Read

• Ruby on Rails Tutorial: Learn Web Development with Rails
• Eloquent Ruby [Review]({% post_url 2013-08-27-book-review:-eloquent-ruby %})
• Metaprogramming Ruby
• The RSpec Book [Review]({% post_url 2013-09-14-book-review:-the-rspec-book %})
• Practical Object-Oriented Design in Ruby
• Objects on Rails
• David …

Objects

• objects are collections of instance variables and a link to their class

Classes

• Classes are instances of Class which is a subclass of Module
• CamelCased

Instance Variables

• Objects of the same class can have different sets of instance variables as they only exist upon assignment

Method calls

• The object …

Create a controller without tests.

rails generate controller {controller name} {views/methods} --no-test-framework

Create integration test

rails generate integration_test {test_name}

Roll back a migration

rake db:rollback

Rspec test for Mass Assign Vulnerbility (or attribute not being accessible):

describe …

Set up a rails app with heroku, zerigo DNS, and bitbucket in one pomodoro:

rails new {app_name} --skip-test-unit
cd {app_name}
git init
git add .
git commit -m "generated skeleton"
vim Gemfile

Gemfile changes

< gem 'sqlite3'
---
> group :development do
9a10,11
>   gem 'sqlite3'
> end …

Quickest way to set up a new project. Use snake_case on project name.

bundle gem my_gem_name
cd ./my_gem_name/
git commit -m "empty project"
rspec --init

Jekyll is a blog-aware static site generator. The operative words in that sentence being static site, there is no php, no database, running on this blog. There are few advantages to this setup over the traditional alternatives such as wordpress:

1. Speed of service: no code execution means the limiting factor is how fast …

Below are a list of Gems have found to be useful as I was learning rails:

Testing

gem 'factory_girl_rails'

FactoryGirl automates the process of model creation for the purpose of testing.

gem 'launchy'

Launch allows you to open a webpage in testing, good for debugging tests

gem 'annotate' …

Ruby rails install

sudo apt-get install ruby rubygems

Install rails:

gem install rails

Long wait and then this result:

Fetching: i18n-0.6.1.gem (100%)
ERROR:  While executing gem ... (Errno::EACCES)
    Permission denied - /var/lib/gems

Installing RVM per Stackoverflow answer .:

curl -L https://get.rvm.io | bash …