Building Application with Ruby On Rails Framework
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The document provides an overview of a Ruby on Rails course offered by Edureka, highlighting key topics such as the framework's features, MVC architecture, and application development. It emphasizes the benefits of learning Ruby, including ease of use and job market potential, and outlines the course structure, including live sessions and projects. Additionally, it details the directory layout for Rails applications and the steps to create and run a Rails app.
Building Application with Ruby On Rails Framework
- 1. www.edureka.co/ruby-on-rails View Ruby On Rails course details at www.edureka.co/ruby-on-rails For Queries: Post on Twitter @edurekaIN: #askEdureka Post on Facebook /edurekaIN For more details please contact us: US : 1800 275 9730 (toll free) INDIA : +91 88808 62004 Email us : [email protected] Building Application With Ruby On Rails Framework
- 2. Slide 2Slide 2Slide 2 www.edureka.co/ruby-on-rails Introduction to Ruby on Rails Framework Features of Ruby on Rails MVC Architecture Building Rails Application What will you learn today?
- 3. Slide 3Slide 3Slide 3 www.edureka.co/ruby-on-rails 9 Reasons Why You Should Learn Ruby It is easy to learn Saves time by writing more with less Create web apps quickly and with ease It is free of charge Ruby can be customized
- 4. Slide 4Slide 4Slide 4 www.edureka.co/ruby-on-rails 9 Reasons Why You Should Learn Ruby (Contd.) It is Portable Learning Ruby helps you get a job Make your own Domain Specific Language The community will help www.rubyonrails.org/community DSL
- 5. Slide 5Slide 5Slide 5 www.edureka.co/ruby-on-rails Ruby on Rails Ruby on Rails is a full-stack framework » Used to developing web applications » It is working under the Model-View-Control pattern » It is an open source framework Ruby on Rails framework is familiar for » Simplicity » Productivity » Speed of development » Reliable Solutions Ruby is an Object Oriented Programming language Ruby has simple English like syntax Using Ruby you will write less code
- 6. Slide 6Slide 6Slide 6 www.edureka.co/ruby-on-rails Examples of Application built on Ruby on Rails
- 7. Slide 7Slide 7Slide 7 www.edureka.co/ruby-on-rails Rails Golden Rule 1 : DRY DRY just means "Don't Repeat Yourself". Make sure that when you write code, you only write it one time. The DRY principle is stated as "Every piece of knowledge must have a single, unambiguous, authoritative representation within a system." Reference: https://maurits.wordpress.com
- 8. Slide 8Slide 8Slide 8 www.edureka.co/ruby-on-rails Rails Golden Rule 2 : Convention Over Configuration Convention over configuration (also known as coding by convention) is a software design paradigm which seeks to : For example, if there is a class Sale in the model, the corresponding table in the database is called "sales" by default. It is only if one deviates from this convention, such as calling the table "product sales", that one needs to write code regarding these names. Not losing flexibility Decrease number of decisions on developers Gain Simplicity
- 9. Slide 9Slide 9Slide 9 www.edureka.co/ruby-on-rails Rails MVC Architecture
- 10. Slide 10Slide 10Slide 10 www.edureka.co/ruby-on-rails Rails application can be created using the following command >rails new app_name When you create an application using the rails helper script, you can see that a new directly structure is created for your application. The directory structure will have to following directories that will be explained in the next slide. Creating a Rails Application
- 11. Slide 11Slide 11Slide 11 www.edureka.co/ruby-on-rails Directory Layout File /Folder Purpose app/ Contains the controllers, models, views, helpers, mailers and assets for your application. bin/ Contains the rails script that starts your app and can contain other scripts you use to deploy or run your application. config/ Configure your application's routes, database, and more condig.ru Rack configuration for Rack based servers used to start the application. db/ Contains your current database schema, as well as the database migrations Gemfile Gemfile.lock These files allow you to specify what gem dependencies are needed for your Rails application. These files are used by the Bundler gem. Lib/ Extended modules for you application Log/ Application log files
- 12. Slide 12Slide 12Slide 12 www.edureka.co/ruby-on-rails Directory Layout (Contd.) File /Folder Purpose public/ The only folder seen by the world as-is. Contains static files and compiled assets. Rakefile This file locates and loads tasks that can be run from the command line. Rather than changing Rakefile, you should add your own tasks by adding files to the lib/tasks directory of your application README.rdoc This is a brief instruction manual for your application. You should edit this file to tell others what your application does, how to set it up, and so on. test/ Unit tests, fixtures, and other test apparatus. tmp/ Temporary files (like cache, pid, and session files). Vendor/ A place for all third-party code. In a typical Rails application this includes vendor’s gems.
- 13. Slide 13Slide 13Slide 13 www.edureka.co/ruby-on-rails Rails application can be booted using the following command >rails server This command will fire up WEBrick, a web server distributed with Ruby. » Default environment is development » Default port is 3000 » http://127.0.0.1:3000 Running Rails Application
- 14. Slide 14Slide 14Slide 14 www.edureka.co/ruby-on-rails To see your application in action, open a browser window and navigate to http://localhost:3000 Running Rails Application (Contd.)
- 15. Slide 15Slide 15Slide 15 www.edureka.co/ruby-on-rails Creating Rails Views and Controller Create first controller >rails generate controller home Create new file and store with name index.html.erb >rails g controller home index Add the content to index.html.erb file <h1>Hello, Rails!</h1> Open the file config/routes.rb in your editor. Remove the comment “#” and change root to # root ‘home#index'
- 16. Slide 16Slide 16Slide 16 www.edureka.co/ruby-on-rails Creating Rails Views and Controller (Contd.) Launch the web server again and navigate to http://localhost:3000 in your browser.
- 17. Slide 17 www.edureka.co/angular-jsSlide 17Slide 17Slide 17 Certifications Get certified in Ruby On Rails by Edureka Edureka's Ruby On Rails course: • It covers all the fundamental concepts of OOPS and Web Applications, Ruby scripting, MVC architecture to advanced topics like Gemified plugins, Application deployments, API conventions, cloud support by Heroku, Front End, and Back End DB collaborations etc. • It will enable learners to build web applications using the powerful Rails framework and the highly dynamic, object-oriented Ruby language. Participants will also get to implement one project towards the end of the course. • Online Live Courses: 30 hours • Assignments: 25 hours • Project: 20 hours • Lifetime Access + 24 X 7 Support Go to www.edureka.co/ruby-on-rails Batch starts from 24th October (Weekend)
- 18. Thank You Questions/Queries/Feedback Recording and presentation will be made available to you within 24 hours