ror framework

7/31/2019 RoR Framework

1/10

Sanjay KaushikMCA,HMR ITM, Delhi18 October 2012


2/10

a modern programming language available for Windows, Mac OS, Unix/Linux, Java (JRuby),

.NET (IronRuby), and Android (Ruboto) flexible and easy to read and write:

def is_lower_48?(address)address.country == "United States" and

not ["AK", "HI"].include?(address.state)end

designed to maximize programmer happiness


3/10

a framework for building web applications in Ruby a set of strong ideological opinions about how web

applications should be structured a particularly good tool for building prototypes rapidly

(which doesn't mean it's only good for that) a thriving, productive, fractious community of free software

developers a constantly growing and changing software ecosystem

with libraries to do almost anything


4/10

Lots of web applications you've heard of:Basecamp, Twitter, Hulu, Groupon, ...

Blacklight (projectblacklight.org),a Solr-based discovery interface

Umlaut (wiki.code4lib.org/index.php/Umlaut),a link resolver enhancer

Library Lab projects developed at the Berkman Center(like the Widener carrel reservation app)

The HCL annotated bibliography application I wrote


5/10

Web pages, with instructions in them to do things

Today's date is#DateFormat(today, "yyyy-mm-dd")#

It's a lot like writing a regular website, only every so oftenyou tell the server to do something

Usually you eventually reach an unmaintainable mess


6/10

Partition your program into three basic responsibilities:o The modelis your representation of data (bibliographic

records, search queries, shopping carts, ...)o The viewis the web pages that you show to the user, and

all the behavior they containo The controllerdirects traffic, receiving requests from the

user, deciding what actions to take, and mediatingbetween model and view

Every major web programming platform provides a way foryou to follow this paradigm

Rails forces you to from the very beginning


7/10


8/10

RSpec fortest-driven development Cucumber forbehavior-driven development

Scenario: Request to create a new collectionGiven I open the topic at the home pageWhen I follow "create a new collection"

Then I should be on the collection creation form

jQuery is now built in (as of Rails 3.1)


9/10

Ruby, in and of itself, is a friendly programming languageand a good one for people who are new to programming

Rails is a wonderful system for building web applications,ifyou can program or want to learn programming

Ruby on Rails has a steeper learning curve than page-centered systems like PHP or ColdFusion

If you need to build an interactive web thing and don't reallylike the idea of programming, try Drupal instead


10/10

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