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@jlecour
jlecour / README.md
Created October 10, 2011 20:33
Identify paperclip attachment files that are not attached to any record

Let's say you have a model, with an files attached, using Paperclip. You have a couple millions of those files and you're not sure that every one of them (and all its thumbnails) are still used by a database record.

You could use this rake task to recursively scan all the directories and check if the files need to be kept or destroyed.

In this example, the model is called Picture, the attachment is image and the path is partitioned like images/001/412/497/actual_file.jpg

The task is going down the path. Each time the path ends with 3 triplets of digits ("001/412/497" for example) it looks for a record with the ID 1412497. If such a record doesn't exist, the whole directory is moved to a parallel images_deleted directory. At the end you can delete the files if you like, or move them to an archive location.

You can use the "dry run" mode : to print which files would be removed

@thijsc
thijsc / gist:1391107
Created November 24, 2011 11:08
Select item from chosen js select with Capybara and Selenium
def select_from_chosen(item_text, options)
field = find_field(options[:from])
option_value = page.evaluate_script("$(\"##{field[:id]} option:contains('#{item_text}')\").val()")
page.execute_script("$('##{field[:id]}').val('#{option_value}')")
end
@rkh
rkh / chat.rb
Created December 14, 2011 12:55
Simple Chat Application using the Sinatra Streaming API
# coding: utf-8
require 'sinatra'
set server: 'thin', connections: []
get '/' do
halt erb(:login) unless params[:user]
erb :chat, locals: { user: params[:user].gsub(/\W/, '') }
end
get '/stream', provides: 'text/event-stream' do
@debprado
debprado / rails.history.js
Created January 3, 2012 19:04 — forked from nragaz/rails.history.js
Add callbacks to remote links in Rails to manage browser history using pageState and replaceState
function historySupport() {
return !!(window.history && window.history.pushState !== undefined);
}
function pushPageState(state, title, href) {
if (historySupport()) {
history.pushState(state, title, href);
}
}
@bradmontgomery
bradmontgomery / rvm_apache_passenger.txt
Created January 10, 2012 04:45
RVM + Apache + passenger setup for Ubuntu
# Install rvm system-wide
bash -s stable < <(curl -s https://raw.github.com/wayneeseguin/rvm/master/binscripts/rvm-installer )
# Update the packages
apt-get update
apt-get upgrade
apt-get install build-essential
# get the packages required by ruby
rvm pkg install zlib
@shilov
shilov / redis_json_marshal_eval_benchmarks.rb
Created January 27, 2012 23:01
Ruby Redis benchmarks for JSON vs Marshal vs String
# http://forrst.com/posts/JSON_vs_Marshal_vs_eval_Which_is_the_fastest_fo-6Qy
require 'benchmark'
require 'json'
require 'redis'
# -----------------
puts "Initialize variables.."
@fnichol
fnichol / README.md
Created February 26, 2012 01:23
A Common .ruby-version File For Ruby Projects

A Common .ruby-version File For Ruby Projects

Background

I've been using this technique in most of my Ruby projects lately where Ruby versions are required:

  • Create .rbenv-version containing the target Ruby using a definition name defined in ruby-build (example below). These strings are a proper subset of RVM Ruby string names so far...
  • Create .rvmrc (with rvm --create --rvmrc "1.9.3@myapp") and edit the environment_id= line to fetch the Ruby version from .rbenv-version (example below).

Today I learned about another Ruby manager, rbfu, where the author is using a similar technique with .rbfu-version.

@latentflip
latentflip / 0-Instructions.md
Created April 5, 2012 11:43
Oauth Testing

Testing OAuth Apis in rails 3.x apps

  1. Install phantomjs
  2. Add rspec, poltergeist, capybara, vcr to Gemfile
  3. bundle install
  4. Create spec/acceptance folder
  5. Create spec/acceptance/acceptance_helper.rb (see below)
  6. Create spec for oauth flow (see below) read the comments carefully

NB: My signup flow is something like:

@amfeng
amfeng / callback.erb
Last active August 8, 2022 19:33
Stripe OAuth Example -- Ruby
<!doctype html>
<head>
<title>Stripe OAuth Example</title>
</head>
<body>
<%= @access_token %>
</body>
</html>
@rakhmad
rakhmad / clojure.md
Created April 17, 2012 15:55
Setting Up Clojure on OS X

Setting Up Clojure on OS X

I spent a lot of time trying to find a pretty optimal (for me) setup for Clojure… at the same time I was trying to dive in and learn it. This is never optimal; you shouldn't be fighting the environment while trying to learn something.

I feel like I went through a lot of pain searching Google, StackOverflow, blogs, and other sites for random tidbits of information and instructions.

This is a comprehensive "what I learned and what I ended up doing" that will hopefully be of use to others and act as a journal for myself if I ever have to do it again. I want to be very step-by-step and explain what's happening (and why) at each step.

Step 1: Getting Clojure (1.3)