尝试在 Heroku 上部署多租户 Rails 应用程序时的 Apartment::SchemaNotFound答案

【问题标题】：Apartment::SchemaNotFound when trying to deploy multi-tenancy Rails app on Heroku尝试在 Heroku 上部署多租户 Rails 应用程序时的 Apartment::SchemaNotFound
【发布时间】：2016-12-01 22:12:47
【问题描述】：

我已经在本地开发了一段时间的应用程序，并且我已尽可能将我的开发环境与 Heroku 上的环境匹配。

该应用使用 Apartment (https://github.com/influitive/apartment) 设置为多租户，旨在使用子域来识别租户。两种环境都使用 postgres，而 Apartment 一直在使用模式来管理“tanants”数据。

今天晚上，我尝试将代码推送到 Heroku（在成为多租户之前的同一个应用程序运行良好），没有页面加载，都报错。

我查看了日志，我能找到的最有趣的一行是； Apartment::SchemaNotFound (One of the following schema(s) is invalid: heroku-app-name, "public"):

这似乎是 Heroku 的一个特性，但我正在努力寻找下一步该往哪里看的想法。

任何建议或帮助将不胜感激。

我已包含所有日志以供参考；

2014-04-04T18:27:09.884367+00:00 app[web.1]: Apartment::SchemaNotFound (One of the following schema(s) is invalid: heroku-app-name, "public"):
2014-04-04T18:27:09.884368+00:00 app[web.1]:   vendor/bundle/ruby/2.0.0/gems/apartment-0.24.3/lib/apartment/adapters/postgresql_adapter.rb:95:in `rescue in connect_to_new'
2014-04-04T18:27:09.884384+00:00 app[web.1]:   vendor/bundle/ruby/2.0.0/gems/rack-1.5.2/lib/rack/etag.rb:23:in `call'
2014-04-04T18:27:09.884362+00:00 app[web.1]:
2014-04-04T18:27:09.884385+00:00 app[web.1]:   vendor/bundle/ruby/2.0.0/gems/rack-1.5.2/lib/rack/conditionalget.rb:25:in `call'
2014-04-04T18:27:09.884364+00:00 app[web.1]: I, [2014-04-04T18:27:09.879482 #2]  INFO -- : Started GET "/favicon.ico" for 92.25.163.224 at 2014-04-04 18:27:09 +0000
2014-04-04T18:27:09.884388+00:00 app[web.1]:   vendor/bundle/ruby/2.0.0/gems/actionpack-4.0.0/lib/action_dispatch/middleware/params_parser.rb:27:in `call'
2014-04-04T18:27:09.884389+00:00 app[web.1]:   vendor/bundle/ruby/2.0.0/gems/actionpack-4.0.0/lib/action_dispatch/middleware/flash.rb:241:in `call'
2014-04-04T18:27:09.884366+00:00 app[web.1]: F, [2014-04-04T18:27:09.884136 #2] FATAL -- :
2014-04-04T18:27:09.884370+00:00 app[web.1]:   vendor/bundle/ruby/2.0.0/gems/apartment-0.24.3/lib/apartment/adapters/postgresql_adapter.rb:88:in `connect_to_new'
2014-04-04T18:27:09.884381+00:00 app[web.1]:   vendor/bundle/ruby/2.0.0/gems/warden-1.2.3/lib/warden/manager.rb:34:in `catch'
2014-04-04T18:27:09.884371+00:00 app[web.1]:   vendor/bundle/ruby/2.0.0/gems/apartment-0.24.3/lib/apartment/adapters/abstract_adapter.rb:100:in `switch'
2014-04-04T18:27:09.884383+00:00 app[web.1]:   vendor/bundle/ruby/2.0.0/gems/warden-1.2.3/lib/warden/manager.rb:34:in `call'
2014-04-04T18:27:09.884396+00:00 app[web.1]:   vendor/bundle/ruby/2.0.0/gems/activerecord-4.0.0/lib/active_record/connection_adapters/abstract/connection_pool.rb:626:in `call'
2014-04-04T18:27:09.884372+00:00 app[web.1]:   vendor/bundle/ruby/2.0.0/gems/apartment-0.24.3/lib/apartment/elevators/generic.rb:20:in `call'
2014-04-04T18:27:09.884387+00:00 app[web.1]:   vendor/bundle/ruby/2.0.0/gems/rack-1.5.2/lib/rack/head.rb:11:in `call'
2014-04-04T18:27:09.884398+00:00 app[web.1]:   vendor/bundle/ruby/2.0.0/gems/actionpack-4.0.0/lib/action_dispatch/middleware/callbacks.rb:29:in `block in call'
2014-04-04T18:27:09.884403+00:00 app[web.1]:   vendor/bundle/ruby/2.0.0/gems/actionpack-4.0.0/lib/action_dispatch/middleware/remote_ip.rb:76:in `call'
2014-04-04T18:27:09.884391+00:00 app[web.1]:   vendor/bundle/ruby/2.0.0/gems/rack-1.5.2/lib/rack/session/abstract/id.rb:225:in `context'
2014-04-04T18:27:09.884392+00:00 app[web.1]:   vendor/bundle/ruby/2.0.0/gems/rack-1.5.2/lib/rack/session/abstract/id.rb:220:in `call'
2014-04-04T18:27:09.884399+00:00 app[web.1]:   vendor/bundle/ruby/2.0.0/gems/activesupport-4.0.0/lib/active_support/callbacks.rb:373:in `_run__2212192162733263500__call__callbacks'
2014-04-04T18:27:09.884400+00:00 app[web.1]:   vendor/bundle/ruby/2.0.0/gems/activesupport-4.0.0/lib/active_support/callbacks.rb:80:in `run_callbacks'
2014-04-04T18:27:09.884393+00:00 app[web.1]:   vendor/bundle/ruby/2.0.0/gems/actionpack-4.0.0/lib/action_dispatch/middleware/cookies.rb:486:in `call'
2014-04-04T18:27:09.884402+00:00 app[web.1]:   vendor/bundle/ruby/2.0.0/gems/actionpack-4.0.0/lib/action_dispatch/middleware/callbacks.rb:27:in `call'
2014-04-04T18:27:09.884406+00:00 app[web.1]:   vendor/bundle/ruby/2.0.0/gems/actionpack-4.0.0/lib/action_dispatch/middleware/show_exceptions.rb:30:in `call'
2014-04-04T18:27:09.884379+00:00 app[web.1]:   vendor/bundle/ruby/2.0.0/gems/warden-1.2.3/lib/warden/manager.rb:35:in `block in call'
2014-04-04T18:27:09.884395+00:00 app[web.1]:   vendor/bundle/ruby/2.0.0/gems/activerecord-4.0.0/lib/active_record/query_cache.rb:36:in `call'
2014-04-04T18:27:09.884409+00:00 app[web.1]:   vendor/bundle/ruby/2.0.0/gems/railties-4.0.0/lib/rails/rack/logger.rb:21:in `block in call'
2014-04-04T18:27:09.884407+00:00 app[web.1]:   vendor/bundle/ruby/2.0.0/gems/railties-4.0.0/lib/rails/rack/logger.rb:38:in `call_app'
2014-04-04T18:27:09.884410+00:00 app[web.1]:   vendor/bundle/ruby/2.0.0/gems/activesupport-4.0.0/lib/active_support/tagged_logging.rb:67:in `block in tagged'
2014-04-04T18:27:09.884404+00:00 app[web.1]:   vendor/bundle/ruby/2.0.0/gems/actionpack-4.0.0/lib/action_dispatch/middleware/debug_exceptions.rb:17:in `call'
2014-04-04T18:27:09.884430+00:00 app[web.1]:   vendor/bundle/ruby/2.0.0/gems/activesupport-4.0.0/lib/active_support/tagged_logging.rb:67:in `tagged'
2014-04-04T18:27:09.884431+00:00 app[web.1]:   vendor/bundle/ruby/2.0.0/gems/railties-4.0.0/lib/rails/rack/logger.rb:21:in `call'
2014-04-04T18:27:09.884432+00:00 app[web.1]:   vendor/bundle/ruby/2.0.0/gems/actionpack-4.0.0/lib/action_dispatch/middleware/request_id.rb:21:in `call'
2014-04-04T18:27:09.884428+00:00 app[web.1]:   vendor/bundle/ruby/2.0.0/gems/activesupport-4.0.0/lib/active_support/tagged_logging.rb:25:in `tagged'
2014-04-04T18:27:09.884435+00:00 app[web.1]:   vendor/bundle/ruby/2.0.0/gems/rack-1.5.2/lib/rack/runtime.rb:17:in `call'
2014-04-04T18:27:09.884444+00:00 app[web.1]:   vendor/bundle/ruby/2.0.0/gems/railties-4.0.0/lib/rails/application.rb:97:in `call'
2014-04-04T18:27:09.884434+00:00 app[web.1]:   vendor/bundle/ruby/2.0.0/gems/rack-1.5.2/lib/rack/methodoverride.rb:21:in `call'
2014-04-04T18:27:09.884437+00:00 app[web.1]:   vendor/bundle/ruby/2.0.0/gems/activesupport-4.0.0/lib/active_support/cache/strategy/local_cache.rb:83:in `call'
2014-04-04T18:27:09.884442+00:00 app[web.1]:   vendor/bundle/ruby/2.0.0/gems/railties-4.0.0/lib/rails/engine.rb:511:in `call'
2014-04-04T18:27:09.884445+00:00 app[web.1]:   vendor/bundle/ruby/2.0.0/gems/rack-1.5.2/lib/rack/lock.rb:17:in `call'
2014-04-04T18:27:09.884448+00:00 app[web.1]:   vendor/bundle/ruby/2.0.0/gems/rack-1.5.2/lib/rack/handler/webrick.rb:60:in `service'
2014-04-04T18:27:09.884446+00:00 app[web.1]:   vendor/bundle/ruby/2.0.0/gems/rack-1.5.2/lib/rack/content_length.rb:14:in `call'
2014-04-04T18:27:09.884450+00:00 app[web.1]:   vendor/ruby-2.0.0/lib/ruby/2.0.0/webrick/httpserver.rb:138:in `service'
2014-04-04T18:27:09.884451+00:00 app[web.1]:   vendor/ruby-2.0.0/lib/ruby/2.0.0/webrick/httpserver.rb:94:in `run'
2014-04-04T18:27:09.884452+00:00 app[web.1]:   vendor/ruby-2.0.0/lib/ruby/2.0.0/webrick/server.rb:295:in `block in start_thread'

【问题讨论】：

你在 dev/locally 中使用 postgres 吗？
是的，Postgres 在本地应用程序中运行没有任何问题。
你找到解决方案了吗？

标签： ruby-on-rails postgresql heroku

【解决方案1】：

查看您的公寓初始化程序并删除子域电梯设置。我评论了与电梯有关的所有内容。由于您的应用程序可能位于 heroku 子域上，因此电梯设置将尝试从数据库加载该特定租户并发出该错误。

我评论后效果很好

# Rails.application.config.middleware.use 'Apartment::Elevators::Subdomain'

【讨论】：