Add new route to view all RFCs the user has commented on

app/controllers/request_for_comments_controller.rb

@@ -22,6 +22,20 @@ class RequestForCommentsController < ApplicationController
     render 'index'
   end
 
+  def get_rfcs_with_my_comments
+    @search = RequestForComment
+                  .joins(:comments)
+                  .where(comments: {user_id: current_user.id})
+                  .group('request_for_comments.id')
+                  .joins(:comments)
+                  .group('request_for_comments.id')
+                  .select('request_for_comments.*, max(comments.updated_at) as last_comment')
+                  .order('last_comment DESC')
+                  .search(params[:q])
+    @request_for_comments = @search.result.paginate(page: params[:page])
+    render 'index'
+  end
+
   def mark_as_solved
     authorize!
     @request_for_comment.solved = true

app/views/request_for_comments/index.html.slim

@@ -37,7 +37,7 @@ h1 = RequestForComment.model_name.human(count: 2)
           td = request_for_comment.comments_count
           td = request_for_comment.user.displayname
           td = t('shared.time.before', time: distance_of_time_in_words_to_now(request_for_comment.created_at))
-          - last_comment = request_for_comment.comments.order('created_at DESC').first
-          td = t('shared.time.before', time: distance_of_time_in_words_to_now(last_comment.nil? ? request_for_comment.updated_at : last_comment.updated_at))
+          //- last_comment = request_for_comment.last_comment || request_for_comment.comments.order('created_at DESC').try(:first).try(:updated_at)
+          td = t('shared.time.before', time: distance_of_time_in_words_to_now(request_for_comment.last_comment))
 
 = render('shared/pagination', collection: @request_for_comments)