update

pkg/cart/mutation_confirmation_viewed.go

@@ -7,7 +7,15 @@ import (
 )
 
 func ConfirmationViewed(grain *CartGrain, req *messages.ConfirmationViewed) error {
-	grain.ConfirmationViewCount++
-	grain.ConfirmationLastViewedAt = time.Now()
+	if grain.Confirmation == nil {
+		grain.Confirmation = &ConfirmationStatus{
+			ViewCount:    1,
+			LastViewedAt: time.Now(),
+		}
+	} else {
+		grain.Confirmation.ViewCount++
+		grain.Confirmation.LastViewedAt = time.Now()
+	}
+
 	return nil
 }