skojin’s gists

skojin / v1

Created January 26, 2012 01:53

Get public IP address and copy to clipboard

curl -silent http://checkip.dyndns.org | grep -Eo '([0-9]{1,3}\.){3}[0-9]{1,3}' | pbcopy

skojin / navigation_helper.rb

Created November 15, 2011 14:40

Rails Helper to build 'active' links

	module NavigationHelper

	# get navigation 'active' css class if rule match
	def nav_class(match_rules)
	navigation_url_active?(nil, match_rules) ? 'active' : nil
	end

	# @param match_rules if :resource symbol, then match to url that starts withs specified url
	# @param match_rules if :same symbol, then match exactly to url
	# @param match_rules if hash {:controller, :action, :path, :method} and same yes with _not suffix (like :controller_not)

skojin / back_default_redirect.rb

Created July 13, 2011 14:09

replacement for redirect_to(:back) that works even if no referer (e.g. via direct url)

	# same as redirect_to(:back) but works even if no referer (e.g. via direct url)
	# include this module to ApplicationController
	module BackDefaultRedirect
	protected

	# use as redirect_to back_or_default(root_url)
	def back_or_default(default = '/')
	referer = request.env['HTTP_REFERER']
	# if has HTTP_REFERER and it not equals current url
	if referer && !referer.include?(request.request_uri)

skojin / testing.rake

Created May 10, 2011 16:33

set of rake tasks to run part of unit tests with less keyboard typing

	desc "Shortcut for functional tests"
	task :f => "test:functionals"

	desc "Shortcut for unit tests"
	task :u => "test:units"

	desc "Shortcut for integration tests"
	task :i => "test:integration"

	desc "Run unit and functional tests"

skojin / set_cookie_domain.rb

Created March 31, 2011 09:15

middleware to allow set rails session subdomain wide, need when application is mulity domain. tested on rails 2.3.5

	# hack to allow config.action_controller.session[:domain] option be not hardcoded
	# since our app have different first level domains
	# original solution found here: http://codetunes.com/2009/04/17/dynamic-cookie-domains-with-racks-middleware/
	class SetCookieDomain
	def initialize(app)
	@app = app
	end

	def call(env)
	# keep from custom.domain.com:3000, only domain.com

skojin / active_record_instantiate_logging.rb

Created March 30, 2011 12:31

Log time of model instantiate in addition to SQL execution time

	if Rails.logger.level = Logger::DEBUG
	ActiveRecord::Base.module_eval do
	class << self
	def find_by_sql_with_instantiate_logging(sql)
	message = connection.send(:format_log_entry, "#{name} Load+Instantiate")
	ActiveRecord::Base.benchmark(message, Logger::DEBUG, false) do
	find_by_sql_without_instantiate_logging(sql)
	end
	end

skojin / nginx.conf

Created February 16, 2011 14:33

nginx rails configuration, with assets expiration

	server {
	listen 80;
	server_name APP.com;
	rewrite ^/(.*) http://www.APP.com/$1 permanent;
	}

	server {
	listen 80;
	server_name www.APP.com;
	root /home/USER/sites/APP/current/public;

skojin / active_record_select_attributes_extension.rb

Created February 15, 2011 16:16

extend rails3 activerecord public interface with powerfull connection.select_value(s) method, put this file to config/initializers/

	module ActiveRecordSelectAttributesExtension
	def select_id(field = 'id')
	select_values(field)
	end

	def select_values(field = nil)
	scope = field ? self.scoped.select(field) : self.scoped
	connection.select_values(scope.to_sql)
	end

skojin / backup_my_gists.rb

Created February 6, 2011 12:12

script to backup my gists

	require 'json'
	require 'open-uri'

	gists = JSON.parse(open("http://gist.github.com/api/v1/json/gists/#{ENV['GIST_USER']}").read)['gists']

	repos = gists.map{\|g\| g['repo']}
	existing, new = repos.partition{\|r\| File.exists?(r)}
	new.each do \|r\|
	puts "clone new #{r} gist"
	`git clone git://gist.github.com/#{r}.git`

skojin / eval_javascript_in_parent_helper.rb

Created February 1, 2011 20:03

respond_to_parent as single helper withot respond_to, works with rails3

	# more simple version of https://github.com/itkin/respond_to_parent.git without dirty hacks that works good in rails3
	# usage:
	# in controller#create append render :layout => false
	# in create.html.erb
	# <%= eval_javascript_in_parent(<<EOF
	# $('#entries-list').prepend('#{escape_javascript(render @entry)}');
	# EOF
	# ) %>
	#
	# most source from https://github.com/itkin/respond_to_parent/blob/master/lib/responds_to_parent.rb

Sergey Kojin skojin