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pawel2105 / warrior_js_4.js
Created June 30, 2016 14:58
attempt for level 4
class Player {
constructor() {
this._health = 20
playTurn(warrior) {
class ArticlesController < ApplicationController
def index
@articles = Article.all
pawel2105 / gol.rb
Created September 15, 2014 13:24
Game of life implementation
class World
attr_accessor :cells
def initialize
@cells = []
def push_cell cell
@cells = @cells << cell
pawel2105 / discussion.rb
Created September 4, 2014 10:11
Reusable eager loading with rails
class Discussion < ActiveRecord::Base
scope :with_includes, -> { includes(:comments, :category) }
scope :by_recency, -> { order('created_at DESC') }
scope :visible, -> { where(hidden: false) }
# We create a new class with some sane defaults
class Garden
def initialize(args={})
@trees = args[:trees] || 15
@perimiter = args[:perimiter] || 'fence'
@lawn = args[:lawn] || 'grass'
# Find your tour ID
tour = Tour.find(xxx)
# This clears memcache for all regions
class ErrorsController < ApplicationController
def not_found
# Will render the app/views/errors/not_found.html.erb template
def not_found
respond_to do |format|
format.html { render template: 'errors/not_found', layout: 'layouts/application', status: 404 }
# Below is to ensure rails doesn't 500 when someone requests /blahblahblah.js or any other non-html format.
format.all { render nothing: true, status: 404 }
pawel2105 / 1. error
Created April 10, 2014 20:01
Rspec breaks if Capybara exists and rails is not required.
capybara-2.2.1/lib/capybara/rails.rb:15:in `<top (required)>': undefined method `join' for nil:NilClass (NoMethodError)
pawel2105 / first deploy
Last active August 29, 2015 13:58
capistrano-sidekiq deploys
INFO [5cab5ea4] Running ~/.rvm/bin/rvm 2.1.1 do bundle exec sidekiqctl stop /home/deploy/myapp/shared/tmp/pids/ 10 on
DEBUG [5cab5ea4] Command: cd /home/deploy/myapp/current && ~/.rvm/bin/rvm 2.1.1 do bundle exec sidekiqctl stop /home/deploy/myapp/shared/tmp/pids/ 10
DEBUG [5cab5ea4] Sidekiq shut down gracefully.
INFO [edd9b953] Running ~/.rvm/bin/rvm 2.1.1 do bundle exec sidekiq --index 0 --pidfile /home/deploy/myapp/shared/tmp/pids/ --environment production --logfile /home/deploy/myapp/shared/log/sidekiq.log --daemon on
DEBUG [edd9b953] Command: cd /home/deploy/myapp/current && ~/.rvm/bin/rvm 2.1.1 do bundle exec sidekiq --index 0 --pidfile /home/deploy/myapp/shared/tmp/pids/ --environment production --logfile /home/deploy/myapp/shared/log/sidekiq.log --daemon
INFO [edd9b953] Finished in 1.817 seconds with exit status 0 (successful).
INFO [c1681dc0] Running ~/.rvm/bin/rvm 2.1.1 do bundle exec sidekiq --index 0 --pidfile /home
Given the following domain and scenario:
Topic has_many votes
A rails noob that has a massive dataset but little understanding into ActiveRecord query methods
and little SQL knowledge.
Using elegant and idiomatic Ruby, what is a good solution for returning all topics sorted by the
number of votes they have. Because of the SQL knowledge gap, you should avoid having to use SQL directly.