class Logic::Empty < Logic::Term def sources [] end def to_s(_type_de_champs = []) = I18n.t('logic.empty') def type(_type_de_champs = []) = :empty def errors(_type_de_champs = []) = ['empty'] def to_h { "term" => self.class.name } end def self.from_h(_h) self.new end def ==(other) self.class == other.class end def value nil end end