未初始化的常量APN :: App :: RAILS_ENV

Question

我在我安裝的APN on Rails gem上觸發了命令rake apn:notifications:deliver之後，我正在努力解決此錯誤。

它在咆哮RAILS_ENV變量。我已經嘗試了幾次將RAILS_ENV更改爲Rails.env的叉，但我仍然得到相同的錯誤。我已經在that repo上發佈了我的問題，希望我能找到某個地方。

我對鐵軌的瞭解還不夠深入。我希望有人能指出我正確的方向，以便我能更好地理解問題所在，並b）解決問題。

我使用捆綁，我指着我的寶石文件git的回購：你使用rake apn:notifications:deliver

air:apnapp azcoov$ rake apn:notifications:deliver --trace 
    /Users/azcoov/.bundler/ruby/1.8/apn_on_rails-ca98c7c130f0/lib/apn_on_rails/version.rb:2: warning: already initialized constant VERSION 
    ** Invoke apn:notifications:deliver (first_time) 
    ** Invoke environment (first_time) 
    ** Execute environment 
    ** Execute apn:notifications:deliver 
    rake aborted! 
    uninitialized constant APN::App::RAILS_ENV 
    /Users/azcoov/.bundler/ruby/1.8/apn_on_rails-ca98c7c130f0/lib/apn_on_rails/app/models/apn/app.rb:11:in `cert' 
    /Users/azcoov/.bundler/ruby/1.8/apn_on_rails-ca98c7c130f0/lib/apn_on_rails/app/models/apn/app.rb:22:in `send_notifications' 
    /Users/azcoov/.bundler/ruby/1.8/apn_on_rails-ca98c7c130f0/lib/apn_on_rails/app/models/apn/app.rb:32:in `send_notifications' 
    /Users/azcoov/.bundler/ruby/1.8/apn_on_rails-ca98c7c130f0/lib/apn_on_rails/app/models/apn/app.rb:31:in `each' 
    /Users/azcoov/.bundler/ruby/1.8/apn_on_rails-ca98c7c130f0/lib/apn_on_rails/app/models/apn/app.rb:31:in `send_notifications' 
    /Users/azcoov/.bundler/ruby/1.8/apn_on_rails-ca98c7c130f0/lib/apn_on_rails/rails/../tasks/apn.rake:7 
    /Library/Ruby/Gems/1.8/gems/rake-0.9.2.2/lib/rake/task.rb:205:in `call' 
    /Library/Ruby/Gems/1.8/gems/rake-0.9.2.2/lib/rake/task.rb:205:in `execute' 
    /Library/Ruby/Gems/1.8/gems/rake-0.9.2.2/lib/rake/task.rb:200:in `each' 
    /Library/Ruby/Gems/1.8/gems/rake-0.9.2.2/lib/rake/task.rb:200:in `execute' 
    /Library/Ruby/Gems/1.8/gems/rake-0.9.2.2/lib/rake/task.rb:158:in `invoke_with_call_chain' 
    /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/monitor.rb:242:in `synchronize' 
    /Library/Ruby/Gems/1.8/gems/rake-0.9.2.2/lib/rake/task.rb:151:in `invoke_with_call_chain' 
    /Library/Ruby/Gems/1.8/gems/rake-0.9.2.2/lib/rake/task.rb:144:in `invoke' 
    /Library/Ruby/Gems/1.8/gems/rake-0.9.2.2/lib/rake/application.rb:116:in `invoke_task' 
    /Library/Ruby/Gems/1.8/gems/rake-0.9.2.2/lib/rake/application.rb:94:in `top_level' 
    /Library/Ruby/Gems/1.8/gems/rake-0.9.2.2/lib/rake/application.rb:94:in `each' 
    /Library/Ruby/Gems/1.8/gems/rake-0.9.2.2/lib/rake/application.rb:94:in `top_level' 
    /Library/Ruby/Gems/1.8/gems/rake-0.9.2.2/lib/rake/application.rb:133:in `standard_exception_handling' 
    /Library/Ruby/Gems/1.8/gems/rake-0.9.2.2/lib/rake/application.rb:88:in `top_level' 
    /Library/Ruby/Gems/1.8/gems/rake-0.9.2.2/lib/rake/application.rb:66:in `run' 
    /Library/Ruby/Gems/1.8/gems/rake-0.9.2.2/lib/rake/application.rb:133:in `standard_exception_handling' 
    /Library/Ruby/Gems/1.8/gems/rake-0.9.2.2/lib/rake/application.rb:63:in `run' 
    /Library/Ruby/Gems/1.8/gems/rake-0.9.2.2/bin/rake:33 
    /usr/bin/rake:19:in `load' 
    /usr/bin/rake:19 
    Tasks: TOP => apn:notifications:deliver 

Answer 1

Rails的哪個版本？我也遇到了這個問題。我的Rails知識不是很深，但似乎問題是對RAILS_ *環境變量的棄用。我使用的Rails 3.1.0，我沒有：

RAILS_ROOT/ENV/blah 

在我的環境中。相反，我有：

Rails.root/env/blah 

當我在app /型號Rails.env取代RAILS_ENV/APN/app.rb問題消失。

那麼，這個寶石兼容Rails 3.1.0？看起來不是。是否有解決方法可以在生產環境中使用？也許定義某處：

APN::App::RAILS_ENV = Rails.env 

但是在哪裏？

UPDATE：

我得到了它與garyfoster這裏描述的解決方法工作：https://github.com/PRX/apn_on_rails/issues/53。

總之，三件事情：

1）添加這個貧民窟劈死你的config/environment.rb文件中：

APN::App::RAILS_ENV = Rails.env 

2）將您的證書在APN :: APP表。我寫爲一次性耙任務：

task :init_apn_certs => [:environment] do # NOTE: One-time task... 
    print "Creating APN::App with certs..." 
    app = APN::App.create(:apn_dev_cert => Rails.root.join('config', 'apple_push_notification_development.pem').read, 
         :apn_prod_cert => Rails.root.join('config', 'apple_push_notification_production.pem').read) 
    puts (app.valid? ? "done" : "failed") 
end 

3）自己寫的rake任務繞過APN :: App.send_notifications方法，如與另一個錯誤barfs（一些有關「/配置/ apple_push_notification_development .pem'不存在）。我爲它的代碼：

task :deliver_notifications => [:environment] do 
    print "Delivering APNs for app ids..." 
    apps = APN::App.all 
    apps.each do |app| 
    app.send_notifications 
    print app.id.to_s + "..." 
    end 
    puts "done." 
end 

或者，如果你只有一個應用程序，你可以做到這一點，並用它做：

task :deliver_notifications => [:environment] do 
    APN::App.first.send_notifications 
end 

免責聲明：我還沒有測試這個舞臺上和生產（將在本週結束時這樣做），但我看不出爲什麼它不應該工作。