I don't get it....
Are you aware that 

db.persons.update(howmany=db.persons.howmany + 1)

is working?
It seems that that is what you want.

Il giorno venerdì 9 marzo 2012 12:04:59 UTC+1, Alan Etkin ha scritto:
>
> Is it currently possible something similar to the command in the 
> subject? If not, would it be a good enhancement? In case it is, the 
> patch is easy to implement? 
>

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