Rails - Jul 2008 - Accessing owner object within composed_of block

Hi All,

In my Account model I have a composed_of declaration like this:

class Account
  composed_of :balance, ... do |value|
    Money.new(value, ''USD'')
  end
end

I would like to modify this so instead of always creating a USD, the
currency can be inferred from the ''currency'' field in account.
That
is,

class Account
  composed_of :balance, ... do |value|
    Money.new(value, currency)
  end
end

Of course, this wouldn''t work since Account#currency is not within the
block''s scope.  Is there anyway for me to access Account#currency
within the composed_of block?  Something akin to has_many''s
proxy_owner object.

Thanks,
Eric
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