prag_studio_fund

Crowdfund is a Ruby program developed based on Pragmatic Studio's Ruby Programming hands-on video course, and distributed as a Ruby gem.

This program has been developed using all the strengths of Ruby including the following.

Ruby Programming Environment

• Installing Ruby on your favorite operating system (free exercise)
• Running Ruby using the interactive Ruby shell (irb) and writing Ruby program files
• Using Ruby's documentation system to get help
• Installing external Ruby libraries using RubyGems
• Troubleshooting common problems

Ruby Language Constructs

• Expressions and variables
• Numbers, string, and symbols (free video & exercise)
• Loops and conditional expressions
• Arrays and hashes (free video & exercise on hashes)
• Classes, modules, and structs

Object-Oriented Programming

• Using built-in Ruby classes
• Defining your own classes with state and behavior (free video & exercise)
• Creating unique objects
• Telling objects what to do by calling methods
• Modeling class-level inheritance relationships
• Sharing code with mixins

Object-Oriented Design Principles

• Encapsulation
• Separation of concerns
• Polymorphism
• Don't Repeat Yourself
• Tell, Don't Ask

Blocks and Iterators

• Calling built-in methods that take blocks
• Writing your own methods that yield to blocks
• Implementing custom iterators
• Effectively using blocks in your programs

Organizing Ruby Code

• Creating a Ruby project structure

• Separating source files for easier reuse and testing

• Namespacing to avoid naming clashes

• Input/Output

• Reading data from files

• Writing data to files

• Creating an interactive console prompt

• Handling command-line input

Unit Testing

• Writing and running unit tests with RSpec
• Test-driven development and the red-green-refactor cycle
• Stubbing methods to control tests
• Refactoring code, safely!

Distribution

• Conforming to RubyGems conventions
• Writing a GemSpec
• Building a RubyGem
• Publishing a RubyGem to a public server

Ruby Programming Idioms