ruby on rails - url helper for namespace nested model -

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i using public_activity gem. use gem, not need create activities controller it. did not. however, have comments controller. want have following url helper comment's create action:

public_activity_activity_comments_path(@activity)

i have tried 2 things in routes , both have failed. first, tried using namespace route:

  namespace :public_activity     resources :activity       resources :comments     end   end

this produces error:

actioncontroller::routingerror - uninitialized constant publicactivity::commentscontroller:

since not have publicactivity::activities controller, tried instead:

get '/public_activity/activity/:activity_id/comments/new', to: 'comments#new' post '/public_activity/activity/:activity_id/comments', to: 'comments#create'

however, not seem produce url helpers @ all, gives me following error:

nomethoderror - undefined method `public_activity_activity_comments_path' #<#<class:0x007f868e1b7760>:0x007f868e1afd58>:

the reason why want route because in comments view, commentable can model, prefer have polymorphic form:

<%= form_for [commentable, comment.new] |f| %>   ...

am out of luck? have hardcore url form_for?

imho, need play polymorphic association , form, public_activity record activities if correctly configure any model of yours.


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