better git log in ~/.gitconfig

	[alias]
	l = log --date-order --date=iso --graph --full-history --all --pretty=format:'%x08%x09%C(red)%h %C(cyan)%ad%x08%x08%x08%x08%x08%x08%x08%x08%x08%x08%x08%x08%x08%x08%x08 %C(bold blue)%aN%C(reset)%C(bold yellow)%d %C(reset)%s'

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Load jquery dynamicly

	if (typeof jQuery == 'undefined') {
	function getScript(url, success) {
	var script = document.createElement('script');
	script.src = url;
	var head = document.getElementsByTagName('head')[0],
	done = false;
	// Attach handlers for all browsers
	script.onload = script.onreadystatechange = function() {
	if (!done && (!this.readyState || this.readyState == 'loaded' || this.readyState == 'complete')) {
	done = true;
	// callback function provided as param
	success();
	script.onload = script.onreadystatechange = null;
	head.removeChild(script);
	};
	};
	head.appendChild(script);
	};
	getScript('http://ajax.googleapis.com/ajax/libs/jquery/1.10.1/jquery.min.js', function() {
	console.log("done")
	});
	} else {
	alert("Could not load jQuery!")
	};

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remove all .DS_Store from git

find . -name .DS_Store -print0 | xargs -0 git rm --ignore-unmatch

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Rails console tips

	app.project_path(Project.first)
	=> "/projects/130349783-with-attachments"
	>> app.class
	=> ActionDispatch::Integration::Session
	>> app.get "/735644780/projects/605816632-bcx.atom"
	=> 200
	>> app.response.body
	=> "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<feed xml:lang=\"en-US\" ...
	>> Project.instance_method(:trash).source_location
	=> ["/Users/qrush/37s/apps/bcx/app/models/project.rb", 90]
	>> app.method(:get).source_location
	=> ["/Users/qrush/.rbenv/versions/1.9.3-p194/lib/ruby/gems/1.9.1/bundler/gems/rails-7d95b814583b/actionpack/lib/action_dispatch/testing/integration.rb", 32]
	#http://37signals.com/svn/posts/3176-three-quick-rails-console-tips

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rails require local

gem "mygem", :path => "/Users/ioannis/Development/mygem/pkg/"

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javascript objects keys and values

	data = {one:1, two:2, three:3};
	for(var key in data) {
	console.log(data[key])
	console.log(key)
	}

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device redirect back when user login

	class ApplicationController < ActionController::Base
	protect_from_forgery with: :exception
	def after_sign_in_path_for(resource)
	sign_in_url = url_for(:action => 'new', :controller => 'sessions', :only_path => false, :protocol => 'http')
	if request.referer == sign_in_url
	super
	else
	stored_location_for(resource) || request.referer || root_path
	end
	end
	end

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rails and unicorn on localhost

	#-------------------------------------------------
	#Gem file
	#-------------------------------------------------
	gem 'unicorn'
	#-------------------------------------------------
	#Procfile in root directory (for heroku):
	#-------------------------------------------------
	web: bundle exec unicorn -p $PORT -c ./config/unicorn.rb
	#-------------------------------------------------
	#./config/unicorn.rb file
	#-------------------------------------------------
	worker_processes 1
	timeout 30
	preload_app true
	before_fork do |server, worker|
	Signal.trap 'TERM' do
	puts 'Unicorn master intercepting TERM and sending myself QUIT instead'
	Process.kill 'QUIT', Process.pid
	end
	defined?(ActiveRecord::Base) and
	ActiveRecord::Base.connection.disconnect!
	end
	after_fork do |server, worker|
	Signal.trap 'TERM' do
	puts 'Unicorn worker intercepting TERM and doing nothing. Wait for master to sent QUIT'
	end
	defined?(ActiveRecord::Base) and
	ActiveRecord::Base.establish_connection
	end
	#make alias in ~/.profile start the server
	# alias rails_u="unicorn_rails --config-file config/unicorn.rb -p 3000"
	#I, [2013-08-02T21:54:02.553577 #57526] INFO -- : Refreshing Gem list
	#I, [2013-08-02T21:54:10.570714 #57526] INFO -- : listening on addr=0.0.0.0:3000 fd=9
	#I, [2013-08-02T21:54:10.617927 #57526] INFO -- : master process ready
	#I, [2013-08-02T21:54:10.627250 #57538] INFO -- : worker=0 ready

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The UNIX Philosophy Mike Gancarz:

	The UNIX Philosophy Mike Gancarz:
	In 1994 Mike Gancarz (a member of the team that designed the X Window System), drew on his own experience with Unix, as well as discussions with fellow programmers and people in other fields who depended on Unix, to produce The UNIX Philosophy which sums it up in 9 paramount precepts:
	Small is beautiful.
	Make each program do one thing well.
	Build a prototype as soon as possible.
	Choose portability over efficiency.
	Store data in flat text files.
	Use software leverage to your advantage.
	Use shell scripts to increase leverage and portability.
	Avoid captive user interfaces.
	Make every program a filter.

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skip_before_filter :verify_authenticity_token

	class ApplicationController < ActionController::Base
	# Prevent CSRF attacks by raising an exception.
	# For APIs, you may want to use :null_session instead.
	protect_from_forgery with: :exception
	end
	module Api
	module V1
	class AppsController < ApplicationController
	skip_before_filter :verify_authenticity_token, :only => [:update_attr]
	respond_to :json

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