Aaron Culich aculich

Nestable, sortable and dragable categories:

In the project I'm working on we wanted to have a Category model which we wanted to be nestable. But we also liked the user to have a draggable interface to manage and rearrange the order of his categories. So we chose awesome_nested_set for the model and jQuery.nestedSortable for the UI.

It took me some time to arrange things to work properly so I wanted to share my work in case it helps anybody.

Before beginning

you might want to take a look at a demo app

go to: http://awesomenestedsortable.heroku.com/groups/
click in show of any group

How to extract a single file with its history from a git repository

These steps show two less common interactions with git to extract a single file which is inside a subfolder from a git repository. These steps essentially reduce the repository to just the desired files and should performed on a copy of the original repository (1.).

First the repository is reduced to just the subfolder containing the files in question using git filter-branch --subdirectory-filter (2.) which is a useful step by itself if just a subfolder needs to be extracted. This step moves the desired files to the top level of the repository.

Finally all remaining files are listed using git ls, the files to keep are removed from that using grep -v and the resulting list is passed to git rm which is invoked by git filter-branch --index-filter (3.). A bit convoluted but it does the trick.

1. copy the repository to extract the file from and go to the desired branch

Sentence Tokenization

>>> from nltk import tokenize
>>> para = "Hello. My name is Jacob. Today you'll be learning NLTK."
>>> sents = tokenize.sent_tokenize(para)
>>> sents
['Hello.', 'My name is Jacob.', "Today you'll be learning NLTK."]

Introduction

An introduction to curl using GitHub's API.

The Basics

Makes a basic GET request to the specifed URI

curl https://api.github.com/users/caspyin

#Mac OS X

Mensch coding font

	"""
	The MIT License (MIT)
	Copyright (c) 2011 Numan Sachwani

	Permission is hereby granted, free of charge, to any person obtaining a copy of
	this software and associated documentation files (the "Software"), to deal in
	the Software without restriction, including without limitation the rights to
	use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
	of the Software, and to permit persons to whom the Software is furnished to do
	so, subject to the following conditions:

	require 'nokogiri'
	require 'uri'

	module FeedTags

	def absolute_url(url, base='/')
	return url if url.match /^(javascript\|data):/
	root = @context.registers[:site].config['home']
	URI.join(root, base, url).to_s
	end

	wget http://blog.anantshri.info/content/uploads/2010/09/add-apt-repository.sh.txt

	sudo mv add-apt-repository.sh.txt /usr/sbin/add-apt-repository

	sudo chmod o+x /usr/sbin/add-apt-repository

	sudo chown root:root /usr/sbin/add-apt-repository

	sudo add-apt-repository ppa:webupd8team/sublime-text-2

	In [1]: policy = """{
	...: "Statement":[{
	...: "Effect":"Allow",
	...: "Action":["s3:*"],
	...: "Resource":["arn:aws:s3:::mybucket"]}]}"""
	In [2]: import boto
	In [4]: c = boto.connect_iam()
	In [5]: instance_profile = c.create_instance_profile('myinstanceprofile')
	In [6]: role = c.create_role('myrole')
	In [7]: c.add_role_to_instance_profile('myinstanceprofile', 'myrole')

	--This script MUST be named "Switch to <User>.scpt", where <User> is the name of the user to switch to.
	--You must first make a password item (a.k.a. a key) for the other user's password using Keychain Access,
	--and call it "<user>", where "<user>" is the other user's name.the field "Kind" must be "User Login" (without quotes).
	--The script assumes that you make this key in your login.keychain, which is the default one.
	--The first time you run this script, you will be prompted to allow Keychain Scripting to access the password of the key.
	--This script requires "Enable access for assistive devices" to be enabled in the Universal Access system preference pane.

	set username to word -1 of my findReplace(".scpt", "", (path to me as text))

	-- Invoke Fast User Switching. The `id -ur username` part gets the uid number that corresponds to the username and substitutes it at the end of the CGSession command