Transfer dialog poll

[Geert Janssens]

Hi,

I'm looking for some input from users that frequently use the transfer dialog to set exchange 
rates/prices on transactions or while posting invoices.

When this dialog pops up, it proposes a best guess for the exchange rate/price based on prices 
already found in your price db. This is really only that - a best guess. It's almost certain you will 
want to change this, either by fetching a quote online or entering a rate manually you get from 
an external source.

This question is purely aimed at this best guess.

Suppose your price db has two price quotes that could serve as a best guess:
- the first is for a conversion in the exact same direction as you are entering now, but the date 
is one month off from your current transaction. So this rate may not be very accurate anymore 
for your transaction.
- the second is for a conversion in the opposite direction, but only 1 day off from your current 
transaction. To serve as a best guess it would of course be inverted before use. This rate may 
also be inaccurate because an opposite direction conversion usually has a different value.

Which of these two prices would you prefer as best guess ?

I discussed this also with some developers on irc. The consensus there was that if the opposite 
direction price is at least one week closer to the transaction date, the opposite direction price 
could be preferred for the best guess.

Would that formula be ok ?

Remember, this is only to determine the best guess, which only serves as a rough indication to 
the user for some order of magnitude the price is supposed to be in. It is fully expected that this 
price is corrected before the dialog is closed.

Geert