ruby on rails development company in india
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Ruby on Rails is a web application framework written in Ruby that utilizes the MVC architecture for organizing programming. It offers features like meta programming, active record, and scaffolding, which enhance productivity and streamline development. The framework encourages convention over configuration, significantly reducing the amount of setup code required compared to other frameworks.
ruby on rails development company in india
- 2. What is Ruby on Rails ? ● Ruby on Rails is a web application framework written in Ruby, a dynamic programming language. ● Ruby on Rails uses the MVC (Model-View-Controller) architecture pattern to organize application programming. ● Ruby on Rails is a web application framework written in Ruby, a dynamic programming language. ● Ruby on Rails uses the MVC (Model-View-Controller) architecture pattern to organize application programming.
- 3. Ruby on Rails Features Rails is packed with features that make you more productive, with many of the following features building on one other. ● Meta programming: ● Active Record ● Convention over configuration ● Scaffolding ● Built-in testing ● Three environments Rails is packed with features that make you more productive, with many of the following features building on one other. ● Meta programming: ● Active Record ● Convention over configuration ● Scaffolding ● Built-in testing ● Three environments
- 4. Sample Ruby Code # Output “Name” puts “Bhaskar” # Output “Name” in upprecase puts “Bhaskar”.upcase # Output “Name” 10 times 10.times do puts “Bhaskar”.upcase end
- 5. Sample Ruby Code: Class Class Employee: defining three attributes for a Employee; name, age, position class Employee # must be capitalized attr_accessor :name, :age, :position # The initialize method is the constructor def initialize(name, age, position) @name = name @age = type @position = color end
- 6. New Employee Creating an instance of the Employee class: a = Employee.new(“JAY", “23", “Test Engineer") b = Employee.new(“SAM", “24", “Test Engineer")
- 7. Meth od To be able to describe employees, we add a method to the employee class: def describe @name + " is of " + @age + " years" +" working as " + @position+ ".n" end
- 8. Calling Method To get the description of Employee, we can call Employee with the describe method attached : emp= a.describe puts emp Or: puts a.describe
- 9. Rails implements the model- viewcontroller (MVC) architecture.
- 10. Model View Contoller (MVC) ● The MVC design pattern separates the component parts of an application ● MVC pattern allows rapid change and evolution of the user interface and controller separate from the data model
- 11. Mod el Contains the data of the application ● Transient ● Stored (eg Database) Enforces "business" rules of the application ● Attributes ● Work flow
- 12. Vie w ● Provides the user interface ● Dynamic content rendered through templates Three major types ● Ruby code in erb (embedded ruby) templates ● xml.builder templates ● rjs templates (for javascript, and thus ajax)
- 13. Controll er ● Perform the bulk of the heavy lifting ● Handles web requests ● Maintains session state ● Performs caching ● Manages helper modules
- 14. Creating a Simple Application Requirements ● Ruby ● RubyGems ● Rails ● SQlite, PostGres or MySQL
- 15. Creating a Simple Application Requirements ● Ruby ● RubyGems ● Rails ● SQlite, PostGres or MySQL
- 16. Creating a Simple Application Convention over configuration ● Most Web development frameworks for .NET or Java forces to write pages of configuration code, instead Rails doesn't need much configuration.The total configuration code can be reduced by a factor of five or more over similar Java frameworks just by following common conventions. ● Naming your data model class with the same name as the corresponding database table ● ‘id’ as the primary key name.