ActionView :: Mẫu :: Lỗi: mã thông báo không mong muốn tại '{{2 + 2}}'

Question

Tôi đang gặp sự cố khi tích hợp các kiểm tra JS vào ứng dụng đường ray/góc của tôi. Đặc biệt, thiết lập thử nghiệm của tôi đang nghẹt thở vào lần xuất hiện thứ 8 và cuối cùng của {{handlebars}} trong tệp html này và tôi không thể tìm ra điều gì đặc biệt về sự xuất hiện này.

Các lỗi vấn đề đi kèm với dòng 784 của _form.html.erb:

<textarea class="figures_json col-lg-11 col-md-10 col-xs-9" readonly="readonly" name="dance[figures_json]" id="dance_figures_json"> 
{{2+2}}</textarea> 

Và lỗi là thế này:

dm@red:~/contra$ rspec ./spec/features/dances/create_spec.rb:7 
Run options: include {:locations=>{"./spec/features/dances/create_spec.rb"=>[7]}} 
F 

Failures: 

    1) Creating dances creates a new dance with non-javascript data 
    Failure/Error: JSON.parse figures_json 

    ActionView::Template::Error: 
     784: unexpected token at '{{2+2}}' 
    # ./app/models/dance.rb:10:in `figures' 
    # ./app/views/dances/_bodyshow.html.erb:6:in `_app_views_dances__bodyshow_html_erb__2235413439078114529_46217560' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/actionview-4.2.3/lib/action_view/template.rb:145:in `block in render' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/activesupport-4.2.3/lib/active_support/notifications.rb:166:in `instrument' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/actionview-4.2.3/lib/action_view/template.rb:333:in `instrument' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/actionview-4.2.3/lib/action_view/template.rb:143:in `render' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/actionview-4.2.3/lib/action_view/renderer/partial_renderer.rb:339:in `render_partial' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/actionview-4.2.3/lib/action_view/renderer/partial_renderer.rb:310:in `block in render' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/actionview-4.2.3/lib/action_view/renderer/abstract_renderer.rb:39:in `block in instrument' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/activesupport-4.2.3/lib/active_support/notifications.rb:164:in `block in instrument' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/activesupport-4.2.3/lib/active_support/notifications/instrumenter.rb:20:in `instrument' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/activesupport-4.2.3/lib/active_support/notifications.rb:164:in `instrument' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/actionview-4.2.3/lib/action_view/renderer/abstract_renderer.rb:39:in `instrument' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/actionview-4.2.3/lib/action_view/renderer/partial_renderer.rb:309:in `render' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/actionview-4.2.3/lib/action_view/renderer/renderer.rb:47:in `render_partial' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/actionview-4.2.3/lib/action_view/renderer/renderer.rb:21:in `render' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/actionview-4.2.3/lib/action_view/helpers/rendering_helper.rb:32:in `render' 
    # ./app/views/dances/show.html.erb:16:in `_app_views_dances_show_html_erb__1493296941766923553_47454680' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/actionview-4.2.3/lib/action_view/template.rb:145:in `block in render' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/activesupport-4.2.3/lib/active_support/notifications.rb:166:in `instrument' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/actionview-4.2.3/lib/action_view/template.rb:333:in `instrument' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/actionview-4.2.3/lib/action_view/template.rb:143:in `render' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/actionview-4.2.3/lib/action_view/renderer/template_renderer.rb:54:in `block (2 levels) in render_template' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/actionview-4.2.3/lib/action_view/renderer/abstract_renderer.rb:39:in `block in instrument' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/activesupport-4.2.3/lib/active_support/notifications.rb:164:in `block in instrument' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/activesupport-4.2.3/lib/active_support/notifications/instrumenter.rb:20:in `instrument' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/activesupport-4.2.3/lib/active_support/notifications.rb:164:in `instrument' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/actionview-4.2.3/lib/action_view/renderer/abstract_renderer.rb:39:in `instrument' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/actionview-4.2.3/lib/action_view/renderer/template_renderer.rb:53:in `block in render_template' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/actionview-4.2.3/lib/action_view/renderer/template_renderer.rb:61:in `render_with_layout' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/actionview-4.2.3/lib/action_view/renderer/template_renderer.rb:52:in `render_template' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/actionview-4.2.3/lib/action_view/renderer/template_renderer.rb:14:in `render' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/actionview-4.2.3/lib/action_view/renderer/renderer.rb:42:in `render_template' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/actionview-4.2.3/lib/action_view/renderer/renderer.rb:23:in `render' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/actionview-4.2.3/lib/action_view/rendering.rb:100:in `_render_template' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/actionpack-4.2.3/lib/action_controller/metal/streaming.rb:217:in `_render_template' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/actionview-4.2.3/lib/action_view/rendering.rb:83:in `render_to_body' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/actionpack-4.2.3/lib/action_controller/metal/rendering.rb:32:in `render_to_body' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/actionpack-4.2.3/lib/action_controller/metal/renderers.rb:37:in `render_to_body' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/actionpack-4.2.3/lib/abstract_controller/rendering.rb:25:in `render' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/actionpack-4.2.3/lib/action_controller/metal/rendering.rb:16:in `render' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/actionpack-4.2.3/lib/action_controller/metal/instrumentation.rb:44:in `block (2 levels) in render' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/activesupport-4.2.3/lib/active_support/core_ext/benchmark.rb:12:in `block in ms' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/activesupport-4.2.3/lib/active_support/core_ext/benchmark.rb:12:in `ms' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/actionpack-4.2.3/lib/action_controller/metal/instrumentation.rb:44:in `block in render' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/actionpack-4.2.3/lib/action_controller/metal/instrumentation.rb:87:in `cleanup_view_runtime' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/activerecord-4.2.3/lib/active_record/railties/controller_runtime.rb:25:in `cleanup_view_runtime' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/actionpack-4.2.3/lib/action_controller/metal/instrumentation.rb:43:in `render' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/actionpack-4.2.3/lib/action_controller/metal/implicit_render.rb:10:in `default_render' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/actionpack-4.2.3/lib/action_controller/metal/implicit_render.rb:5:in `send_action' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/actionpack-4.2.3/lib/abstract_controller/base.rb:198:in `process_action' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/actionpack-4.2.3/lib/action_controller/metal/rendering.rb:10:in `process_action' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/actionpack-4.2.3/lib/abstract_controller/callbacks.rb:20:in `block in process_action' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/activesupport-4.2.3/lib/active_support/callbacks.rb:115:in `call' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/activesupport-4.2.3/lib/active_support/callbacks.rb:553:in `block (2 levels) in compile' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/activesupport-4.2.3/lib/active_support/callbacks.rb:503:in `call' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/activesupport-4.2.3/lib/active_support/callbacks.rb:88:in `run_callbacks' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/actionpack-4.2.3/lib/abstract_controller/callbacks.rb:19:in `process_action' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/actionpack-4.2.3/lib/action_controller/metal/rescue.rb:29:in `process_action' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/actionpack-4.2.3/lib/action_controller/metal/instrumentation.rb:32:in `block in process_action' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/activesupport-4.2.3/lib/active_support/notifications.rb:164:in `block in instrument' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/activesupport-4.2.3/lib/active_support/notifications/instrumenter.rb:20:in `instrument' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/activesupport-4.2.3/lib/active_support/notifications.rb:164:in `instrument' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/actionpack-4.2.3/lib/action_controller/metal/instrumentation.rb:30:in `process_action' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/actionpack-4.2.3/lib/action_controller/metal/params_wrapper.rb:250:in `process_action' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/activerecord-4.2.3/lib/active_record/railties/controller_runtime.rb:18:in `process_action' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/actionpack-4.2.3/lib/abstract_controller/base.rb:137:in `process' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/actionview-4.2.3/lib/action_view/rendering.rb:30:in `process' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/actionpack-4.2.3/lib/action_controller/metal.rb:196:in `dispatch' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/actionpack-4.2.3/lib/action_controller/metal/rack_delegation.rb:13:in `dispatch' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/actionpack-4.2.3/lib/action_controller/metal.rb:237:in `block in action' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/actionpack-4.2.3/lib/action_dispatch/routing/route_set.rb:76:in `dispatch' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/actionpack-4.2.3/lib/action_dispatch/routing/route_set.rb:45:in `serve' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/actionpack-4.2.3/lib/action_dispatch/journey/router.rb:43:in `block in serve' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/actionpack-4.2.3/lib/action_dispatch/journey/router.rb:30:in `each' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/actionpack-4.2.3/lib/action_dispatch/journey/router.rb:30:in `serve' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/actionpack-4.2.3/lib/action_dispatch/routing/route_set.rb:821:in `call' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/warden-1.2.4/lib/warden/manager.rb:35:in `block in call' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/warden-1.2.4/lib/warden/manager.rb:34:in `catch' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/warden-1.2.4/lib/warden/manager.rb:34:in `call' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/rack-1.6.4/lib/rack/etag.rb:24:in `call' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/rack-1.6.4/lib/rack/conditionalget.rb:25:in `call' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/rack-1.6.4/lib/rack/head.rb:13:in `call' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/actionpack-4.2.3/lib/action_dispatch/middleware/params_parser.rb:27:in `call' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/actionpack-4.2.3/lib/action_dispatch/middleware/flash.rb:260:in `call' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/rack-1.6.4/lib/rack/session/abstract/id.rb:225:in `context' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/rack-1.6.4/lib/rack/session/abstract/id.rb:220:in `call' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/actionpack-4.2.3/lib/action_dispatch/middleware/cookies.rb:560:in `call' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/activerecord-4.2.3/lib/active_record/query_cache.rb:36:in `call' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/activerecord-4.2.3/lib/active_record/connection_adapters/abstract/connection_pool.rb:653:in `call' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/actionpack-4.2.3/lib/action_dispatch/middleware/callbacks.rb:29:in `block in call' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/activesupport-4.2.3/lib/active_support/callbacks.rb:84:in `run_callbacks' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/actionpack-4.2.3/lib/action_dispatch/middleware/callbacks.rb:27:in `call' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/actionpack-4.2.3/lib/action_dispatch/middleware/remote_ip.rb:78:in `call' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/actionpack-4.2.3/lib/action_dispatch/middleware/debug_exceptions.rb:17:in `call' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/web-console-2.2.1/lib/web_console/middleware.rb:39:in `call' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/actionpack-4.2.3/lib/action_dispatch/middleware/show_exceptions.rb:30:in `call' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/railties-4.2.3/lib/rails/rack/logger.rb:38:in `call_app' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/railties-4.2.3/lib/rails/rack/logger.rb:20:in `block in call' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/activesupport-4.2.3/lib/active_support/tagged_logging.rb:68:in `block in tagged' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/activesupport-4.2.3/lib/active_support/tagged_logging.rb:26:in `tagged' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/activesupport-4.2.3/lib/active_support/tagged_logging.rb:68:in `tagged' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/railties-4.2.3/lib/rails/rack/logger.rb:20:in `call' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/actionpack-4.2.3/lib/action_dispatch/middleware/request_id.rb:21:in `call' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/rack-1.6.4/lib/rack/methodoverride.rb:22:in `call' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/rack-1.6.4/lib/rack/runtime.rb:18:in `call' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/activesupport-4.2.3/lib/active_support/cache/strategy/local_cache_middleware.rb:28:in `call' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/rack-1.6.4/lib/rack/lock.rb:17:in `call' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/actionpack-4.2.3/lib/action_dispatch/middleware/static.rb:116:in `call' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/rack-1.6.4/lib/rack/sendfile.rb:113:in `call' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/railties-4.2.3/lib/rails/engine.rb:518:in `call' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/railties-4.2.3/lib/rails/application.rb:165:in `call' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/rack-1.6.4/lib/rack/urlmap.rb:66:in `block in call' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/rack-1.6.4/lib/rack/urlmap.rb:50:in `each' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/rack-1.6.4/lib/rack/urlmap.rb:50:in `call' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/capybara-2.7.1/lib/capybara/server.rb:43:in `call' 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/rack-1.6.4/lib/rack/handler/webrick.rb:88:in `service' 
    # ------------------ 
    # --- Caused by: --- 
    # Capybara::ExpectationNotMet: 
    # expected to find css "h1" with text "Call Me" but there were no matches. Also found "Internal Server Error", which matched the selector but not all filters. 
    # /home/dm/.rvm/gems/ruby-2.3.0/gems/capybara-2.7.1/lib/capybara/node/matchers.rb:128:in `block in assert_selector' 

Finished in 1.77 seconds (files took 1.59 seconds to load) 
1 example, 1 failure 

Failed examples: 

rspec ./spec/features/dances/create_spec.rb:7 # Creating dances creates a new dance with non-javascript data 

Dưới đây là một liên kết đến Gemfile.lock của tôi vì vậy bạn có thể xem những gì phiên bản thứ tôi m sử dụng.

Answer 1

Bạn có chắc chắn rằng sự cố xuất phát từ dòng 784 của _form.html.erb? Tôi không thể tìm thấy tệp này trong ngăn xếp cuộc gọi! Ngăn xếp cuộc gọi nêu rõ các cuộn cảm trên dance.rb#10 và có thể là figures_json chứa {{2+2}} không phải là JSON.

CẬP NHẬT

Tôi chỉ có một phút rảnh rỗi để tải & hãy nhìn những gì đang thực sự xảy ra trong ứng dụng. Khi bạn thực hiện hành động new, thực tế, hãy gửi hành động create qua JS và tạo Dance với giá trị {{2+2}} từ đó _form. Trong khi nó trông kỳ lạ với tôi (tại sao tạo ra trên chỉ new hành động?) Tôi tìm ra lý do - góc không đánh giá các biểu thức bên trong textarea, bạn cần phải ràng buộc nó vào ng-model. Vì vậy, bạn muốn viết lại văn bản đó như sau:

<textarea class="figures_json col-lg-11 col-md-10 col-xs-9" readonly="readonly" name="dance[figures_json]" id="dance_figures_json" ng-model="2+2">