fix: metoken medians (#2346)

* fix: metoken medians

* Update abci.go

Co-authored-by: Robert Zaremba <robert@zaremba.ch>

* add a log & changelog entry

* actually, remove this log and use the err scope fix

---------

Co-authored-by: Robert Zaremba <robert@zaremba.ch>

CHANGELOG.md

@@ -51,6 +51,7 @@ Ref: https://keepachangelog.com/en/1.0.0/
 ### Bug Fixes
 
 - [2315](https://github.com/umee-network/umee/pull/2215) Improve reliability of MaxBorrow, MaxWithdraw when special asset pairs present.
+- [2346](https://github.com/umee-network/umee/pull/2346) Fix an issue where metokens were not included in historic data.
 
 ### Improvements
 

x/oracle/abci.go

@@ -77,16 +77,23 @@ func CalcPrices(ctx sdk.Context, params types.Params, k keeper.Keeper) error {
 		}
 		// save the exchange rate to store with denom and timestamp
 		k.SetExchangeRate(ctx, denom, exchangeRate)
+	}
 
-		if k.IsPeriodLastBlock(ctx, params.HistoricStampPeriod) {
-			k.AddHistoricPrice(ctx, denom, exchangeRate)
-		}
-
-		// Calculate and stamp median/median deviation if median stamp period has passed
-		if k.IsPeriodLastBlock(ctx, params.MedianStampPeriod) {
-			if err = k.CalcAndSetHistoricMedian(ctx, denom); err != nil {
-				return err
-			}
+	if k.IsPeriodLastBlock(ctx, params.HistoricStampPeriod) {
+		k.IterateExchangeRates(ctx, func(denom string, exgRate sdk.Dec, _ time.Time) (stop bool) {
+			k.AddHistoricPrice(ctx, denom, exgRate)
+			return false
+		})
+	}
+	// Calculate and stamp median/median deviation if median stamp period has passed
+	if k.IsPeriodLastBlock(ctx, params.MedianStampPeriod) {
+		var err error
+		k.IterateExchangeRates(ctx, func(denom string, _ sdk.Dec, _ time.Time) (stop bool) {
+			err = k.CalcAndSetHistoricMedian(ctx, denom)
+			return err != nil
+		})
+		if err != nil {
+			return err
 		}
 	}