question

There is this MongoDB Document:

{
  "name": "First Floor",
  "years": {
    "Year 1": {
      "Class A": [
        "Nayara",
        "Steve",
        "Jean"
      ],
      "Class B": [
        "Mark",
        "James",
        "Ana"
      ]
    }
  }
}

Is there a way to update the array key name, the "Year 1" to "Year somethingelse"?

If so, could it also be used with the "Class A" and "Class B" to change it to "Class somethingelse"?

Sergio Tulentsev · Accepted Answer · 2012-07-09 16:19:45Z

2

Yes, you should $rename

db.collection.update(query, 
                     {$rename: {'years.Year 1': 'years.Year somethingelse'}})

You can do the same with "Class A" and "Class B" fields, of course.

answered Jul 9, 2012 at 16:19

Sergio Tulentsev

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