RailsConf 2007 - Day 2

Daniel Wanja — Fri, 18 May 2007 16:35:00 +0000

Note: Check out the RailsConf Wiki and the presentation page

Chad Fowler is starting the keynote introduction. 1600 developers are at the keynote. He makes a passionate speech about how Rails is changing how we think about software and how Rails impacted the industry. An now Rich Kilmer introduces the person that introduced him to Textmate: DHH.

A peek at Rails 2.0

Celebrating what we have

> 1 million downloads
Hundreds of plugins
~10k people on rubyonrails-talk
He asks who is getting paid in one form or another using Rails and a large part the participants raise their hands. ( Books: many Rails books in many languages. Surpassed PHP, Perl and Python (source O’Reilly Radar).
http://workingwithrails.com/ indicates over 100 countries where people do Rails.
IDE: CodeGear, Textmate, NetBeans, JetBrains, Aptana

Rails 2.0

It’s not gonna change everything you know, it’s gonna be humble.
No new ‘great’ idea.
The experiment worked! (RESTFul resource)
The world of resources is a better, greener place.
Rails 2.0 will focus more on the REST convention
Routes

map.namespace(:admin) do |admin
  admin.resources :products,
    :collection => {:inventory => :get},
    :member => {:duplicte => :post},
    :has_many => [:tags, :images, :variants],
    :has_one => :seller
end

David now demos the new scaffolding that use the resource approach of working with things.

./script/generate scaffold persone name:string create_at:time

* He adds new format format.csv to support exporting as comma separated text. You can easily connect to this services:

require 'active_resource'
class Person < ActiveResource::Base
  self.site = "http://localhost:3000"
end
p = Person.find 1

Beyond CRUD you can custom methods, Person.find :all, :params => {:name => ‘d’}
This all works today.
Action Web Service is no longer service with Rails 2.0. ActiveResource is.
Friends and allies: Ajax, REST, Atom, OpenID

9 other things I like about rails 2:

1) Breakpoints are back (ruby_debug)

2) HTTP Performance

<!-- :cache => true
     gzips all javascript and stylesheet in one file 
     i.e. prototype, css get zipped down to 35K from 200k
-->
<%= javascript_include_tag :all, :cache => true %>  
<%= stylesheet_link_tag :all, :cache => true %>

3) Query cache. DHH loves free performance

4) action.mime_type.renderer

people/index.html.erb
people/index.xml.builder
people/index.rss.erb
people/index.atom.builder
def index
    respond_to do |format|
        format.html
        format.xml
        format.rss
        format.atom
    end
end

5) config/initializers. One file per configuration in initializers folder

6) Sexy migrations (just nicer)

create_table :people do |t|
  t.integer :account_id
  t.string :first_name, :last_name
end

7) HTTP Authentication. authenticate_or_request_with_http_basic

8) The MIT assumption. ./script/generate plugin now generates a default MIT license file.

9) Spring cleaning. Deprecated features of 1.2 will be removed. In-place editor will be moved to plugins.

That’s pretty much it. Thank you.

Building Community Focused Apps with Rails by Dan Benjamin

Rails is the ideal platform for Web 2.0. Fast prototyping and proof of concept. Prototype becomes the product. Conducive to collaboration with developers and designers. Dan is going to talk about Cork’d. Currently 20000 users.

Make a Plan.

Treat your application like a product and your idea like a business. Just because it’s a good idea doesn’t mean it’s gonna be automatically successful.
Stay Agile. Resist big infrastructure.
Build the Right Team. Keep it light.
Determine Ownership.
Have a Revenue Stream (ads don’t count)
Focus on Simplicity. Don’t build features just because you think they are cool.
Don’t Release a Public Beta. They had two private betas. They learned from a handful set of people rather than from a large group.
Know Your Audience. Be your Audience

Build the App.

Think Like a Designer.
Consider the Fold.
Avoid Big Migrations. User entered data can be challenging.
Collaborate.
The Rails Layouts Makes Designers Happy.
Common Rails Collaboration Tools. Subversion, Capistrano, Campfire, Basecamp, Lighthouse.
Don’t Repeat Yourself: Use Plugins. acts_as_authenticated, attachment_fu, acts_as_taggable, exception_notification, open_id_authentication, ymlr4r geocode
Take “Code Vacations”

Get Noticed

“It’s Google’s World, We Just Live in It.”
Use Smart URLs. /wine/view/5748, /authors/danbenjamn
Leverage Markup. Google reads metatags.

Recruit Members

Make It Obvious and Easy to Signup
Ask Only for What’s Truly Necessary
Ask for Everything but Require (Almost) Nothing
Limit Non-Members

Keep Them Coming Back for More

Make Frequent Improvements
Respond Positively to Your Members
Create A Developer Network
Share Your API
Find Good Partners
“If You Do Things Right, People Won’t Know You’ve Done Anything At All.”
Just Ship It

How We Used Apollo and Rails to (start to) Build an Agile Project Management App by Christopher Haupt and Chris Balley

They are part of Adobe’s Consumer Hosted Applications and Online Services group. They use whatever technology is right for the job, Flex, Rails and dozens of other technologies. They use Scrum and are geographically dispersed teams, in Germany, India, US.

Why Did We Choose Apollo and Rails?

Learning Exercise
Offline Support
Maturing Tools
Leverage our Rails Experience
Cross Platform
Installers

Why not AJAX?

Offline and Partially Connected
File System Access
Drag and Drop with Native OS

Now they are demoing Maptacular, an Apollo applications.

Combining Apollo and Rails: Communication

Flash Side
- AMF
- SOAP
- REST <== they used that
HTML Side
- AJAX techniques
Hybrid
- Ue DOM bridge to use the one you are comfortable with.

Combining Apollo and Rails: Quirks

Flex’isms
RESET can be a pain
- Use _method hacks for PUT, DELETE, HEAD
- Pass a body on everything other than GET
Some HTTP headers can’t be used, or problematic on a GET
HTTP Status codes not accessible
- Use URLoader to get HTTP Status Codes
dasherize-is-unhealthy-to-your-actionscript-code
Migrating to newer Apollo Builds
- ApolloApplication .vs. Application (for transparency)

Now they move on to Code Snippets. The sample code can be found on the Apollo Labs.

Online/Offline (Event.NETWORK_CHANGE). Notifies if network change but doesn’t tell if network is up or not. Solution: use URLoader to ping the network (they ping google.com)
Video Capture, File IO, Doing your own Chrome

Chris now demonstrate some community create applications.

"RailsConf 2007 - Day 2" by Dan Benjamin

Sat, 19 May 2007 13:38:31 +0000

Nice transcription job!

OnRails.org: RailsConf 2007 - Day 2

RailsConf 2007 - Day 2

A peek at Rails 2.0

Building Community Focused Apps with Rails by Dan Benjamin

How We Used Apollo and Rails to (start to) Build an Agile Project Management App by Christopher Haupt and Chris Balley

"RailsConf 2007 - Day 2" by Dan Benjamin