mongo-c-driver中的bson：更新已存在字段的值

Question

I'm working with the mongo-c-driver and I have a doubt with the BSON library. As you can see here , there are a lot of functions to append data to already existent bson document (We are talking about bson documents in memory, not stored in the database). But I can't find one to update or delete an already existent field. There is a way to modify already existent fields?

Best regards, thanks for your time,

Héctor

Answer 1

You can update or delete a field with the mongoc_collection_update_one() function. The "$set" and "$unset" operators should be good enough for simple fields (or "$push" and "$pull" for arrays), otherwise there is the complete list of operators here .