def editCurrency(self, currencyid, currencyname, abbreviation, symbol ):
"""Edit currency 'currencyid' providing new name, abbreviation, symbol.
"""
currency = Currency(currencyid)
if not currency.name :
raise CurrencyError(
"Can't find Currency id %r which does not exist" % currencyid )
currency.editData( currencyname, abbreviation, symbol )
self.getCurrencies() # update currency list
return
