Found the solution. The following seems to work.
;; Add the net income / net loss line.
(add-subtotal-line my-table
(if (gnc-numeric-negative-p
(gnc:gnc-monetary-amount
(gnc:sum-collector-commodity
net-income report-commodity exchange-fn)))
(string-append (_ "Net loss") period-for)
(string-append (_ "Net income") period-for)
)
#f net-income)
Thanks.
From: Charles Day [mailto:ceda...@gmail.com]
Sent: January-26-09 4:09 AM
To: michael.mc...@sympatico.ca
Subject: Re: Problems testing the sign of a commodity collector.
...
Shouldn't the argument to gnc-numeric-negative-p be a gnc_numeric type
rather than a commodity collector? The commodity collector (net-income) will
be full of amounts in various currencies; it seems like you'd have to sum
them all all up into the reporting currency first before checking the sign.
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