app/admin/petition_types.rb
ActiveAdmin.register PetitionType do
permit_params :name, :description, :required_minimum_age,
:display_person_born_at, :display_person_birth_city,
:require_person_born_at, :require_person_birth_city,
:display_signature_person_citizen,
:display_signature_full_address,
:require_signature_full_address,
:custom_additional_info_visible,
:custom_additional_info_person_name,
:custom_additional_info_person_street,
:custom_additional_info_person_postalcode,
:custom_additional_info_person_function,
:custom_additional_info_subscribe,
:custom_additional_info_person_birth_date,
:custom_additional_info_person_birth_city,
:custom_additional_info_person_dutch_citizen,
:custom_additional_info_more_information, :country_code
filter :name
filter :description
filter :required_minimum_age
filter :display_person_born_at
filter :require_person_born_at
filter :display_person_birth_city
filter :require_person_birth_city
filter :display_signature_person_citizen
filter :display_signature_full_address
filter :require_signature_full_address
end