I would like to know if there is any simpler (and faster) possibilities to create/override an item in my mongo databse by looking at a Key.

Let me explain :

MyObject:

   #<MyObject _id: 5881e885049490276d1d85b9,
    data_table: [...],
    my_key: "test">

so this is my object

Today, I need to modify a lot of theses object in a very fast way (very often) updating the data_table

Today I do this :

ct = MyObject.where(my_key: "test").first               
ct.update_attributes(data_table: data)

But I think I lose a lot of performances, right ?

There is a way I can do like a create or update using the key my_key to create or override the item ?

Or any other ideas to improves performances ?

thanks !