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当我处于开发模式并尝试 localhost:3000/documents/1 时，视图正确呈现并且控制台显示：

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)

但是当我改为生产时，我得到：

    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'

应用程序跟踪显示：

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

为什么最后一行显示 roles_controller.rb:103:in `show' ？不应该是documents_controller.rb吗？如果我通过将变量名称更改为不存在的名称来强制开发错误，则错误页面会显示在应用程序跟踪中：

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

可以看到最后一行显示了documents_controller.rb。

我真的不知道在哪里看。当我在 production.rb 中将 config.cache_classes = true 设置为 false 时，错误消失了。（我不知道这是什么意思）。也许我不知道如何配置路由。我应该发布我的 routes.rb 文件吗？

任何帮助，将不胜感激！

4

1 回答 1

0

好吧，我刚刚发现角色控制器有一个文档控制器的部分定义，当在生产中缓存时，它是第一个被调用的。我只是删除了角色控制器中文档控制器的部分定义，并将所有内容移至正确的控制器。

于 2012-09-17T14:39:43.293 回答