authorNari

OK, Let's begin. Hello, Everybody.
My name is Narihiro Nakamura.
Today, I'm talking about "Parallel worlds of CRuby's GC".

I'm very happy now, because I'm meeting attendee in rubyconf.
And, one of my dreams is to talk in rubyconf.
So, I'm very happy and exciting.

Today is my first presentation in English.
My English is not good.

IanVaughan

#!/usr/bin/env bash

uninstall() {
  list=`gem list --no-versions`
  for gem in $list; do
    gem uninstall $gem -aIx
  done
  gem list
  gem install bundler
}

shunchu

t = 236 # seconds
Time.at(t).utc.strftime("%H:%M:%S")
=> "00:03:56"

# Reference
# http://stackoverflow.com/questions/3963930/ruby-rails-how-to-convert-seconds-to-time

jwo

# 
# Install the MYSQL driver
#   gem install mysql2
#
# Ensure the MySQL gem is defined in your Gemfile
#   gem 'mysql2'
#
# And be sure to use new-style password hashing:
#   http://dev.mysql.com/doc/refman/5.0/en/old-client.html
development:

arjunvenkat

How to seed a Rails database with a CSV file

1. Setup

First, Create a folder inside of lib called seeds

Put your CSV file example.csv into the lib/seeds folder. In the example below, the file is called real_estate_transactions.csv

Make sure you've created a resource with the appropriate columns to match your seed data. The names don't have to match up.

zaemiel

1. Gemfile

gem 'ckeditor', github: 'galetahub/ckeditor'

2. bundle install

3. app/assets/javascripts/application.js
//= require ckeditor/init

4. config/initializers/active_admin.rb

Bartuz

# RSpec matcher for validates_with.
# https://gist.github.com/2032846
# Usage:
#
#     describe User do
#       it { should validate_with CustomValidator }
#     end
RSpec::Matchers.define :validate_with do |expected_validator, options|
  match do |subject|
    @validator = subject.class.validators.find do |validator|

TimothyRHuertas

Alex Curtis created react-treebeard a data driven tree view for React. I needed to enable users to filter the tree's nodes based on input text. To accomplish this I transform the tree's data using 2 functions when the filter changes and rerender the view:

1. filterTree Given a tree return a new tree keeping only the nodes that meet one of the following conditions:
   1. Has matching text
   2. Has a parent with matching text
   3. Has a child with matching text
2. expandNodesWithMatchingDescendants - Given a tree mark all the nodes with matching descendants as toggled

Here are the aformentioned functions.

eikes

 ["Africa/Algiers", "West Central Africa"],
 ["Africa/Cairo", "Cairo"],
 ["Africa/Casablanca", "Casablanca"],
 ["Africa/Harare", "Harare"],
 ["Africa/Johannesburg", "Pretoria"],
 ["Africa/Monrovia", "Monrovia"],
 ["Africa/Nairobi", "Nairobi"],
 ["America/Argentina/Buenos_Aires", "Buenos Aires"],
 ["America/Bogota", "Bogota"],
 ["America/Caracas", "Caracas"],

jeffkreeftmeijer

require 'socket'
require 'rack'
require 'rack/lobster'

app = Rack::Lobster.new
server = TCPServer.new 5678

while session = server.accept
  request = session.gets
  puts request