jamesgolick

import java.util.Date

class FancyInteger(val integer: Int) {
    def day: Int    = integer * 86400
    def hour: Int   = integer * 3600
    def minute: Int = integer * 60
    def ago: Date   = new Date(System.currentTimeMillis() - integer * 1000)
}

implicit def int2FancyInt(integer: Int): FancyInteger = new FancyInteger(integer)

jamesgolick

Cooking with Chef: Your servers will thank you

When you hear "sysadmin work", do you think of ssh, vi, and shell scripts? If you do, it's probably not the most fun sounding work. Repetitive, tedious, and error-prone are words that come to mind.

Thankfully, configuring servers is all but a solved problem thanks to Chef. The days of vi, and shell scripts are mostly over. Building complex infrastructure has never been easier. 

Whether you manage a multi-datacenter cluster, or the VPS that runs your blog, you have a tremendous amount to gain from configuration management. In this talk, I'll show you how it works.

jamesgolick

class Mysql::Result
  def each_utf8(&block)
    each_orig do |row|
      yield row.map {|col| String === col ? col.force_encoding("utf-8") : col }
    end
  end
  alias each_orig each
  alias each each_utf8

  def each_hash_utf8(&block)

jamesgolick

list match {
  case List(_, 3, _, _) => println("Four elements, with the 2nd being '3'.") 
  case List(_*) => println("Any other list with 0 or more elements.")
}

jamesgolick

package journalist
import java.util.Date

object FancyInt {
    implicit def int2FancyInt(int: Int): FancyInt = new FancyInt(int)
}

class FancyInt(val integer: Int) {
    def day: Int     = integer * 86400
    def days: Int    = day

jamesgolick

scala> <WTF />
res62: scala.xml.Elem = <WTF></WTF>

jamesgolick

import java.util.Date

object FancyInt {
    implicit def int2FancyInt(int: Int): FancyInt = new FancyInt(int)
}

class FancyInt(val integer: Int) {
    def day: Int     = integer * 86400
    def days: Int    = day
    def hour: Int    = integer * 3600

jamesgolick

object Tappable {
    implicit def any2Tappable[A](toTap: A): Tappable[A] = new Tappable(toTap)
}
class Tappable[A](toTap: A) {
    def tap(block: (A) => Unit): A = { block(toTap); toTap }
}

scala> import Tappable._
import Tappable._

jamesgolick

require 'sequel'

# Out of the box, Sequel uses IS TRUE/FALSE for boolean parameters
# This prevents MySQL from using indexes.
#
# This patch fixes that.
module Sequel
  module SQL
    class BooleanExpression
      def self.from_value_pairs(pairs, op=:AND, negate=false)

jamesgolick

CREATE TABLE `index_addresses_on_user_id` (
  `id` binary(16) NOT NULL DEFAULT '\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0',
  `user_id` int(11) NOT NULL DEFAULT '0',
  PRIMARY KEY (`user_id`,`id`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1