Question

我是rails的新手，我在Lynda.com上浏览了Kevin Skoglund的Ruby on Rails 3 Essential Training课程。通过课程，你设置了一个简单的cms，我做了。它不包括Git或部署，但我已将我的简单cms推送到github（https://github.com/nick5a1/Simple_CMS）并部署到Heroku（http://nkarrasch.herokuapp.com/）。

为了部署到Heroku，我遵循Heroku设置指南（https://devcenter.heroku.com/articles/rails3）并将我的数据库从MySQL切换到PostgreSQL。按照指示，我在我的Gemfile中将gen'mysql2'更改为gen'sqlite3'并在推送之前运行bundle install。然后我跑了heroku run rake db:migrate。

我遇到了两个问题。当我尝试登录（http://nkarrasch.herokuapp.com/access）时，我收到错误“我们很抱歉，但出了点问题”。我应该使用无效的用户名/密码组合获取flash消息。这就是我在本地计算机上的测试环境中所获得的。

其次，当我登录Heroku控制台创建并创建管理员用户时，当我尝试保存该用户时，我收到以下错误：

irb(main):004:0> user.save
   (1.2ms)  BEGIN
  AdminUser Exists (1.9ms)  SELECT 1 AS one FROM "admin_users" WHERE "admin_users"."username" = 'Nick5a1' LIMIT 1
   (1.7ms)  ROLLBACK
=> false

有关如何排除故障的任何建议都将非常感激：）。

非常感谢，尼克

编辑：这是我的Heroku日志：

2012-06-27T20:36:44+00:00 heroku[slugc]: Slug compilation started
2012-06-27T20:37:34+00:00 heroku[api]: Add shared-database:5mb add-on by *
2012-06-27T20:37:34+00:00 heroku[api]: Release v2 created by *
2012-06-27T20:37:34+00:00 heroku[api]: Add RAILS_ENV, LANG, PATH, RACK_ENV, GEM_PATH config by *
2012-06-27T20:37:34+00:00 heroku[api]: Release v3 created by *
2012-06-27T20:37:34+00:00 heroku[api]: Release v4 created by *
2012-06-27T20:37:34+00:00 heroku[api]: Deploy 1d82839 by *
2012-06-27T20:37:35+00:00 heroku[slugc]: Slug compilation finished
2012-06-27T20:37:36+00:00 heroku[web.1]: Starting process with command `bundle exec rails server -p 45450`
2012-06-27T20:37:40+00:00 app[web.1]: DEPRECATION WARNING: You have Rails 2.3-style plugins in vendor/plugins! Support for these plugins will be removed in Rails 4.0. Move them out and bundle them in your Gemfile, or fold them in to your app as lib/myplugin/* and config/initializers/myplugin.rb. See the release notes for more on this: http://weblog.rubyonrails.org/2012/1/4/rails-3-2-0-rc2-has-been-released. (called from <top (required)> at /app/config/environment.rb:5)
2012-06-27T20:37:40+00:00 app[web.1]: DEPRECATION WARNING: You have Rails 2.3-style plugins in vendor/plugins! Support for these plugins will be removed in Rails 4.0. Move them out and bundle them in your Gemfile, or fold them in to your app as lib/myplugin/* and config/initializers/myplugin.rb. See the release notes for more on this: http://weblog.rubyonrails.org/2012/1/4/rails-3-2-0-rc2-has-been-released. (called from <top (required)> at /app/config/environment.rb:5)
2012-06-27T20:37:40+00:00 app[web.1]: DEPRECATION WARNING: You have Rails 2.3-style plugins in vendor/plugins! Support for these plugins will be removed in Rails 4.0. Move them out and bundle them in your Gemfile, or fold them in to your app as lib/myplugin/* and config/initializers/myplugin.rb. See the release notes for more on this: http://weblog.rubyonrails.org/2012/1/4/rails-3-2-0-rc2-has-been-released. (called from <top (required)> at /app/config/environment.rb:5)
2012-06-27T20:37:44+00:00 app[web.1]: => Rails 3.2.6 application starting in production on http://0.0.0.0:45450
2012-06-27T20:37:44+00:00 app[web.1]: => Call with -d to detach
2012-06-27T20:37:44+00:00 app[web.1]: => Booting WEBrick
2012-06-27T20:37:44+00:00 app[web.1]: Connecting to database specified by DATABASE_URL
2012-06-27T20:37:44+00:00 app[web.1]: => Ctrl-C to shutdown server
2012-06-27T20:37:44+00:00 app[web.1]: [2012-06-27 20:37:44] INFO  WEBrick 1.3.1
2012-06-27T20:37:44+00:00 app[web.1]: [2012-06-27 20:37:44] INFO  ruby 1.9.2 (2011-07-09) [x86_64-linux]
2012-06-27T20:37:44+00:00 app[web.1]: [2012-06-27 20:37:44] INFO  WEBrick::HTTPServer#start: pid=2 port=45450
2012-06-27T20:37:45+00:00 heroku[web.1]: State changed from starting to up
2012-06-27T20:39:44+00:00 heroku[run.1]: Awaiting client
2012-06-27T20:39:44+00:00 heroku[run.1]: Starting process with command `bundle exec rake db:migrate`
2012-06-27T20:39:44+00:00 heroku[run.1]: State changed from starting to up
2012-06-27T20:39:51+00:00 heroku[run.1]: Process exited with status 0
2012-06-27T20:39:51+00:00 heroku[run.1]: State changed from up to complete
2012-06-27T20:41:05+00:00 heroku[run.1]: Awaiting client
2012-06-27T20:41:05+00:00 heroku[run.1]: Starting process with command `bundle exec rails console`
2012-06-27T20:41:05+00:00 heroku[run.1]: State changed from starting to up
2012-06-27T20:46:09+00:00 heroku[run.1]: Process exited with status 0
2012-06-27T20:46:09+00:00 heroku[run.1]: State changed from up to complete

Answer 1

您要宣布两个不同的数据库...尝试从Gemfile

中删除这两行

gem 'pg'
gem 'mysql2'

并添加以下内容：

group :production do
  gem 'pg'
  gem 'thin'
end

group :development, :test do
  gem 'mysql2'
end

通过这种方式，您将定义一个用于开发的数据库（mysql）和另一个用于生产的数据库（<{1}}）。

更改gemfile后：

pg

编辑 - 查看您的git add . git commit -m "gemfile updated" git push git push heroku master heroku run rake db:migrate我意识到您使用的是routes.rb，这会通过match ':controller(/:action(/:id))(.:format)'请求提供您的所有操作。但是，我从未使用它，我认为你的路线可能有问题。

Jast确保它指向get，是否可以包括由以下内容生成的路线：

access/attempt_login

无法在Heroku上创建管理员用户

1 个答案: