Your SlideShare is downloading. ×
0
Introducing Ruby/MVC/RoR
Introducing Ruby/MVC/RoR
Introducing Ruby/MVC/RoR
Introducing Ruby/MVC/RoR
Introducing Ruby/MVC/RoR
Introducing Ruby/MVC/RoR
Introducing Ruby/MVC/RoR
Introducing Ruby/MVC/RoR
Introducing Ruby/MVC/RoR
Introducing Ruby/MVC/RoR
Introducing Ruby/MVC/RoR
Introducing Ruby/MVC/RoR
Introducing Ruby/MVC/RoR
Introducing Ruby/MVC/RoR
Introducing Ruby/MVC/RoR
Introducing Ruby/MVC/RoR
Introducing Ruby/MVC/RoR
Introducing Ruby/MVC/RoR
Introducing Ruby/MVC/RoR
Introducing Ruby/MVC/RoR
Introducing Ruby/MVC/RoR
Introducing Ruby/MVC/RoR
Introducing Ruby/MVC/RoR
Introducing Ruby/MVC/RoR
Upcoming SlideShare
Loading in...5
×

Thanks for flagging this SlideShare!

Oops! An error has occurred.

×
Saving this for later? Get the SlideShare app to save on your phone or tablet. Read anywhere, anytime – even offline.
Text the download link to your phone
Standard text messaging rates apply

Introducing Ruby/MVC/RoR

1,736

Published on

An introduction session of Ruby, Ruby on Rails, MVC architecture...

An introduction session of Ruby, Ruby on Rails, MVC architecture...

Published in: Technology
1 Comment
2 Likes
Statistics
Notes
  • Hi Sumanth,can you please share your contact number at a.shalini.rao@gmail.com or call on 9845377421
       Reply 
    Are you sure you want to  Yes  No
    Your message goes here
No Downloads
Views
Total Views
1,736
On Slideshare
0
From Embeds
0
Number of Embeds
1
Actions
Shares
0
Downloads
0
Comments
1
Likes
2
Embeds 0
No embeds

Report content
Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
No notes for slide

Transcript

  1. Introducing Ruby MVC Framework Ruby on Rails
  2. TAG Cloud  Java Ruby PHP Object oriented ActiveRecord  python Ruby on Rails Rails J2EE Hibernate  Framework MVC RadRails Aptana NetBeans  Struts IDE Architecture ActionPack gems  Webserver Testing plugins OpenSource Helpers  webrick Methods
  3. Do we need??? Another Language... Another Framework... A new design pattern... Wide range of new tools... ... ... ...
  4. So let's dive in...
  5. Ruby is...  An interpreted language  - a.k.a dynamic, scripting  - e.g., perl  Modules allow addition of behaviors to a class  Object Oriented  Single inheritance  High level  - Good support for system calls, regex and CGI  Relies heavily on convention for syntax
  6. Ruby is...  All classes derived from Object including Class (like Java) but there are no primitives (not like Java at all)  Ruby uses single-inheritance  Mixins give you the power of multiple inheritance without the headaches  Modules allow addition of behaviors to a class  Things like ‘=‘ and ‘+’ that you might think are operators are actually methods (like Smalltalk)  Variables are not typed  Automatic memory allocation and garbage collection
  7. Traditional Applications Browser directly accesses page. - Do not offer centralized control • - No separation of content/style - Difficult to maintain
  8. MVC Applications Browser accesses a “controller” - Centralizes control - Clean separation of content/style - More involved to produce - Easier to maintain and expand
  9. MVC MVC is an Architectural Design Pattern Separates a web application into three different modules. Model | View | Controller
  10. MVC Advantages Separation of interests. Model centralizes business logic. View centralizes display logic. Controller centralizes application flow. Clean separation of content/style. Improved decoupling. Easier testing. Allow multiple people to work on different parts.
  11. RAILS & MVC Rails in an MVC framework ”…Rails is such a framework that tries to remove the complexity and drudgery of MVC, while still allowing you to realize all the benefits.” - DHH (David Heinemeier Hansson)
  12. Model - ActiveRecord ActiveRecord is a design pattern. (Martin Fowler) Object wraps a row in the database. Encapsulates data access. Contains business logic. Handles relationships. Handles validation.
  13. View - ActionView Renders the view. Both .rhtml and .rxml files. Provides master layouts. Uses ERb (embedded ruby) for templating and control.
  14. Controller – ActionController Controls application flow. Controls which view to use. Makes data available as instance variables @var Contains several actions/defs Controls rendering and redirection.
  15. What it looks like?
  16. Walk through...
  17. Folder Structure
  18. RAILS in 10 points  Don’t Repeat Yourself  Convention Over Configuration  Model View Controller  Agile Development  Configuring DB  ActiveRecord (Built-in ORM support)  CRUD – operations  Generators  Migrations  Plugins
  19. Worth diving. Isn't it?
  20. Who's using...
  21. Applications...
  22. References... http://wiki.rubyonrails.org http://rubyonrails.org http://www.workingwithrails.com http://www.37signals.com ... ...
  23. Thanks! Sumanth Krishna. A www.sumanthkrishna.com tosumanthkrishna@gmail.com

×