与S3 on Rails的回形针3 /未初始化的常量AWS :: S3 ::连接 [英] Paperclip with S3 on Rails 3 / uninitialized constant AWS::S3::Connection

问题描述

我想上传一个文件使用回形针S3并获得制作一个新的对象和引用变量时，这个错误：

• 在安装了AWS-S3宝石
• 的s3.yml文件具有正确的凭据

例如：

  A = At​​tachment.new
一份文件

NameError：未初始化不断AWS :: S3 ::连接
    从/Library/Ruby/Gems/1.8/gems/aws-s3-0.6.2/lib/aws/s3/extensions.rb:206:in`const_missing'
    从/Library/Ruby/Gems/1.8/gems/aws-s3-0.6.2/lib/aws/s3.rb:32
    从/Library/Ruby/Gems/1.8/gems/aws-s3-0.6.2/lib/aws/s3.rb:31:in`class_eval
    从/Library/Ruby/Gems/1.8/gems/aws-s3-0.6.2/lib/aws/s3.rb:31
    从/Library/Ruby/Gems/1.8/gems/paperclip-2.3.3/lib/paperclip/storage.rb:131:in'扩展'
    从/Library/Ruby/Gems/1.8/gems/paperclip-2.3.3/lib/paperclip/attachment.rb:269:in'延伸'
    从/Library/Ruby/Gems/1.8/gems/paperclip-2.3.3/lib/paperclip/attachment.rb:269:in`initialize_storage
    从/Library/Ruby/Gems/1.8/gems/paperclip-2.3.3/lib/paperclip/attachment.rb:51:in'初始化'
    从/Library/Ruby/Gems/1.8/gems/paperclip-2.3.3/lib/paperclip.rb:372:in'新'
    从/Library/Ruby/Gems/1.8/gems/paperclip-2.3.3/lib/paperclip.rb:372:in`attachment_for
    从/Library/Ruby/Gems/1.8/gems/paperclip-2.3.3/lib/paperclip.rb:270:in'文件'
    从（IRB）：6
 

和这里是附件模式是这样的：

 类附件＆LT;的ActiveRecord :: Base的
  belongs_to的：交

  has_attached_file：文件，
    ：存储=＆GT; ：S3，
    ：s3_credentials =＆GT; ＃{} RAILS_ROOT /config/s3.yml
    ：PATH =＆GT; /uploads/:attachment/:id/:style/:basename.:extension
    ：斗=＆GT; bucketname，
    ：s3_permissions =＆GT; ：public_read
结束
 

解决方案

竟然是与我已经离开了的Gemfile不同S3宝石冲突

I'm trying to upload a file to s3 using paperclip and get this error when making a new object and referencing the variable:

• the aws-s3 gem is installed
• the s3.yml file has the correct credentials

ie:

a = Attachment.new
a.file

NameError: uninitialized constant AWS::S3::Connection
    from /Library/Ruby/Gems/1.8/gems/aws-s3-0.6.2/lib/aws/s3/extensions.rb:206:in `const_missing'
    from /Library/Ruby/Gems/1.8/gems/aws-s3-0.6.2/lib/aws/s3.rb:32
    from /Library/Ruby/Gems/1.8/gems/aws-s3-0.6.2/lib/aws/s3.rb:31:in `class_eval'
    from /Library/Ruby/Gems/1.8/gems/aws-s3-0.6.2/lib/aws/s3.rb:31
    from /Library/Ruby/Gems/1.8/gems/paperclip-2.3.3/lib/paperclip/storage.rb:131:in `extended'
    from /Library/Ruby/Gems/1.8/gems/paperclip-2.3.3/lib/paperclip/attachment.rb:269:in `extend'
    from /Library/Ruby/Gems/1.8/gems/paperclip-2.3.3/lib/paperclip/attachment.rb:269:in `initialize_storage'
    from /Library/Ruby/Gems/1.8/gems/paperclip-2.3.3/lib/paperclip/attachment.rb:51:in `initialize'
    from /Library/Ruby/Gems/1.8/gems/paperclip-2.3.3/lib/paperclip.rb:372:in `new'
    from /Library/Ruby/Gems/1.8/gems/paperclip-2.3.3/lib/paperclip.rb:372:in `attachment_for'
    from /Library/Ruby/Gems/1.8/gems/paperclip-2.3.3/lib/paperclip.rb:270:in `file'
    from (irb):6

and here is what the Attachment model looks like:

class Attachment < ActiveRecord::Base
  belongs_to :post

  has_attached_file :file,
    :storage => :s3,
    :s3_credentials => "#{RAILS_ROOT}/config/s3.yml",
    :path => "/uploads/:attachment/:id/:style/:basename.:extension",
    :bucket => 'bucketname',
    :s3_permissions => :public_read
end

解决方案

turned out to be a conflict with a different s3 gem that i had left in the gemfile

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