ruby-on-rails - Rails 希望我在每次更改时重新启动？

Question

我的 View 按预期工作；每次我更改某些内容时，它都会立即反射(reflect)在页面上。但是每次我在controller、model 或config 中进行更改时，我都必须重新启动服务器才能显示。

我用 rails s -e development 启动我的服务器，它说明了这一点:

  => Booting Puma
  => Rails 4.1.8 application starting in development on http://0.0.0.0:3000
  => Run `rails server -h` for more startup options
  => Notice: server is listening on all interfaces (0.0.0.0). Consider using 127.0.0.1 (--binding option)
  => Ctrl-C to shutdown server

我的 config/environments/development.rb 看起来像这样:

  # -*- encoding : utf-8 -*-
  Gvm::Application.configure do
  # Settings specified here will take precedence over those in config/application.rb.

  # In the development environment your application's code is reloaded on
  # every request. This slows down response time but is perfect for development
  # since you don't have to restart the web server when you make code changes.
  config.cache_classes = true

  # Do not eager load code on boot.
  config.eager_load = false

  config.action_mailer.delivery_method = :smtp
  config.action_mailer.smtp_settings = {
  :address => "smtp.gmail.com",
  :port => 587,
  :domain => 'gmail.com',
  :user_name => '...',
  :password => '...',
  :authentication => 'plain',
  :enable_starttls_auto => true
  }

  config.action_mailer.default_url_options = { :host => "localhost:3000" }
  # Para debug apenas, é melhor que a linha abaixo seja adicionado apenas no ambiente de desenvolvimento
  config.action_mailer.raise_delivery_errors = true


  # Show full error reports and disable caching.
  config.consider_all_requests_local = true
  config.action_controller.perform_caching = false

  # Don't care if the mailer can't send.
  config.action_mailer.raise_delivery_errors = false

  # Print deprecation notices to the Rails logger.
  config.active_support.deprecation = :log

  # Raise an error on page load if there are pending migrations
  config.active_record.migration_error = :page_load

  # Debug mode disables concatenation and preprocessing of assets.
  # This option may cause significant delays in view rendering with a large
  # number of complex assets.
  config.assets.debug = true

  end

关于为什么每次更改后我仍然必须重新启动它有什么想法吗？

---

结论(无解):

最后，它 seems 这是一个 rails 和已安装的分区错误。我的 Vagrant VirtualBox VM 安装了一个共享文件夹，这样做时，rails 无法正确处理 guest 和主机之间的时间同步。

虽然我没有正确确认这个问题，但它可以解释最初的问题。

Answer 1

请将此行添加到您的 development.rb 文件中。它对我有用。

config.reload_classes_only_on_change = false

注意:使用 VirtualBox 设置我们有一个众所周知的问题:rails issue track

解决方案:由于 Rails 4 中的一些变化，您需要在主机和客户端之间同步时间。