fix(mirror): include fields in mirror projections (#9884)

# Which Problems Are Solved

- fields projections were not projected during mirror

# How the Problems Are Solved

- an extra step during projections was added to mirror the fields 

# Additional Changes

none

# Additional Context

none

cmd/mirror/projections.go

@@ -283,6 +283,13 @@ func execProjections(ctx context.Context, es *eventstore.Eventstore, instances <
 			continue
 		}
 
+		err = projection.ProjectInstanceFields(ctx)
+		if err != nil {
+			logging.WithFields("instance", instance).WithError(err).Info("trigger fields failed")
+			failedInstances <- instance
+			continue
+		}
+
 		err = auth_handler.ProjectInstance(ctx)
 		if err != nil {
 			logging.WithFields("instance", instance).OnError(err).Info("trigger auth handler failed")

internal/query/projection/projection.go

@@ -98,6 +98,7 @@ type projection interface {
 
 var (
 	projections []projection
+	fields      []*handler.FieldHandler
 )
 
 func Create(ctx context.Context, sqlClient *database.DB, es handler.EventStore, config Config, keyEncryptionAlgorithm crypto.EncryptionAlgorithm, certEncryptionAlgorithm crypto.EncryptionAlgorithm, systemUsers map[string]*internal_authz.SystemAPIUser) error {
@@ -176,6 +177,7 @@ func Create(ctx context.Context, sqlClient *database.DB, es handler.EventStore,
 	OrgDomainVerifiedFields = newFillOrgDomainVerifiedFields(applyCustomConfig(projectionConfig, config.Customizations[fieldsOrgDomainVerified]))
 
 	newProjectionsList()
+	newFieldsList()
 	return nil
 }
 
@@ -209,6 +211,18 @@ func ProjectInstance(ctx context.Context) error {
 	return nil
 }
 
+func ProjectInstanceFields(ctx context.Context) error {
+	for i, fieldProjection := range fields {
+		logging.WithFields("name", fieldProjection.ProjectionName(), "instance", internal_authz.GetInstance(ctx).InstanceID(), "index", fmt.Sprintf("%d/%d", i, len(fields))).Info("starting fields projection")
+		err := fieldProjection.Trigger(ctx)
+		if err != nil {
+			return err
+		}
+		logging.WithFields("name", fieldProjection.ProjectionName(), "instance", internal_authz.GetInstance(ctx).InstanceID()).Info("fields projection done")
+	}
+	return nil
+}
+
 func ApplyCustomConfig(customConfig CustomConfig) handler.Config {
 	return applyCustomConfig(projectionConfig, customConfig)
 }
@@ -236,6 +250,17 @@ func applyCustomConfig(config handler.Config, customConfig CustomConfig) handler
 	return config
 }
 
+// we know this is ugly, but we need to have a singleton slice of all projections
+// and are only able to initialize it after all projections are created
+// as setup and start currently create them individually, we make sure we get the right one
+// will be refactored when changing to new id based projections
+func newFieldsList() {
+	fields = []*handler.FieldHandler{
+		ProjectGrantFields,
+		OrgDomainVerifiedFields,
+	}
+}
+
 // we know this is ugly, but we need to have a singleton slice of all projections
 // and are only able to initialize it after all projections are created
 // as setup and start currently create them individually, we make sure we get the right one