Hello,

I'm trying to setup the Event calendar module suit my needs, so far it works very well.
Have followed the tutorial http://doc.silverstripe.org/recipes:extending_the_event_calendar?s=recipes%252520calendar#overview
(One thing though - in the section Modifying the Table field, i think the following code is missing: $this->addPopupFields(array(new TextField('Location'))); or am i missing something?)

I have added 2 custom db fields (City, Location as Varchar) to CourseDateTime, my extension of CalendarDateTime.
http://pastie.org/1147745

I now need to add a filter option for these two fields, preferably as dropdown.
How can this be done?

Code
My CourseHolder: http://pastie.org/1147750
My Course: http://pastie.org/1147752