darrell-d

darrell-d

How to update a mapset

If I have a MapSet in the form:

#MapSet <[
    %{
        author: 1234,
        comments: [
        %Other.Module {
            body: "I WANT TO UPDATE THIS",
            other_key: 123,
            ...
        }
        ],
        other_key: 234,
        ...
    }
]>

How can I update the body?

Marked As Solved

kokolegorille

kokolegorille

You have a mapset, that contains a map, that contains a list, with a struct You want to transform…

You should tell how You get this data, because it’s probably easier to treat this when it is build.

        %Other.Module {
            body: "I WANT TO UPDATE THIS",
            other_key: 123,
            ...
        }

You should start by knowing how to procede with this simple transformation, then later You could decompose the more complex structure.

Also Liked

NobbZ

NobbZ

Even though the MapSets structure is opaque and has to be treated unknown, we can Access it or use Enum.

So the main question is probably, which of the potentially many bodies in such a set should be changed? If it’s only one, then put_in/get_in are probably of help, if it’s all, Enum.map.

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