adding episode 241

episode-241/README

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+Railscasts Episode #241: Simple Omniauth
+
+http://railscasts.com/episodes/241
+
+Commands
+
+  rails g controller sessions
+  rails g model user provider:string uid:string name:string
+  rake db:migrate

episode-241/blog/.gitignore

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+.bundle
+db/*.sqlite3
+log/*.log
+tmp/**/*

episode-241/blog/Gemfile

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+source 'http://rubygems.org'
+
+gem 'rails', '3.0.3'
+gem 'sqlite3-ruby', '1.2.5', :require => 'sqlite3'
+gem 'nifty-generators'
+gem 'omniauth'

episode-241/blog/Gemfile.lock

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+GEM
+  remote: http://rubygems.org/
+  specs:
+    abstract (1.0.0)
+    actionmailer (3.0.3)
+      actionpack (= 3.0.3)
+      mail (~> 2.2.9)
+    actionpack (3.0.3)
+      activemodel (= 3.0.3)
+      activesupport (= 3.0.3)
+      builder (~> 2.1.2)
+      erubis (~> 2.6.6)
+      i18n (~> 0.4)
+      rack (~> 1.2.1)
+      rack-mount (~> 0.6.13)
+      rack-test (~> 0.5.6)
+      tzinfo (~> 0.3.23)
+    activemodel (3.0.3)
+      activesupport (= 3.0.3)
+      builder (~> 2.1.2)
+      i18n (~> 0.4)
+    activerecord (3.0.3)
+      activemodel (= 3.0.3)
+      activesupport (= 3.0.3)
+      arel (~> 2.0.2)
+      tzinfo (~> 0.3.23)
+    activeresource (3.0.3)
+      activemodel (= 3.0.3)
+      activesupport (= 3.0.3)
+    activesupport (3.0.3)
+    addressable (2.2.2)
+    arel (2.0.4)
+    builder (2.1.2)
+    erubis (2.6.6)
+      abstract (>= 1.0.0)
+    faraday (0.5.3)
+      addressable (~> 2.2.2)
+      multipart-post (~> 1.0.1)
+      rack (>= 1.1.0, < 2)
+    i18n (0.4.2)
+    mail (2.2.10)
+      activesupport (>= 2.3.6)
+      i18n (~> 0.4.1)
+      mime-types (~> 1.16)
+      treetop (~> 1.4.8)
+    mime-types (1.16)
+    multi_json (0.0.5)
+    multipart-post (1.0.1)
+    net-ldap (0.1.1)
+    nifty-generators (0.4.2)
+    nokogiri (1.4.4)
+    oa-basic (0.1.6)
+      multi_json (~> 0.0.2)
+      nokogiri (~> 1.4.2)
+      oa-core (= 0.1.6)
+      rest-client (~> 1.6.0)
+    oa-core (0.1.6)
+      rack (~> 1.1)
+    oa-enterprise (0.1.6)
+      net-ldap (~> 0.1.1)
+      nokogiri (~> 1.4.2)
+      oa-core (= 0.1.6)
+      pyu-ruby-sasl (~> 0.0.3.1)
+      rubyntlm (~> 0.1.1)
+    oa-oauth (0.1.6)
+      multi_json (~> 0.0.2)
+      nokogiri (~> 1.4.2)
+      oa-core (= 0.1.6)
+      oauth (~> 0.4.0)
+      oauth2 (~> 0.1.0)
+    oa-openid (0.1.6)
+      oa-core (= 0.1.6)
+      rack-openid (~> 1.2.0)
+      ruby-openid-apps-discovery
+    oauth (0.4.4)
+    oauth2 (0.1.0)
+      faraday (~> 0.5.0)
+      multi_json (~> 0.0.4)
+    omniauth (0.1.6)
+      oa-basic (= 0.1.6)
+      oa-core (= 0.1.6)
+      oa-enterprise (= 0.1.6)
+      oa-oauth (= 0.1.6)
+      oa-openid (= 0.1.6)
+    polyglot (0.3.1)
+    pyu-ruby-sasl (0.0.3.2)
+    rack (1.2.1)
+    rack-mount (0.6.13)
+      rack (>= 1.0.0)
+    rack-openid (1.2.0)
+      rack (>= 1.1.0)
+      ruby-openid (>= 2.1.8)
+    rack-test (0.5.6)
+      rack (>= 1.0)
+    rails (3.0.3)
+      actionmailer (= 3.0.3)
+      actionpack (= 3.0.3)
+      activerecord (= 3.0.3)
+      activeresource (= 3.0.3)
+      activesupport (= 3.0.3)
+      bundler (~> 1.0)
+      railties (= 3.0.3)
+    railties (3.0.3)
+      actionpack (= 3.0.3)
+      activesupport (= 3.0.3)
+      rake (>= 0.8.7)
+      thor (~> 0.14.4)
+    rake (0.8.7)
+    rest-client (1.6.1)
+      mime-types (>= 1.16)
+    ruby-openid (2.1.8)
+    ruby-openid-apps-discovery (1.2.0)
+      ruby-openid (>= 2.1.7)
+    rubyntlm (0.1.1)
+    sqlite3-ruby (1.2.5)
+    thor (0.14.6)
+    treetop (1.4.9)
+      polyglot (>= 0.3.1)
+    tzinfo (0.3.23)
+
+PLATFORMS
+  ruby
+
+DEPENDENCIES
+  nifty-generators
+  omniauth
+  rails (= 3.0.3)
+  sqlite3-ruby (= 1.2.5)

episode-241/blog/README

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+Example Railscasts Application

episode-241/blog/Rakefile

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+# 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.expand_path('../config/application', __FILE__)
+require 'rake'
+
+Blog::Application.load_tasks

episode-241/blog/app/controllers/application_controller.rb

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+class ApplicationController < ActionController::Base
+  protect_from_forgery
+  helper_method :current_user
+
+  private
+
+  def current_user
+    @current_user ||= User.find(session[:user_id]) if session[:user_id]
+  end
+end

episode-241/blog/app/controllers/articles_controller.rb

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+class ArticlesController < ApplicationController
+  def index
+    @articles = Article.all
+  end
+
+  def show
+    @article = Article.find(params[:id])
+    @comment = Comment.new(:article_id => @article.id)
+  end
+
+  def new
+    @article = Article.new
+  end
+
+  def create
+    @article = Article.new(params[:article])
+    if @article.save
+      flash[:notice] = "Successfully created article."
+      redirect_to @article
+    else
+      render :action => 'new'
+    end
+  end
+
+  def edit
+    @article = Article.find(params[:id])
+  end
+
+  def update
+    @article = Article.find(params[:id])
+    if @article.update_attributes(params[:article])
+      flash[:notice] = "Successfully updated article."
+      redirect_to @article
+    else
+      render :action => 'edit'
+    end
+  end
+
+  def destroy
+    @article = Article.find(params[:id])
+    @article.destroy
+    flash[:notice] = "Successfully destroyed article."
+    redirect_to articles_url
+  end
+end

episode-241/blog/app/controllers/comments_controller.rb

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+class CommentsController < ApplicationController
+  def new
+    @comment = Comment.new
+  end
+
+  def create
+    @comment = Comment.new(params[:comment])
+    if @comment.save
+      flash[:notice] = "Successfully created comment."
+      redirect_to root_url
+    else
+      render :action => 'new'
+    end
+  end
+end

episode-241/blog/app/controllers/sessions_controller.rb

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+class SessionsController < ApplicationController
+  def create
+    auth = request.env["omniauth.auth"]
+    user = User.find_by_provider_and_uid(auth["provider"], auth["uid"]) || User.create_with_omniauth(auth)
+    session[:user_id] = user.id
+    redirect_to root_url, :notice => "Signed in!"
+  end
+
+  def destroy
+    session[:user_id] = nil
+    redirect_to root_url, :notice => "Signed out!"
+  end
+end

episode-241/blog/app/helpers/application_helper.rb

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+module ApplicationHelper
+end

episode-241/blog/app/helpers/articles_helper.rb

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+module ArticlesHelper
+end

episode-241/blog/app/helpers/comments_helper.rb

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+module CommentsHelper
+end

episode-241/blog/app/helpers/error_messages_helper.rb

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+module ErrorMessagesHelper
+  # Render error messages for the given objects. The :message and :header_message options are allowed.
+  def error_messages_for(*objects)
+    options = objects.extract_options! 
+    options[:header_message] ||= "Invalid Fields"
+    options[:message] ||= "Correct the following errors and try again."
+    messages = objects.compact.map { |o| o.errors.full_messages }.flatten
+    unless messages.empty?
+      content_tag(:div, :class => "error_messages") do
+        list_items = messages.map { |msg| content_tag(:li, msg) }
+        content_tag(:h2, options[:header_message]) + content_tag(:p, options[:message]) + content_tag(:ul, list_items.join.html_safe)
+      end
+    end
+  end
+
+  module FormBuilderAdditions
+    def error_messages(options = {})
+      @template.error_messages_for(@object, options)
+    end
+  end
+end
+
+ActionView::Helpers::FormBuilder.send(:include, ErrorMessagesHelper::FormBuilderAdditions)

episode-241/blog/app/helpers/layout_helper.rb

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+# 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) }
+  end
+
+  def javascript(*args)
+    content_for(:head) { javascript_include_tag(*args) }
+  end
+end

episode-241/blog/app/helpers/sessions_helper.rb

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+module SessionsHelper
+end

episode-241/blog/app/models/article.rb

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+class Article < ActiveRecord::Base
+  attr_accessible :name, :content
+  has_many :comments
+end

episode-241/blog/app/models/comment.rb

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+class Comment < ActiveRecord::Base
+  attr_accessible :article_id, :name, :content
+  belongs_to :article
+end

episode-241/blog/app/models/user.rb

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+class User < ActiveRecord::Base
+  def self.create_with_omniauth(auth)
+    create! do |user|
+      user.provider = auth["provider"]
+      user.uid = auth["uid"]
+      user.name = auth["user_info"]["name"]
+    end
+  end
+end

episode-241/blog/app/views/articles/_form.html.erb

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+<%= form_for @article do |f| %>
+  <%= f.error_messages %>
+  <p>
+    <%= f.label :name %><br />
+    <%= f.text_field :name %>
+  </p>
+  <p>
+    <%= f.label :content %><br />
+    <%= f.text_area :content %>
+  </p>
+  <p><%= f.submit %></p>
+<% end %>

episode-241/blog/app/views/articles/edit.html.erb

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+<% title "Edit Article" %>
+
+<%= render 'form' %>
+
+<p>
+  <%= link_to "Show", @article %> |
+  <%= link_to "View All", articles_path %>
+</p>

episode-241/blog/app/views/articles/index.html.erb

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+<% title "Articles" %>
+
+<div id="articles">
+<% for article in @articles %>
+  <h2>
+    <%= link_to article.name, article %>
+    <span class="comments">(<%= pluralize(article.comments.size, 'comment') %>)</span>
+  </h2>
+  <div class="created_at">on <%= article.created_at.strftime('%b %d, %Y') %></div>
+  <div class="content"><%= simple_format(article.content) %></div>
+<% end %>
+</div>
+
+<p><%= link_to "New Article", new_article_path %></p>

episode-241/blog/app/views/articles/new.html.erb

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+<% title "New Article" %>
+
+<%= render 'form' %>
+
+<p><%= link_to "Back to List", articles_path %></p>

episode-241/blog/app/views/articles/show.html.erb

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+<% title @article.name %>
+
+<%= simple_format @article.content %>
+
+<p><%= link_to "Back to Articles", articles_path %></p>
+
+<% unless @article.comments.empty? %>
+  <h2><%= pluralize(@article.comments.size, 'comment') %></h2>
+
+  <div id="comments">
+  <% for comment in @article.comments %>
+    <div class="comment">
+      <strong><%= comment.name %></strong>
+      <em>on <%= comment.created_at.strftime('%b %d, %Y at %I:%M %p') %></em>
+      <%= simple_format comment.content %>
+    </div>
+  <% end %>
+  </div>
+<% end %>
+
+<h3>Add your comment:</h3>
+
+<%= render :partial => 'comments/form' %>