Unknown Action: The action 'create' could not be found for CommentsController - ruby-on-rails

Question

I'm working on an app that allows users to comment on a single "work" (think blog post). The associations in the models are as follows:
class User < ActiveRecord::Base
has_many :works
has_many :comments
class Work < ActiveRecord::Base
belongs_to :user
has_many :comments
class Comment < ActiveRecord::Base
belongs_to :user
belongs_to :post
belongs_to :work
There's a form on the Works show page that allows users to post a comment:
<%= form_for(#comment) do |f| %>
<%= render 'shared/error_messages', object: f.object %>
<div class="field">
<%= f.text_area :content, placeholder: "Post a comment!" %>
</div>
<%= f.submit "Post", class: "btn btn-small btn-primary" %>
<% end %>
The Works controller is as follows. Note that I'm adding the build comment functionality here so that the form on the Works page functions:
class WorksController < ApplicationController
#before_filter :current_user, only: [:edit, :update]
def index
#works = Work.all
#comment = #work.comments.build(params[:comment])
#comment.user = current_user
respond_to do |format|
format.html # index.html.erb
format.xml { render :xml => #works }
end
end
def create
#work = current_user.works.create(params[:work])
redirect_to current_user
end
def edit
#work = current_user.works.find(params[:id])
end
def new
#work = current_user.works.new
end
def destroy
#work = current_user.works.find(params[:id]).destroy
flash[:success] = "Work deleted"
redirect_to current_user
end
def update
#work = current_user.works.find(params[:id])
if #work.update_attributes(params[:work])
flash[:success] = "Profile updated"
redirect_to #work
else
render 'edit'
end
end
def show
#work = Work.find(params[:id])
#comment = #work.comments.build
#comment.user = current_user
#activities = PublicActivity::Activity.order("created_at DESC").where(trackable_type: "Work", trackable_id: #work).all
#comments = #work.comments.order("created_at DESC").where(work_id: #work ).all
respond_to do |format|
format.html # show.html.erb
format.xml { render :xml => #work }
end
end
end
And lastly, here is the Comments controller:
class CommentsController < ApplicationController
before_filter :authenticate_user!
def index
#comments = Comment.all
end
def show
#comment = Comment.find(params[:id])
#activities = PublicActivity::Activity.order("created_at DESC").where(trackable_type: "Comment", trackable_id: #comment).all
respond_to do |format|
format.html # show.html.erb
format.xml { render :xml => #comment }
end
def update
#comment = current_user.comments.find(params[:id])
if #comment.update_attributes(params[:comment])
flash[:success] = "Comment updated"
redirect_to #comment
end
end
def create
#work = Work.find(params[:id])
#comment = #work.comments.build(params[:comment])
#comment.user = current_user
if #comment.save
#flash[:success] = "Post created!"
redirect_to #work
else
render 'home#index'
end
end
end
end
When I attempt to submit a comment using the comment form on the works show view page, I get the following error:
Unknown action
The action 'create' could not be found for CommentsController
Why can't it find the create action on the Comments controller? Any help would be greatly appreciated.
Thanks!

Answer 1

Your comments controller show action is missing an end, i.e. this:
def show
#comment = Comment.find(params[:id])
#activities = PublicActivity::Activity.order("created_at DESC").where(trackable_type: "Comment", trackable_id: #comment).all
respond_to do |format|
format.html # show.html.erb
format.xml { render :xml => #comment }
end
should be this:
def show
#comment = Comment.find(params[:id])
#activities = PublicActivity::Activity.order("created_at DESC").where(trackable_type: "Comment", trackable_id: #comment).all
respond_to do |format|
format.html # show.html.erb
format.xml { render :xml => #comment }
end
end
(right now it is 'falling' into the create action so the create action never gets set up).
You will then probably need to change the final:
end
end
end
end
to be
end
end
end
as this was probably 'compensating' for the mismatch and allowing the page to precompile in Ruby.