CODEWITHSUNDEEP
mongodbelixir
Denis Kuznetsov
Denis Kuznetsov

Reputation: 339

Elixir: mongodb update document

I'm using Elixir MongoDB driver. I need to update an existing document. What I'm trying to do:

Mongo.find_one_and_update(:mongo, "users", %{user_id: 1}, %{money: 100}, pool: DBConnection.Poolboy)

But it throws an error:

** (ArgumentError) update only allows atomic modifiers, got: money (mongodb) lib/mongo.ex:788: Mongo.modifier_key/2 (mongodb) lib/mongo.ex:173: Mongo.find_one_and_update/5

What is the proper way to update document? Thank you.

Upvotes: 0

Views: 529

Answers (1)

Dogbert
Dogbert

Reputation: 222108

To set fields in an update in MongoDB, you need to put the fields to update in a map with key :"$set":

Mongo.find_one_and_update(:mongo, "users", %{user_id: 1}, %{"$set": %{money: 100}}, ...)

Upvotes: 3

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