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開発モードで localhost:3000/documents/1 を試すと、ビューが正しくレンダリングされ、コンソールに次のように表示されます。

Started GET "/documents/1" for 127.0.0.1
Processing by DocumentsController#show as HTML
  Parameters: {"id"=>"1"}
  User Load (0.5ms)  SELECT "users".* FROM "users" WHERE "users"."id" = 1 LIMIT 1
  Document Load (0.3ms)  SELECT "documents".* FROM "documents" WHERE "documents"."id" = $1 LIMIT 1  [["id", "1"]]
  CACHE (0.0ms)  SELECT "users".* FROM "users" WHERE "users"."id" = 1 LIMIT 1
  Comment Load (0.4ms)  SELECT "comments".* FROM "comments" WHERE "comments"."commentable_id" = 1 AND "comments"."commentable_type" = 'Document' ORDER BY created_at ASC, created_at DESC
  Tag Load (0.4ms)  SELECT "tags".* FROM "tags" INNER JOIN "document_tags" ON "tags"."id" = "document_tags"."tag_id" WHERE "document_tags"."document_id" = 1 AND "tags"."tag_family_id" = 1 LIMIT 1
  Tag Load (0.4ms)  SELECT "tags".* FROM "tags" INNER JOIN "document_tags" ON "tags"."id" = "document_tags"."tag_id" WHERE "document_tags"."document_id" = 1 AND "tags"."tag_family_id" = 2 LIMIT 1
  Tag Load (0.7ms)  SELECT "tags".* FROM "tags" INNER JOIN "document_tags" ON "tags"."id" = "document_tags"."tag_id" WHERE "document_tags"."document_id" = 1 AND "tags"."tag_family_id" = 3 LIMIT 1
  Tag Load (0.5ms)  SELECT "tags".* FROM "tags" INNER JOIN "document_tags" ON "tags"."id" = "document_tags"."tag_id" WHERE "document_tags"."document_id" = 1 AND "tags"."tag_family_id" = 4 LIMIT 1
  Tag Load (0.3ms)  SELECT name FROM "tags" INNER JOIN "document_tags" ON "tags"."id" = "document_tags"."tag_id" WHERE "document_tags"."document_id" = 1 AND "tags"."tag_family_id" = 5
  Tag Load (0.3ms)  SELECT name FROM "tags" INNER JOIN "document_tags" ON "tags"."id" = "document_tags"."tag_id" WHERE "document_tags"."document_id" = 1 AND "tags"."tag_family_id" = 6
  Rating Load (0.4ms)  SELECT "ratings".* FROM "ratings" WHERE "ratings"."user_id" = 1 AND "ratings"."document_id" = 1 LIMIT 1
  Rendered ratings/_show.html.erb (5.7ms)
  Rendered comments/show.html.erb (0.1ms)
  Rendered comments/_form.html.erb (1.6ms)
  Rendered documents/show.html.erb within layouts/application (113.6ms)
  Rendered layouts/_actions_header.html.erb (0.4ms)
  Rendered layouts/_header.html.erb (1.5ms)
  Rendered layouts/sidebar/_reciente.html.erb (0.1ms)
  Rendered layouts/_footer.html.erb (2.6ms)
Completed 200 OK in 159ms (Views: 138.4ms | ActiveRecord: 4.3ms)

しかし、本番環境に変更すると、次のようになります。

    Started GET "/documents/1" for 127.0.0.1
Processing by DocumentsController#show as HTML
  Parameters: {"id"=>"1"}
  User Load (5.5ms)  SELECT "users".* FROM "users" WHERE "users"."id" = 1 LIMIT 1
  Document Load (1.1ms)  SELECT "documents".* FROM "documents" WHERE "documents"."id" = $1 LIMIT 1  [["id", "1"]]
  Comment Load (1.4ms)  SELECT "comments".* FROM "comments" WHERE "comments"."commentable_id" = 1 AND "comments"."commentable_type" = 'Document' ORDER BY created_at ASC, created_at DESC
  Rendered documents/show.html.erb within layouts/application (7.6ms)
Completed 500 Internal Server Error in 508ms

ActionView::Template::Error (undefined method `username' for nil:NilClass):
    13: <%if(!@tags.blank?) %>
    14:       <label>Palabras Clave:</label> <%=@tags.join(", ")%> <br />
    15: <%end%>
    16: <label>Un aporte de </label><%= link_to @uploader.username, user_path(@uploader)%>
    17: 
    18: <div id="ratings">
    19: <%= render :partial => 'ratings/show', :locals => {:model => @document} %>
  app/views/documents/show.html.erb:16:in `_app_views_documents_show_html_erb__1282539740_2502607180'
  app/controllers/roles_controller.rb:103:in `show'

また、アプリケーション トレースは次のように表示されます。

    app/views/documents/show.html.erb:16:in `_app_views_documents_show_html_erb__1282539740_2502607180'
app/controllers/roles_controller.rb:103:in `show'

`show' で最後の行に roles_controller.rb:103: が表示されるのはなぜですか? documents_controller.rb ではないでしょうか。変数名を存在しないものに変更して開発でエラーを強制すると、アプリケーション トレースにエラー ページが表示されます。

    app/views/documents/show.html.erb:16:in `_app_views_documents_show_html_erb___1159141803_2474953060'
app/controllers/documents_controller.rb:29:in `show'

最後の行に documents_controller.rb が表示されていることがわかります。

どこを見たらいいのかわからない。production.rb で config.cache_classes = true を false に設定すると、エラーが消えます。（私はこれが何を意味するのかわかりません）。ルートの設定方法がわからないのかもしれません。routes.rb ファイルを投稿する必要がありますか?

どんな助けでも大歓迎です！

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1 に答える 1

0

さて、roles_controllersにはdocuments_controllerの部分的な定義があり、本番環境でキャッシュされたときに最初に呼び出されたことがわかりました。ロールコントローラーのdocuments_controllerの部分的な定義を消去し、すべてを正しいコントローラーに移動しました。

于 2012-09-17T14:39:43.293 に答える