Question

我正在尝试上传到我构建的投资组合应用程序，特别是试图找到将delayed_job挂钩到进程的位置。一切都是有效的。现在它在undefined method 'call' for #<Class:0xae68750>上返回app/controllers/portfolio_items_controller.rb:18:in 'create'所以这是我的模型和控制器的那部分......任何人都可以看到任何可能出错的地方？我现在使用的钩子是我从这个博客得到的：http://madeofcode.com/posts/42-paperclip-s3-delayed-job-in-rails

/app/controllers/portfolio_items_controller.rb

def create
  @portfolio_item = PortfolioItem.new(params[:portfolio_item])
  if @portfolio_item.save
    flash[:notice] = "Portfolio item created. As soon as files are uploaded Portfolio item will be made live."
    redirect_to @portfolio_item
  else
    render :action => 'new'
  end
end

/app/models/asset.rb

class Asset < ActiveRecord::Base
  attr_accessible :image, :image_file_name, :image_content_type, :image_file_size, :portfolio_item_id, :order

  belongs_to :portfolio_item

  has_attached_file :image,
    :styles => {
      :thumb => "20x20#",
      :small => "100x100",
      :large => "600x600>"
               },
    :storage => :s3,
    :s3_credentials => {
      :access_key_id => ENV["S3_KEY"],
      :secret_access_key => ENV["S3_SECRET"]
                       },
    :bucket => ENV["S3_BUCKET"],
    :path => "portfolio/:attachment/:id/:style/:basename.:extension"

  before_source_post_process do |image|
    if source_changed?
      processing = true
      false
    end
  end

  after_save do |image|
    if image.source_changed?
      Delayed::Job.enqueue ImageJob.new(image.id)
    end
  end

  def regenerate_styles!
    self.source.reprocess!
    self.processing = false
    self.save(false)
  end

  def source_changed?
    self.source_file_size_changed? ||
    self.source_file_name_changed? ||
    self.source_content_type_changed? ||
    self.source_update_at_changed?
  end
end

class ImageJob < Struct.new(:image_id)
  def perform
    Image.find(self.image_id).regenerate_styles!
  end
end

编辑：感谢善良的人们，不再是失踪的.new了。但现在是没有定义before_source_post_process？除了那篇博文和这个问题，我无法在任何地方找到这种方法。有什么更合适的吗？

Answer 1

before_source_post_process不适合你。它仅适用于：

has_attached_file :source

在你的情况下它应该是

before_image_post_process

同样，source_changed？方法应该是：

def source_changed?
  self.image_file_size_changed? ||
  self.image_file_name_changed? ||
  self.image_content_type_changed? ||
  self.image_update_at_changed?
end

Answer 2

我想这个：

 @portfolio_item = PortfolioItem.(params[:portfolio_item])

最有可能是这样的：

 @portfolio_item = PortfolioItem.new(params[:portfolio_item])

使用Paperclip上传到Heroku上的S3（delayed_job问题）

2 个答案: