Padrino is a web framework based on Sinatra that provides additional helper methods and a Rails-like directory structure. Sequel is used for database access and provides an Arel-style query interface. The presentation demonstrates building a basic to-do list application from scratch using Padrino and Sequel, and then enhancing it with Padrino's admin panel generator. It also reviews code for archiving projects to offline storage with MySQL full-text search of archive contents and Basic Auth security. More information can be found on the Padrino, Sinatra, and Sequel websites.

1. Padrino + Sequel
for lightweight web apps
Angel Pizarro
angel@upenn.edu

6. Sequel for DB access

7. Sequel for DB access

8. Arel-style query
(Actually was always like this)

9. Arel-style query
(Actually was always like this)

10. “dataset” == Sequel::Model

14. Sequel is a BIG topic.
See http://sequel.rubyforge.org/documentation.html
for more information

15. Padrino: Sinatra base
Origin was the “sinatra-more” gem
All of Sinatra with some rails-style helper
methods and dir structure
Sorta like Merb without the ridiculous gem &
version dependencies
Nice set of generators for models,
controllers, etc.

17. Motivating Example #1
A to-do list of items
CRUD like functionality from scratch

18. LIVE CODE !!

19. Motivating Example #2
A to-do list of items
CRUD like functionality using the
Padrino admin panel

20. LIVE CODE !!

21. Motivating Example #3
To make space on the SAN, we need to archive
projects to offline storage
Location of the offline archive must be tracked
Archive contents (e.g. file names) must be
searchable
Use MySQL full-text search)
A project’s meta-data must be stored &
searchable
Meta-data may contain sensitive details, site
must be minimally secured (Basic Auth)

22. CODE REVIEW !!
(too lazy to live code anymore :P)

23. Thanks!
More Information:
http://www.padrinorb.com
http://www.sinatrarb.com
http://sequel.rubyforge.org
Rate my talk: http://speakerrate.com/talks/4272-padrino-sequel-for-lightweight-web-apps