改进图像不加载-蜻蜓误差

Question

我正在开发一个在本地运行良好的精细化rails应用程序，现在我已经将它移到了我的VPS上，并且我在上传的图片中遇到了问题，我上传的图片没有加载，我一直在读到，我需要升级我的imagemagick版本。我从6.2.8升级到6.7.8。现在，图像全部加载在一些页面上，而不是在管理端。

是什么引起了这个问题？这是错误的堆栈跟踪。

Dragonfly::Shell::CommandFailed (Command failed (convert '/var/www/vhosts/tomstestsite.us/PersonalTrainingKT/public/system/refinery/images/2012/06/03/16_36_48_339_pamLemke_after.jpg' '-resize' '225x255>' '/tmp/dragonfly20120705-7812-1xb3pce') with exit status 127):
  dragonfly (0.9.12) lib/dragonfly/shell.rb:29:in `raise_shell_command_failed'
  dragonfly (0.9.12) lib/dragonfly/shell.rb:23:in `run'
  dragonfly (0.9.12) lib/dragonfly/image_magick/utils.rb:17:in `convert'
  dragonfly (0.9.12) lib/dragonfly/image_magick/processor.rb:103:in `convert'
  dragonfly (0.9.12) lib/dragonfly/image_magick/processor.rb:27:in `resize'
  dragonfly (0.9.12) lib/dragonfly/image_magick/processor.rb:87:in `thumb'
  dragonfly (0.9.12) lib/dragonfly/function_manager.rb:39:in `call'
  dragonfly (0.9.12) lib/dragonfly/function_manager.rb:39:in `block (2 levels) in call_last'
  dragonfly (0.9.12) lib/dragonfly/function_manager.rb:38:in `catch'
  dragonfly (0.9.12) lib/dragonfly/function_manager.rb:38:in `block in call_last'
  dragonfly (0.9.12) lib/dragonfly/function_manager.rb:37:in `each'
  dragonfly (0.9.12) lib/dragonfly/function_manager.rb:37:in `call_last'
  dragonfly (0.9.12) lib/dragonfly/processor.rb:5:in `process'
  dragonfly (0.9.12) lib/dragonfly/job.rb:79:in `apply'
  dragonfly (0.9.12) lib/dragonfly/job.rb:253:in `block in apply'
  dragonfly (0.9.12) lib/dragonfly/job.rb:253:in `each'
  dragonfly (0.9.12) lib/dragonfly/job.rb:253:in `apply'
  dragonfly (0.9.12) lib/dragonfly/response.rb:25:in `to_response'
  dragonfly (0.9.12) lib/dragonfly/server.rb:43:in `block in call'
  dragonfly (0.9.12) lib/dragonfly/server.rb:39:in `catch'
  dragonfly (0.9.12) lib/dragonfly/server.rb:39:in `call'
  dragonfly (0.9.12) lib/dragonfly/middleware.rb:11:in `call'
  rack-cache (1.2) lib/rack/cache/context.rb:136:in `forward'
  rack-cache (1.2) lib/rack/cache/context.rb:245:in `fetch'
  rack-cache (1.2) lib/rack/cache/context.rb:185:in `lookup'
  rack-cache (1.2) lib/rack/cache/context.rb:66:in `call!'
  rack-cache (1.2) lib/rack/cache/context.rb:51:in `call'
  rack-cache (1.2) lib/rack/cache/context.rb:136:in `forward'
  rack-cache (1.2) lib/rack/cache/context.rb:245:in `fetch'
  rack-cache (1.2) lib/rack/cache/context.rb:185:in `lookup'
  rack-cache (1.2) lib/rack/cache/context.rb:66:in `call!'
  rack-cache (1.2) lib/rack/cache/context.rb:51:in `call'
  actionpack (3.2.3) lib/action_dispatch/middleware/reloader.rb:65:in `call'
  actionpack (3.2.3) lib/action_dispatch/middleware/remote_ip.rb:31:in `call'
  actionpack (3.2.3) lib/action_dispatch/middleware/debug_exceptions.rb:16:in `call'
  actionpack (3.2.3) lib/action_dispatch/middleware/show_exceptions.rb:56:in `call'
  railties (3.2.3) lib/rails/rack/logger.rb:26:in `call_app'
  railties (3.2.3) lib/rails/rack/logger.rb:16:in `call'
  actionpack (3.2.3) lib/action_dispatch/middleware/request_id.rb:22:in `call'
  rack (1.4.1) lib/rack/methodoverride.rb:21:in `call'
  rack (1.4.1) lib/rack/runtime.rb:17:in `call'
  activesupport (3.2.3) lib/active_support/cache/strategy/local_cache.rb:72:in `call'
  rack (1.4.1) lib/rack/lock.rb:15:in `call'
  actionpack (3.2.3) lib/action_dispatch/middleware/static.rb:62:in `call'
  railties (3.2.3) lib/rails/engine.rb:479:in `call'
  railties (3.2.3) lib/rails/application.rb:220:in `call'
  railties (3.2.3) lib/rails/railtie/configurable.rb:30:in `method_missing'
  passenger (3.0.11) lib/phusion_passenger/rack/request_handler.rb:96:in `process_request'
  passenger (3.0.11) lib/phusion_passenger/abstract_request_handler.rb:513:in `accept_and_process_next_request'
  passenger (3.0.11) lib/phusion_passenger/abstract_request_handler.rb:274:in `main_loop'
  passenger (3.0.11) lib/phusion_passenger/classic_rails/application_spawner.rb:321:in `start_request_handler'
  passenger (3.0.11) lib/phusion_passenger/classic_rails/application_spawner.rb:275:in `block in handle_spawn_application'
  passenger (3.0.11) lib/phusion_passenger/utils.rb:479:in `safe_fork'
  passenger (3.0.11) lib/phusion_passenger/classic_rails/application_spawner.rb:270:in `handle_spawn_application'
  passenger (3.0.11) lib/phusion_passenger/abstract_server.rb:357:in `server_main_loop'
  passenger (3.0.11) lib/phusion_passenger/abstract_server.rb:206:in `start_synchronously'
  passenger (3.0.11) lib/phusion_passenger/abstract_server.rb:180:in `start'
  passenger (3.0.11) lib/phusion_passenger/classic_rails/application_spawner.rb:149:in `start'
  passenger (3.0.11) lib/phusion_passenger/spawn_manager.rb:219:in `block (2 levels) in spawn_rails_application'
  passenger (3.0.11) lib/phusion_passenger/abstract_server_collection.rb:132:in `lookup_or_add'
  passenger (3.0.11) lib/phusion_passenger/spawn_manager.rb:214:in `block in spawn_rails_application'
  passenger (3.0.11) lib/phusion_passenger/abstract_server_collection.rb:82:in `block in synchronize'
  <internal:prelude>:10:in `synchronize'
  passenger (3.0.11) lib/phusion_passenger/abstract_server_collection.rb:79:in `synchronize'
  passenger (3.0.11) lib/phusion_passenger/spawn_manager.rb:213:in `spawn_rails_application'
  passenger (3.0.11) lib/phusion_passenger/spawn_manager.rb:132:in `spawn_application'
  passenger (3.0.11) lib/phusion_passenger/spawn_manager.rb:275:in `handle_spawn_application'
  passenger (3.0.11) lib/phusion_passenger/abstract_server.rb:357:in `server_main_loop'
  passenger (3.0.11) lib/phusion_passenger/abstract_server.rb:206:in `start_synchronously'
  passenger (3.0.11) helper-scripts/passenger-spawn-server:99:in `<main>'

更新

我已经按照建议的这里将下面的代码添加到了config/application.rb文件中，它帮助了一些文件的出现，但是我仍然无法通过应用程序上传一个文件，下面是这个堆栈跟踪的一部分。

config/application.rb包含以下内容

initializer 'override-image-magick-paths', :after => 'attach-refinery-images-with-
    dragonfly' do
      app=Dragonfly[:refinery_images]
      app.configure_with(:imagemagick)
      app.configure do |c|
        c.convert_command = "/usr/local/bin/convert"          # defaults to "convert"
        c.identify_command = "/usr/local/bin/identify"        # defaults to "identify"
      end
    end

栈迹

 Dragonfly::Shell::CommandFailed (Command failed (identify '/tmp/RackMultipart20120708-20096-4m1k9j') with exit status 127):
      dragonfly (0.9.12) lib/dragonfly/shell.rb:29:in `raise_shell_command_failed'
      dragonfly (0.9.12) lib/dragonfly/shell.rb:23:in `run'
      dragonfly (0.9.12) lib/dragonfly/image_magick/utils.rb:34:in `raw_identify'
      dragonfly (0.9.12) lib/dragonfly/image_magick/utils.rb:24:in `identify'
      dragonfly (0.9.12) lib/dragonfly/image_magick/analyser.rb:44:in `format'
      dragonfly (0.9.12) lib/dragonfly/function_manager.rb:39:in `call'
      dragonfly (0.9.12) lib/dragonfly/function_manager.rb:39:in `block (2 levels) in call_last'
      dragonfly (0.9.12) lib/dragonfly/function_manager.rb:38:in `catch'
      dragonfly (0.9.12) lib/dragonfly/function_manager.rb:38:in `block in call_last'
      dragonfly (0.9.12) lib/dragonfly/function_manager.rb:37:in `each'
      dragonfly (0.9.12) lib/dragonfly/function_manager.rb:37:in `call_last'
      dragonfly (0.9.12) lib/dragonfly/analyser.rb:25:in `analyse'
      dragonfly (0.9.12) lib/dragonfly/job.rb:247:in `analyse'

Answer 1

我创建了一个符号链接，来自/usr/bin/转换-> /usr/local/bin/转换和/usr/bin/标识-> /usr/local/bin/标识，这似乎解决了我的问题。

$ cd /usr/bin
$ ln -s /usr/local/bin/convert convert
$ ln -s /usr/local/bin/identify identify 

我假设虽然我在config/application.rb文件中指定了转换和识别位置，但蜻蜓仍然没有获取它的位置。

Answer 2

我只需重新安装imagemagick，它就成功了。

Answer 3

您可能必须提供到convert的完整路径。

config/initializers/dragonfly.rb:

app.configure do |c|
  c.convert_command = "/usr/bin/convert"
end

将/usr/bin/convert更改为convert的正确路径，您可以通过在VPS上运行whereis convert来找到这个路径。

文档中的更多细节。