class Champs::DateChamp < Champ before_validation :convert_to_iso8601, unless: -> { validation_context == :prefill } validate :iso_8601 def search_terms # Text search is pretty useless for dates so we’re not including these champs end def to_s value.present? ? I18n.l(Time.zone.parse(value), format: '%d %B %Y') : "" rescue ArgumentError value.presence || "" # old dossiers can have not parseable dates end alias for_tag to_s private def convert_to_iso8601 return if likely_iso8601_format? && parsable_iso8601? self.value = if /^\d{2}\/\d{2}\/\d{4}$/.match?(value) Date.parse(value).iso8601 else nil end end def iso_8601 return if parsable_iso8601? || value.blank? # i18n-tasks-use t('errors.messages.not_a_date') errors.add :date, errors.generate_message(:value, :not_a_date) end def likely_iso8601_format? /^\d{4}-\d{2}-\d{2}$/.match?(value) end def parsable_iso8601? Date.parse(value) true rescue ArgumentError, # case 2023-27-02, out of range TypeError # nil false end end