private void Update(string assetPairId,
Func <AssetPairExtPriceSettings, AssetPairExtPriceSettings> changeFunc, string reason)
{
ImmutableSortedDictionary <string, ExchangeExtPriceSettings> oldExchanges = null;
ImmutableSortedDictionary <string, ExchangeExtPriceSettings> newExchanges = null;
_settingsRootService.Update(assetPairId, old =>
{
oldExchanges = old.ExtPriceSettings.Exchanges;
var newSettings = changeFunc(old.ExtPriceSettings);
newExchanges = newSettings.Exchanges;
return(new AssetPairSettings(old.QuotesSourceType, newSettings, old.CrossRateCalcInfo, old.AggregateOrderbookSettings));
});
oldExchanges.RequiredNotNull(nameof(oldExchanges));
newExchanges.RequiredNotNull(nameof(newExchanges));
ExchangesTemporarilyDisabledChanged(assetPairId, oldExchanges, newExchanges, reason);
CanPerformHedgingChanged(assetPairId, oldExchanges, newExchanges, reason);
}