adding episode 251

episode-251/README

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+Railscasts Episode #251: MetaWhere & MetaSearch
+
+http://railscasts.com/episodes/251
+
+rails console
+
+  Product.where(:price.lt => 5)
+  Product.where({:price.lt => 5} | {:name.matches => "%video%"})
+  Product.order(:released_at.desc)
+  MetaWhere.operator_overload!
+  Product.where(:price < 5)

episode-251/store/.gitignore

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

episode-251/store/Gemfile

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+source 'http://rubygems.org'
+
+gem 'rails', '3.0.3'
+
+# Bundle edge Rails instead:
+# gem 'rails', :git => 'git://github.com/rails/rails.git'
+
+gem 'sqlite3-ruby', '1.2.5', :require => 'sqlite3'
+gem 'nifty-generators'
+gem 'will_paginate', '3.0.pre2'
+gem 'jquery-rails'
+
+gem "meta_where"
+gem "meta_search"
+
+# Use unicorn as the web server
+# gem 'unicorn'
+
+# Deploy with Capistrano
+# gem 'capistrano'
+
+# To use debugger
+# gem 'ruby-debug'
+
+# Bundle the extra gems:
+# gem 'bj'
+# gem 'nokogiri', '1.4.1'
+# gem 'sqlite3-ruby', :require => 'sqlite3'
+# gem 'aws-s3', :require => 'aws/s3'
+
+# Bundle gems for the local environment. Make sure to
+# put test-only gems in this group so their generators
+# and rake tasks are available in development mode:
+# group :development, :test do
+#   gem 'webrat'
+# end
+
+gem "hirb", :group => :development

episode-251/store/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)
+    arel (2.0.6)
+    builder (2.1.2)
+    erubis (2.6.6)
+      abstract (>= 1.0.0)
+    hirb (0.3.6)
+    i18n (0.5.0)
+    jquery-rails (0.2.6)
+      rails (~> 3.0)
+      thor (~> 0.14.4)
+    mail (2.2.12)
+      activesupport (>= 2.3.6)
+      i18n (>= 0.4.0)
+      mime-types (~> 1.16)
+      treetop (~> 1.4.8)
+    meta_search (1.0.1)
+      actionpack (~> 3.0.2)
+      activerecord (~> 3.0.2)
+      activesupport (~> 3.0.2)
+      arel (~> 2.0.2)
+    meta_where (1.0.1)
+      activerecord (~> 3.0.2)
+      activesupport (~> 3.0.2)
+      arel (~> 2.0.2)
+    mime-types (1.16)
+    nifty-generators (0.4.2)
+    polyglot (0.3.1)
+    rack (1.2.1)
+    rack-mount (0.6.13)
+      rack (>= 1.0.0)
+    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)
+    sqlite3-ruby (1.2.5)
+    thor (0.14.6)
+    treetop (1.4.9)
+      polyglot (>= 0.3.1)
+    tzinfo (0.3.23)
+    will_paginate (3.0.pre2)
+
+PLATFORMS
+  ruby
+
+DEPENDENCIES
+  hirb
+  jquery-rails
+  meta_search
+  meta_where
+  nifty-generators
+  rails (= 3.0.3)
+  sqlite3-ruby (= 1.2.5)
+  will_paginate (= 3.0.pre2)

episode-251/store/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'
+
+Store::Application.load_tasks

episode-251/store/app/controllers/application_controller.rb

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+class ApplicationController < ActionController::Base
+  protect_from_forgery
+end

episode-251/store/app/controllers/products_controller.rb

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+class ProductsController < ApplicationController
+  def index
+    @search = Product.search(params[:search])
+    @products = @search.all
+  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
+      redirect_to @product, :notice => "Successfully created 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])
+      redirect_to @product, :notice => "Successfully updated product."
+    else
+      render :action => 'edit'
+    end
+  end
+
+  def destroy
+    @product = Product.find(params[:id])
+    @product.destroy
+    redirect_to products_url, :notice => "Successfully destroyed product."
+  end
+end

episode-251/store/app/helpers/application_helper.rb

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+module ApplicationHelper
+  def sortable(column, title = nil)
+    title ||= column.titleize
+    css_class = column == sort_column ? "current #{sort_direction}" : nil
+    direction = column == sort_column && sort_direction == "asc" ? "desc" : "asc"
+    link_to title, params.merge(:sort => column, :direction => direction, :page => nil), {:class => css_class}
+  end
+end

episode-251/store/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-251/store/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-251/store/app/helpers/products_helper.rb

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+module ProductsHelper
+end

episode-251/store/app/models/product.rb

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+class Product < ActiveRecord::Base
+  attr_accessible :name, :price, :released_at
+end

episode-251/store/app/views/layouts/application.html.erb

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+<!DOCTYPE html>
+<html>
+  <head>
+    <title><%= yield(:title) || "Untitled" %></title>
+    <%= stylesheet_link_tag "application" %>
+    <%= javascript_include_tag :defaults %>
+    <%= csrf_meta_tag %>
+    <%= yield(:head) %>
+  </head>
+  <body>
+    <div id="container">
+      <% flash.each do |name, msg| %>
+        <%= content_tag :div, msg, :id => "flash_#{name}" %>
+      <% end %>
+      <%= content_tag :h1, yield(:title) if show_title? %>
+      <%= yield %>
+    </div>
+  </body>
+</html>

episode-251/store/app/views/products/_form.html.erb

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+<%= form_for @product do |f| %>
+  <%= f.error_messages %>
+  <p>
+    <%= f.label :name %><br />
+    <%= f.text_field :name %>
+  </p>
+  <p>
+    <%= f.label :price %><br />
+    <%= f.text_field :price %>
+  </p>
+  <p>
+    <%= f.label :released_at %><br />
+    <%= f.datetime_select :released_at %>
+  </p>
+  <p><%= f.submit %></p>
+<% end %>

episode-251/store/app/views/products/edit.html.erb

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+<% title "Edit Product" %>
+
+<%= render 'form' %>
+
+<p>
+  <%= link_to "Show", @product %> |
+  <%= link_to "View All", products_path %>
+</p>

episode-251/store/app/views/products/index.html.erb

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+<% title "Products" %>
+
+<%= form_for @search do |f| %>
+  <p>
+    <%= f.label :name_contains %>
+    <%= f.text_field :name_contains %>
+  </p>
+  <p>
+    <%= f.label :price_gte, "Price ranges from" %>
+    <%= f.text_field :price_gte, :size => 8 %>
+    <%= f.label :price_lte, "to" %>
+    <%= f.text_field :price_lte, :size => 8 %>
+  </p>
+  <p class="button"><%= f.submit "Search" %></p>
+<% end %>
+
+<p>
+  Sort by:
+  <%= sort_link @search, :name %> |
+  <%= sort_link @search, :price %> |
+  <%= sort_link @search, :released_at %>
+</p>
+
+<% for product in @products %>
+  <div class="product">
+    <h2><%= link_to product.name, product %></h2>
+    <%= number_to_currency(product.price) %> |
+    Released: <%= product.released_at.strftime("%B %e, %Y") %>
+  </div>
+<% end %>
+
+<p><%= link_to "New Product", new_product_path %></p>

episode-251/store/app/views/products/new.html.erb

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

episode-251/store/app/views/products/show.html.erb

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+<% title "Product" %>
+
+<p>
+  <strong>Name:</strong>
+  <%= @product.name %>
+</p>
+<p>
+  <strong>Price:</strong>
+  <%= @product.price %>
+</p>
+<p>
+  <strong>Released At:</strong>
+  <%= @product.released_at %>
+</p>
+
+<p>
+  <%= link_to "Edit", edit_product_path(@product) %> |
+  <%= link_to "Destroy", @product, :confirm => 'Are you sure?', :method => :delete %> |
+  <%= link_to "View All", products_path %>
+</p>

episode-251/store/config.ru

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+# This file is used by Rack-based servers to start the application.
+
+require ::File.expand_path('../config/environment',  __FILE__)
+run Store::Application