Wait, now that I think about it, this is the wrong place for that. It should go in `filters/forms.rb`
```ruby
# add on to this method
def default_input_type
  if reflection_for method.to_s.sub(/_id$/,'').to_sym
    :select
  elsif column = column_for(method)
    # ...
  elsif method =~ /(contains|starts_with|ends_with)\z/
    :string
  end
end
```