Ruby on rails 4 Carrierwave+；ActiveAdmin，以文件和图像字段为例。结果是；“堆栈级别太深”；

我正在尝试在ActiveAdmin上创建一个文件和图像字段。例如

到目前为止我所拥有的

• 创建迁移以将文件和图像列添加到数据库
• 创建活动管理和编辑的显示表单
• 创建模型
• 创建了2个上传程序

我的代码导致“堆栈级别太深”错误

奇怪的是，代码与我的示例完全相同，效果很好

管理/product.rb

ActiveAdmin.register Product do
  permit_params :title, :image, :file

form(:html => { :multipart => true }) do |f|
   f.inputs "Create Product..." do
     f.input :title
     f.input :image, :as => :file, :hint => f.template.image_tag(f.object.image.url(:thumb))
     f.input :file, :as => :file

   end
     f.actions
 end
end

class Product < ActiveRecord::Base
    mount_uploader :file, FileProductsUploader
    mount_uploader :image, ImageProductsUploader
end

 class FileProductsUploader < CarrierWave::Uploader::Base
  storage :file

 def store_dir
   "#{Rails.root}/public/uploads/#{model.class.to_s.underscore}/#{mounted_as}/#{model.id}"
 end
end

  class ImageProductsUploader < CarrierWave::Uploader::Base
  include CarrierWave::RMagick
   storage :file

  def store_dir
    "#{Rails.root}/public/uploads/#{model.class.to_s.underscore}/#{mounted_as}/#{model.id}"
  end

  version :thumb do
     process :resize_to_fit => [250, 250]
  end
end

型号/产品.rb

ActiveAdmin.register Product do
  permit_params :title, :image, :file

form(:html => { :multipart => true }) do |f|
   f.inputs "Create Product..." do
     f.input :title
     f.input :image, :as => :file, :hint => f.template.image_tag(f.object.image.url(:thumb))
     f.input :file, :as => :file

   end
     f.actions
 end
end

class Product < ActiveRecord::Base
    mount_uploader :file, FileProductsUploader
    mount_uploader :image, ImageProductsUploader
end

 class FileProductsUploader < CarrierWave::Uploader::Base
  storage :file

 def store_dir
   "#{Rails.root}/public/uploads/#{model.class.to_s.underscore}/#{mounted_as}/#{model.id}"
 end
end

  class ImageProductsUploader < CarrierWave::Uploader::Base
  include CarrierWave::RMagick
   storage :file

  def store_dir
    "#{Rails.root}/public/uploads/#{model.class.to_s.underscore}/#{mounted_as}/#{model.id}"
  end

  version :thumb do
     process :resize_to_fit => [250, 250]
  end
end

---

没有一个在线解决方案适合我。我解决了更改本地临时目录的错误

上传程序/*

def cache_dir
   # should return path to cache dir
   Rails.root.join 'tmp/uploads'
end

---

您在管理和产品模型中都有允许的参数。请删除模型中的

product\u params

方法，然后再试一次。允许的参数现在仅在管理中定义，但是堆栈级别太深的错误仍然存在。您可以在此添加堆栈错误跟踪吗？问题现在已用错误消息更新。@anusha我可以使用

f.input:image，as:：file，提示：f.template.image\u标记（f.object.image\u url）查看上载图像的预览

但是编辑表单上显示了一些垃圾文本，如

#

如何解决此错误？