app/controllers/buildings_controller.rb
class BuildingsController < ContentController
private
def content_param_list
[
:name, :universe_id, :privacy, :page_type
] + [ #<relations>
custom_attribute_values: [:name, :value],
building_towns_attributes: [:id, :town_id, :_destroy],
building_countries_attributes: [:id, :country_id, :_destroy],
building_landmarks_attributes: [:id, :landmark_id, :_destroy],
building_locations_attributes: [:id, :location_id, :_destroy],
building_nearby_buildings_attributes: [:id, :nearby_building_id, :_destroy],
building_schools_attributes: [:id, :district_school_id, :_destroy]
]
end
end