Dreamforce 2012

1. Creating HTML5 Applications with
jQuery Mobile, Ruby and
Database.com
Developer Track
Senior Technical Consultant, Appirio & Platform Architect, CloudSpokes
@jeffdonthemic

2. Safe harbor
Safe harbor statement under the Private Securities Litigation Reform Act of 1995:
This presentation may contain forward-looking statements that involve risks, uncertainties, and assumptions. If any such uncertainties
materialize or if any of the assumptions proves incorrect, the results of salesforce.com, inc. could differ materially from the results
expressed or implied by the forward-looking statements we make. All statements other than statements of historical fact could be
deemed forward-looking, including any projections of product or service availability, subscriber growth, earnings, revenues, or other
financial items and any statements regarding strategies or plans of management for future operations, statements of belief, any
statements concerning new, planned, or upgraded services or technology developments and customer contracts or use of our services.
The risks and uncertainties referred to above include – but are not limited to – risks associated with developing and delivering new
functionality for our service, new products and services, our new business model, our past operating losses, possible fluctuations in our
operating results and rate of growth, interruptions or delays in our Web hosting, breach of our security measures, the outcome of
intellectual property and other litigation, risks associated with possible mergers and acquisitions, the immature market in which we
operate, our relatively limited operating history, our ability to expand, retain, and motivate our employees and manage our growth, new
releases of our service and successful customer deployment, our limited history reselling non-salesforce.com products, and utilization
and selling to larger enterprise customers. Further information on potential factors that could affect the financial results of
salesforce.com, inc. is included in our annual report on Form 10-Q for the most recent fiscal quarter ended July 31, 2012. This
documents and others containing important disclosures are available on the SEC Filings section of the Investor Information section of
our Web site.
Any unreleased services or features referenced in this or other presentations, press releases or public statements are not currently
available and may not be delivered on time or at all. Customers who purchase our services should make the purchase decisions based
upon features that are currently available. Salesforce.com, inc. assumes no obligation and does not intend to update these forward-
looking statements.

3. Jeff Douglas
Senior Technical Consultant, Appirio
Platform Architect, CloudSpokes
Co-Author, “Salesforce Handbook”
& “Beginning Java Google App Engine”
http://blog.jeffdouglas.com
@jeffdonthemic

4. Appirio Helps Enterprises Power Their Business with
Public Cloud Solutions
Helping Enterprises Become:
Efficient Effective Agile
Social Mobile
Technology-enabled professional services,
supported by 500 cloud experts and
a 50,000+ cloud developer community
5 years, 300 enterprises, 1.5M users moved to the cloud
4

5. What to walk away with
 Strategies for building mobile applications with the Force.com platform.
 Mechanics on how to build a jQuery mobile application with
Database.com and Ruby on Rails.
 Sample code for your mobile project.
 Best practices with Force.com mobile application with Ruby on Rails and
Database.com.
 A deep love and appreciation for the Force.com platform.

6. Agenda
 Mobile development strategies
 Salesforce Mobile SDK
 The “Mobile Chow Finder” application
 Technology stack overview
• Database.com
• Ruby on Rails
• jQuery Mobile
• Databasedotcom gem
 Demo (aka “Show me the code!”)

8. Native vs. HTML5 vs. Hybrid

9. Native applications
 Pros
• Feature rich, look & feel and performance
• Objective-C & Java
• Easy to find applications
• Easy to monetize applications
 Cons
• Limited to single platform
• Objective-C & Java
• Distribution via Apple App Store and Google Play

10. HTML5 applications
 Pros
• A "write one, run many" solution that is cross platform and cross device
• Low barrier to entry - HTML5, CSS3 & JavaScript skills
 Cons
• Not up to par with the native app experience
 “Frameworks”
• jQuery Mobile
• Sencha Touch
• jQTouch

11. Hybrid applications
 Pros
• Application framework that enables you to build natively installed applications
using HTML, CSS and JavaScript.
• Supports accelerometer, camera, compass, contacts, geolocation, sotification,
storage and more.
• PhoneGap Build – no SDKs to install! Spits out binaries for 7 mobile platforms
• Discover and monetize via App Store and Play
 Cons
• PhoneGap: Doesn‟t look native
• Titanium: Platform specific API via JavaScript for Android & iOS. No HTML or
CSS support.

12. CloudSpokes HTML5 Apps

13. Salesforce.com Mobile SDK
 Suite of open-source technologies for iOS, Android, HTML5 and hybrid
applications
 Sample applications, quick start and webinars
 Mobile components for Visualforce
 Easy to build jQuery Mobile Visualforce applications

15. Building the “Mobile Chow Finder”
 HTML5 application for service members to find the local “Chow Hall”
 Database.com
 jQuery Mobile
 Ruby on Rails
 Geolocation
 Store favorites using LocalStorage

16. jQuery Mobile - View
 Super easy! Uses web standard HTML5, CSS3, and JavaScript to easily
develop user interfaces for mobile web apps
 Framework built on top of jQuery – EVERYONE loves jQuery!
 Provides custom events to detect mobile and touch specific actions like
tap, tap-and-hold, swipe, and orientation change (i.e. rotating the device).
 We are just building web pages!!

17. Database.com - Model
 A secure, cloud database for building social and mobile enterprise apps.
 Slimmed down version of Force.com database (essentially the Setup
section)
• Only custom objects (no CRUD UI)
• Apex classes, triggers & workflow
• Identity & user management plus role and profile security
• Oauth2 & REST baked in
 Utilize your favorite Force.com tools
 Pricing based upon user licenses, records and transactions

18. Ruby on Rails - Controller
 Great for quickly building social and mobile applications
 Leverage thousands of open source packages and frameworks to build
amazing applications.
 Databasedotcom Ruby gem
• Open source ruby client for accessing REST and Chatter APIs
• Supports OAuth2
• ActiveRecord syntax
• Should be called „Forcedotcom‟ gem
 Host the application on Heroku – WINNING!

19. Let’s code this sucker up!

20. Recap – What did we just see?
 Strengths and weaknesses of mobile application development strategies.
When to use one versus the other.
 The Salesforce.com Mobile SDK embraces all three development
approaches.
 Advantages of using Database.com as a data store.
 How to quickly and easily develop HTML5 mobile applications using open
source technologies.
 Best practices for developing mobile applications.

21. Additional Resources
 Mobile Framework Comparison
 HTML5 vs Native: The Mobile App Debate
 Force.com Mobile SDK
 Getting Started with jQuery Mobile
 Sample Application Code (github)
 Databasedotcom Gem (github)

22. Jeff Douglas
Senior Technical Consultant, Appirio
Platform Architect, CloudSpokes
@jeffdonthemic