automatic import from ryanb/railscasts-episodes

README

@@ -0,0 +1,11 @@
+Railscasts Episode #142: Paypal Notifications
+
+http://railscasts.com/episodes/142
+
+Commands
+
+  script/generate nifty_scaffold payment_notification params:text cart_id:integer status:string transaction_id:string create
+
+  rake db:migrate
+
+  curl -d "txn_id=3XC103945N720211C&invoice=923204115&payment_status=Completed" http://localhost:3000/payment_notifications

store/.gitignore

@@ -0,0 +1,3 @@
+tmp/*
+log/*
+*.sqlite3

store/README

@@ -0,0 +1,4 @@
+Railscasts Example Store App
+--
+
+To setup the app, just run `rake setup`.

store/Rakefile

@@ -0,0 +1,10 @@
+# Add your own tasks in files placed in lib/tasks ending in .rake,
+# for example lib/tasks/capistrano.rake, and they will automatically be available to Rake.
+
+require(File.join(File.dirname(__FILE__), 'config', 'boot'))
+
+require 'rake'
+require 'rake/testtask'
+require 'rake/rdoctask'
+
+require 'tasks/rails'

store/app/controllers/application.rb

@@ -0,0 +1,27 @@
+# Filters added to this controller apply to all controllers in the application.
+# Likewise, all the methods added will be available for all controllers.
+
+class ApplicationController < ActionController::Base
+  helper :all # include all helpers, all the time
+
+  # See ActionController::RequestForgeryProtection for details
+  # Uncomment the :secret if you're not using the cookie session store
+  protect_from_forgery # :secret => '526292d4095d0fd8135a9aa118f5956e'
+
+  # See ActionController::Base for details 
+  # Uncomment this to filter the contents of submitted sensitive data parameters
+  # from your application log (in this case, all fields with names like "password"). 
+  # filter_parameter_logging :password
+
+  def current_cart
+    if session[:cart_id]
+      @current_cart ||= Cart.find(session[:cart_id])
+      session[:cart_id] = nil if @current_cart.purchased_at
+    end
+    if session[:cart_id].nil?
+      @current_cart = Cart.create!
+      session[:cart_id] = @current_cart.id
+    end
+    @current_cart
+  end
+end

store/app/controllers/carts_controller.rb

@@ -0,0 +1,5 @@
+class CartsController < ApplicationController
+  def show
+    @cart = current_cart
+  end
+end

store/app/controllers/categories_controller.rb

@@ -0,0 +1,44 @@
+class CategoriesController < ApplicationController
+  def index
+    @categories = Category.find(:all)
+  end
+
+  def show
+    @category = Category.find(params[:id])
+  end
+
+  def new
+    @category = Category.new
+  end
+
+  def create
+    @category = Category.new(params[:category])
+    if @category.save
+      flash[:notice] = "Successfully created category."
+      redirect_to @category
+    else
+      render :action => 'new'
+    end
+  end
+
+  def edit
+    @category = Category.find(params[:id])
+  end
+
+  def update
+    @category = Category.find(params[:id])
+    if @category.update_attributes(params[:category])
+      flash[:notice] = "Successfully updated category."
+      redirect_to @category
+    else
+      render :action => 'edit'
+    end
+  end
+
+  def destroy
+    @category = Category.find(params[:id])
+    @category.destroy
+    flash[:notice] = "Successfully destroyed category."
+    redirect_to categories_url
+  end
+end

store/app/controllers/line_items_controller.rb

@@ -0,0 +1,8 @@
+class LineItemsController < ApplicationController
+  def create
+    @product = Product.find(params[:product_id])
+    @line_item = LineItem.create!(:cart => current_cart, :product => @product, :quantity => 1, :unit_price => @product.price)
+    flash[:notice] = "Added #{@product.name} to cart."
+    redirect_to current_cart_url
+  end
+end

store/app/controllers/payment_notifications_controller.rb

@@ -0,0 +1,8 @@
+class PaymentNotificationsController < ApplicationController
+  protect_from_forgery :except => [:create]
+
+  def create
+    PaymentNotification.create!(:params => params, :cart_id => params[:invoice], :status => params[:payment_status], :transaction_id => params[:txn_id])
+    render :nothing => true
+  end
+end

store/app/controllers/products_controller.rb

@@ -0,0 +1,44 @@
+class ProductsController < ApplicationController
+  def index
+    @products = Product.all(:limit => 10)
+  end
+
+  def show
+    @product = Product.find(params[:id])
+  end
+
+  def new
+    @product = Product.new
+  end
+
+  def create
+    @product = Product.new(params[:product])
+    if @product.save
+      flash[:notice] = "Successfully created product."
+      redirect_to @product
+    else
+      render :action => 'new'
+    end
+  end
+
+  def edit
+    @product = Product.find(params[:id])
+  end
+
+  def update
+    @product = Product.find(params[:id])
+    if @product.update_attributes(params[:product])
+      flash[:notice] = "Successfully updated product."
+      redirect_to @product
+    else
+      render :action => 'edit'
+    end
+  end
+
+  def destroy
+    @product = Product.find(params[:id])
+    @product.destroy
+    flash[:notice] = "Successfully destroyed product."
+    redirect_to products_url
+  end
+end

store/app/helpers/application_helper.rb

@@ -0,0 +1,3 @@
+# Methods added to this helper will be available to all templates in the application.
+module ApplicationHelper
+end

store/app/helpers/carts_helper.rb

@@ -0,0 +1,2 @@
+module CartsHelper
+end

store/app/helpers/categories_helper.rb

@@ -0,0 +1,2 @@
+module CategoriesHelper
+end

store/app/helpers/layout_helper.rb

@@ -0,0 +1,23 @@
+# These helper methods can be called in your template to set variables to be used in the layout
+# This module should be included in all views globally,
+# to do so you may need to add this line to your ApplicationController
+#   helper :layout
+module LayoutHelper
+  def title(page_title, show_title = true)
+    @content_for_title = page_title.to_s
+    @show_title = show_title
+  end
+
+  def show_title?
+    @show_title
+  end
+
+  def stylesheet(*args)
+    content_for(:head) { stylesheet_link_tag(*args.map(&:to_s)) }
+  end
+
+  def javascript(*args)
+    args = args.map { |arg| arg == :defaults ? arg : arg.to_s }
+    content_for(:head) { javascript_include_tag(*args) }
+  end
+end

store/app/helpers/line_items_helper.rb

@@ -0,0 +1,2 @@
+module LineItemsHelper
+end

store/app/helpers/payment_notifications_helper.rb

@@ -0,0 +1,2 @@
+module PaymentNotificationsHelper
+end

store/app/helpers/products_helper.rb

@@ -0,0 +1,2 @@
+module ProductsHelper
+end

store/app/models/cart.rb

@@ -0,0 +1,28 @@
+class Cart < ActiveRecord::Base
+  has_many :line_items
+
+  def total_price
+    # convert to array so it doesn't try to do sum on database directly
+    line_items.to_a.sum(&:full_price)
+  end
+
+  def paypal_url(return_url, notify_url)
+    values = {
+      :business => 'seller_1229899173_biz@railscasts.com',
+      :cmd => '_cart',
+      :upload => 1,
+      :return => return_url,
+      :invoice => id,
+      :notify_url => notify_url
+    }
+    line_items.each_with_index do |item, index|
+      values.merge!({
+        "amount_#{index+1}" => item.unit_price,
+        "item_name_#{index+1}" => item.product.name,
+        "item_number_#{index+1}" => item.id,
+        "quantity_#{index+1}" => item.quantity
+      })
+    end
+    "https://www.sandbox.paypal.com/cgi-bin/webscr?" + values.to_query
+  end
+end

store/app/models/category.rb

@@ -0,0 +1,3 @@
+class Category < ActiveRecord::Base
+  has_many :products
+end

store/app/models/line_item.rb

@@ -0,0 +1,8 @@
+class LineItem < ActiveRecord::Base
+  belongs_to :cart
+  belongs_to :product
+
+  def full_price
+    unit_price * quantity
+  end
+end

store/app/models/payment_notification.rb

@@ -0,0 +1,13 @@
+class PaymentNotification < ActiveRecord::Base
+  belongs_to :cart
+  serialize :params
+  after_create :mark_cart_as_purchased
+
+  private
+
+  def mark_cart_as_purchased
+    if status == "Completed"
+      cart.update_attribute(:purchased_at, Time.now)
+    end
+  end
+end

store/app/models/product.rb

@@ -0,0 +1,3 @@
+class Product < ActiveRecord::Base
+  belongs_to :category
+end

store/app/views/carts/purchase.html.erb

@@ -0,0 +1,4 @@
+<% title "Purchase Successful" %>
+
+<p><strong>Thank you for your order!</strong> We will process it within one business day.</p>
+<p><%= link_to "Back to Products", products_path %></p>

store/app/views/carts/show.html.erb

@@ -0,0 +1,28 @@
+<% title "Shopping Cart" %>
+
+<table id="line_items">
+  <tr>
+    <th>Product</th>
+    <th>Qty</th>
+    <th class="price">Unit Price</th>
+    <th class="price">Full Price</th>
+  </tr>
+  <% for line_item in @cart.line_items %>
+    <tr class="<%= cycle :odd, :even %>">
+      <td><%=h line_item.product.name %></td>
+      <td class="qty"><%= line_item.quantity %></td>
+      <td class="price"><%= number_to_currency(line_item.unit_price) %></td>
+      <td class="price"><%= number_to_currency(line_item.full_price) %></td>
+    </tr>
+  <% end %>
+  <tr>
+    <td class="total price" colspan="4">
+      Total: <%= number_to_currency @cart.total_price %>
+    </td>
+  </tr>
+</table>
+
+<p>
+  <%= link_to "Continue Shopping", products_url %> |
+  <%= link_to "Checkout", @cart.paypal_url(products_url, payment_notifications_url) %>
+</p>

store/app/views/categories/_form.html.erb

@@ -0,0 +1,7 @@
+<% form_for @category do |f| %>
+  <p>
+    <%= f.label :name %><br />
+    <%= f.text_field :name %>
+  </p>
+  <p><%= f.submit "Submit" %></p>
+<% end %>

store/app/views/categories/edit.html.erb

@@ -0,0 +1,8 @@
+<% title "Edit Category" %>
+
+<%= render :partial => 'form' %>
+
+<p>
+  <%= link_to "Show", @category %> |
+  <%= link_to "View All", categories_path %>
+</p>

store/app/views/categories/index.html.erb

@@ -0,0 +1,13 @@
+<% title "Categories" %>
+
+<% for category in @categories %>
+  <div class="category">
+    <h3><%= link_to h(category.name), category %></h3>
+    <div class="actions">
+      <%= link_to "Edit", edit_category_path(category) %> |
+      <%= link_to "Destroy", category, :confirm => 'Are you sure?', :method => :delete %>
+    </div>
+  </div>
+<% end %>
+
+<p><%= link_to "New Category", new_category_path %></p>

store/app/views/categories/new.html.erb

@@ -0,0 +1,5 @@
+<% title "New Category" %>
+
+<%= render :partial => 'form' %>
+
+<p><%= link_to "Back to List", categories_path %></p>

store/app/views/categories/show.html.erb

@@ -0,0 +1,13 @@
+<% title @category.name %>
+
+<ul>
+<% for product in @category.products %>
+  <li><%= link_to h(product.name), product %></li>
+<% end %>
+</ul>
+
+<p>
+  <%= link_to "Edit", edit_category_path(@category) %> |
+  <%= link_to "Destroy", @category, :confirm => 'Are you sure?', :method => :delete %> |
+  <%= link_to "View All", categories_path %>
+</p>

store/app/views/layouts/application.html.erb

@@ -0,0 +1,22 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
+  "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html>
+  <head>
+    <title><%= h(yield(:title) || "Untitled") %></title>
+    <%= stylesheet_link_tag 'application' %>
+    <%= yield(:head) %>
+  </head>
+  <body>
+    <div id="container">
+      <%- flash.each do |name, msg| -%>
+        <%= content_tag :div, msg, :id => "flash_#{name}" %>
+      <%- end -%>
+      
+      <%- if show_title? -%>
+        <h1><%=h yield(:title) %></h1>
+      <%- end -%>
+      
+      <%= yield %>
+    </div>
+  </body>
+</html>