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Code for Startup MVP (Ruby on Rails) Session 1

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Henry S

This document provides an agenda and overview for a workshop on learning to code for startup MVPs using Ruby on Rails. The agenda covers reviewing a previous session, learning Ruby basics like syntax and semantics through practice, and introducing Rails models using ORM and SQL. It also provides instructions for setting up development environments on Windows, Mac, and Linux systems, installing Git for version control, and an overview of concepts covered in the previous session like the web architecture, Git/GitHub, Rails and Ruby, and deploying to Heroku.

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Learning to Code for Startup MVP Presented by Henry Shi
Agenda ¨C Wednesday November 7 1. Review of Last Session 2. Ruby Basics o Syntax and semantics o Practice makes perfect 1. Rails Models (but no Bottles) o ORM and SQL introduction o Migrations o Making the User model o Signup/Signin/Signout
Prework ¨C Setup ? Windows (not recommended if possible): o http://railsinstaller.org/ o Use Sublime Text for your text editor ? OSX: o http://railsinstaller.org/ o This includes osx-gcc-installer (200mb) ? Linux: o http://blog.sudobits.com/2012/05/02/how-to-install- ruby-on-rails-in-ubuntu-12-04-lts/
Prework - Git Install git if not already included: http://www.git-scm.com/book/en/Getting- Started-Installing-Git Configure Git: git config --global user.name "Your Name¡° git config --global user.email your.email@example.com
Review of Last Session 1. The Web and How it Works 2. Git/Github 3. Rails and Ruby 4. Heroku
The Web - Overview
GIT/GITHUB ? What is GIT? ? Distributed Version Control System (DVCS) ? Why should I care? o Never lose data or accidentally overwrite, delete files o Collaborate with peers anywhere and stay in sync automatically (no more _v1, _v2, _final, _final_final¡­) o Compare and track changes over time, and easily revert changes o Deploy code to real web
Rails ? Ruby on Rails is an open-source web framework that¡¯s optimized for programmer happiness and sustainable productivity. ? It lets you write beautiful code by favoring convention over configuration. ? 80/20 Rule =>great for Startup MVP
Heroku What is Heroku? ?a hosted platform built specifically for deploying Rails and other web applications in 1 command ?Best thing since sliced bread
Ruby ¨C Programmer¡¯s Best Friend ? Ruby is a dynamic, open source programming language with a focus on simplicity and productivity. It has an elegant syntax that is natural to read and easy to write. ? We will only cover the necessary syntax needed to create a rails app ? Thankfully, its not a lot ?
Interactive Ruby Shell ? For the following slides, you should follow along with the Interactive Ruby Shell (irb) ? Open a terminal, type irb and press enter
Ruby - Strings ? Characters (letters, digits, punctuation) surrounded by quotes food = "chunky bacon" puts "I'm hungry for, #{food}!" >> "I'm hungry for, chunky bacon!" ? Can perform operations on strings, concatenation, length, empty, etc ¡°Hello¡± + ¡°World¡± >> ¡°Hello World" ¡°Henry¡±.empty? >> false
Ruby - Numbers ? Self Explanatory 123.class (123.0).class >> Fixnum >> Float ? Can add different types of numbers directly
Ruby - Symbols ? Characters (letters, digits, punctuation) preceded by colon (:) food = :hello :asf3fasdf.class >> Symbol ? Lightweight strings ? immutable
Ruby - Array ? List surrounded by square brace and separated by commas, zero indexed a = [1, 2, 3] b = ('a'..'e').to_a # ["a", "b", "c", "d", "e"] c = %w[foo bar baz quux] # ["foo", "bar", "baz", "quux"] ? Can perform operations on arrays, add, remove, reverse etc
ERROR: undefined OFFENDING COMMAND: f¡®~ STACK:

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Code for Startup MVP (Ruby on Rails) Session 1

  • 1. Learning to Code for Startup MVP Presented by Henry Shi
  • 2. Agenda ¨C Wednesday November 7 1. Review of Last Session 2. Ruby Basics o Syntax and semantics o Practice makes perfect 1. Rails Models (but no Bottles) o ORM and SQL introduction o Migrations o Making the User model o Signup/Signin/Signout
  • 3. Prework ¨C Setup ? Windows (not recommended if possible): o http://railsinstaller.org/ o Use Sublime Text for your text editor ? OSX: o http://railsinstaller.org/ o This includes osx-gcc-installer (200mb) ? Linux: o http://blog.sudobits.com/2012/05/02/how-to-install- ruby-on-rails-in-ubuntu-12-04-lts/
  • 4. Prework - Git Install git if not already included: http://www.git-scm.com/book/en/Getting- Started-Installing-Git Configure Git: git config --global user.name "Your Name¡° git config --global user.email your.email@example.com
  • 5. Review of Last Session 1. The Web and How it Works 2. Git/Github 3. Rails and Ruby 4. Heroku
  • 6. The Web - Overview
  • 7. GIT/GITHUB ? What is GIT? ? Distributed Version Control System (DVCS) ? Why should I care? o Never lose data or accidentally overwrite, delete files o Collaborate with peers anywhere and stay in sync automatically (no more _v1, _v2, _final, _final_final¡­) o Compare and track changes over time, and easily revert changes o Deploy code to real web
  • 8. Rails ? Ruby on Rails is an open-source web framework that¡¯s optimized for programmer happiness and sustainable productivity. ? It lets you write beautiful code by favoring convention over configuration. ? 80/20 Rule =>great for Startup MVP
  • 9. Heroku What is Heroku? ?a hosted platform built specifically for deploying Rails and other web applications in 1 command ?Best thing since sliced bread
  • 10. Ruby ¨C Programmer¡¯s Best Friend ? Ruby is a dynamic, open source programming language with a focus on simplicity and productivity. It has an elegant syntax that is natural to read and easy to write. ? We will only cover the necessary syntax needed to create a rails app ? Thankfully, its not a lot ?
  • 11. Interactive Ruby Shell ? For the following slides, you should follow along with the Interactive Ruby Shell (irb) ? Open a terminal, type irb and press enter
  • 12. Ruby - Strings ? Characters (letters, digits, punctuation) surrounded by quotes food = "chunky bacon" puts "I'm hungry for, #{food}!" >> "I'm hungry for, chunky bacon!" ? Can perform operations on strings, concatenation, length, empty, etc ¡°Hello¡± + ¡°World¡± >> ¡°Hello World" ¡°Henry¡±.empty? >> false
  • 13. Ruby - Numbers ? Self Explanatory 123.class (123.0).class >> Fixnum >> Float ? Can add different types of numbers directly
  • 14. Ruby - Symbols ? Characters (letters, digits, punctuation) preceded by colon (:) food = :hello :asf3fasdf.class >> Symbol ? Lightweight strings ? immutable
  • 15. Ruby - Array ? List surrounded by square brace and separated by commas, zero indexed a = [1, 2, 3] b = ('a'..'e').to_a # ["a", "b", "c", "d", "e"] c = %w[foo bar baz quux] # ["foo", "bar", "baz", "quux"] ? Can perform operations on arrays, add, remove, reverse etc