Add a method to return the consumer class name

ee/app/models/concerns/geo/eventable.rb

@@ -19,5 +19,9 @@ module Geo
         ::Gitlab::Database::Subquery.self_join(limit(limit)).delete_all
       end
     end
+
+    def consumer_klass_name
+      self.class.name.demodulize
+    end
   end
 end

ee/lib/gitlab/geo/log_cursor/daemon.rb

@@ -114,7 +114,7 @@ module Gitlab
         end
 
         def event_klass_for(event)
-          event_klass_name = event.class.name.demodulize
+          event_klass_name = event.consumer_klass_name
           current_namespace = self.class.name.deconstantize
           Object.const_get("#{current_namespace}::Events::#{event_klass_name}", false)
         end

ee/spec/models/concerns/geo/eventable_spec.rb

@@ -20,4 +20,12 @@ RSpec.describe Geo::Eventable do
       end.to change { Geo::RepositoryUpdatedEvent.count }.by(-2)
     end
   end
+
+  describe '#consumer_klass_name' do
+    it 'returns the even class name without the module part' do
+      event = build(:geo_repository_created_event)
+
+      expect(event.consumer_klass_name).to eq 'RepositoryCreatedEvent'
+    end
+  end
 end