RailsとAjaxリクエスト：内部サーバーエラー（500）

Question

引数に応じて多くのコメントを表示しようとしています。私はAJAXを使用する必要がありますが、私はこのエラーがあります。ここでは

GET http://localhost:3000/rate_verified?verified=true 500 (Internal Server Error) 

はコードで、 school.html.erb（AJAXを呼び出すためのリンク）

<%= link_to "Vérifiés (#{@count_verified})", rate_verified_path(:verified => true), remote: true %> 

と地上子私は情報

<div role="tabpanel" class="tab-pane <%= 'active' if @school.is_subscribed? %>" id="verifie"> </div> 

routes.rbを

を表示したいです

get "/rate_verified" => 'schools#verified_rating', as: 'rate_verified' 

schools_controller.rb

$("#verifie").html("<%= escape_javascript(render partial: 'schools/rating', collection: @selected %>"); 

は、誰かが私を助けることができない（jqueryのを使用するために）（私はと呼ばれる方法）

def verified_rating 
    @selected = @ratings.where(:verified => true) 
    respond_to do |format| 
     format.js 
    end 
    end 

そして verified_rating.js.erb エラーの原因とその原因を理解する

EDIT：

ここでは私の端末でのログです：

Started GET "/rate_verified?verified=true" for 127.0.0.1 at 2017-01-23 17:19:25 +0100 
Processing by SchoolsController#verified_rating as JS 
    Parameters: {"verified"=>"true"} 
Completed 500 Internal Server Error in 1ms 
** [Raven] Event not sent due to excluded environment: development 

NoMethodError (undefined method `where' for nil:NilClass): 
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    actionpack (4.2.1) lib/action_controller/metal/rendering.rb:10:in `process_action' 
    actionpack (4.2.1) lib/abstract_controller/callbacks.rb:20:in `block in process_action' 
    activesupport (4.2.1) lib/active_support/callbacks.rb:117:in `call' 
    activesupport (4.2.1) lib/active_support/callbacks.rb:117:in `call' 
    activesupport (4.2.1) lib/active_support/callbacks.rb:555:in `block (2 levels) in compile' 
    activesupport (4.2.1) lib/active_support/callbacks.rb:505:in `call' 
    activesupport (4.2.1) lib/active_support/callbacks.rb:505:in `call' 
    activesupport (4.2.1) lib/active_support/callbacks.rb:92:in `_run_callbacks' 
    activesupport (4.2.1) lib/active_support/callbacks.rb:776:in `_run_process_action_callbacks' 
    activesupport (4.2.1) lib/active_support/callbacks.rb:81:in `run_callbacks' 
    actionpack (4.2.1) lib/abstract_controller/callbacks.rb:19:in `process_action' 
    actionpack (4.2.1) lib/action_controller/metal/rescue.rb:29:in `process_action' 
    actionpack (4.2.1) lib/action_controller/metal/instrumentation.rb:32:in `block in process_action' 
    activesupport (4.2.1) lib/active_support/notifications.rb:164:in `block in instrument' 
    activesupport (4.2.1) lib/active_support/notifications/instrumenter.rb:20:in `instrument' 
    activesupport (4.2.1) lib/active_support/notifications.rb:164:in `instrument' 
    actionpack (4.2.1) lib/action_controller/metal/instrumentation.rb:30:in `process_action' 
    actionpack (4.2.1) lib/action_controller/metal/params_wrapper.rb:250:in `process_action' 
    actionpack (4.2.1) lib/abstract_controller/base.rb:137:in `process' 
    actionview (4.2.1) lib/action_view/rendering.rb:30:in `process' 
    actionpack (4.2.1) lib/action_controller/metal.rb:196:in `dispatch' 
    actionpack (4.2.1) lib/action_controller/metal/rack_delegation.rb:13:in `dispatch' 
    actionpack (4.2.1) lib/action_controller/metal.rb:237:in `block in action' 
    actionpack (4.2.1) lib/action_dispatch/routing/route_set.rb:74:in `call' 
    actionpack (4.2.1) lib/action_dispatch/routing/route_set.rb:74:in `dispatch' 
    actionpack (4.2.1) lib/action_dispatch/routing/route_set.rb:43:in `serve' 
    actionpack (4.2.1) lib/action_dispatch/journey/router.rb:43:in `block in serve' 
    actionpack (4.2.1) lib/action_dispatch/journey/router.rb:30:in `each' 
    actionpack (4.2.1) lib/action_dispatch/journey/router.rb:30:in `serve' 
    actionpack (4.2.1) lib/action_dispatch/routing/route_set.rb:819:in `call' 
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    browser (0.6.0) lib/browser/middleware.rb:31:in `call' 
    newrelic_rpm (3.7.3.204) lib/new_relic/rack/error_collector.rb:55:in `call' 
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    newrelic_rpm (3.7.3.204) lib/new_relic/rack/browser_monitoring.rb:27:in `call' 
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    bullet (4.14.5) lib/bullet/rack.rb:10:in `call' 
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    actionpack (4.2.1) lib/action_dispatch/middleware/cookies.rb:560:in `call' 
    actionpack (4.2.1) lib/action_dispatch/middleware/callbacks.rb:29:in `block in call' 
    activesupport (4.2.1) lib/active_support/callbacks.rb:88:in `call' 
    activesupport (4.2.1) lib/active_support/callbacks.rb:88:in `_run_callbacks' 
    activesupport (4.2.1) lib/active_support/callbacks.rb:776:in `_run_call_callbacks' 
    activesupport (4.2.1) lib/active_support/callbacks.rb:81:in `run_callbacks' 
    actionpack (4.2.1) lib/action_dispatch/middleware/callbacks.rb:27:in `call' 
    actionpack (4.2.1) lib/action_dispatch/middleware/reloader.rb:73:in `call' 
    actionpack (4.2.1) lib/action_dispatch/middleware/remote_ip.rb:78:in `call' 
    actionpack (4.2.1) lib/action_dispatch/middleware/debug_exceptions.rb:17: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' 
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    activesupport (4.2.1) lib/active_support/tagged_logging.rb:68:in `block in tagged' 
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    rack (1.6.4) lib/rack/lock.rb:17:in `call' 
    rack-livereload (0.3.15) lib/rack/livereload.rb:23:in `_call' 
    rack-livereload (0.3.15) lib/rack/livereload.rb:14:in `call' 
    rack-zippy (3.0.0) lib/rack-zippy.rb:55:in `call' 
    rack (1.6.4) lib/rack/sendfile.rb:113:in `call' 
    sentry-raven (0.13.3) lib/raven/integrations/rack.rb:54: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 (1.6.4) lib/rack/content_length.rb:15:in `call' 
    thin (1.5.1) lib/thin/connection.rb:81:in `block in pre_process' 
    thin (1.5.1) lib/thin/connection.rb:79:in `catch' 
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    thin (1.5.1) lib/thin/connection.rb:54:in `process' 
    thin (1.5.1) 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 (1.5.1) lib/thin/backends/base.rb:63:in `start' 
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    rack (1.6.4) lib/rack/handler/thin.rb:19:in `run' 
    rack (1.6.4) lib/rack/server.rb:286:in `start' 
    railties (4.2.1) lib/rails/commands/server.rb:80:in `start' 
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    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)>' 
    bin/spring:13:in `require' 
    bin/spring:13:in `<top (required)>' 
    bin/rails:3:in `load' 
    bin/rails:3:in `<main>' 


    Rendered /Users/marchardantonin/.rvm/gems/ruby-2.0.0-p648/gems/actionpack-4.2.1/lib/action_dispatch/middleware/templates/rescues/_source.erb (3.6ms) 
    Rendered /Users/marchardantonin/.rvm/gems/ruby-2.0.0-p648/gems/actionpack-4.2.1/lib/action_dispatch/middleware/templates/rescues/_trace.text.erb (0.9ms) 
    Rendered /Users/marchardantonin/.rvm/gems/ruby-2.0.0-p648/gems/actionpack-4.2.1/lib/action_dispatch/middleware/templates/rescues/_request_and_response.text.erb (1.1ms) 
    Rendered /Users/marchardantonin/.rvm/gems/ruby-2.0.0-p648/gems/actionpack-4.2.1/lib/action_dispatch/middleware/templates/rescues/diagnostics.text.erb (25.8ms) 
    Rendered /Users/marchardantonin/.rvm/gems/ruby-2.0.0-p648/gems/web-console-2.1.2/lib/web_console/templates/_markup.html.erb (1.2ms) 
    Rendered /Users/marchardantonin/.rvm/gems/ruby-2.0.0-p648/gems/web-console-2.1.2/lib/web_console/templates/style.css.erb within layouts/inlined_string (0.5ms) 
    Rendered /Users/marchardantonin/.rvm/gems/ruby-2.0.0-p648/gems/web-console-2.1.2/lib/web_console/templates/_inner_console_markup.html.erb within layouts/inlined_string (0.5ms) 
    Rendered /Users/marchardantonin/.rvm/gems/ruby-2.0.0-p648/gems/web-console-2.1.2/lib/web_console/templates/_prompt_box_markup.html.erb within layouts/inlined_string (0.4ms) 
    Rendered /Users/marchardantonin/.rvm/gems/ruby-2.0.0-p648/gems/web-console-2.1.2/lib/web_console/templates/console.js.erb within layouts/javascript (21.9ms) 
    Rendered /Users/marchardantonin/.rvm/gems/ruby-2.0.0-p648/gems/web-console-2.1.2/lib/web_console/templates/main.js.erb within layouts/javascript (0.4ms) 
    Rendered /Users/marchardantonin/.rvm/gems/ruby-2.0.0-p648/gems/web-console-2.1.2/lib/web_console/templates/error_page.js.erb within layouts/javascript (0.6ms) 
    Rendered /Users/marchardantonin/.rvm/gems/ruby-2.0.0-p648/gems/web-console-2.1.2/lib/web_console/templates/index.html.erb (48.9ms) 

Answer 1

あなたが必要なものすべてがログにあります。あなたはNoMethodError (undefined method 'where' for nil:NilClass): なので、コントローラのこの動作に@ratingsがないことを意味します。 school.html.erbビューに@ratingsがあっても、それがverified_ratingアクションにあることを意味するものではありません。 before_actionをいくつか追加してそれらを再度選択するか、Ajaxでさらにパラメータを送信してモデル上で実行してください。

Rating.where(some_filer: some_params, verified: true).all