adamrdavid

Database do's and don'ts

This is a generic guidline that applies mostly to Ruby on Rails and Postgres, but can be usefull for running any database migrations in CI.

Table of contents

• Table of contents
• Zero downtime migrations
  • Resources
• Basic tenets

blacktm

#!/bin/bash

# --------------------------------------------------------------------------------------------
# Installs Ruby using rbenv/ruby-build on the Raspberry Pi (Raspbian)
#
# Run from the web:
#   bash <(curl -s https://gist.githubusercontent.com/blacktm/8302741/raw/install_ruby_rpi.sh)
# --------------------------------------------------------------------------------------------

# Set the Ruby version you want to install

stuartbain

class SubdomainValidator < ActiveModel::EachValidator
  # http://matthewhutchinson.net/2010/10/27/rails-3-subdomain-validation-activemodeleachvalidator

  def validate_each(object, attribute, value)
    return unless value.present?
    reserved_names = %w(www ftp mail pop smtp admin ssl sftp)
    reserved_names = options[:reserved] if options[:reserved]
    if reserved_names.include?(value)
      object.errors[attribute] << 'cannot be a reserved name'
    end

zenorocha

// Future versions of Hyper may add additional config options,
// which will not automatically be merged into this file.
// See https://hyper.is#cfg for all currently supported options.

module.exports = {
  config: {
    // default font size in pixels for all tabs
    fontSize: 14,

    // font family with optional fallbacks

jasdeepsingh

#!/usr/bin/ruby

require 'rubygems'
require 'net/http'
require 'uri'
require 'nokogiri'
require 'mail'

url      = ###/tracktest.php
refnum   = # my application reference number.

floatingboxes

<!-- 
  Stupid simple css cache bust for Jekyll using site generation timestamp year/month/day/hour/minute/seconds
  Output example: v=20130403134355
-->

<link rel="stylesheet" href="/css/styles.css?v={{ site.time | date: '%Y%m%d%H%M%S' }}">

mindreframer

require 'dbm'
require 'github_api'

class Cache
  attr_accessor :db
  def initialize
    @db = DBM.open('starred', 666, DBM::WRCREAT)
  end

  def load(key)

keighl

# Speed things up by not loading Rails env
config.assets.initialize_on_precompile = false

moustafasamir

 def get_facebook_friends(access_token)
    @graph = Koala::Facebook::API.new(access_token)
    friends = @graph.get_connections("me", "friends?fields=id,name,picture.type(large)")
    return friends
  end

leemeichin

class UrlValidator < ActiveModel::EachValidator
  def validate_each(record, attribute, value)
    record.errors[attribute] << (options[:message] || "must be a valid URL") unless url_valid?(value)    
  end
  
  # a URL may be technically well-formed but may not actually be
  # valid, so this checks for both.
  def url_valid?(url)
    url = URI.parse(url) rescue false
    url.kind_of?(URI::HTTP) || url.kind_of?(URI::HTTPS)