abitdodgy

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

abitdodgy

(function ($) {
    // Author: Mohamad El-Husseini, www.mohamad.im
    // Light weight character counter for jQuery.
    // Example: http://jsfiddle.net/yHPg7/6/

    "use strict";

    $.fn.counter = function (options) {
        options = $.extend($.fn.counter.defaults, options);

abitdodgy

(($) ->
  
  # Author: Mohamad El-Husseini, www.mohamad.im
  # Light weight character counter for jQuery.
  # Example: http://jsfiddle.net/yHPg7/6/
  "use strict"
  $.fn.counter = (options) ->
    defaultText = ->
      options.defaultText.replace /minSize/g, options.minSize
    count = (elem) ->

abitdodgy

Rails Deployment with Ubuntu 12.10, RVM, Postgresql, Nginx, and Unicorn.

This setup was used successfully on a DigitalOcean VPS. After much trial and error, and following a number of disparate guides and tutorials, I was able to distil the process to the information found in this gist.

Before getting started, you should create a new server droplet. Login to verify that everything is working correctly.

ssh root@xxx.xxx.xx.xx

abitdodgy

A sorting algorithm for sorting by "hotness", roughly based on Reddit's algorithm with a few tweeks.

scope :order_by_hot, ->
  { order("round((votes_count - 1) / POW(DATE_PART('day', Now() - created_at) * 24 + DATE_PART('hour', Now() - created_at) + 2, 1.5)::numeric, 8) DESC, votes_count DESC") }

abitdodgy

Friendly URLs

By default, Rails applications build URLs based on the primary key -- the id column from the database. Imagine we have a Person model and associated controller. We have a person record for Bob Martin that has id number 6. The URL for his show page would be:

/people/6

But, for aesthetic or SEO purposes, we want Bob's name in the URL. The last segment, the 6 here, is called the "slug". Let's look at a few ways to implement better slugs.

abitdodgy

class SignedUrlsController < ApplicationController
  def s3
    # Create client and set bucket
    client = AWS::S3.new
    bucket = client.buckets[ENV['S3_BUCKET']]

    # Extract file extension since we're renaming the file
    extension = File.extname(params[:image_name]).downcase
    
    # Get mime-type from extension

abitdodgy

Creating a New Chef Kitchen

A kitchen is a collection of recipes associated with a deployment. For example, a kitchen can contain cookbooks for installing Ruby, MySQL, and nginx.

knife init solo kitchen_name

This will create the necessary stucture for the kitchen.

abitdodgy

require "i18n"

class EmailAddress
  VALID_EMAIL_ADDRESS_REGEX = /\A[\w+\-.]+@[a-z\d\-.]+\.[a-z]+\z/i

  def self.malformed?(email)
    email !~ VALID_EMAIL_ADDRESS_REGEX
  end

  def self.valid?(email)

abitdodgy

<% flash.each do |key, message| %>
  <%= content_tag :div, class: "alert alert-full-page alert-#{key} alert-dismissable", role: "alert" do %>
    <button type="button" class="close" data-dismiss="alert" aria-label="Close">
      <span aria-hidden="true">&times;</span>
    </button>
    <%= message %>
  <% end %>
<% end %>