wicked_pdf_stylesheet_link_tag 'application' 抛出 404 错误

Question

我在使用 wicked_pdf 时遇到了一个奇怪的错误。

我的 mac 从未遇到过同样的问题， 但是在我的生产 centos 6.6 vps 上，它抛出 404 错误 在线：

wicked_pdf_stylesheet_link_tag 'application' 

我正在使用

gem 'rails', '4.1.6'
gem 'wkhtmltopdf-binary'
gem 'wicked_pdf', '~> 0.11.0'

我尝试将 application.css.scss 或 application.css 添加到 initializer/assets.rb

Rails.application.config.assets.version = '1.1'
# Precompile additional assets.
# application.js, application.css, and all non-JS/CSS in app/assets folder are already added.
# Rails.application.config.assets.precompile += %w( search.js )

Rails.application.config.assets.precompile += %w(*.svg *.eot *.woff *.ttf *.gif *.png *.ico)
Rails.application.config.assets.precompile += %w(application.css *.js *.css *.js.coffee)

但还是不行，

有人知道可以做什么吗？

在我的 ubuntu 14 服务器上用作开发 machine，

wicked_pdf_image_tag object.file1.file.path 

似乎导致 pdf 生成器挂起。

我已经评论了它，它有效。我已经检查过路径是否正确。

image_tag helper 也会出现此问题，但在以 html 格式显示时工作正常。

完整跟踪显示：

/usr/local/rvm/rubies/ruby-2.1.5/lib/ruby/2.1.0/open-uri.rb:353:in open_http' /usr/local/rvm/rubies/ruby-2.1.5/lib/ruby/2.1.0/open-uri.rb:724:in buffer_open' /usr/local/rvm/rubies/ruby-2.1.5/lib/ruby/2.1.0/open-uri.rb:210:in block in open_loop' /usr/local/rvm/rubies/ruby-2.1.5/lib/ruby/2.1.0/open-uri.rb:208:in catch' /usr/local/rvm/rubies/ruby-2.1.5/lib/ruby/2.1.0/open-uri.rb:208:in open_loop' /usr/local/rvm/rubies/ruby-2.1.5/lib/ruby/2.1.0/open-uri.rb:149:in open_uri' /usr/local/rvm/rubies/ruby-2.1.5/lib/ruby/2.1.0/open-uri.rb:704:in open' /usr/local/rvm/rubies/ruby-2.1.5/lib/ruby/2.1.0/open-uri.rb:34:in open' wicked_pdf (0.11.0) lib/wicked_pdf/wicked_pdf_helper.rb:111:in read_from_uri' wicked_pdf (0.11.0) lib/wicked_pdf/wicked_pdf_helper.rb:100:inread_asset' wicked_pdf (0.11.0) lib/wicked_pdf/wicked_pdf_helper.rb:40:in block in wicked_pdf_stylesheet_link_tag' wicked_pdf (0.11.0) lib/wicked_pdf/wicked_pdf_helper.rb:38:incollect' wicked_pdf (0.11.0) lib/wicked_pdf/wicked_pdf_helper.rb:38:in wicked_pdf_stylesheet_link_tag' app/views/layouts/pdf.html.slim:5:in _app_views_layouts_pdf_html_slim___1321156534865974876_43089880' actionview (4.1.6) lib/action_view/template.rb:145:in block in render' activesupport (4.1.6) lib/active_support/notifications.rb:161:ininstrument' actionview (4.1.6) lib/action_view/template.rb:339:in instrument' actionview (4.1.6) lib/action_view/template.rb:143:inrender' actionview (4.1.6) lib/action_view/renderer/template_renderer.rb:67:in render_with_layout' actionview (4.1.6) lib/action_view/renderer/template_renderer.rb:53:inrender_template' actionview (4.1.6) lib/action_view/renderer/template_renderer.rb:17:in render' actionview (4.1.6) lib/action_view/renderer/renderer.rb:42:in render_template' actionview (4.1.6) lib/action_view/renderer/renderer.rb:23:in render' actionview (4.1.6) lib/action_view/rendering.rb:99:in_render_template' actionpack (4.1.6) lib/action_controller/metal/streaming.rb:217:in _render_template' actionview (4.1.6) lib/action_view/rendering.rb:82:inrender_to_body' actionpack (4.1.6) lib/action_controller/metal/rendering.rb:32:in render_to_body' actionpack (4.1.6) lib/action_controller/metal/renderers.rb:32:in render_to_body' actionpack (4.1.6) lib/abstract_controller/rendering.rb:43:in render_to_string' actionpack (4.1.6) lib/action_controller/metal/rendering.rb:21:in render_to_string' wicked_pdf (0.11.0) lib/wicked_pdf/pdf_helper.rb:34:in render_to_string_with_wicked_pdf' wicked_pdf (0.11.0) lib/wicked_pdf/pdf_helper.rb:61:inmake_pdf' wicked_pdf (0.11.0) lib/wicked_pdf/pdf_helper.rb:32:in render_to_string_with_wicked_pdf' app/controllers/concerns/has_pdf_response.rb:15:inrespond_to_pdf' app/controllers/quotations_controller.rb:23:in block (2 levels) in show' actionpack (4.1.6) lib/action_controller/metal/mime_responds.rb:258:incall' actionpack (4.1.6) lib/action_controller/metal/mime_responds.rb:258:in respond_to' app/controllers/quotations_controller.rb:20:inshow' actionpack (4.1.6) lib/action_controller/metal/implicit_render.rb:4:in send_action' actionpack (4.1.6) lib/abstract_controller/base.rb:189:inprocess_action' actionpack (4.1.6) lib/action_controller/metal/rendering.rb:10:in process_action' actionpack (4.1.6) lib/abstract_controller/callbacks.rb:20:inblock in process_action' activesupport (4.1.6) lib/active_support/callbacks.rb:113:in call' activesupport (4.1.6) lib/active_support/callbacks.rb:113:incall' activesupport (4.1.6) lib/active_support/callbacks.rb:166:in block in halting' activesupport (4.1.6) lib/active_support/callbacks.rb:166:in call' activesupport (4.1.6) lib/active_support/callbacks.rb:166:in block in halting' activesupport (4.1.6) lib/active_support/callbacks.rb:149:incall' activesupport (4.1.6) lib/active_support/callbacks.rb:149:in block in halting_and_conditional' activesupport (4.1.6) lib/active_support/callbacks.rb:229:incall' activesupport (4.1.6) lib/active_support/callbacks.rb:229:in block in halting' activesupport (4.1.6) lib/active_support/callbacks.rb:229:incall' activesupport (4.1.6) lib/active_support/callbacks.rb:229:in block in halting' activesupport (4.1.6) lib/active_support/callbacks.rb:166:in call' activesupport (4.1.6) lib/active_support/callbacks.rb:166:in block in halting' activesupport (4.1.6) lib/active_support/callbacks.rb:166:incall' activesupport (4.1.6) lib/active_support/callbacks.rb:166:in block in halting' activesupport (4.1.6) lib/active_support/callbacks.rb:166:incall' activesupport (4.1.6) lib/active_support/callbacks.rb:166:in block in halting' activesupport (4.1.6) lib/active_support/callbacks.rb:229:in call' activesupport (4.1.6) lib/active_support/callbacks.rb:229:in block in halting' activesupport (4.1.6) lib/active_support/callbacks.rb:166:incall' activesupport (4.1.6) lib/active_support/callbacks.rb:166:in block in halting' activesupport (4.1.6) lib/active_support/callbacks.rb:166:incall' activesupport (4.1.6) lib/active_support/callbacks.rb:166:in block in halting' activesupport (4.1.6) lib/active_support/callbacks.rb:229:in call' activesupport (4.1.6) lib/active_support/callbacks.rb:229:in block in halting' activesupport (4.1.6) lib/active_support/callbacks.rb:166:incall' activesupport (4.1.6) lib/active_support/callbacks.rb:166:in block in halting' activesupport (4.1.6) lib/active_support/callbacks.rb:166:incall' activesupport (4.1.6) lib/active_support/callbacks.rb:166:in block in halting' activesupport (4.1.6) lib/active_support/callbacks.rb:166:in call' activesupport (4.1.6) lib/active_support/callbacks.rb:166:in block in halting' activesupport (4.1.6) lib/active_support/callbacks.rb:166:incall' activesupport (4.1.6) lib/active_support/callbacks.rb:166:in block in halting' activesupport (4.1.6) lib/active_support/callbacks.rb:86:incall' activesupport (4.1.6) lib/active_support/callbacks.rb:86:in run_callbacks' actionpack (4.1.6) lib/abstract_controller/callbacks.rb:19:inprocess_action' actionpack (4.1.6) lib/action_controller/metal/rescue.rb:29:in process_action' actionpack (4.1.6) lib/action_controller/metal/instrumentation.rb:31:inblock in process_action' activesupport (4.1.6) lib/active_support/notifications.rb:159:in block in instrument' activesupport (4.1.6) lib/active_support/notifications/instrumenter.rb:20:ininstrument' activesupport (4.1.6) lib/active_support/notifications.rb:159:in instrument' actionpack (4.1.6) lib/action_controller/metal/instrumentation.rb:30:inprocess_action' actionpack (4.1.6) lib/action_controller/metal/params_wrapper.rb:250:in process_action' activerecord (4.1.6) lib/active_record/railties/controller_runtime.rb:18:in process_action' actionpack (4.1.6) lib/abstract_controller/base.rb:136:in process' actionview (4.1.6) lib/action_view/rendering.rb:30:inprocess' actionpack (4.1.6) lib/action_controller/metal.rb:196:in dispatch' actionpack (4.1.6) lib/action_controller/metal/rack_delegation.rb:13:indispatch' actionpack (4.1.6) lib/action_controller/metal.rb:232:in block in action' actionpack (4.1.6) lib/action_dispatch/routing/route_set.rb:82:incall' actionpack (4.1.6) lib/action_dispatch/routing/route_set.rb:82:in dispatch' actionpack (4.1.6) lib/action_dispatch/routing/route_set.rb:50:in call' actionpack (4.1.6) lib/action_dispatch/journey/router.rb:73:in block in call' actionpack (4.1.6) lib/action_dispatch/journey/router.rb:59:ineach' actionpack (4.1.6) lib/action_dispatch/journey/router.rb:59:in call' actionpack (4.1.6) lib/action_dispatch/routing/route_set.rb:678:incall' rack-pjax (0.8.0) lib/rack/pjax.rb:12:in call' warden (1.2.3) lib/warden/manager.rb:35:inblock in call' warden (1.2.3) lib/warden/manager.rb:34:in catch' warden (1.2.3) lib/warden/manager.rb:34:incall' rack (1.5.2) lib/rack/etag.rb:23:in call' rack (1.5.2) lib/rack/conditionalget.rb:25:incall' rack (1.5.2) lib/rack/head.rb:11:in call' remotipart (1.2.1) lib/remotipart/middleware.rb:27:incall' actionpack (4.1.6) lib/action_dispatch/middleware/params_parser.rb:27:in call' actionpack (4.1.6) lib/action_dispatch/middleware/flash.rb:254:in call' rack (1.5.2) lib/rack/session/abstract/id.rb:225:in context' rack (1.5.2) lib/rack/session/abstract/id.rb:220:incall' actionpack (4.1.6) lib/action_dispatch/middleware/cookies.rb:560:in call' activerecord (4.1.6) lib/active_record/query_cache.rb:36:incall' activerecord (4.1.6) lib/active_record/connection_adapters/abstract/connection_pool.rb:621:in call' actionpack (4.1.6) lib/action_dispatch/middleware/callbacks.rb:29:inblock in call' activesupport (4.1.6) lib/active_support/callbacks.rb:82:in run_callbacks' actionpack (4.1.6) lib/action_dispatch/middleware/callbacks.rb:27:incall' actionpack (4.1.6) lib/action_dispatch/middleware/reloader.rb:73:in call' actionpack (4.1.6) lib/action_dispatch/middleware/remote_ip.rb:76:in call' actionpack (4.1.6) lib/action_dispatch/middleware/debug_exceptions.rb:17:in call' actionpack (4.1.6) lib/action_dispatch/middleware/show_exceptions.rb:30:incall' railties (4.1.6) lib/rails/rack/logger.rb:38:in call_app' railties (4.1.6) lib/rails/rack/logger.rb:20:inblock in call' activesupport (4.1.6) lib/active_support/tagged_logging.rb:68:in block in tagged' activesupport (4.1.6) lib/active_support/tagged_logging.rb:26:in tagged' activesupport (4.1.6) lib/active_support/tagged_logging.rb:68:in tagged' railties (4.1.6) lib/rails/rack/logger.rb:20:incall' actionpack (4.1.6) lib/action_dispatch/middleware/request_id.rb:21:in call' rack (1.5.2) lib/rack/methodoverride.rb:21:incall' rack (1.5.2) lib/rack/runtime.rb:17:in call' activesupport (4.1.6) lib/active_support/cache/strategy/local_cache_middleware.rb:26:in call' rack (1.5.2) lib/rack/lock.rb:17:in call' actionpack (4.1.6) lib/action_dispatch/middleware/static.rb:64:incall' rack (1.5.2) lib/rack/sendfile.rb:112:in call' railties (4.1.6) lib/rails/engine.rb:514:incall' railties (4.1.6) lib/rails/application.rb:144:in call' passenger (4.0.56) lib/phusion_passenger/rack/thread_handler_extension.rb:74:in process_request' passenger (4.0.56) lib/phusion_passenger/request_handler/thread_handler.rb:141:in accept_and_process_next_request' passenger (4.0.56) lib/phusion_passenger/request_handler/thread_handler.rb:109:in main_loop' passenger (4.0.56) lib/phusion_passenger/request_handler.rb:455:in `block (3 levels) in start_threads'

Answer 1

事实证明，当我调用时，我指向了我的图像的绝对路径 wicked_pdf_image_tag 该函数实际上指向 root_path.join('public', '图片')

解决方案是创建一个新方法或只使用此代码： image_tag "file://absolute_path_to_img_here"，选项

[http://www.rubydoc.info/github/mileszs/wicked_pdf/WickedPdfHelper%3Awicked_pdf_image_tag][1]