append events without return value

internal/eventstore/v2/eventstore.go

@@ -142,7 +142,7 @@ type reducer interface {
 	// it only appends the newly added events
 	Reduce() error
 	//AppendEvents appends the passed events to an internal list of events
-	AppendEvents(...EventReader) error
+	AppendEvents(...EventReader)
 }
 
 //FilterToReducer filters the events based on the search query, appends all events to the reducer and calls it's reduce function
@@ -151,9 +151,8 @@ func (es *Eventstore) FilterToReducer(ctx context.Context, searchQuery *SearchQu
 	if err != nil {
 		return err
 	}
-	if err = r.AppendEvents(events...); err != nil {
-		return err
-	}
+
+	r.AppendEvents(events...)
 
 	return r.Reduce()
 }
@@ -180,9 +179,7 @@ func (es *Eventstore) FilterToQueryReducer(ctx context.Context, r queryReducer)
 	if err != nil {
 		return err
 	}
-	if err = r.AppendEvents(events...); err != nil {
-		return err
-	}
+	r.AppendEvents(events...)
 
 	return r.Reduce()
 }

internal/eventstore/v2/write_model.go

@@ -1,5 +1,7 @@
 package eventstore
 
+import "time"
+
 func NewWriteModel() *WriteModel {
 	return &WriteModel{
 		Events: []EventReader{},
@@ -14,6 +16,7 @@ type WriteModel struct {
 	ProcessedSequence uint64        `json:"-"`
 	Events            []EventReader `json:"-"`
 	ResourceOwner     string        `json:"-"`
+	ChangeDate        time.Time     `json:"-"`
 }
 
 //AppendEvents adds all the events to the read model.
@@ -38,6 +41,7 @@ func (wm *WriteModel) Reduce() error {
 	}
 
 	wm.ProcessedSequence = wm.Events[len(wm.Events)-1].Sequence()
+	wm.ChangeDate = wm.Events[len(wm.Events)-1].CreationDate()
 
 	// all events processed and not needed anymore
 	wm.Events = nil