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Ruby Programming & Ruby On Rails

Ruby is a high level Interpreted, Object Oriented, rapid development language deployed in many scenarios in the modern world.

This Ruby Programming & Ruby on Rails course is designed to give delegates the knowledge to develop and maintain Ruby applications and Rails based projects.

Exercises and examples are used throughout the course to give practical hands-on experience with the techniques covered.

The delegate will learn and acquire skills as follows:

  • Declare variables and initialise them
  • Construct expressions with arithmetic, logical and relational operators
  • Use iterative type statements
  • Use conditional statements
  • Read/write files
  • Manipulate text using regular expression
  • Use and create Ruby Objects
  • Use built-in library functions
  • Work with REST and describe the purpose of REST and the  Rails MVC architecture
  • Use RAILS and describe the purpose of Rails Routes
  • Create a project using Ruby and Rails
  • Create and customise a Rails Application using scaffold and the SQLite3 database

Who will the Course Benefit?

Developers who are required to write, maintain and test Ruby applications and projects based on Ruby on Rails.

Learning Objectives

Course Objectives

This course aims to provide the delegate with the knowledge to be able to produce simple, object oriented Ruby applications, and develop and maintain Rails  based projects that exploit all core elements of the language to solve business problems.

Pre-Requisites

Requirements

Familiarisation with programming concepts is useful. This knowledge can be obtained by attendance on the Introduction to Programming course.

Follow-On Courses

  • Apache Web Server
  • Introduction to MySQL
  • Python Programming 1
  • Perl Programming
  • PHP Programming
Notes:
  • Course technical content is subject to change without notice.
  • Course content is structured as sessions, this does not strictly map to course timings. Concepts, content and practicals often span sessions.

Course Content

Course Contents - DAY 1

Course Introduction

  • Administration and Course Materials
  • Course Structure and Agenda
  • Delegate and Trainer Introductions

Session 1: INTRODUCTION TO RUBY

  • What is Ruby
  • What is it used for
  • Installing Ruby?
  • Ruby Basics - objects, regular expressions, arrays, hashes, Object Orientation

Session 2: RUBY LANGUAGE ELEMENTS

  • Variables and constants
  • Operators
  • Assignments
  • Integer, float and string formats
  • Single and double quotes
  • Here documents
  • Labs

Session 3: CONTROL STRUCTURES

  • Blocks and if statement
  • Boolean and range operators
  • Conditionals - if, unless, case
  • Loops - while, for in, until
  • break, next, retry and redo
  • Labs

Session 4: CLASSES AND OBJECTS

  • Objects, classes and methods
  • Constructors and attributes
  • Instance and class variables
  • Local and global variables
  • Class and object methods
  • Including external files - load and require
  • Labs

Course Contents - DAY 2

Session 5: INPUT AND OUTPUT IN RUBY

  • Opening and closing files
  • Reading from and writing to files
  • Labs

Session 6: ARRAYS AND HASHES IN RUBY

  • Arrays and hashes
  • Building an array
  • The %w shortcut
  • Nesting arrays
  • Hash keys
  • Iterators
  • Labs

Session 7: OBJECT ORIENTATION

  • Inheritance
  • Base classes and subclasses
  • What's inherited
  • Overriding
  • Abstract classes
  • Polymorphism
  • Multiple Inheritances
  • Class structure
  • Visibility
  • Labs

Session 8: CLASSES AND OBJECT SCOPING

  • Public, private and protected visibility
  • Singletons and defs
  • Inheritance mixins
  • Destructors and garbage collection
  • Namespaces and modules
  • Hooks
  • Freezing objects
  • Labs

Course Contents - DAY 3

Session 9: OBJECT ORIENTATION TECHNIQUES

  • Clusters of classes
  • Programming and method standards
  • Formal Methods
  • Unified Modelling Language (UML)
  • Views

Session 10: STRINGS AND REGULAR EXPRESSIONS

  • Meta Characters
  • Anchors, literals, character groups and counts
  • Matching in Ruby
  • Modifiers i, o, x and m
  • Pattern matching variables
  • Labs

Session 11: SPECIAL VARIABLES AND PSEUDO-VARIABLES

  • ARGV and $0
  • Special variables
  • Environment variables
  • Pseudo-variables
  • Reserved words in Ruby
  • Labs

Session 12: EXCEPTIONS

  • Begin and end
  • Raise and rescue
  • Throw and catch

Course Contents - DAY 4

Session 13: REST

  • What is REST
  • RESTful architecture
  • A simple REST client

Session 14: INTRODUCTION TO RUBY ON RAILS

  • Install Ruby on Rails on an operating system
  • The Model-View-Controller approach
  • Rails Conventions
  • Rails project structure
  • Using RubyGems with Rails

Session 15: ROUTING

  • What is a Route
  • Define routes that recognize incoming URLs
  • Use named route methods to generate URLs based on the routing scheme
  • Apply and understand the RESTful routing conventions
  • Design apps to take advantage of the REST conventions in Rails

Session 16: MODELS

  • What is a Model
  • Using  ActiveRecord
  • Validations
  • Associations
  • Migrations

Course Contents - DAY 5

Session 17: CONTROLLERS

  • What is a Controller
  • Creating controllers
  • Using  ActionController
  • Writing Actions
  • Filters

Session 18: VIEWS

  • What is a View
  • Exploring ActionView
  • Writing Views for actions
  • Partials
  • Forms

Session 19: CREATING A RAILS PROJECT

  • Creating the project
  • Project Directory structure
  • Using the Rails web server
  • Creating the initial controller
  • Modify the initial index.html file
  • Setting the Route
  • Creating a resource
  • Viewing routes with rake

Session 20: RAILS SCAFFOLDING

  • What is Scaffolding
  • Creating a new project
  • Generating the Rail Scaffold
  • Customising the application

 

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