Mongoose: How to update a nested array?

Question

I'm new in MongoDB an I'm using mongoose with nodejs. Currently I'm trying to update a nested Array which looks like this:

array1: [
{
    name: "one"
    array2: [
        {
            value1: "test",
            value2: "test2"
        }
    ]
}
]

So now I want to update the value1 in array2. How can I achieve this? I'm using the atomic operator two times in my code like this but it doens't work:

const data = await DB.findOneAndUpdate(
    {
        "array1.name": "one",
        "array1.array2.value1": "test"
    },
    {
        "$set": {
            "array1.$.array2.$.value1": "test changed"
        },
    }
);

Any ideas how I can do this? Thanks: :)

Answer 1

You can use arrayFilters to update the nested array.

  const data = await DB.findOneAndUpdate(
    {},
    {
      $set: {
        "array1.$[elem1].array2.$[elem2].value1": "test changed",
      },
    },
    {
      arrayFilters: [{ "elem1.name": "one"}, {"elem2.value1": "test"}],
    }
  );