Rails[PaperTrail]: accepts_nested_attributes_for not restored -

i'm using papertrail gem. have 3 models faq, subgroup, , group. group has one-to-many relationship subgroup, , subgroup had has-and-belongs-to-many relationship. papertrail doesn't support habtm changed has-many-through. when destroy faq reverted correct subgroup associations.

group on other hand accepts_nested_attributes_for :subgroups , seems why fails. subgroup gets destroyed whenever parent group gets destroyed; papertrail won't restore subgroup when parent group restored. however, can see there versions subgroup, papertrail isn't getting called restore them. how can so?

group.rb

class group < activerecord::base     has_many :subgroups, :dependent => :destroy, inverse_of: :group     validates :name, presence: true     #validates :subgroups, length: { minimum: 1 }     accepts_nested_attributes_for :subgroups, :allow_destroy => true     has_paper_trail end 

subgroup.rb

class subgroup < activerecord::base     belongs_to :group, inverse_of: :subgroups     has_many :faqs_subgroups     has_many :faqs, through: :faqs_subgroups     validates :name, presence: true     validates_presence_of :group     has_paper_trail end 

versions_controller.rb

class versionscontroller < applicationcontroller     def revert         @version = papertrail::version.where(:id => params[:id], :item_type => params[:item_type], :item_id => params[:item_id])[0]          if params[:item_type] == "group"             if @version.reify(:has_many => true)                 @version.reify(:has_many => true).save!             else                  @version.item.destroy             end         else             if @version.reify                 @version.reify.save!             else                 @version.item.destroy             end         end          link_name = params[:act] == "undo" ? "redo" : "undo"         link = view_context.link_to(link_name, revert_version_path(@version.next, :item_type => params[:item_type], :item_id => params[:item_id], :act => "redo"), :method => :post)          if @version.event == "create" && params[:item_type] == "faq"             redirect_to faqs_path, :notice => "successfully undid #{@version.event}. #{link}"         elsif @version.event == "create" && params[:item_type] == "group"             redirect_to groups_path,  :notice => "successfully undid #{@version.event}. #{link}"         else             redirect_to :back, :notice => "successfully undid #{@version.event}. #{link}"         end     end end 

undo_link method in groups_controller.rb

def undo_link   view_context.link_to("undo", revert_version_path(@group.versions.last, :item_type => "group", :item_id => @group.id, :act => "undo"), :method => :post) end 

if papertrail not support reverting subgroup, thinking saving ids , version ids of subgroups group has, , perhaps calling papertrail restore when parent group restored. what's plausible way of doing this?

thanks!

edit forgot add have seen this question not have problem destroying, restoring.

current solution: before destroying group, save ids of subgroups. then, pass array revert_version_path. after reify.save! on group, call revert-hm method in versions_controller manually reify.save subgroups.

revert_hm in versions_controller.rb

def revert_hm(item_type, item_id)     @version = papertrail::version.where(:item_type => item_type, :item_id => item_id).last     if @version.reify != nil         @version.reify.save!     else         @version.item.destroy     end end 

i don't save version id of subgroups because have not been destroyed yet, in destroyed version latest version want reify.save. can used :tag_list of acts_taggable_on though warning cannot papertrail make new versions when associations or tags changed.

it's messy solution if has better 1 please so.

p.s. if using elasticsearch have call model.import on model after calling method. otherwise, elasticsearch think model doesn't have these associations.