Mongodb simple update does not work in Ruby/Mongoid

Question

I have the following MongoDB update operation, but it doesnt seem to work, anyone know why?

User.collection.update({ _id: BSON::ObjectId("5018ed448712ff240e0000a0") }, 
                       { "$set" => { name: "ben" } })

It does not throw an error, but just some integer which I am guessing is the doc size.

I am using Mongoid 2.4.10/Rails 3.2.7

User.collection.update({"_id"=>BSON::ObjectId('5018ed448712ff240e0000a0')}, { "$set" => {"name" => "ben" } }) — user956584
– user956584, Commented Aug 1, 2012 at 10:34

Daniel · Accepted Answer · 2012-08-03 21:42:11Z

2

If you are using Mongoid, you coule just do a find and update:

User.find("5018ed448712ff240e0000a0").update_attributes!(name: "ben")

or you could use set:

User.find("5018ed448712ff240e0000a0").set(:name, "ben")

Note that set() takes 2 arguments; it does not accept a hash as an argument

Daniel

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answered Aug 3, 2012 at 18:36

Shailen Tuli

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Comments

Iuri G. · Accepted Answer · 2012-08-01 15:59:17Z

0

Can you use mongoid API instead and use following command:

User.find("5018ed448712ff240e0000a0").set(name: "ben")

answered Aug 1, 2012 at 15:59

Iuri G.

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