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我正在尝试将刚刚在我的应用程序中注册的用户在 facebook 或 twitter 上的现有图像上传到 amazon s3，但是一些验证不允许我保存用户对象，抛出：Image is invalid.我认为那是我的 extension_white_list但我删除了它，它一直在说Image is invalid.

  • 这不是错误，我认为这只是来自carrierwave 验证的消息，即使图像url 字符串是正确的。

头像上传者

# encoding: utf-8

class AvatarUploader < CarrierWave::Uploader::Base

  include CarrierWaveDirect::Uploader

  include CarrierWave::RMagick

  # Include the Sprockets helpers for Rails 3.1+ asset pipeline compatibility:
  include Sprockets::Helpers::RailsHelper
  include Sprockets::Helpers::IsolatedHelper

  include CarrierWave::MimeTypes
  process :set_content_type

  def store_dir
    "avatar/#{model.id}"
  end

  version :thumb do
    process resize_to_fill: [50, 50]
  end

  # def extension_white_list
  #   %w(jpg jpeg gif png bmp)
  # end
end

创建用户：

...
    new_user = User.create( :name => auth['info']['name'], 
                     :email => User.email_from_auth(auth) )
    auth_image_url = Authentication.larger_image(auth) # a string of user image url from social network authentication data. ie: http://a0.twimg.com/profile_images/1255111511/skyline.jpg
    unless auth_image_url.blank?
      new_user.remote_image_url = auth_image_url
      new_user.save
    end
...
4

1 回答 1

2

固定的！该错误与carrierwave无关，只是在上传图像时该对象在数据库中不存在，首先我保存新用户然后：

after_create :upload_image_from_auth

def upload_image_from_auth
  auth = self.authentications.first
  unless auth.nil?
    self.remote_image_url = auth.larger_image
    self.save
  end   
end
于 2012-12-06T02:58:14.897 回答