| def per_page_select(collection, name=nil, value=nil, options={}) | |
| unless collection.empty? | |
| per_page = collection.first.class.per_page | |
| name = name || 'per_page' | |
| value = value || params[:per_page] || per_page.to_s | |
| before = options[:before_default] || ["#{per_page/2}"] | |
| after = options[:after_default] || ["#{per_page*2}"] | |
| choices = options_for_select(before + ["#{per_page}"] + after, value) | |
| select_tag name, choices, options | |
| end |
| require 'selenium-webdriver' | |
| # | |
| # Read more about LoadableComponent here: | |
| # | |
| # http://code.google.com/p/selenium/wiki/LoadableComponent | |
| # | |
| class LoadableComponent | |
| attr_reader :driver |
| require 'rubygems' | |
| require 'selenium-webdriver' | |
| path = File.expand_path("test.html") | |
| File.open(path, "w") { |io| io << DATA.read } | |
| browser = Selenium::WebDriver.for :firefox # replace :firefox with the browser you're having trouble with | |
| begin | |
| browser.get "file://#{path}" |
| sudo cp nginx /etc/init.d/ | |
| sudo update-rc.d nginx defaults | |
| sudo chmod +x /etc/init.d/nginx | |
| /etc/init.d/nginx start |
| # Because we have some old legacy users in the database, we need to override Devises method for checking if a password is valid. | |
| # We first ask Devise if the password is valid, and if it throws an InvalidHash exception, we know that we're dealing with a | |
| # legacy user, so we check the password against the SHA1 algorithm that was used to hash the password in the old database. | |
| #SOURCES OF SOLUTION: | |
| # http://stackoverflow.com/questions/6113375/converting-existing-password-hash-to-devise | |
| # https://github.com/binarylogic/authlogic/blob/master/lib/authlogic/crypto_providers/sha512.rb | |
| # https://github.com/plataformatec/devise/blob/master/lib/devise/encryptors/authlogic_sha512.rb | |
| alias :devise_valid_password? :valid_password? | |
| def valid_password?(password) |
| Jbuilder.encode do |json| | |
| json.content format_content(@message.content) | |
| json.(@message, :created_at, :updated_at) | |
| json.author do |json| | |
| json.name @message.creator.name.familiar | |
| json.email_address @message.creator.email_address_with_name | |
| json.url url_for(@message.creator, format: :json) | |
| end |
| def do_something | |
| yield 'something' | |
| end | |
| do_something do |thing| | |
| puts thing | |
| end | |
| def do_complex(first, second) | |
| thing = 'nothing' |
| # -*- encoding : utf-8 -*- | |
| set :assets_dependencies, %w(app/assets lib/assets vendor/assets Gemfile.lock config/routes.rb) | |
| namespace :deploy do | |
| namespace :assets do | |
| desc <<-DESC | |
| Run the asset precompilation rake task. You can specify the full path \ | |
| to the rake executable by setting the rake variable. You can also \ |
Введение
Начать стоит отсюда. Не пугайтесь то, что это книга по незнакомой OS, эти термины практически везде одинаковые и здесь они изложены в понятной для начинающих форме.
http://www.qnx.com/developers/docs/6.4.1/neutrino/getting_started/s1_procs.html
Прочесть нужно треть главы до подраздела "Starting a process", если С не пугает, читайте полностью. После прочтения вы будете понимать, что такое process, thread, mutex, priorites, semaphores, scheduler, contex-switch, kernel states.
Ruby
