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我正在尝试在这里使用回形针保管箱 gem ，但我在设置和传递我的凭据时遇到了问题。

在文档中，模型中的设置是这样完成的：

class User < ActiveRecord::Base
  has_attached_file :avatar,
   :storage => :dropbox,
   :dropbox_credentials => "#{Rails.root}/config/dropbox.yml",
   :dropbox_options => {...}
end

我已经配置了我的 dropbox.yml 文件并将其放入 /config 文件夹，但 rails 告诉我该文件或目录不存在。

如果我使用环境变量在哈希中传递我的凭据，

:dropbox_credentials => {
                  app_key: ENV["DROPBOX_APP_KEY"],
                  app_secret: ENV["DROPBOX_APP_SECRET"],
                  access_token: ENV["DROPBOX_ACCESS_TOKEN"],
                  access_token_secret: ENV["DROPBOX_ACCESS_TOKEN_SECRET"],
                  user_id: ENV["DROPBOX_USER_ID"]
                }
:dropbox_options => {
                  :path => ":attachment/:id/:basename.:extension"
                }

堆栈跟踪的顶部是：

paperclip-dropbox (1.0.0) lib/paperclip/storage/dropbox.rb:59:in `path_for_url'
paperclip-dropbox (1.0.0) lib/paperclip/storage/dropbox.rb:55:in `path'
paperclip-dropbox (1.0.0) lib/paperclip/storage/dropbox.rb:41:in `exists?'
paperclip (3.2.0) lib/paperclip/attachment.rb:436:in `block in queue_all_for_delete'
paperclip (3.2.0) lib/paperclip/attachment.rb:435:in `map'
paperclip (3.2.0) lib/paperclip/attachment.rb:435:in `queue_all_for_delete'
paperclip (3.2.0) lib/paperclip/attachment.rb:213:in `clear'
paperclip (3.2.0) lib/paperclip/attachment.rb:94:in `assign'
paperclip (3.2.0) lib/paperclip.rb:196:in `block in has_attached_file'
activerecord (3.2.6) lib/active_record/attribute_assignment.rb:85:in `block in       assign_attributes'
activerecord (3.2.6) lib/active_record/attribute_assignment.rb:78:in `each'
activerecord (3.2.6) lib/active_record/attribute_assignment.rb:78:in `assign_attributes'
activerecord (3.2.6) lib/active_record/persistence.rb:212:in `block in   update_attributes'
activerecord (3.2.6) lib/active_record/transactions.rb:295:in `block in   with_transaction_returning_status'
activerecord (3.2.6)  lib/active_record/connection_adapters/abstract/database_statements.rb:192:in `transaction'
activerecord (3.2.6) lib/active_record/transactions.rb:208:in `transaction'
activerecord (3.2.6) lib/active_record/transactions.rb:293:in  `with_transaction_returning_status'
activerecord (3.2.6) lib/active_record/persistence.rb:211:in `update_attributes'
app/controllers/users_controller.rb:45:in `update'

然后 rails 说“错误的参数类型字符串预期 Proc”

我是 ruby​​ 新手，不太了解 procs。我该如何解决这个问题才能让它工作？

4

1 回答 1

2

根据自述文件，paperclip-dropbox 需要路径的 proc。你的路径中的参数是否:avatar意味着什么，或者这意味着是一个静态部分？

我认为你需要尝试这样的事情：

:path => proc { |style| "avatars/#{id}/#{style}/#{avatar.original_filename}" }

您也可以在没有|style|变量的情况下尝试它，但您可能会收到错误数量的参数错误。通常，您会定义其他样式以自动将图像缩放到您网站上所需的尺寸 - 查看文档以获取更多信息。

于 2012-10-26T20:53:37.960 回答