Kevin Musiorski RudyOnRails

If you get error like this:

Running via Spring preloader in process 7662
/Users/zulh/.rvm/gems/ruby-2.3.1@useradmin/gems/activesupport-4.2.6/lib/active_support/dependencies.rb:274:in `require': dlopen(/Users/zulh/.rvm/rubies/ruby-2.3.1/lib/ruby/2.3.0/x86_64-darwin15/readline.bundle, 9): Library not loaded: /usr/local/opt/readline/lib/libreadline.6.dylib (LoadError)
  Referenced from: /Users/zulh/.rvm/rubies/ruby-2.3.1/lib/ruby/2.3.0/x86_64-darwin15/readline.bundle
  Reason: image not found - /Users/zulh/.rvm/rubies/ruby-2.3.1/lib/ruby/2.3.0/x86_64-darwin15/readline.bundle
	from /Users/zulh/.rvm/gems/ruby-2.3.1@useradmin/gems/activesupport-4.2.6/lib/active_support/dependencies.rb:274:in `block in require'
	from /Users/zulh/.rvm/gems/ruby-2.3.1@useradmin/gems/activesupport-4.2.6/lib/active_support/dependencies.rb:240:in `load_dependency'
	from /Users/zulh/.rvm/gems/ruby-2.3.1@useradmin/gems/activesupport-4.2.6/lib/active_support/dependencies.rb:274:in `require'

Install MySQL on macOS Sierra

This procedure explains how to install MySQL using Homebrew on macOS Sierra 10.12

Install Homebrew

Installing Homebrew is effortless, open Terminal and enter :
$ /usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
Note: Homebrew will download and install Command Line Tools for Xcode 8.0 as part of the installation process.

Install MySQL

At this time of writing, Homebrew has MySQL version 5.7.15 as default formulae in its main repository :

URL	HTTP Verb	Action
/photos/	GET	index
/photos/new	GET	new
/photos	POST	create
/photos/:id	GET	show
/photos/:id/edit	GET	edit
/photos/:id	PATCH/PUT	update
/photos/:id	DELETE	destroy

	module Extensions::ActiveRecord::FindByOrderedIds
	extend ActiveSupport::Concern
	module ClassMethods
	def find_ordered(ids)
	order_clause = "CASE id "
	ids.each_with_index do \|id, index\|
	order_clause << sanitize_sql_array(["WHEN ? THEN ? ", id, index])
	end
	order_clause << sanitize_sql_array(["ELSE ? END", ids.length])
	where(id: ids).order(order_clause)

	$ curl --help
	Usage: curl [options...] <url>
	--abstract-unix-socket <path> Connect via abstract Unix domain socket
	--alt-svc <file name> Enable alt-svc with this cache file
	--anyauth Pick any authentication method
	-a, --append Append to target file when uploading
	--basic Use HTTP Basic Authentication
	--cacert <file> CA certificate to verify peer against
	--capath <dir> CA directory to verify peer against
	-E, --cert <certificate[:password]> Client certificate file and password

	#Model

	expect(@user).to have(1).error_on(:username) # Checks whether there is an error in username
	expect(@user.errors[:username]).to include("can't be blank") # check for the error message

	#Rendering
	expect(response).to render_template(:index)

	#Redirecting
	expect(response).to redirect_to(movies_path)

	require 'sidekiq/api'

	# 1. Clear retry set

	Sidekiq::RetrySet.new.clear

	# 2. Clear scheduled jobs

	Sidekiq::ScheduledSet.new.clear

	-- Create a group
	CREATE ROLE readaccess;

	-- Grant access to existing tables
	GRANT USAGE ON SCHEMA public TO readaccess;
	GRANT SELECT ON ALL TABLES IN SCHEMA public TO readaccess;

	-- Grant access to future tables
	ALTER DEFAULT PRIVILEGES IN SCHEMA public GRANT SELECT ON TABLES TO readaccess;

	{
	"jest": {
	"moduleFileExtensions": [
	"js",
	"json",
	"jsx",
	"node",
	"coffee"
	],
	"preprocessorIgnorePatterns": [ ],

	Because I couldn't find these with a quick Google search on 28 April 2015:

	Usage:
	rails new APP_PATH [options]

	Options:
	-r, [--ruby=PATH] # Path to the Ruby binary of your choice
	# Default: /home/brian/.rvm/rubies/ruby-2.2.0/bin/ruby
	-m, [--template=TEMPLATE] # Path to some application template (can be a filesystem path or URL)
	[--skip-gemfile], [--no-skip-gemfile] # Don't create a Gemfile