Rails Comments

comments_controller.rb

class CommentsController < ApplicationController
  
  before_filter :get_post
  
  def get_post
    @post = Post.find(params[:post_id]) # comment model has this table, so why are we calling it on post db?
  end
  
  def create
    @comment = @post.comments.new(params[:comment])
    if @comment.save
      flash[:notice] = "Comment added"
      redirect_to @post
    else
      flash[:error] = "Screwed up!"
      render "posts/show"
    end 
  end

  def destroy
    @comment = @post.comments(params[:id])
    @comment.destroy
    redirect_to @post
  end
end

posts_controller.rb

class PostsController < ApplicationController
  
  before_filter :get_post, only: [:show, :edit, :update, :destroy]
  
  def get_post
    @post = Post.find(params[:id])
  end
  
  def index
    @posts = Post.all
  end

  def show    
    @new_comment = @post.comments.build
    @comments = @post.comments.all
    # @comment = @post.comments.find(params[:id])  trying to access each individual comment on its parent post
  end

  def new
    @post = Post.new
  end

  def create
    @post = Post.new(params[:post])
    if @post.save
      flash[:notice] = "Successfully created a new post"
      redirect_to posts_path
    else
      flash[:error] = "Check yourself, you just wrecked yourself"
      render "new"
    end
  end

  def edit
  end

  def update
    if @post.update_attributes(params[:post])
      flash[:notice] = "Successfully updated a new post"
      redirect_to @post
    else 
      flash[:error] = "Check yourself, cause you wrecked yourself"
      render "edit"
    end
  end

  def destroy
    @post.destroy
    flash[:notice] = "Post Deleted"
    redirect_to posts_path
  end
end

routes.rb

Blog::Application.routes.draw do

  resources :posts do
    resources :comments
  end 
  
  root :to => "posts#index"
end

show.html.erb (post show)

<%= link_to "Home", posts_path %>

<section class="posts">
  <article class="post">
    <h3><%= @post.title %></h3>
    <h4><%= @post.created_at.strftime("%d %b. %Y")%></h4>
	<iframe width="560" height="315" src="<%= @post.youtube %>" frameborder="0" allowfullscreen></iframe>
    <p><%= @post.content %></p>
  </article>
</section>

<%= link_to "Edit", edit_post_path(@post) %>
<%= link_to "Delete", @post, :confirm => "Double-Check?", :method => :delete %>

<hr>

<section class="new-comment">
  <%= render "comments/comment_form" %>
</section>

<section class="comments">
  <% @comments.each do |comment| %>
    <header class="comment-header"><%= comment.name %></header>
    <p><%= comment.comment %></p>
    <%= link_to "Edit", edit_comment_path(comment) %>  
    <hr>
  <% end %>
</section>