Ruby on Rails 4: Can't edit posts or comments - ruby-on-rails

Question

Here is how my app is setup.
#app/models/category.rb
class Category < ActiveRecord::Base
belongs_to :user
has_many :forums
end
#app/models/forum.rb
class Forum < ActiveRecord::Base
belongs_to :user
belongs_to :category
has_many :posts
end
#app/models/post.rb
class post < ActiveRecord::Base
belongs_to :user
belongs_to :forum
has_many :comments
end
#app/models/comment.rb
class Comment < ActiveRecord::Base
belongs_to :user
belongs_to :post
end
I'm having issues with my comment records. I can display them and create them, but can't edit/delete them as I can't figure out which link to set.
Here's my config/routes.rb
Rails.application.routes.draw do
devise_for :users, :path => '', :path_names => {:sign_up => 'register', :sign_in => 'login', :sign_out => 'logout'}
resources :categories
resources :forums do
resources :posts do
resources :comments
end
end
root 'categories#index'
end
Here is my comments controller.
class CommentsController < ApplicationController
def create
#forum = Forum.find(params[:forum_id])
#post = Post.find(params[:post_id])
#comment = #post.comments.create(params[:comment].permit(:comment))
#comment.user_id = current_user.id if current_user
#comment.save
if #comment.save
redirect_to [#forum, #post]
else
render 'new'
end
end
def edit
#forum = Forum.find(params[:forum_id])
#post = Post.find(params[:post_id])
#comment = #post.comments.find(params[:id])
end
def update
#forum = Forum.find(params(:forum_id])
#post = Post.find(params[:post_id])
#comment = #post.comments.find(params[:id])
if #comment.update(params[:comment].permit(:comment))
redirect_to post_path(#post)
else
render 'edit'
end
end
def destroy
#forum = Forum.find(params[:foumd_id])
#post = Post.find(params[:post_id])
#comment = #post.comments.find(params[:id])
#comment.destroy
redirect_to post_path(#post)
end
end
_comments.html.haml
.comment.clearfix
.content
%p.comment_content= comment.comment
%p.comment_author= comment.user.email
.buttons
= link_to "Edit", edit_forum_post_comment_path[#forum, #post]
I'm also having issues with editing my posts, I can create them no problem but can't edit them...
Posts controller
class PostsController < ApplicationController
before_action :find_post, only: [:show, :edit, :update, :destroy]
before_action :authenticate_user!, except: [:index, :show]
def index
#posts = Post.all
end
def show
end
def new
#forum = Forum.find(params[:forum_id])
#post = current_user.posts.build
end
def create
#forum = Forum.find(params[:forum_id])
#post = current_user.posts.build(post_params)
if #post.save
redirect_to [#forum, #post]
else
render 'new'
end
end
def edit
end
def update
#forum = Forum.find(params[:forum_id])
if #post.update(post_params)
redirect_to [#forum, #post]
else
render 'edit'
end
end
def destroy
#post.destroy
redirect_to root_path
end
private
def find_post
#post = Post.find(params[:id])
end
def post_params
params.require(:post).permit(:title, :content)
end
end
Logs
I, [2015-11-15T16:10:25.073062 #18541] INFO -- : Started GET "/forums/1/posts/1/" for 24.220.125.144 at 2015-11-15 16:10:25 -0600
I, [2015-11-15T16:10:25.122253 #18541] INFO -- : Processing by PostsController#show as HTML
I, [2015-11-15T16:10:25.122482 #18541] INFO -- : Parameters: {"forum_id"=>"1", "id"=>"1"}
D, [2015-11-15T16:10:25.148865 #18541] DEBUG -- : ^[[1m^[[36mPost Load (0.5ms)^[[0m ^[[1mSELECT `posts`.* FROM `posts` WHERE `posts$
D, [2015-11-15T16:10:25.185328 #18541] DEBUG -- : ^[[1m^[[35m (0.4ms)^[[0m SELECT COUNT(*) FROM `comments` WHERE `comments`.`post_id$
D, [2015-11-15T16:10:25.187051 #18541] DEBUG -- : ^[[1m^[[36mComment Load (0.3ms)^[[0m ^[[1mSELECT `comments`.* FROM `comments` WHER$
D, [2015-11-15T16:10:25.210686 #18541] DEBUG -- : ^[[1m^[[35mUser Load (0.4ms)^[[0m SELECT `users`.* FROM `users` WHERE `users`.`id$
I, [2015-11-15T16:10:25.232349 #18541] INFO -- : Rendered comments/_comment.html.haml (35.4ms)
I, [2015-11-15T16:10:25.232600 #18541] INFO -- : Rendered posts/show.html.haml within layouts/application (69.7ms)
I, [2015-11-15T16:10:25.233044 #18541] INFO -- : Completed 500 Internal Server Error in 110ms (ActiveRecord: 7.1ms)
F, [2015-11-15T16:10:25.235567 #18541] FATAL -- :
ActionView::Template::Error (No route matches {:action=>"edit", :controller=>"comments", :forum_id=>"1", :id=>"1"} missing required key$
3: %p.comment_content= comment.comment
4: %p.comment_author= comment.user.email
5: .buttons
6: = link_to "Edit", edit_forum_post_comment_path[#forum, #post]
app/views/comments/_comment.html.haml:6:in `_app_views_comments__comment_html_haml___1270861655862681835_22931440'
app/views/posts/show.html.haml:5:in `_app_views_posts_show_html_haml__2051422644921131492_20982460'
I, [2015-11-15T16:10:28.372822 #18541] INFO -- : Started GET "/forums/1/posts/1/edit" for 24.220.125.144 at 2015-11-15 16:10:28 -0600
I, [2015-11-15T16:10:28.375577 #18541] INFO -- : Processing by PostsController#edit as HTML
I, [2015-11-15T16:10:28.375656 #18541] INFO -- : Parameters: {"forum_id"=>"1", "id"=>"1"}
D, [2015-11-15T16:10:28.377175 #18541] DEBUG -- : ^[[1m^[[36mPost Load (0.4ms)^[[0m ^[[1mSELECT `posts`.* FROM `posts` WHERE `posts$
D, [2015-11-15T16:10:28.379458 #18541] DEBUG -- : ^[[1m^[[35mUser Load (0.3ms)^[[0m SELECT `users`.* FROM `users` WHERE `users`.`id$
I, [2015-11-15T16:10:28.403726 #18541] INFO -- : Rendered posts/_form.html.haml (20.6ms)
I, [2015-11-15T16:10:28.403924 #18541] INFO -- : Rendered posts/edit.html.haml within layouts/application (22.8ms)
I, [2015-11-15T16:10:28.404187 #18541] INFO -- : Completed 500 Internal Server Error in 28ms (ActiveRecord: 0.7ms)
F, [2015-11-15T16:10:28.405890 #18541] FATAL -- :
ActionView::Template::Error (undefined method `post_path' for #:0x00000003e04f18>):
1: = simple_form_for [#forum,#post] do |f|
2: = f.input :title
3: = f.input :content
4: = f.submit
app/views/posts/_form.html.haml:1:in `_app_views_posts__form_html_haml__3317057176452412006_32596640'
app/views/posts/edit.html.haml:3:in `_app_views_posts_edit_html_haml__3955498671314368903_32545500'

Answer 1

The error is as follows:
ActionView::Template::Error (No route matches {:action=>"edit", :controller=>"comments", :forum_id=>"1", :id=>"1"} missing required key$
ActionView::Template::Error (undefined method `post_path' for #:0x00000003e04f18>):
When asking questions / debugging in general, you need to start with the error / problem.
You've put up so much code most people will turn their noses up.
--
The error suggests a problem with your routes:
#config/routes.rb
Rails.application.routes.draw do
resources :categories
resources :forums do
resources :posts do
resources :comments
end
end
root 'categories#index'
end
The issue appears to be the way you're nesting your forms / posts / comments:
The first error is because you've not passed the post_id:
<%= link_to "Edit Comment", edit_forum_post_comment_path(#forum, #post, #comment) %>
The second error is because (I think) you've called your path without having the #forum variable populated. You should make sure that #forum is populated as follows:
#forum = Forum.find params[:forum_id]
#post = Post.new
Alternatively, you could build the post object on the #forum object, like so:
#forum = Forum.find params[:forum_id]
#post = #forum.posts.build
This should allow you to call <%= form_for #post do |f| %>
As a secondary to this, you need to look up the limits to nesting, as it deals directly with your problem:
Resources should never be nested more than 1 level deep.
Whilst I'd have to spend some time thinking about the best way to fix your issue, I'd do something like the following:
#config/routes.rb
resources :forums do
resources :posts, :comments
end
This will set the comments directly below the forums resource, allowing you to skip having to associate a forum and post each time you want to do anything with them...
<%= link_to "Edit Comment", edit_forums_comments_path(#forum, #comment) %>