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我现在使用 Communityengine 启动并运行了我的 rails 应用程序，但不知何故我无法使图像上传工作。

在标准安装中，当我尝试上传图像时，总是会出现此错误：

Photo /tmp/stream20130319-18602-13k89ab.gif is not recognized by the 'identify' command.

Imagemagick 已正确安装，并且 identify-command 有效。/tmp/ 文件夹的权限也是正确的。所以我对这个问题一无所知=（。

为了解决这个问题，我尝试使用 Amazon S3 进行存储，因为我不介意图像来自哪里（请参阅此处）。我将正确填写的 s3.yml 复制到应用程序 /config/ 文件夹中。我在我的 Gemfile 中使用 gem“aws-sdk”，如下所示：Paperclip；我像这样更新了application_config.rb：

:photo => {
    :missing_thumb => '/assets/icon_missing_thumb.gif',
    :missing_medium => "/assets/icon_missing_medium.gif",
    :paperclip_options => {
      :storage => 's3',
      :styles => {
        :thumb => {
          :geometry => '100x66#',
          :processors => [:cropper]
        },
        :medium => {
          :geometry => '300x200#',
          :processors => [:cropper]
        },
        :large => {
          :geometry => '600x400#',
          :processors => [:cropper]
        },   
        :original => "1024>"       
      }
    },
    :validation_options => {
      :max_size => 3,
      :content_type => ['image/jpg', 'image/jpeg', 'image/pjpeg', 'image/gif', 'image/png', 'image/x-png']          
    }
  },

  :feature => {
    :use_thumbs => true,
    :paperclip_options => {
      :storage => 's3',
      :styles => {
        :thumb => "100x66#",
        :medium => '300x200#',
        :large => "600x400#",
        :original => '1024>'             
      }
    },
    :validation_options => {
      :max_size => 3,
      :content_type => ['image/jpg', 'image/jpeg', 'image/pjpeg', 'image/gif', 'image/png', 'image/x-png']          
    }
  },

  :clipping => {
    :paperclip_options => {
      :storage => 's3',
      :styles => {
        :thumb => "100x66#",
        :medium => "300x200#",
        :large => "600x400#",
        :original => '1024>'     
      }
    },
    :validation_options => {
      :max_size => 3,
      :content_type => ['image/jpg', 'image/jpeg', 'image/pjpeg', 'image/gif', 'image/png', 'image/x-png']              
    }
  },

当我尝试编辑用户配置文件或上传图像时，我收到此错误：未初始化的常量 AWS::S3::Base Full Trace here：

 paperclip (2.4.5) lib/paperclip/storage/s3.rb:101:in `block in extended'
paperclip (2.4.5) lib/paperclip/storage/s3.rb:79:in `instance_eval'
paperclip (2.4.5) lib/paperclip/storage/s3.rb:79:in `extended'
paperclip (2.4.5) lib/paperclip/attachment.rb:392:in `extend'
paperclip (2.4.5) lib/paperclip/attachment.rb:392:in `initialize_storage'
paperclip (2.4.5) lib/paperclip/attachment.rb:73:in `initialize'
paperclip (2.4.5) lib/paperclip.rb:448:in `new'
paperclip (2.4.5) lib/paperclip.rb:448:in `attachment_for'
paperclip (2.4.5) lib/paperclip.rb:337:in `block in has_attached_file'
activerecord (3.2.11) lib/active_record/attribute_assignment.rb:85:in `block in assign_attributes'
activerecord (3.2.11) lib/active_record/attribute_assignment.rb:78:in `each'
activerecord (3.2.11) lib/active_record/attribute_assignment.rb:78:in `assign_attributes'
activerecord (3.2.11) lib/active_record/base.rb:497:in `initialize'
/home/martin/.bundler/ruby/1.9.1/communityengine-281d49916dbc/app/controllers/photos_controller.rb:104:in `new'
/home/martin/.bundler/ruby/1.9.1/communityengine-281d49916dbc/app/controllers/photos_controller.rb:104:in `create'
actionpack (3.2.11) lib/action_controller/metal/implicit_render.rb:4:in `send_action'
actionpack (3.2.11) lib/abstract_controller/base.rb:167:in `process_action'
actionpack (3.2.11) lib/action_controller/metal/rendering.rb:10:in `process_action'
actionpack (3.2.11) lib/abstract_controller/callbacks.rb:18:in `block in process_action'
activesupport (3.2.11) lib/active_support/callbacks.rb:460:in `block (2 levels) in _run__141873283__process_action__116704501__callbacks'
activesupport (3.2.11) lib/active_support/callbacks.rb:215:in `block in _conditional_callback_around_1705'
activesupport (3.2.11) lib/active_support/callbacks.rb:326:in `around'
activesupport (3.2.11) lib/active_support/callbacks.rb:310:in `_callback_around_1685'
activesupport (3.2.11) lib/active_support/callbacks.rb:214:in `_conditional_callback_around_1705'
activesupport (3.2.11) lib/active_support/callbacks.rb:459:in `block in _run__141873283__process_action__116704501__callbacks'
activesupport (3.2.11) lib/active_support/callbacks.rb:215:in `block in _conditional_callback_around_1704'
/home/martin/.bundler/ruby/1.9.1/communityengine-281d49916dbc/lib/community_engine/localized_application.rb:25:in `set_locale'
activesupport (3.2.11) lib/active_support/callbacks.rb:214:in `_conditional_callback_around_1704'
activesupport (3.2.11) lib/active_support/callbacks.rb:414:in `_run__141873283__process_action__116704501__callbacks'
activesupport (3.2.11) lib/active_support/callbacks.rb:405:in `__run_callback'
activesupport (3.2.11) lib/active_support/callbacks.rb:385:in `_run_process_action_callbacks'
activesupport (3.2.11) lib/active_support/callbacks.rb:81:in `run_callbacks'
actionpack (3.2.11) lib/abstract_controller/callbacks.rb:17:in `process_action'
actionpack (3.2.11) lib/action_controller/metal/rescue.rb:29:in `process_action'
actionpack (3.2.11) lib/action_controller/metal/instrumentation.rb:30:in `block in process_action'
activesupport (3.2.11) lib/active_support/notifications.rb:123:in `block in instrument'
activesupport (3.2.11) lib/active_support/notifications/instrumenter.rb:20:in `instrument'
activesupport (3.2.11) lib/active_support/notifications.rb:123:in `instrument'
actionpack (3.2.11) lib/action_controller/metal/instrumentation.rb:29:in `process_action'
actionpack (3.2.11) lib/action_controller/metal/params_wrapper.rb:207:in `process_action'
activerecord (3.2.11) lib/active_record/railties/controller_runtime.rb:18:in `process_action'
actionpack (3.2.11) lib/abstract_controller/base.rb:121:in `process'
actionpack (3.2.11) lib/abstract_controller/rendering.rb:45:in `process'
actionpack (3.2.11) lib/action_controller/metal.rb:203:in `dispatch'
actionpack (3.2.11) lib/action_controller/metal/rack_delegation.rb:14:in `dispatch'
actionpack (3.2.11) lib/action_controller/metal.rb:246:in `block in action'
actionpack (3.2.11) lib/action_dispatch/routing/route_set.rb:73:in `call'
actionpack (3.2.11) lib/action_dispatch/routing/route_set.rb:73:in `dispatch'
actionpack (3.2.11) lib/action_dispatch/routing/route_set.rb:36:in `call'
journey (1.0.4) lib/journey/router.rb:68:in `block in call'
journey (1.0.4) lib/journey/router.rb:56:in `each'
journey (1.0.4) lib/journey/router.rb:56:in `call'
actionpack (3.2.11) lib/action_dispatch/routing/route_set.rb:601:in `call'
rakismet (1.3.0) lib/rakismet/middleware.rb:10:in `call'
omniauth (1.1.2) lib/omniauth/strategy.rb:177:in `call!'
omniauth (1.1.2) lib/omniauth/strategy.rb:157:in `call'
omniauth (1.1.2) lib/omniauth/builder.rb:48:in `call'
actionpack (3.2.11) lib/action_dispatch/middleware/best_standards_support.rb:17:in `call'
rack (1.4.5) lib/rack/etag.rb:23:in `call'
rack (1.4.5) lib/rack/conditionalget.rb:35:in `call'
actionpack (3.2.11) lib/action_dispatch/middleware/head.rb:14:in `call'
actionpack (3.2.11) lib/action_dispatch/middleware/params_parser.rb:21:in `call'
actionpack (3.2.11) lib/action_dispatch/middleware/flash.rb:242:in `call'
rack (1.4.5) lib/rack/session/abstract/id.rb:210:in `context'
rack (1.4.5) lib/rack/session/abstract/id.rb:205:in `call'
actionpack (3.2.11) lib/action_dispatch/middleware/cookies.rb:341:in `call'
activerecord (3.2.11) lib/active_record/query_cache.rb:64:in `call'
activerecord (3.2.11) lib/active_record/connection_adapters/abstract/connection_pool.rb:479:in `call'
actionpack (3.2.11) lib/action_dispatch/middleware/callbacks.rb:28:in `block in call'
activesupport (3.2.11) lib/active_support/callbacks.rb:405:in `_run__284061703__call__288038654__callbacks'
activesupport (3.2.11) lib/active_support/callbacks.rb:405:in `__run_callback'
activesupport (3.2.11) lib/active_support/callbacks.rb:385:in `_run_call_callbacks'
activesupport (3.2.11) lib/active_support/callbacks.rb:81:in `run_callbacks'
actionpack (3.2.11) lib/action_dispatch/middleware/callbacks.rb:27:in `call'
actionpack (3.2.11) lib/action_dispatch/middleware/reloader.rb:65:in `call'
actionpack (3.2.11) lib/action_dispatch/middleware/remote_ip.rb:31:in `call'
actionpack (3.2.11) lib/action_dispatch/middleware/debug_exceptions.rb:16:in `call'
actionpack (3.2.11) lib/action_dispatch/middleware/show_exceptions.rb:56:in `call'
railties (3.2.11) lib/rails/rack/logger.rb:32:in `call_app'
railties (3.2.11) lib/rails/rack/logger.rb:16:in `block in call'
activesupport (3.2.11) lib/active_support/tagged_logging.rb:22:in `tagged'
railties (3.2.11) lib/rails/rack/logger.rb:16:in `call'
actionpack (3.2.11) lib/action_dispatch/middleware/request_id.rb:22:in `call'
rack (1.4.5) lib/rack/methodoverride.rb:21:in `call'
rack (1.4.5) lib/rack/runtime.rb:17:in `call'
activesupport (3.2.11) lib/active_support/cache/strategy/local_cache.rb:72:in `call'
rack (1.4.5) lib/rack/lock.rb:15:in `call'
actionpack (3.2.11) lib/action_dispatch/middleware/static.rb:62:in `call'
railties (3.2.11) lib/rails/engine.rb:479:in `call'
railties (3.2.11) lib/rails/application.rb:223:in `call'
rack (1.4.5) lib/rack/content_length.rb:14:in `call'
railties (3.2.11) lib/rails/rack/log_tailer.rb:17:in `call'
rack (1.4.5) lib/rack/handler/webrick.rb:59:in `service'
/usr/lib/ruby/1.9.1/webrick/httpserver.rb:138:in `service'
/usr/lib/ruby/1.9.1/webrick/httpserver.rb:94:in `run'
/usr/lib/ruby/1.9.1/webrick/server.rb:191:in `block in start_thread'

有人能帮我一下吗？我真的坚持这一点。

4

2 回答 2

1

Paperclip 2.4.5 仍然使用 aws-s3 gem。

将您的 Gemfile 行更改为：

gem "aws-s3", :require => "aws/s3"

或者使用 master 分支而不是稳定版本（这当然有一些风险）：

gem 'paperclip', :git => "git://github.com/thoughtbot/paperclip.git"
gem "aws-sdk"

更新： Paperclip 2.5.0，于 2012 年 1 月 13 日发布，现在使用 aws-sdk

对于您的第二个问题，我正在更新此答案

主要问题是您需要将以下代码移动到它自己的初始化文件中：

if Rails.env == "production" 
   S3_CREDENTIALS = { :access_key_id => ENV['S3_KEY'], :secret_access_key => ENV['S3_SECRET'], :bucket => "ourbucket"} 
 else 
   S3_CREDENTIALS = Rails.root.join("config/s3.yml")
end

然后，您应该将以下行添加到具有 *has_attached_file 的模型中：photo* 要添加的行是。

:s3_credentials => S3_CREDENTIALS,

这就是你之前所缺少的。

此外，当您声明您的存储桶名称时，请确保这是我们的标准。如果您使用其他位置之一，则必须适当地更新路径。

希望这可以帮助！

于 2013-03-19T11:17:01.657 回答
0

我现在解决了这个问题！CommunityEngine 的 Jquery-Bootstrap 分支使用回形针 2.4.5，这个问题在较新的版本中得到解决。

我在 Github 上 fork Communityengine 并将回形针依赖更新到 2.7.4。只需将其替换为community_engine.gemspec：

s.add_dependency(%q<paperclip>, ["~> 2.4.3"])

有了这个：

s.add_dependency(%q<paperclip>, ["~> 2.7.4"])

另一个问题是较新的版本在 S3 凭据中需要“bucket”而不是“bucket_name”（我以这种方式搞砸了）。

于 2013-03-20T15:02:22.480 回答