mongodb: update embedded array of objects with new array of objects [duplicate]

Question

Schema example:

_id: ObjectId
list: [{field: String}]

If I want to add an array of objects into list - how can I do that?
E.g. I have document like here:

{
  _id: 1
  list: [
    {field: "value1"}, {field: "value2"}
  ]
}

And I want to add into the list this array:

[{field: "val3"}, {field: "val4"}, {field: "val5"}]

Is there a way to do it?

vladzam · Accepted Answer · 2015-03-11 07:36:29Z

2

You can use the $push operator together with $each to add all the items to an array in MongoDB:

db.collection.update({_id: 1}, { $push: { list: { $each: [{field: "val3"}, {field: "val4"}, {field: "val5"}]}}});

answered Mar 11, 2015 at 7:36

vladzam

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Comments

codeMan · Accepted Answer · 2015-03-11 07:34:54Z

0

To add objects into the array, you can use push function

var newFields  = [{field: "val3"}, {field: "val4"}, {field: "val5"}];
list.push(newFields);

answered Mar 11, 2015 at 7:28

codeMan

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