class Champs::RepetitionChamp < Champ has_many :champs, -> { ordered }, foreign_key: :parent_id, inverse_of: :parent, dependent: :destroy accepts_nested_attributes_for :champs, allow_destroy: true def rows champs.group_by(&:row).values end def add_row(row = 0) type_de_champ.types_de_champ.each do |type_de_champ| self.champs << type_de_champ.champ.build(row: row) end end def mandatory_and_blank? mandatory? && champs.empty? end def search_terms # The user cannot enter any information here so it doesn’t make much sense to search end end