Iterate through activerecords

Hello,

I am a Rails newbie and I have problems to iterate through a list of records.

pseudo code.

def do something    @userlist = User.find(:all)    @userlist.each {|item| item.calculate_stats item.save} end

Ther problem is that running this throws an error: ArgumentError (wrong number of arguments (1 for 0)):

Any ideas what's goung wrong?

Thanks! Chris