我遇到了一个非常奇怪的案例。我有这种情况，有时它会过去。有时它没有。事实上，每一步都是绿色的，但是在这一步之后它会产生这个垃圾堆栈跟踪，它不会告诉我关于我的应用程序的任何信息。
我在这里没有做任何复杂的事情，只是想用 TinyMCE 创建一个该死的评论。我还有 20 个其他场景，其中一些要复杂得多。
尽管从堆栈跟踪中可以很明显地看出我的环境，但它可能有助于说明我的环境:
Rails 3.1，ruby 1.9.2，最新的“稳定”版本。 Postgres 9.0.4。
比我聪明的人可以解释为什么我会遇到这个问题吗？
Feature: Payment object comments
In order to explain a action I performed on a payment object
As a user
I want to make a comment
@wip @javascript
Scenario: Creating a comment # features/payment_objects/comments.feature:8
[paperclip] Saving attachments.
[paperclip] Saving attachments.
[paperclip] Saving attachments.
Given I am in a company # features/step_definitions/application_steps.rb:1
And I have created 1 cash requisitions # features/step_definitions/payment_steps.rb:5
When I am on the requisitions page # features/step_definitions/web_steps.rb:44
And I click on the 1st requisition # features/step_definitions/payment_steps.rb:39
When I open the Comments tab # features/step_definitions/payment_steps.rb:101
http://127.0.0.1:51796/assets/tinymce/plugins/spellchecker/editor_plugin.js?3.4.5:1 Error: Sprockets::EncodingError: /Users/pma/.rvm/gems/ruby-1.9.2-p290/gems/tinymce-rails-3.4.5/assets/precompiled/tinymce/plugins/spellchecker/editor_plugin.js has a invalid UTF-8 byte sequence
When I fill in "comment_content" with "Testing123" # features/step_definitions/web_steps.rb:64
And I click on "Comment" # features/step_definitions/web_steps.rb:52
Then there should be a comment saying "Testing123" # features/step_definitions/payment_steps.rb:106
http://127.0.0.1:51796/assets/tinymce/plugins/spellchecker/editor_plugin.js?3.4.5:1 Error: Sprockets::EncodingError: /Users/pma/.rvm/gems/ruby-1.9.2-p290/gems/tinymce-rails-3.4.5/assets/precompiled/tinymce/plugins/spellchecker/editor_plugin.js has a invalid UTF-8 byte sequence
NoMethodError: undefined method `nfields' for nil:NilClass: SELECT tablename
FROM pg_tables
WHERE schemaname = ANY (current_schemas(false))
(ActiveRecord::StatementInvalid)
/Users/pma/.rvm/gems/ruby-1.9.2-p290/gems/activesupport-3.1.0/lib/active_support/whiny_nil.rb:48:in `method_missing'
/Users/pma/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-3.1.0/lib/active_record/connection_adapters/postgresql_adapter.rb:490:in `result_as_array'
/Users/pma/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-3.1.0/lib/active_record/connection_adapters/postgresql_adapter.rb:533:in `block in query'
/Users/pma/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-3.1.0/lib/active_record/connection_adapters/abstract_adapter.rb:244:in `block in log'
/Users/pma/.rvm/gems/ruby-1.9.2-p290/gems/activesupport-3.1.0/lib/active_support/notifications/instrumenter.rb:21:in `instrument'
/Users/pma/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-3.1.0/lib/active_record/connection_adapters/abstract_adapter.rb:239:in `log'
/Users/pma/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-3.1.0/lib/active_record/connection_adapters/postgresql_adapter.rb:532:in `query'
/Users/pma/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-3.1.0/lib/active_record/connection_adapters/postgresql_adapter.rb:666:in `tables'
/Users/pma/.rvm/gems/ruby-1.9.2-p290/gems/activerecord-3.1.0/lib/active_record/connection_adapters/postgresql_adapter.rb:455:in `disable_referential_integrity'
/Users/pma/.rvm/gems/ruby-1.9.2-p290/gems/database_cleaner-0.6.7/lib/database_cleaner/active_record/truncation.rb:113:in `each_table'
/Users/pma/.rvm/gems/ruby-1.9.2-p290/gems/database_cleaner-0.6.7/lib/database_cleaner/active_record/truncation.rb:106:in `clean'
/Users/pma/.rvm/gems/ruby-1.9.2-p290/gems/database_cleaner-0.6.7/lib/database_cleaner/base.rb:77:in `clean'
/Users/pma/.rvm/gems/ruby-1.9.2-p290/gems/database_cleaner-0.6.7/lib/database_cleaner/configuration.rb:56:in `block in clean'
/Users/pma/.rvm/gems/ruby-1.9.2-p290/gems/database_cleaner-0.6.7/lib/database_cleaner/configuration.rb:56:in `each'
/Users/pma/.rvm/gems/ruby-1.9.2-p290/gems/database_cleaner-0.6.7/lib/database_cleaner/configuration.rb:56:in `clean'
/Users/pma/.rvm/gems/ruby-1.9.2-p290/gems/cucumber-rails-1.0.2/lib/cucumber/rails/hooks/database_cleaner.rb:9:in `After'
最佳答案
我在运行 asset pipeline 和 tiny_mce 时遇到了类似的问题
rake assets:precompile
...我尝试用 iconv 等转换文件 editor_plugin_src.js 和 editor_plugin.js，但最终只是暂时删除了它们，一切正常。我正计划“正确修复”，但如果您不需要拼写检查器，您可能不需要这些文件...
关于ruby-on-rails - Postgres 还是 database_cleaner？，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/7347210/