数据库配置没有指定适配器（Sinatra + Heroku + Activerecord）

我得到一个错误（在Sinatra + ActiveRecord Heroku）Database configuration does not specify adapter。数据库配置没有指定适配器（Sinatra + Heroku + Activerecord）

从一些研究看来，这是因为Heroku预计在机架上不会使用环境变量。

我从列出数据库URL的db环境文件中删除了env vars，但仍然收到相同的错误。

编辑：这也工作了一天前db文件不变，所以我不知道什么是错的。

2015-09-01T02:44:40.980448+00:00 app[web.1]: I, [2015-09-01T02:44:40.980313 #3] INFO -- : Refreshing Gem list 
2015-09-01T02:44:41.459544+00:00 app[web.1]: /app/vendor/bundle/ruby/2.0.0/gems/activerecord-4.2.4/lib/active_record/connection_adapters/connection_specification.rb:171:in `spec': database configuration does not specify adapter (ActiveRecord::AdapterNotSpecified) 
2015-09-01T02:44:41.459548+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.0.0/gems/activerecord-4.2.4/lib/active_record/connection_handling.rb:50:in `establish_connection' 
2015-09-01T02:44:41.459550+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.0.0/gems/sinatra-activerecord-2.0.8/lib/sinatra/activerecord.rb:43:in `database=' 
2015-09-01T02:44:41.459552+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.0.0/gems/sinatra-1.4.6/lib/sinatra/base.rb:1216:in `set' 
2015-09-01T02:44:41.459554+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.0.0/gems/sinatra-activerecord-2.0.8/lib/sinatra/activerecord.rb:35:in `database_file=' 
2015-09-01T02:44:41.459555+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.0.0/gems/sinatra-1.4.6/lib/sinatra/base.rb:1216:in `set' 
2015-09-01T02:44:41.459556+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.0.0/gems/sinatra-activerecord-2.0.8/lib/sinatra/activerecord.rb:19:in `registered' 
2015-09-01T02:44:41.459560+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.0.0/gems/sinatra-1.4.6/lib/sinatra/base.rb:1399:in `block in register' 
2015-09-01T02:44:41.459562+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.0.0/gems/sinatra-1.4.6/lib/sinatra/base.rb:1397:in `each' 
2015-09-01T02:44:41.459563+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.0.0/gems/sinatra-1.4.6/lib/sinatra/base.rb:1397:in `register' 
2015-09-01T02:44:41.459565+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.0.0/gems/sinatra-1.4.6/lib/sinatra/base.rb:1977:in `register' 
2015-09-01T02:44:41.459566+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.0.0/gems/sinatra-1.4.6/lib/sinatra/base.rb:2038:in `register' 
2015-09-01T02:44:41.459567+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.0.0/gems/sinatra-activerecord-2.0.8/lib/sinatra/activerecord.rb:54:in `<module:Sinatra>' 
2015-09-01T02:44:41.459569+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.0.0/gems/sinatra-activerecord-2.0.8/lib/sinatra/activerecord.rb:10:in `<top (required)>' 
2015-09-01T02:44:41.459571+00:00 app[web.1]: from /app/app.rb:2:in `require' 
2015-09-01T02:44:41.459575+00:00 app[web.1]: from /app/app.rb:2:in `<top (required)>' 
2015-09-01T02:44:41.459576+00:00 app[web.1]: from config.ru:2:in `require' 
2015-09-01T02:44:41.459578+00:00 app[web.1]: from config.ru:2:in `block in <main>' 
2015-09-01T02:44:41.459587+00:00 app[web.1]: from config.ru:1:in `<main>' 
2015-09-01T02:44:41.459589+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.0.0/gems/unicorn-4.9.0/lib/unicorn.rb:48:in `eval' 
2015-09-01T02:44:41.459590+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.0.0/gems/unicorn-4.9.0/lib/unicorn.rb:48:in `block in builder' 
2015-09-01T02:44:41.459581+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.0.0/gems/rack-1.6.4/lib/rack/builder.rb:55:in `instance_eval' 
2015-09-01T02:44:41.459600+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.0.0/bin/unicorn:23:in `load' 
2015-09-01T02:44:41.459582+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.0.0/gems/rack-1.6.4/lib/rack/builder.rb:55:in `initialize' 
2015-09-01T02:44:41.459601+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.0.0/bin/unicorn:23:in `<main>' 
2015-09-01T02:44:41.459584+00:00 app[web.1]: from config.ru:1:in `new' 
2015-09-01T02:44:41.459593+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.0.0/gems/unicorn-4.9.0/lib/unicorn/http_server.rb:768:in `build_app!' 
2015-09-01T02:44:41.459595+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.0.0/gems/unicorn-4.9.0/lib/unicorn/http_server.rb:137:in `start' 
2015-09-01T02:44:41.459598+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.0.0/gems/unicorn-4.9.0/bin/unicorn:126:in `<top (required)>' 
2015-09-01T02:44:41.459592+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.0.0/gems/unicorn-4.9.0/lib/unicorn/http_server.rb:768:in `call' 
2015-09-01T02:44:42.358161+00:00 heroku[web.1]: State changed from starting to crashed 
2015-09-01T02:44:42.351187+00:00 heroku[web.1]: Process exited with status 1

这里是数据库配置文件。

#The environment variable DATABASE_URL should be in the following format: 
# => postgres://{user}:{password}@{host}:{port}/path 




configure :development, :production do 
db = URI.parse("REMOVED ACTUAL DB URL") 


ActiveRecord::Base.establish_connection(
     :adapter => db.scheme == 'postgres' ? 'postgresql' : db.scheme, 
     :host  => db.host, 
     :username => db.user, 
     :password => db.password, 
     :database => db.path[1..-1], 
     :encoding => 'utf8' 
) 

#adding development REDIS config 
ENV["REDISTOGO_URL"] = "REMOVED ACTUAL DB URL" 

end 



configure :development do 
db = URI.parse('postgres://postgres:[email protected]/development') 

#adding development REDIS config 
ENV["REDISTOGO_URL"] = "REMOVED ACTUAL REDIS URL" 

ActiveRecord::Base.establish_connection(
     :adapter => db.scheme == 'postgres' ? 'postgresql' : db.scheme, 
     :host  => db.host, 
     :username => db.user, 
     :password => db.password, 
     :database => db.path[1..-1], 
     :encoding => 'utf8' 
) 
end 





#set up the test database 
configure :test do 
db = URI.parse('postgres://postgres:[email protected]/test') 


#adding development REDIS config 
ENV["REDISTOGO_URL"] =   "REMOVED ACTUAL DB URL" 

ActiveRecord::Base.establish_connection(
     :adapter => db.scheme == 'postgres' ? 'postgresql' : db.scheme, 
     :host  => db.host, 
     :username => db.user, 
     :password => db.password, 
     :database => db.path[1..-1], 
     :encoding => 'utf8' 
) 
end

这里的database.yml文件：

development: 
    adapter: postgresql 
    database: development 
    username: <%= ENV['PG_USER'] %> 
    password: <%= ENV['PG_PASS'] %> 
    host: localhost 

test: 
    adapter: postgresql 
    database: test 
    username: <%= ENV['PG_USER'] %> 
    password: <%= ENV['PG_PASS'] %> 
    host: localhost

编辑2：它看起来像损伤来自四个提交之一。下面看看其中的一个变化：（编辑3：https://www.dropbox.com/s/dnw41av20uoxf8w/GitHub%20Diff2.pdf？）

来源

2015-09-01 Phil

显示数据库配置？ –

您可能想隐藏该文件中的用户/密码/主机信息。只是为了额外的安全 – thesecretmaster

是的，完成。我们发现上面链接的破坏提交。我们认为错误来自在一个不好的rspec测试中（在文件的最后）使用保留字'include'。 – Phil

今天我有同样的问题，并联系寻求帮助的Heroku支持。

他们指示我在自己的Ruby构建组最近的变化，在这里看到：https://devcenter.heroku.com/changelog-items/709

我更新了我的database.yml文件，以反映这种变化，并引用了生产DATABASE_URL，和我的应用程序部署再次。

production: 
    url: <%= ENV['DATABASE_URL'] %>

来源

2015-09-03 10:08:13

美丽。你是圣人 - 感谢一群！这非常具有破坏性，应该很容易更新Sinatra/ActiveRecord应用程序的红宝石拥有者。 – Phil

你不需要像这样做URL解析。如果可用，我在几年前修补了ActiveRecord，默认为使用ENV['DATABASE_URL']。所以，如果它的设置（这是在Heroku上，如果你已经安装了heroku-postgresql），那么只需要调用ActiveRecord.establish_connection，它会工作：http://apidock.com/rails/ActiveRecord/Base/establish_connection/class

来源

2015-09-01 23:52:47

我回来了 - 这看起来不是问题。任何想法会带来这个错误？ – Phil

数据库配置没有指定适配器（Sinatra + Heroku + Activerecord）

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