def change_setting key, value
  s = Setting.find_or_initialize_by_key key
  s.value = value
  if s.new_record?
    s.data_type = value.class.to_s.downcase
    s.category = 'app'
  end

  s.save!
end

def set_variant variant, logo, num_planet_images, sidebar_plus_mode, tutorial_above_title
  change_setting 'variant', variant

  change_setting 'logo_filename', logo

  change_setting 'num_planet_images', num_planet_images

  change_setting 'sidebar_plus_mode', sidebar_plus_mode

  change_setting 'tutorial_above_title', tutorial_above_title

  BlueFrog.cache.clear
end