class Import::CategoryMapping < Import::Mapping class << self def mapping_values(import) import.rows.map(&:category).uniq end end def selectable_values family_categories = import.family.categories.alphabetically.map { |category| [ category.name, category.id ] } unless key.blank? family_categories.unshift [ "Add as new category", CREATE_NEW_KEY ] end family_categories end def requires_selection? false end def values_count import.rows.where(category: key).count end def mappable_class Category end def create_mappable! return unless creatable? self.mappable = import.family.categories.find_or_create_by!(name: key) save! end end