Question

这是一个奇怪的问题，不幸的是，它有许多潜在的来源。我正在使用carrierwave和cocoon gems来帮助嵌套文件上传。我在上传程序中执行的任何类型的版本处理都会导致堆栈级别太深的错误。如果我删除处理，它会正常保存嵌套图像。我试图做很多故障排除，并将其缩小到那个;例如，如果我只删除版本处理，那么它正常工作。如果我删除除版本处理之外的所有内容，它会抛出相同的错误。有很多潜在的来源，所以这里有一些代码：

父表单（截断）

<%= semantic_form_for [@object, @discussion], multipart: true , input_html: {class: "form-horizontal"} do |f| %>
     <div id="pictures">
      <%= f.semantic_fields_for :pictures do |p| %>
        <%= render 'picture_fields', :f => p %>
      <% end %>
      <div class="links">
        <%= link_to_add_association f, :pictures do %>
          <button type="button" class="btn btn-success btn-sm">Add Image</button>
        <% end %>
      </div>
    </div>
 <% end %>

嵌套表格

<div class="nested-fields">
 <div class="row">
  <div class="col-md-10">
    <%= f.input :pic, label: false %>
    <%= f.input :pic_cache, as: :hidden %>    
  </div>
  <div class="col-md-2 pull-right">
    <%= link_to_remove_association f do %>
     <button type="button" class="btn btn-danger btn-sm">REMOVE</button>
    <% end %>
   </div>
  </div>
 </div>

载

        # encoding: utf-8

class ImageUploader < CarrierWave::Uploader::Base

  # Include RMagick or MiniMagick support:
  include CarrierWave::RMagick
  # include CarrierWave::MiniMagick

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

  # Choose what kind of storage to use for this uploader:
  # storage :file
  # storage :fog

  # Override the directory where uploaded files will be stored.
  # This is a sensible default for uploaders that are meant to be mounted:
  def store_dir
    if Rails.env.test?
      "uploads/test/#{model.class.to_s.underscore}/#{mounted_as}/#{model.id}"
    else
      "uploads/#{model.class.to_s.underscore}/#{mounted_as}/#{model.id}"
    end
  end

  #custom method to access local files as full paths
  def local_path_or_remote_url
    if CarrierWave::Uploader::Base.storage.to_s == CarrierWave::Uploader::Base.storage_engines[:file]
      path
    else
      url
    end
  end

  # Process files as they are uploaded:
  # process :scale => [200, 300]
  #
  # def scale(width, height)
  #   # do something
  # end

  # Create different versions of your uploaded files:
  process :resize_to_fit => [400, 400]

  version :thumb do
    process :resize_to_fill => [72, 72]
  end


  # Add a white list of extensions which are allowed to be uploaded.
  # For images you might use something like this:
  def extension_white_list
     %w(jpg jpeg gif png)
  end

  # Override the filename of the uploaded files:
  # Avoid using model.id or version_name here, see uploader/store.rb for details.
  def filename
    "pic#{File.extname(original_filename).downcase}" if original_filename
  end

end

我有上传者使用基本相同的代码而没有问题。只有嵌套才能使这个版本控制代码出现问题。我知道可能会有很多潜在的来源。有什么想法吗？

Answer 1

这对我有用。

gem 'rmagick', :require => 'RMagick'

Answer 2

我从rmagick切换到mini_magick，它现在有效......

“堆栈级别太深”在嵌套表单中处理Carrierwave图像版本时

2 个答案: