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@ankane
ankane / README.md
Last active December 14, 2015 03:39 — forked from panthomakos/benchmark.rb

Benchmark Bundler

Because loading gems can take longer than you think

Now available as a gem - get it here

@cpjolicoeur
cpjolicoeur / gist:3590737
Created September 1, 2012 23:15
Ordering a query result set by an arbitrary list in PostgreSQL

I'm hunting for the best solution on how to handle keeping large sets of DB records "sorted" in a performant manner.

Problem Description

Most of us have work on projects at some point where we have needed to have ordered lists of objects. Whether it be a to-do list sorted by priority, or a list of documents that a user can sort in whatever order they want.

A traditional approach for this on a Rails project is to use something like the acts_as_list gem, or something similar. These systems typically add some sort of "postion" or "sort order" column to each record, which is then used when querying out the records in a traditional order by position SQL query.

This approach seems to work fine for smaller datasets, but can be hard to manage on large data sets with hundreds (or thousands) of records needing to be sorted. Changing the sort position of even a single object will require updating every single record in the database that is in the same sort group. This requires potentially thousands of wri

@piscisaureus
piscisaureus / pr.md
Created August 13, 2012 16:12
Checkout github pull requests locally

Locate the section for your github remote in the .git/config file. It looks like this:

[remote "origin"]
	fetch = +refs/heads/*:refs/remotes/origin/*
	url = git@github.com:joyent/node.git

Now add the line fetch = +refs/pull/*/head:refs/remotes/origin/pr/* to this section. Obviously, change the github url to match your project's URL. It ends up looking like this:

@brandonb927
brandonb927 / osx-for-hackers.sh
Last active May 5, 2024 13:30
OSX for Hackers: Yosemite/El Capitan Edition. This script tries not to be *too* opinionated and any major changes to your system require a prompt. You've been warned.
#!/bin/sh
###
# SOME COMMANDS WILL NOT WORK ON macOS (Sierra or newer)
# For Sierra or newer, see https://github.com/mathiasbynens/dotfiles/blob/master/.macos
###
# Alot of these configs have been taken from the various places
# on the web, most from here
# https://github.com/mathiasbynens/dotfiles/blob/5b3c8418ed42d93af2e647dc9d122f25cc034871/.osx
@witscher
witscher / gist:3011497
Created June 28, 2012 13:49
very, very simple HTTP POST upload app
# set max_body_size and http_basic_auth in your nginx config
require 'rubygems'
require 'sinatra'
get '/' do
"none ya business"
end
@panthomakos
panthomakos / benchmark.rb
Created May 3, 2012 20:06
Benchmark Your Bundle
#!/usr/bin/env ruby
require 'benchmark'
REGEXPS = [
/^no such file to load -- (.+)$/i,
/^Missing \w+ (?:file\s*)?([^\s]+.rb)$/i,
/^Missing API definition file in (.+)$/i,
/^cannot load such file -- (.+)$/i,
]
@bsodmike
bsodmike / development.log
Created April 12, 2012 22:11
Example of subscribing to ActiveSupport::Notifications in Rails 3.2.3
notification: process_action.action_controller 2012-04-13 01:08:35 +0300 2012-04-13 01:08:35 +0300 af358ed7fab884532ec7 {:controller=>"Devise::SessionsController", :action=>"new", :params=>{"action"=>"new", "controller"=>"devise/sessions"}, :format=>:html, :method=>"GET", :path=>"/login/sign_in", :status=>200, :view_runtime=>279.3080806732178, :db_runtime=>40.053}
@tkarpinski
tkarpinski / github_issues_to_csv.rb
Created April 12, 2012 18:09 — forked from henare/github_issues_to_csv.rb
Exports Github issues to CSV (API v3)
require 'octokit'
require 'csv'
require 'date'
# Github credentials to access your private project
USERNAME="USER_NAME"
PASSWORD="SEKRIT"
# Project you want to export issues from
USER="REPO_OWNER"
PROJECT="REPO_NAME"
@them0nk
them0nk / rspec_rails_cheetsheet.rb
Created March 23, 2012 03:39
Rspec Rails cheatsheet (include capybara matchers)
#Model
@user.should have(1).error_on(:username) # Checks whether there is an error in username
@user.errors[:username].should include("can't be blank") # check for the error message
#Rendering
response.should render_template(:index)
#Redirecting
response.should redirect_to(movies_path)
@burke
burke / 0-readme.md
Created January 27, 2012 13:44 — forked from funny-falcon/cumulative_performance.patch
ruby-1.9.3-p327 cumulative performance patch for rbenv

ruby-1.9.3-p327 cumulative performance patch for rbenv

This installs a patched ruby 1.9.3-p327 with various performance improvements and a backported COW-friendly GC, all courtesy of funny-falcon.

Requirements

You will also need a C Compiler. If you're on Linux, you probably already have one or know how to install one. On OS X, you should install XCode, and brew install autoconf using homebrew.