【发布时间】：2015-04-30 18:03:00
【问题描述】：
我想从我的布局文件（例如 application.html.erb ）中的 bootstrap-sass gem 加载 bootstrap-sprockets，而不是在 application.scss 中。通常建议将bootstrap 和bootstrap-sprockets 放在application.scss 中，如下所示：
@import "bootstrap-sprockets";
@import "bootstrap";
然后像这样加载到您的application.scss：
<%= stylesheet_link_tag 'application', media: 'all', 'data-turbolinks-track' => true %>
我想像这样加载它们：
<%= stylesheet_link_tag 'application', media: 'all', 'data-turbolinks-track' => true %>
<%= javascript_include_tag 'application', 'data-turbolinks-track' => true %>
<%= stylesheet_link_tag 'bootstrap-sprockets', 'data-turbolinks-track' => true %>
<%= stylesheet_link_tag 'bootstrap', 'data-turbolinks-track' => true %>
这样我就可以根据某些应用程序变量在 erb 中加载它们。例如使用 bootswatch 和一个实例变量：
<%= stylesheet_link_tag 'application', media: 'all', 'data-turbolinks-track' => true %>
<%= javascript_include_tag 'application', 'data-turbolinks-track' => true %>
<%= stylesheet_link_tag 'bootstrap-sprockets', 'data-turbolinks-track' => true %>
<%= stylesheet_link_tag 'bootswatch/'+ @account.style.name.downcase + '/variables', 'data-turbolinks-track' => true %>
<%= stylesheet_link_tag 'bootstrap', 'data-turbolinks-track' => true %>
尽管我在以这种方式加载这些资产时不断收到RoutingError，即使我在assets.rb 的预编译资产中拥有它，就像这样Rails.application.config.assets.precompile += %w( bootstrap-sprockets )
Started GET "/stylesheets/bootstrap-sprockets.css" for 127.0.0.1 at 2015-04-30 13:44:44 -0400
ActionController::RoutingError (No route matches [GET] "/stylesheets/bootstrap-sprockets.css"):
actionpack (4.2.1) lib/action_dispatch/middleware/debug_exceptions.rb:21:in `call'
web-console (2.1.2) lib/web_console/middleware.rb:37:in `call'
actionpack (4.2.1) lib/action_dispatch/middleware/show_exceptions.rb:30:in `call'
railties (4.2.1) lib/rails/rack/logger.rb:38:in `call_app'
railties (4.2.1) lib/rails/rack/logger.rb:20:in `block in call'
activesupport (4.2.1) lib/active_support/tagged_logging.rb:68:in `block in tagged'
activesupport (4.2.1) lib/active_support/tagged_logging.rb:26:in `tagged'
activesupport (4.2.1) lib/active_support/tagged_logging.rb:68:in `tagged'
railties (4.2.1) lib/rails/rack/logger.rb:20:in `call'
actionpack (4.2.1) lib/action_dispatch/middleware/request_id.rb:21:in `call'
rack (1.6.0) lib/rack/methodoverride.rb:22:in `call'
rack (1.6.0) lib/rack/runtime.rb:18:in `call'
activesupport (4.2.1) lib/active_support/cache/strategy/local_cache_middleware.rb:28:in `call'
rack (1.6.0) lib/rack/lock.rb:17:in `call'
actionpack (4.2.1) lib/action_dispatch/middleware/static.rb:113:in `call'
rack (1.6.0) lib/rack/sendfile.rb:113:in `call'
railties (4.2.1) lib/rails/engine.rb:518:in `call'
railties (4.2.1) lib/rails/application.rb:164:in `call'
rack (1.6.0) lib/rack/content_length.rb:15:in `call'
thin (1.6.3) lib/thin/connection.rb:86:in `block in pre_process'
thin (1.6.3) lib/thin/connection.rb:84:in `catch'
thin (1.6.3) lib/thin/connection.rb:84:in `pre_process'
thin (1.6.3) lib/thin/connection.rb:53:in `process'
thin (1.6.3) lib/thin/connection.rb:39:in `receive_data'
eventmachine (1.0.7) lib/eventmachine.rb:187:in `run_machine'
eventmachine (1.0.7) lib/eventmachine.rb:187:in `run'
thin (1.6.3) lib/thin/backends/base.rb:73:in `start'
thin (1.6.3) lib/thin/server.rb:162:in `start'
rack (1.6.0) lib/rack/handler/thin.rb:19:in `run'
rack (1.6.0) lib/rack/server.rb:286:in `start'
railties (4.2.1) lib/rails/commands/server.rb:80:in `start'
railties (4.2.1) lib/rails/commands/commands_tasks.rb:80:in `block in server'
railties (4.2.1) lib/rails/commands/commands_tasks.rb:75:in `tap'
railties (4.2.1) lib/rails/commands/commands_tasks.rb:75:in `server'
railties (4.2.1) lib/rails/commands/commands_tasks.rb:39:in `run_command!'
railties (4.2.1) lib/rails/commands.rb:17:in `<top (required)>'
bin/rails:8:in `require'
bin/rails:8:in `<top (required)>'
spring (1.3.4) lib/spring/client/rails.rb:28:in `load'
spring (1.3.4) lib/spring/client/rails.rb:28:in `call'
spring (1.3.4) lib/spring/client/command.rb:7:in `call'
spring (1.3.4) lib/spring/client.rb:26:in `run'
spring (1.3.4) bin/spring:48:in `<top (required)>'
spring (1.3.4) lib/spring/binstub.rb:11:in `load'
spring (1.3.4) lib/spring/binstub.rb:11:in `<top (required)>'
/Users/cj/.rbenv/versions/2.2.0/lib/ruby/2.2.0/rubygems/core_ext/kernel_require.rb:54:in `require'
/Users/cj/.rbenv/versions/2.2.0/lib/ruby/2.2.0/rubygems/core_ext/kernel_require.rb:54:in `require'
bin/spring:13:in `<top (required)>'
bin/rails:3:in `load'
bin/rails:3:in `<top (required)>'
-e:1:in `load'
-e:1:in `<main>'
如何让这些资产从 gem 中正确加载？
【问题讨论】：
标签： css ruby-on-rails twitter-bootstrap