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update with upsert: true doesn’t work sometimes

   February 25, 2021  1 Comment on update with upsert: true doesn’t work sometimes

I need to keep only one document in my nedb.

So I make db.update({ active: true }, data, { upsert: true }, function (err, savedNum) { ... }) where data is { active: true, name: 'name', token: '1234567890' }

It saves doc and keep it only one yet on a first time.
But second time while updating (data is almost the same, only token is different), it doesn’t replace existing document – it adds another one..

On the third time it stops to add new ones, but replace one of existing ones..

Full dicussion on github.com

1 possible answer(s) on “update with upsert: true doesn’t work sometimes”

  1. @voronianski this is not a bug. The datafile is append only but gets autocompacted upon every reload. If you look closely, you’ll see that the documents in your file habe the same _id, meaning they re in fact the different states of the same doc, the last one being the latest one

    When checking the contents of a db, never look at the file, always do a db.find()