henkm

  #model (idea 100% stolen from ryanb)
  def author_tokens=(ids)
    ids.gsub!(/CREATE_(.+?)_END/) do
      Author.create!(:name => $1).id
    end
    self.author_ids = ids.split(",")
  end  

  # jquery.tokeninput.js

niquola

Install Rails 3.1 RC

gem install rails --pre

generate new app, skipping Test::Unit file generation

rails new my_app -T

Set up Gemfile

waynehoover

irb(main):004:0> Teacher.find_by_id(49)
  Teacher Load (0.3ms)  SELECT "teachers".* FROM "teachers" WHERE "teachers"."id" = 49 LIMIT 1
=> #<Teacher id: 49, name: "Sam Rice", bio: nil, email: nil, created_at: "2011-06-22 21:03:41", updated_at: "2011-06-22 21:03:41", pic_file_name: nil, pic_content_type: nil, pic_file_size: nil, pic_updated_at: nil>

irb(main):007:0> Teacher.find_by_name("Sam Rice")
  Teacher Load (0.3ms)  SELECT "teachers".* FROM "teachers" WHERE "teachers"."name" = 'Sam Rice' LIMIT 1
=> nil

lucasfais

Sublime Text 2 – Useful Shortcuts (Mac OS X)

General

⌘T	go to file
⌘⌃P	go to project
⌘R	go to methods
⌃G	go to line
⌘KB	toggle side bar
⌘⇧P	command prompt

ryanb

# add this to your spec helper
RSpec.configure do |config|
  config.treat_symbols_as_metadata_keys_with_true_values = true
  config.filter_run :focus => true
  config.run_all_when_everything_filtered = true
end

# and then use the :focus tag in your specs

it "does something awesome", :focus do

dmonopoly

$('#book').animate({
    opacity: 0.25,
    left: '+=50',
    height: 'toggle'
  }, 5000, function() {
    // Animation complete.
  });

henrik

tmux cheatsheet

As configured in my dotfiles.

start new:

tmux

start new with session name:

v-yarotsky

### INSTALLATION NOTES ###
# 1. Install Homebrew (https://github.com/mxcl/homebrew)
# 2. brew install zsh
# 3. Install OhMyZsh (https://github.com/robbyrussell/oh-my-zsh)
# 4. brew install reattach-to-user-namespace --wrap-pbcopy-pbpaste && brew link reattach-to-user-namespace
# 5. Install iTerm2
# 6. In iTerm2 preferences for your profile set:
#      Character Encoding: Unicode (UTF-8)
#      Report Terminal Type: xterm-256color
# 7. Put itunesartist and itunestrack into PATH

ryin

#!/bin/bash

# Script for installing tmux on systems where you don't have root access.
# tmux will be installed in $HOME/local/bin.
# It's assumed that wget and a C/C++ compiler are installed.

# exit on error
set -e

TMUX_VERSION=1.8

arvearve

Mathematics: What do grad students in math do all day?

by Yasha Berchenko-Kogan

A lot of math grad school is reading books and papers and trying to understand what's going on. The difficulty is that reading math is not like reading a mystery thriller, and it's not even like reading a history book or a New York Times article.

The main issue is that, by the time you get to the frontiers of math, the words to describe the concepts don't really exist yet. Communicating these ideas is a bit like trying to explain a vacuum cleaner to someone who has never seen one, except you're only allowed to use words that are four letters long or shorter.

What can you say?