Ключевые слова: JRuby [4] 3 tier architecture [1] numbers [1] jlength [1] delete_all [1] attach file [1] Cascade deleting [1] Работа с масивами [1] Measure [1] visual_effect [1] acts_as_nested_set [1] работа [3] forum todo [1] модель [1] MSN [1] Dir [1] nil object [1] rel [1] gitrails [1] удаленно [1]