Rails 4: comment partial not rendering - ruby

Question

Trying to display comments for photo, photo belongs to profile. html does not render.
The pertinent code:
routes.rb
resources :profiles do
resources :photos do
resources :comments do
resources :comments
end
end
end
comments/_comment.html.haml
= comments.each do |comment|
%li
= comment.body
\-
%small Submitted
= #{time_ago_in_words(comment.created_at)}
= semantic_form_for [#profile, #photo, comment, Comment.new] do |f|
= f.inputs do
= f.input :body, placeholder: "Add a Reply"
%br/
= f.actions do
= f.action :submit, :as => :input, label: "Reply"
%ul
- render partial: 'comments/comment', locals: {comments: comment.comments}
models/photo.rb
class Photo < ActiveRecord::Base
belongs_to :profile
has_many :comments, as: :commentable, :dependent => :destroy
end
models/comment.rb
class Comment < ActiveRecord::Base
belongs_to :profile
belongs_to :commentable, polymorphic: true
has_many :comments, as: :commentable, :dependent => :destroy
end
models/profile.rb
class Profile < ActiveRecord::Base
belongs_to :user
has_many :photos, :dependent => :destroy
has_many :comments, :dependent => :destroy
end
app/controllers/phtos_controller.rb
class PhotosController < ApplicationController
before_action :set_photo, only: [:show, :edit, :update, :destroy]
before_action :set_profile
load_and_authorize_resource
def index
#photos = Photo.where(:profile => #profile)
end
def show
end
def new
#photo = Photo.new(:profile => #profile)
end
def edit
end
def create
#photo = Photo.new(photo_params.merge(:profile_id => #profile.id))
respond_to do |format|
if #photo.save
format.html { redirect_to [#profile, #photo], notice: 'Photo was successfully created.' }
format.json { render :show, status: :created, location: #photo }
else
format.html { render :new }
format.json { render json: #photo.errors, status: :unprocessable_entity }
end
end
end
def update
respond_to do |format|
if #photo.update(photo_params)
format.html { redirect_to [#profile, #photo], notice: 'Photo was successfully updated.' }
format.json { render :show, status: :ok, location: #photo }
else
format.html { render :edit }
format.json { render json: #photo.errors, status: :unprocessable_entity }
end
end
end
def destroy
#photo.destroy
respond_to do |format|
format.html { redirect_to profile_photos_url, notice: 'Photo was successfully destroyed.' }
format.json { head :no_content }
end
end
private
# Use callbacks to share common setup or constraints between actions.
def set_photo
#photo = Photo.find(params[:id])
end
def set_profile
#profile = Profile.find(params[:profile_id])
end
# Never trust parameters from the scary internet, only allow the white list through.
def photo_params
params.require(:photo).permit(:description, :attachment)
end
end
/app/views/photos/show.html.haml
= render partial: "layouts/sub_header", locals: {heading: #photo.profile.name + "'s", sub_heading: "photo", current_bread_crumb: #photo.profile.name + "'s photo", include_crumbs: true}
/ Intro Content
.row
.col-md-6
= image_tag #photo.attachment.url(:large), :class => "img-responsive"
.col-md-6
%p
%h2 About this photo...
= simple_format(#photo.description)
,
/ /.row
%h3 Comments
= semantic_form_for [#profile, #photo, Comment.new] do |f|
= f.inputs do
= f.input :body, :as => :text
= f.actions do
= f.action :submit, :as => :input
%ul
- render partial: 'comments/comment', locals: {comments: #photo.comments}
- if current_user == #profile.user
= link_to 'Edit', edit_profile_photo_path(#profile, #photo)
|
= link_to 'Back', :back
Data is being inserted into the database (except the profile_id, but I will save that for another post). I manually updated the profile_id in the db to make see if it was just a data integrity issue, still nothing.
I have tried moving the resources around in the routes.rb, I have tried refactoring the views to load the collection directly without the partial, nothing seems to work.
Additionally, if I comment out the partial and use this code I do see comment bodies on the page, so it is definitely something I am doing wrong in the call to the partial or inside the partial itself.
%ul
- #photo.comments.each do |comment|
= comment.body
I cannot seem to crack this one and I know it isn't magic, but I clearly not seeing something.
Thanks for any help!

Answer 1

Change show.html.haml to:
%ul
- render 'comments/comment', locals: {comments: #photo.comments}
Reason being, is that you can't render a view within a view, so the above will assume you are looking for a partial named _comment.html.haml within the comments folder.

Answer 2

Thanks Marc and Jarvis for all your help, I still don't know why that wasn't working, but looking at the ActionView::PartialRender at api.rubyonrails.org I found that this does work...
- #photo.comments.each do |comment|
= render partial: 'comments/comment', locals: { comment: comment }
I basically have to do the iterating myself even though clearly in the guide Marc referenced it said I should be able to do what I had written.
Oh well, on to the next problem.
Thanks again!