Vivek Parihar vparihar01

Originally published in June 2008

When hiring Ruby on Rails programmers, knowing the right questions to ask during an interview was a real challenge for me at first. In 30 minutes or less, it's difficult to get a solid read on a candidate's skill set without looking at code they've previously written. And in the corporate/enterprise world, I often don't have access to their previous work.

To ensure we hired competent ruby developers at my last job, I created a list of 15 ruby questions -- a ruby measuring stick if you will -- to select the cream of the crop that walked through our doors.

What to expect

Candidates will typically give you a range of responses based on their experience and personality. So it's up to you to decide the correctness of their answer.

What is it?

Collection of concerns for your Rails application

Installation

Copy to your app/models/concerns directory

Ubuntu 12.04, Ruby, Rails, Nginx, Unicorn and git-deploy

In the seemlingly endless search for the actual correct and easy way to deploy a Rails app, we have tried several ways. We tried out using Apache2 and running a cluster of Thin servers. With the built in threading of Puma we decided to use it with Nginx.

Server Setup

Create new server
Login to new server
- ssh root@IPaddress (you can also use the domain name if you have the DNS setup already)
- accept the RSA key

Multiple SSH Keys settings for different github account

create different public key

create different ssh key according the article Mac Set-Up Git

$ ssh-keygen -t rsa -C "[email protected]"

	/**
	* ReactJS: JavaScript like you've always done it.
	*
	* This example renders your top ten most followed friends/followers, `filter`ing
	* only your favorites, and putting a star on all verified accounts.
	*
	* With ReactJS, any time your data changes, the UI is always brought up to date
	* automatically. If friends length changes, or followCount - it always shows what
	* `render` describes.
	*/

	# PassengerMaxPoolSize
	# Default: 6
	# For 2gb RAM: 30
	# For 256 slice with MySQL running: 2
	PassengerMaxPoolSize 2

	# PassengerPoolIdleTime
	# Recommended to be avg time per page * 2
	# In Google Analytics... (Avg time on site / Avg page views) * 2
	# Default: 300


	Start and stop the server on Windows
	Start and stop the server on Linux
	Start and stop Apache
	Start and stop the server on Windows

	Start the server from the Start menu
	Choose Start > All Programs > Adobe > Flash Media Server 4.5 > Start Adobe Flash Media Server 4.5.
	Choose Start > All Programs > Adobe > Flash Media Server 4.5 > Start Flash Media Administration Server 4.5.
	Stop the server from the Start menu

	# Nginx+Unicorn best-practices congifuration guide. Heartbleed fixed.
	# We use latest stable nginx with fresh openssl, zlib and pcre dependencies.
	# Some extra handy modules to use: --with-http_stub_status_module --with-http_gzip_static_module
	#
	# Deployment structure
	#
	# SERVER:
	# /etc/init.d/nginx (1. nginx)
	# /home/app/public_html/app_production/current (Capistrano directory)
	#

	Architecture: Rails 3.2, Solr 1.4 with sunspot_solr gem, Apache HTTP server as reverse proxy to
	Rails app, Jquery UI

	Note: I don't care about the distinction between autocomplete and autosuggest. I am implementing what some
	people call autosuggest, and I'm calling it autocomplete.


	Given the above existing architecture, I want to add an autocomplete field into my app for a single
	attribute on a single model. It needs to be fast and secure (duh). The search target field could have
	white space and the search input should allow it, e.g., if I search with "iker's gui" it should return

	class ActionDispatch::Routing::Mapper
	def draw(routes_name)
	instance_eval(File.read(Rails.root.join("config/routes/#{routes_name}.rb")))
	end
	end

	BCX::Application.routes.draw do
	draw :api
	draw :account
	draw :session