Question

我在我安装的APN on Rails gem上发出命令rake apn:notifications:deliver后，我正在努力解决此错误。

关于RAILS_ENV变量的咆哮。我尝试了一些将RAILS_ENV更改为Rails.env的分叉，但我仍然得到同样的错误。我在that repo上发布了我的问题，希望我可以到达某个地方。

我对岩石的了解还不够深入。我希望有人可以指出我正确的方向，以便我能够a）更好地了解出了什么问题并且b）解决问题。

我正在使用bundler，我将我的gem文件指向git repo：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

您使用哪个版本的Rails？我也遇到了这个问题。我的Rails知识不是很深，但似乎问题是RAILS_ *环境变量的弃用。我使用Rails 3.1.0而我没有：

RAILS_ROOT/ENV/blah

在我的环境中。相反，我有：

Rails.root/env/blah

当我用app / models / apn / app.rb中的Rails.env替换RAILS_ENV时，问题就会消失。

那么，这个gem是否与Rails 3.1.0兼容？似乎没有。是否有允许在生产环境中使用的解决方法？也许在某处定义：

APN::App::RAILS_ENV = Rails.env

但是在哪里？

更新：

我在这里使用了garyfoster描述的解决方法：https://github.com/PRX/apn_on_rails/issues/53。

总结一下，有三件事：

1）将此ghetto hack添加到config / environment.rb文件中：

APN::App::RAILS_ENV = Rails.env

2）将您的证书插入APN :: App表。我为此写了一次性的rake任务：

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）编写自己的rake任务，绕过APN :: App.send_notifications方法，因为barfs有另一个错误（关于'/config/apple_push_notification_development.pem'不存在）。我的代码：

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，如果您只有一个应用程序，则可以执行此操作并完成它：

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

免责声明：我还没有在分段和制作上测试这个（将在本周末完成），但我认为没有理由不这样做。

未初始化的常量APN :: App :: RAILS_ENV

1 个答案: