ruby-on-rails-4 - Rails 4.2未定义方法`original_filename'

Question

我有一个带有文件附件字段的联系表单，在 Rails 4.0.5 上运行良好，但在 Rails 4.2 上给我上述错误。

我的目标是允许客户通过表单上传图像，并将图像附加到发送给网站管理员的管理员。我正在使用回形针来管理上传。

看法

= simple_form_for @inquiry, multipart: true do |f|
  = f.input :spam, as: :hidden
  = f.input :first_name
  = f.input :last_name
  = f.input :email
  = f.input :phone 
  = f.input :image, as: :file
  = f.button :submit, 'Send'

梅勒

class InquiryMailer < ActionMailer::Base
    default from: "foo1@foo.co.uk"

    def admin(inquiry)
        @inquiry = inquiry
        mail to: "foo@foo.co.uk", subject: "Foo Website Inquiry"
        if inquiry.image
          attachment_name = inquiry.image.original_filename
          attachments[attachment_name] = inquiry.image.read
       end
    end
end

控制器

class InquiriesController < ApplicationController

  def new
    @inquiry = Inquiry.new
  end

  def create
    redirect_to new_inquiry_path and return if params[:spam].present?
    @inquiry = Inquiry.new(inquiry_params)
    if @inquiry.valid?
      InquiryMailer.admin(@inquiry).deliver_now
      redirect_to new_inquiry_path
      flash[:success] = "Thank you for contacting Kitchen Worktops Surrey, we will be in touch."
    else
      flash[:error] = "Please correct the below errors and re-send"
      render :new
    end
  end

  private

  def inquiry_params
    params.require(:inquiry).permit(:first_name, :last_name, :email, :phone, :message, :image, :spam)
  end

end

模型

class Inquiry < ActiveRecord::Base

  validates :first_name, presence: true
  validates :last_name, presence: true
  validates :email, presence: true
  validates :message, presence: true

end

回形针.rb

Paperclip::Attachment.default_options[:storage] = :s3
Paperclip::Attachment.default_options[:s3_host_name] = 's3-eu-west-1.amazonaws.com'
Paperclip::Attachment.default_options[:url] = ':s3_domain_url'
Paperclip::Attachment.default_options[:path] = ':class/:attachment/:style/:filename'
Paperclip::Attachment.default_options[:s3_protocol] = 'http'
Paperclip::Attachment.default_options[:s3_credentials] = {
  :bucket => 'foo',
  :access_key_id => 'XXX',
  :secret_access_key => 'XXX' 
}

堆栈跟踪

Processing by InquiriesController#create as HTML
  Parameters: {"utf8"=>"✓", "authenticity_token"=>"nIy1mFEtqPIntG4k7o/THZUbKbBuOeN/YqOTFSYopYz2Jnj3aE+O27xzGi8RzInxnpe4UmG8IgxaxuQpJBRkBA==", "inquiry"=>{"spam"=>"", "first_name"=>"John", "last_name"=>"Smith", "email"=>"jsmith@gmail.com", "phone"=>"012324534", "image"=>#<ActionDispatch::Http::UploadedFile:0x007fa30fe757e8 @tempfile=#<Tempfile:/var/folders/vf/gjgb_xyx4g1c1z89vtgb47t40000gn/T/RackMultipart20150218-26958-1v263dp.JPG>, @original_filename="CA-01C_Package_1000px.JPG", @content_type="image/jpeg", @headers="Content-Disposition: form-data; name=\"inquiry[image]\"; filename=\"CA-01C_Package_1000px.JPG\"\r\nContent-Type: image/jpeg\r\n">, "message"=>"testing message field"}, "commit"=>"Send"}
  Rendered inquiry_mailer/admin.text.erb (0.1ms)

InquiryMailer#admin: processed outbound mail in 18.1ms
Completed 500 Internal Server Error in 24ms

NoMethodError - undefined method `original_filename' for "#<ActionDispatch::Http::UploadedFile:0x007fa30fe757e8>":String:
  app/mailers/inquiry_mailer.rb:8:in `admin'
  actionpack (4.2.0) lib/abstract_controller/base.rb:198:in `process_action'
  actionpack (4.2.0) lib/abstract_controller/callbacks.rb:20:in `block in process_action'
  activesupport (4.2.0) lib/active_support/callbacks.rb:88:in `_run_callbacks'
  activesupport (4.2.0) lib/active_support/callbacks.rb:734:in `_run_process_action_callbacks'
  activesupport (4.2.0) lib/active_support/callbacks.rb:81:in `run_callbacks'
  actionpack (4.2.0) lib/abstract_controller/callbacks.rb:19:in `process_action'
  actionpack (4.2.0) lib/abstract_controller/base.rb:137:in `process'
  actionview (4.2.0) lib/action_view/rendering.rb:30:in `process'
  actionmailer (4.2.0) lib/action_mailer/base.rb:596:in `block in process'
  activesupport (4.2.0) lib/active_support/notifications.rb:164:in `block in instrument'
  activesupport (4.2.0) lib/active_support/notifications/instrumenter.rb:20:in `instrument'
  activesupport (4.2.0) lib/active_support/notifications.rb:164:in `instrument'
  actionmailer (4.2.0) lib/action_mailer/base.rb:593:in `process'
  actionmailer (4.2.0) lib/action_mailer/base.rb:584:in `initialize'
  actionmailer (4.2.0) lib/action_mailer/message_delivery.rb:25:in `__getobj__'
  actionmailer (4.2.0) lib/action_mailer/message_delivery.rb:34:in `message'
  actionmailer (4.2.0) lib/action_mailer/message_delivery.rb:85:in `deliver_now'
  app/controllers/inquiries_controller.rb:14:in `create'
  actionpack (4.2.0) lib/action_controller/metal/implicit_render.rb:4:in `send_action'
  actionpack (4.2.0) lib/abstract_controller/base.rb:198:in `process_action'
  actionpack (4.2.0) lib/action_controller/metal/rendering.rb:10:in `process_action'
  actionpack (4.2.0) lib/abstract_controller/callbacks.rb:20:in `block in process_action'
  activesupport (4.2.0) lib/active_support/callbacks.rb:117:in `call'
  activesupport (4.2.0) lib/active_support/callbacks.rb:234:in `block in halting'
  activesupport (4.2.0) lib/active_support/callbacks.rb:169:in `block in halting'
  activesupport (4.2.0) lib/active_support/callbacks.rb:92:in `_run_callbacks'
  activesupport (4.2.0) lib/active_support/callbacks.rb:734:in `_run_process_action_callbacks'
  activesupport (4.2.0) lib/active_support/callbacks.rb:81:in `run_callbacks'
  actionpack (4.2.0) lib/abstract_controller/callbacks.rb:19:in `process_action'
  actionpack (4.2.0) lib/action_controller/metal/rescue.rb:29:in `process_action'
  actionpack (4.2.0) lib/action_controller/metal/instrumentation.rb:31:in `block in process_action'
  activesupport (4.2.0) lib/active_support/notifications.rb:164:in `block in instrument'
  activesupport (4.2.0) lib/active_support/notifications/instrumenter.rb:20:in `instrument'
  activesupport (4.2.0) lib/active_support/notifications.rb:164:in `instrument'
  actionpack (4.2.0) lib/action_controller/metal/instrumentation.rb:30:in `process_action'
  actionpack (4.2.0) lib/action_controller/metal/params_wrapper.rb:250:in `process_action'
  activerecord (4.2.0) lib/active_record/railties/controller_runtime.rb:18:in `process_action'
  actionpack (4.2.0) lib/abstract_controller/base.rb:137:in `process'
  actionview (4.2.0) lib/action_view/rendering.rb:30:in `process'
  actionpack (4.2.0) lib/action_controller/metal.rb:195:in `dispatch'
  actionpack (4.2.0) lib/action_controller/metal/rack_delegation.rb:13:in `dispatch'
  actionpack (4.2.0) lib/action_controller/metal.rb:236:in `block in action'
  actionpack (4.2.0) lib/action_dispatch/routing/route_set.rb:73:in `dispatch'
  actionpack (4.2.0) lib/action_dispatch/routing/route_set.rb:42:in `serve'
  actionpack (4.2.0) lib/action_dispatch/journey/router.rb:43:in `block in serve'
  actionpack (4.2.0) lib/action_dispatch/journey/router.rb:30:in `serve'
  actionpack (4.2.0) lib/action_dispatch/routing/route_set.rb:802:in `call'
  rack (1.6.0) lib/rack/etag.rb:24:in `call'
  rack (1.6.0) lib/rack/conditionalget.rb:38:in `call'
  rack (1.6.0) lib/rack/head.rb:13:in `call'
  actionpack (4.2.0) lib/action_dispatch/middleware/params_parser.rb:27:in `call'
  actionpack (4.2.0) lib/action_dispatch/middleware/flash.rb:260:in `call'
  rack (1.6.0) lib/rack/session/abstract/id.rb:225:in `context'
  rack (1.6.0) lib/rack/session/abstract/id.rb:220:in `call'
  actionpack (4.2.0) lib/action_dispatch/middleware/cookies.rb:560:in `call'
  activerecord (4.2.0) lib/active_record/query_cache.rb:36:in `call'
  activerecord (4.2.0) lib/active_record/connection_adapters/abstract/connection_pool.rb:647:in `call'
  activerecord (4.2.0) lib/active_record/migration.rb:378:in `call'
  actionpack (4.2.0) lib/action_dispatch/middleware/callbacks.rb:29:in `block in call'
  activesupport (4.2.0) lib/active_support/callbacks.rb:88:in `_run_callbacks'
  activesupport (4.2.0) lib/active_support/callbacks.rb:734:in `_run_call_callbacks'
  activesupport (4.2.0) lib/active_support/callbacks.rb:81:in `run_callbacks'
  actionpack (4.2.0) lib/action_dispatch/middleware/callbacks.rb:27:in `call'
  actionpack (4.2.0) lib/action_dispatch/middleware/reloader.rb:73:in `call'
  actionpack (4.2.0) lib/action_dispatch/middleware/remote_ip.rb:78:in `call'
  better_errors (2.1.1) lib/better_errors/middleware.rb:84:in `protected_app_call'
  better_errors (2.1.1) lib/better_errors/middleware.rb:79:in `better_errors_call'
  better_errors (2.1.1) lib/better_errors/middleware.rb:57:in `call'
  actionpack (4.2.0) lib/action_dispatch/middleware/debug_exceptions.rb:17:in `call'
  actionpack (4.2.0) lib/action_dispatch/middleware/show_exceptions.rb:30:in `call'
  railties (4.2.0) lib/rails/rack/logger.rb:38:in `call_app'
  railties (4.2.0) lib/rails/rack/logger.rb:20:in `block in call'
  activesupport (4.2.0) lib/active_support/tagged_logging.rb:68:in `block in tagged'
  activesupport (4.2.0) lib/active_support/tagged_logging.rb:26:in `tagged'
  activesupport (4.2.0) lib/active_support/tagged_logging.rb:68:in `tagged'
  railties (4.2.0) lib/rails/rack/logger.rb:20:in `call'
  actionpack (4.2.0) lib/action_dispatch/middleware/request_id.rb:21:in `call'
  rack (1.6.0) lib/rack/methodoverride.rb:22:in `call'
  rack (1.6.0) lib/rack/runtime.rb:18:in `call'
  activesupport (4.2.0) lib/active_support/cache/strategy/local_cache_middleware.rb:28:in `call'
  rack (1.6.0) lib/rack/lock.rb:17:in `call'
  actionpack (4.2.0) lib/action_dispatch/middleware/static.rb:113:in `call'
  rack (1.6.0) lib/rack/sendfile.rb:113:in `call'
  railties (4.2.0) lib/rails/engine.rb:518:in `call'
  railties (4.2.0) lib/rails/application.rb:164:in `call'
  rack (1.6.0) lib/rack/lock.rb:17:in `call'
  rack (1.6.0) lib/rack/content_length.rb:15:in `call'
  rack (1.6.0) lib/rack/handler/webrick.rb:89:in `service'
  /Users/Dan/.rvm/rubies/ruby-2.2.0/lib/ruby/2.2.0/webrick/httpserver.rb:138:in `service'
  /Users/Dan/.rvm/rubies/ruby-2.2.0/lib/ruby/2.2.0/webrick/httpserver.rb:94:in `run'
  /Users/Dan/.rvm/rubies/ruby-2.2.0/lib/ruby/2.2.0/webrick/server.rb:294:in `block in start_thread'