ryansobol

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.

goosetav

RE: teampoltergeist/poltergeist#44

Use Rack::SimpleEndpoint to prevent Poltergeist/PhantomJS from crashing on TTF fonts.

In config/environments/test.rb, add

require 'rack/contrib/simple_endpoint'
config.middleware.insert_after Rack::Runtime, Rack::SimpleEndpoint, /\.ttf$/ do |req, res, match|
  res.status = '403'

"I will not serve TTF fonts in test mode."

timcheadle

Make /robots.txt aware of the Rails environment

You probably don't want Google crawling your development staging app. Here's how to fix that.

$ mv public/robots.txt config/robots.production.txt
$ cp config/robots.production.txt config/robots.development.txt

Now edit config/routes.rb to add a route for /robots.txt, and add the controller code.

rgreenjr

-- show running queries (pre 9.2)
SELECT procpid, age(clock_timestamp(), query_start), usename, current_query 
FROM pg_stat_activity 
WHERE current_query != '<IDLE>' AND current_query NOT ILIKE '%pg_stat_activity%' 
ORDER BY query_start desc;

-- show running queries (9.2)
SELECT pid, age(clock_timestamp(), query_start), usename, query 
FROM pg_stat_activity 
WHERE query != '<IDLE>' AND query NOT ILIKE '%pg_stat_activity%' 

rogal111

# put this file in config/initializers
#
# USAGE:
# in your paperclip model:
#   has_attached_file :document
#   before_post_process { |c| transliterate_file_name(:document) }


module TransliteratePaperclip
   def transliterate_file_name(paperclip_file)

steventux

ENV["RAILS_ENV"] = "test"
require File.expand_path('../../config/environment', __FILE__)
require File.dirname(__FILE__) + '/blueprints'
require 'faker'
require 'rails/test_help'
require 'minitest/autorun'
require 'minitest/pride'

class MiniTest::Unit::TestCase
  include MiniTest::ActiveRecordAssertions

liamcurry

Moving from jQuery

Events

// jQuery
$(document).ready(function() {
  // code
})

them0nk

#Model 

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

#Rendering
response.should render_template(:index)

#Redirecting 
response.should redirect_to(movies_path)

icco

#!/bin/bash
clear;
while true; do
  for i in $(ls /); do
    code=${code}`dd bs=1 count=32 if=/dev/urandom 2> /dev/null | md5 | grep -o '\w*'`;
  done;

  echo $code;
  code=0;
done;

nazgob

# you have ctags but it does not work...
$ ctags -R --exclude=.git --exclude=log *
ctags: illegal option -- R
usage: ctags [-BFadtuwvx] [-f tagsfile] file ...

#you need to get new ctags, i recommend homebrew but anything will work
$ brew install ctags

#alias ctags if you used homebrew
$ alias ctags="`brew --prefix`/bin/ctags"