# If I want my title attribute to be made up of several other attributes,
# how do you make it work for new records.

# E.g., this works for editing a record
def title=(title)
  title = [date.year, date.month, date.day].compact.join('-') if title.blank?
  write_attribute(:title, title)
end

# But for a new record, the date attribute doesn't exist yet
# and the params are (without violating MVC) inaccessible.

# So what do you do?