kplawver’s gists

kplawver / json_callbacks.rb

Created September 24, 2009 13:24

Adds :callback option to to_json for Array, Hash and ActiveRecord::Base.

	# Adds :callback option to to_json for Array, Hash and ActiveRecord::Base. Usage:
	# user = User.find(:first)
	# user.to_json(:callback => "foo")
	# => foo({"user":{"name":"The Dude"}})
	# There's probably a much better way to do this - would love ideas / improvements!

	class Array
	alias orig_to_json to_json
	def to_json(*a)
	callback = nil

kplawver / optimize_tables.rb

Created October 7, 2009 13:06

I was tired of running optimize table by hand, so I wrote something do to it for me.

	# Will run optimize table on either just that class's MySQL InnDB table, or on ALL of that connection's tables.
	# Works only with MySQL InnoDB tables, but could be used to run repair if you're using MyISAM.

	class ActiveRecord::Base
	def self.optimize_table
	begin
	self.connection.execute("optimize table #{self.table_name}")
	rescue Exception => e
	logger.error("#{self.class_name} - error optimizing #{self.table_name}: #{e}")
	else

kplawver / runner.rb

Created November 3, 2009 16:10

I needed a script/runner equivalent for Sinatra. This works pretty well so far.

	#!/usr/bin/env ruby
	# If you want to run it on a specific environment, set your RACK_ENV environment variable.

	require 'rubygems'
	require File.expand_path("../app",__FILE__)

	# puts ARGV.options.inspect

	if ARGV[0].length > 0 && ARGV[0].is_a?(String)
	puts eval(ARGV[0])

kplawver / easy_created_at_named_scope.rb

Created December 15, 2009 18:44

Add this to your ActiveRecord models for an easy "find me everything that happened on this day" named scope

	# Add this to your ActiveRecord models for an easy "find me everything that happened on this day" named scope:
	named_scope :by_date, lambda {\|date\|
	if date.is_a?(String)
	date = Time.parse(date)
	end
	date_start = date.midnight
	date_end = date_start.advance(:hours => 24)
	{
	:conditions => ["created_at between ? and ?",date_start,date_end]
	}

kplawver / loadr.rb

Created January 12, 2010 21:16

Helps simplify and automate apache benchmark runs.

	## Loader
	# Does a pre-configured set of apache benchmark on an array of URLs passed in.
	# Yes, it's silly, but it saved me a lot of time today.
	#
	# Usage: Loadr.test(['http://cnn.com','http://lwvr.net'],"news_and_me")
	# - Created a log file for each URL, then fills it with the results of its ab runs.
	# - Only works on OS's where ab is in the path.

	class Loadr
	@@run_sets = [

kplawver / cloud_front.rb

Created June 21, 2010 21:52

Simple example for streaming private content from CloudFront

	require 'base64'
	require 'openssl'
	require 'sha1'

	# This will generate URLs for streaming private content from CloudFront...
	# I followed these instructions for setting up the bucket and CloudFront:
	## http://support.rightscale.com/index.php?title=12-Guides/01-RightScale_Dashboard_User_Guide/02-Clouds/01-EC2/11-CloudFront/Serving_Private_Content

	# I have a global config hash for my private key for S3:
	# The access_key is the CloudFront key id you set up.

kplawver / beanstalkd_plugin.rb

Created December 7, 2010 14:57

A Scout plugin for monitoring a Beanstalkd. It remembers the current ready and buried jobs and does a crude measure of jobs/second.

	class BeanstalkdPlugin < Scout::Plugin
	needs 'beanstalk-client'

	OPTIONS=<<-EOS
	connection_string:
	default: localhost:11300
	name: Connection String
	notes: The host and port to connect to.
	EOS

kplawver / file_check_plugin.rb

Created December 7, 2010 15:00

A super simple Scout plugin to monitor just the existence of a file. We're using it to alert us when an NFS share goes down (if it times out, it's down).

	class FileCheckPlugin < Scout::Plugin

	OPTIONS=<<-EOS
	file:
	default: ~
	name: File
	notes: The file to check to make sure it exists.
	EOS

	def build_report

kplawver / paginate_array.js

Created October 11, 2011 13:23

I needed to page through results in an array and couldn't find any simple pagination functions through the googles, so I wrote this. I hope it's useful!

	function paginateArray(arr,page_num,per_page) {
	var i,r=[];

	if (arr.length < 1) {
	return r;
	}

	if (per_page == undefined \|\| per_page == null) {
	per_page = 10;
	}

kplawver / index.html

Created February 13, 2012 21:11

Weird response from http://github.com

	<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/1999/REC-html401-19991224/strict.dtd">
	<!-- <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"
	"http://www.w3.org/TR/html4/strict.dtd"> -->
	<HTML>
	<HEAD>
	<META HTTP-EQUIV="Refresh" CONTENT="0.1">
	<META HTTP-EQUIV="Pragma" CONTENT="no-cache">
	<META HTTP-EQUIV="Expires" CONTENT="-1">
	<TITLE></TITLE>
	</HEAD>

Kevin Lawver kplawver