编辑:通过将 s3 凭据直接包含在回形针模型(资产)中解决了以下问题,如下所示:
:s3_credentials => { :access_key_id => 'AAAAAAAAAOKSSISVNQ',
:secret_access_key => 'AAAAAAAAAAAAAAAAAAA1eWYh0au8Pg4bOnAmmX' ,
:bucket => 'my_bucket_name' },
将图像上传到 S3 时,现在出现了一个新问题:** AWS::Core::Client::NetworkError ** app/controllers/users/registrations_controller.rb:9:in `update'
这发生在我的本地 Windows 7 机器上,带有 rails 服务器,试图上传到我的 S3 存储桶。
原始问题:
我正在尝试使用回形针上传多个图像(资产),并将它们与我的用户模型一起保存在控制器更新操作中。我跟着这个回形针 S3 教程: http ://webtempest.com/how-to-allow-image-uploads-in-rails-on-heroku/
关于 Paperclip 的这个确切错误,我找到了 10 个左右不同的答案,但没有一个能解决我的问题。
如果我从我的资产模型中注释掉 S3 配置行,错误就会消失。
错误发生在我的registration_controller 中的更新操作中:
**undefined method `stringify_keys' for #<String:0x2a522d8>
app/controllers/users/registrations_controller.rb:8:in `update'**
{"utf8"=>"✓",
"_method"=>"put",
"authenticity_token"=>"ACFzngW4IXpuUDXutwHDCbpCuTjx2sFrZpcwBqt31LU=",
"user"=>{"nickname"=>"newuser1",
"first_name"=>"111",
"last_name"=>"222",
"birth_date"=>"2012-01-01 00:00:00.000000",
"email"=>"my_email@gmail.com",
"assets_attributes"=>{"0"=>{"asset"=>#<ActionDispatch::Http::UploadedFile:0x2a97a70 @original_filename="CIMG6275.JPG",
@content_type="image/jpeg",
@headers="Content-Disposition: form-data; name=\"user[assets_attributes][0][asset]\"; <br/>filename=\"CIMG6275.JPG\"\r\nContent-Type: image/jpeg\r\n",
@tempfile=#<File:C:/Users/AA/AppData/Local/Temp/RackMultipart20120905-7504-7sivk1>>}},
"instrument_ids"=>["1",
"2",
"3"],
"id"=>"9"},
"commit"=>"Update"}
这是我的用户模型中重要的部分:
class User < ActiveRecord::Base
devise :database_authenticatable, :registerable,
:recoverable, :rememberable, :trackable, :validatable
attr_accessible :id, :email, :password, :password_confirmation, :remember_me,
first_name, :last_name, :birth_date, :nickname, :instrument_ids, :assets,:assets_attributes
has_many :assets
accepts_nested_attributes_for :assets, :allow_destroy => true
...
资产模型(这是附件回形针对象):
class Asset < ActiveRecord::Base
belongs_to :user
has_attached_file :asset,
:whiny => false,
:styles => { :large=>"640x480g", :medium => "300x300>", :thumb => "100x100>" },
:storage => :s3,
:s3_credentials => "#{Rails.root}/config/s3.yml",
:path => ":attachment/:id/:style.:extension",
:bucket => 'name_of_my_bucket'
end
我的控制器更新代码:
class Users::RegistrationsController < Devise::RegistrationsController
public
def update
params[:user][:instrument_ids] ||= []
@user = User.find(params[:user][:id])
if @user.update_without_password(params[:user])
respond_to do |format|
format.html { redirect_to root_path }
format.xml { head :ok }
end
else
respond_to do |format|
format.html { render :action => "edit", :layout => "dialog" }
format.xml { render :xml => @user.errors, :status => :unprocessable_entity }
end
end
end
...
重要的用户视图部分:
<%= form_for(resource, :as => resource_name, :url => registration_path(resource_name), :html => { :method => :put, :multipart => true }) do |f| %>
<%= devise_error_messages! %>
<% counter = 1 %>
<%= f.fields_for :assets do |asset_fields| %>
<% if asset_fields.object.new_record? %>
<%= f.label "Image #{counter}" %>
<% counter = counter + 1 %>
<%= asset_fields.file_field :asset %>
<%= asset_fields.label :asset_file_name %>
<% end %>
<% end %>
schema.rb 文件中的 Asset 模型:
create_table "assets", :force => true do |t|
t.string "asset_file_name"
t.string "asset_content_type"
t.integer "asset_file_size"
t.datetime "asset_updated_at"
t.integer "user_id"
t.datetime "created_at", :null => false
t.datetime "updated_at", :null => false
end
最后,gemfile 的一部分:
gem 'jquery-rails'
gem 'aws-s3'
gem 'aws-sdk'
gem 'devise'
gem 'cancan'
gem 'omniauth-facebook'
gem 'omniauth'
gem 'roo'
gem 'client_side_validations'
gem 'sqlite3'
gem 'nifty-generators'
gem 'paperclip'
s3.yml: access_key_id: AKUAJO4RGQ4TKSSIQVNB
secret_access_key: UGiDBv2rohLJdIHNSQK3N1eWYh0au8Pg4bOnAxxY
bucket: my_bucket_name
我在上面修改了几个字符只是为了安全起见
提前致谢, 亚历克斯