mb-dev

<div class="container">
  <div class="header">
    Header - <a href="/products/">Product List</a>
  </div>
  <div id="product_details" style="display: none">
    <% if @product.present? %>
      <%= render file: 'products/product' %>
    <% end %>
  </div>
  <ul class="products" id="product_list" style="display: none">

mb-dev

class ProductsController < ApplicationController
  def index
    @products = Product.all

    if params[:product_id].present?
      @product = Product.find(params[:product_id])
    end

    if params[:product_id].present? and request.xhr?
      render 'product', layout: false

mb-dev

User:
{
     id: 1,
     name: 'Joe'
}

MailBucket:
{
    user_id: 1,
    location: 11,

mb-dev

class Book
   field :id
   field :title
 
   embeds_many :book_authors

   # Mongoid does not offer has_many :through
   def authors
      book_authors.collect(&:author)
   end

mb-dev

Book:
{
     id: 1,
     title: 'Article 1',
     authors: [{author_id: 1, name: 'Joe'}, {author_id: 2, name: 'Robert'}]
}

mb-dev

Book:
{
     id: 1,
     title: 'Article 1',
     authors: [1,2]
}

Author:
{
    id: 1,

mb-dev

class PostsController < ApplicationController
  def show
    @post = Post.find(params[:id])
    @presenter = PostPresenter.new(@post)
    respond_to do |format|
      format.html # show.html.erb
      format.json { render json: @post }
    end
  end
end

mb-dev

class PostPresenter
  def initialize(post)
    @post = post
  end

  def comments
    Comment.includes(:user).where(post_id: @post.id)
  end

end

mb-dev

<% cache @post do %>
  <div class="post">
    <%= render partial: 'post', locals: {post: @post} %>

    <hr/>

    <div class="comments">
      <% @presenter.comments.each do |comment| %>
        <% cache comment do %>
          <div id="comment-<%=comment.id%>">

mb-dev

<div class="post">
  <%= render partial: 'post', locals: {post: @post} %>

  <hr/>

  <div class="comments">
    <% @post.comments.each do |comment| %>
      <div id="comment-<%=comment.id%>">
        <%= comment.user.name %> says:
        <p>