ruby-on-rails - Heroku 暂存站点上未显示新图像 Assets

Question

更新:我刚刚发现，只有当我 push 生产时，我的 Assets 才会出现在暂存中。

每当我添加新的图像 Assets 、预编译它们并部署到暂存区时，它们都不会出现。但是，一切都在本地和生产环境中运行。这是我的代码和添加新图像 Assets 时的过程。任何帮助，将不胜感激。我对此很陌生，一直在到处寻找答案。

staging.rb

Rails.application.configure do
  config.cache_classes = true
  config.eager_load = true
  config.consider_all_requests_local       = false
  config.action_controller.perform_caching = true
  config.action_mailer.default_url_options = { :host => 'http://site_name.herokuapp.com' }
  config.serve_static_files = ENV['RAILS_SERVE_STATIC_FILES'].present?
  config.assets.js_compressor = :uglifier
  config.assets.compile = false
  config.assets.digest = true
  config.log_level = :debug
  config.action_controller.asset_host = Proc.new { |source|
    if source =~ /\b(.png|.jpg|.gif|.svg)\b/i
      "http://key.cloudfront.net"
    end
  }
  config.i18n.fallbacks = true
  config.active_support.deprecation = :notify
  config.log_formatter = ::Logger::Formatter.new
  config.active_record.dump_schema_after_migration = false
end

我如何为暂存预编译我的 Assets

RAILS_ENV=staging bundle exec rake assets:precompile

我如何为生产预编译我的 Assets

RAILS_ENV=staging bundle exec rake assets:precompile

application.rb

require File.expand_path('../boot', __FILE__)

require 'rails/all'

# Require the gems listed in Gemfile, including any gems
# you've limited to :test, :development, or :production.
Bundler.require(*Rails.groups)

module InfoSite
  class Application < Rails::Application
    # Settings in config/environments/* take precedence over those     specified here.
    # Application configuration should go into files in   config/initializers
    # -- all .rb files in that directory are automatically loaded.

    # Set Time.zone default to the specified zone and make Active   Record auto-convert to this zone.
    # Run "rake -D time" for a list of tasks for finding time zone   names. Default is UTC.
    # config.time_zone = 'Central Time (US & Canada)'

    config.serve_static_files = true
    config.assets.compile = true
    config.assets.configure do |env|
      if Rails.env.development? || Rails.env.test?
        env.cache = ActiveSupport::Cache.lookup_store(:memory_store)
      end
  end
    # The default locale is :en and all translations from     config/locales/*.rb,yml are auto loaded.
    # config.i18n.load_path += Dir[Rails.root.join('my', 'locales', '*. {rb,yml}').to_s]
    # config.i18n.default_locale = :de

    # Do not swallow errors in after_commit/after_rollback callbacks.
    config.active_record.raise_in_transactional_callbacks = true
  end
end

我添加图像 Assets 的过程:

1. 将图片放在 app/assets/images 中
2. 在布局中使用它(使用 Assets 管道:= image_tag 'image.png')
3. 在本地检查(一切正常)
4. 使用 RAILS_ENV=staging bundle exec rake assets:precompile
5. 使用 RAILS_ENV=production bundle exec rake assets:precompile
6. 检查github，所有 Assets 都更新了，我可以看到它们已经预编译
7. git push 暂存大师

现在，如果我查看暂存， Assets 会返回一个显示图像名称的空图像框。

我的流程中是否遗漏了什么？我应该对此采取不同的方法吗？

Answer 1

转到 config/application.rb。查找字符串 config.assets.enabled 并将值设置为“true”。或者 config.assets.initialize_on_precompile 并设置为 true。