ruby on railsは、うまく動作させるまでが結構大変

ruby 2.1.0
rails 4.1
でテスト中

mysql2はバージョン0.3.21を使うべし 0.4.5は動かない。
rspecのバージョンは3.4を使うべし、これで動いた。

mysql を動かすには
mysql-develも必要

centos7への
mysql5.6のインストール・設定を書いておく

sudo yum -y localinstall http://dev.mysql.com/get/mysql57-community-release-el7-9.noarch.rpm
sudo yum remove mariadb-libs
sudo rm -rf /var/lib/mysql/
yum repolist all | grep mysql
sudo yum -y install yum-utils
sudo yum-config-manager --disable mysql57-community
sudo yum-config-manager --enable mysql56-community
sudo yum -y install mysql-community-server
sudo systemctl start mysqld
sudo systemctl enable mysqld
/usr/bin/mysqladmin -u root password 'root'
sudo yum install mysql-devel

ローカル開発環境なのでmysqlのパスワードはrootにしているが、実際は難しいのにしましょう。環境変数で設定する。



Gemfile

source 'https://rubygems.org'

ruby '2.1.0'
# Bundle edge Rails instead: gem 'rails', github: 'rails/rails'
gem 'rails', '4.1.0'

# Use mysql as the database for Active Record
gem 'mysql2', '~> 0.3.21'
# Use SCSS for stylesheets
gem 'sass-rails', '~> 4.0.3'
# Use Uglifier as compressor for JavaScript assets
gem 'uglifier', '>= 1.3.0'
# Use CoffeeScript for .js.coffee assets and views
gem 'coffee-rails', '~> 4.0.0'
# See https://github.com/sstephenson/execjs#readme for more supported runtimes
# gem 'therubyracer',  platforms: :ruby

# Use jquery as the JavaScript library
gem 'jquery-rails'
# Turbolinks makes following links in your web application faster. Read more: https://github.com/rails/turbolinks
gem 'turbolinks'
# Build JSON APIs with ease. Read more: https://github.com/rails/jbuilder
gem 'jbuilder', '~> 2.0'
# bundle exec rake doc:rails generates the API under doc/api.
gem 'sdoc', '~> 0.4.0',          group: :doc

# Spring speeds up development by keeping your application running in the background. Read more: https://github.com/rails/spring
gem 'spring',        group: :development

# Use ActiveModel has_secure_password
# gem 'bcrypt', '~> 3.1.7'

# Use unicorn as the app server
# gem 'unicorn'

# Use Capistrano for deployment
# gem 'capistrano-rails', group: :development

# Use debugger
# gem 'debugger', group: [:development, :test]

gem 'therubyracer', platforms: :ruby
gem 'bcrypt', '~> 3.1.7'
gem 'nokogiri', '~> 1.6.1'
gem 'rails-i18n', '~> 4.0.1'
group :test do
	gem 'rspec-rails', '~> 3.4'
	gem 'spring-commands-rspec', '~> 1.0.1'
	gem 'capybara', '~> 2.2.1'
	gem 'factory_girl_rails', '~> 4.4.1'
	gem 'database_cleaner', '~> 1.2.0'
end