Question

有问题的问题，刚刚兴起但以前工作过我得到了这段代码：

控制器

def new
errors ||= Array.new
if params[:file].blank? 
  errors.push(I18n.t("errors.messages.file_error"))
end
if errors.length == 0 
 # begin
 # 
  binding.pry
    assetObject = Assets.new(:asset=>params[:file])
    assetObject.save!
    image = assetObject.asset.url(:small)
    imageExpBanner = assetObject.asset.url(:expBanner)
    data = OpenStruct.new({
      id: assetObject.id,
      uri: image,
      expBannerUri: imageExpBanner
    })
    @responseObject = OpenStruct.new({
      status: true,
      errors: [],
      code: API_CODE_ERRORS['Services']['Global']['success'],
      objectData: data
    })
    render :template => 'api/v1/general/assets/new' ,:handlers => [:rabl],:formats => [:json]
  #rescue => e
  #  binding.pry
  #  logger.error e
   # errors.push(I18n.t("errors.messages.file_size_error"))
  #  render :json => Api::Init.ShowErrorJson(API_CODE_ERRORS['Services']['Global']['file_size'],I18n.t("errors.messages.feelike.input_error"), errors).to_json
# end
else
  render :json => Api::Init.ShowErrorJson(API_CODE_ERRORS['Services']['Global']['formInputError'],I18n.t("errors.messages.feelike.input_error"), errors).to_json
end

端

模型

类资产＆lt;的ActiveRecord ::基

  attr_accessible :asset,:asset_content_type, :asset_file_name, :asset_file_size

  has_attached_file :asset, :styles => { 
    :small => "150x150>" ,
    :expBanner => "620x184",
    :expBigImage => "304X304",
    :expSmallImage => "148X148",
    :storage => :s3,
    :s3_credentials => "#{Rails.root}/config/s3.yml",
    :path => "/uploads/:style/:id/:hash.:extension",
    :url  => :s3_eu_url ,
    :hash_secret => "longSecretString"
    }
    validates :asset, :attachment_presence => true
  validates_attachment_size :asset, :less_than => 10.megabytes
  validates_attachment_content_type :asset, :content_type => ['image/jpeg','image/gif', 'image/png']
end

现在它给我这个错误：

Started POST "/api/general/assets/new" for 127.0.0.1 at 2013-03-28 11:32:19 +0200
Processing by Api::V1::General::AssetsController#new as JSON
  Parameters: {"file"=>#<ActionDispatch::Http::UploadedFile:0x007fc39853ac10 @original_filename="usidentification.jpg", @content_type="image/jpeg", @headers="Content-Disposition: form-data; name=\"file\"; filename=\"usidentification.jpg\"\r\nContent-Type: image/jpeg\r\n", @tempfile=#<File:/tmp/RackMultipart20130328-15640-1hdj5ee>>}
WARNING: Can't verify CSRF token authenticity
Completed 500 Internal Server Error in 3491ms

TypeError - can't dup Symbol:
  (gem) paperclip-3.4.0/lib/paperclip/attachment.rb:176:in `block in styles'
  (gem) paperclip-3.4.0/lib/paperclip/attachment.rb:175:in `styles'
  (gem) paperclip-3.4.0/lib/paperclip/attachment.rb:421:in `post_process_styles'
  (gem) paperclip-3.4.0/lib/paperclip/attachment.rb:415:in `block (2 levels) in post_process'
  /usr/local/rvm/gems/ruby-1.9.3-p327@global/gems/activesupport-3.2.9/lib/active_support/callbacks.rb:403:in `_run__3148635882202100687__asset_post_process__2098004068316531280__callbacks'
  /usr/local/rvm/gems/ruby-1.9.3-p327@global/gems/activesupport-3.2.9/lib/active_support/callbacks.rb:405:in `__run_callback'
  /usr/local/rvm/gems/ruby-1.9.3-p327@global/gems/activesupport-3.2.9/lib/active_support/callbacks.rb:385:in `_run_asset_post_process_callbacks'
  /usr/local/rvm/gems/ruby-1.9.3-p327@global/gems/activesupport-3.2.9/lib/active_support/callbacks.rb:81:in `run_callbacks'
  (gem) paperclip-3.4.0/lib/paperclip/callbacks.rb:26:in `run_paperclip_callbacks'
  (gem) paperclip-3.4.0/lib/paperclip/attachment.rb:414:in `block in post_process'
  /usr/local/rvm/gems/ruby-1.9.3-p327@global/gems/activesupport-3.2.9/lib/active_support/callbacks.rb:403:in `_run__3148635882202100687__post_process__2098004068316531280__callbacks'
  /usr/local/rvm/gems/ruby-1.9.3-p327@global/gems/activesupport-3.2.9/lib/active_support/callbacks.rb:405:in `__run_callback'
  /usr/local/rvm/gems/ruby-1.9.3-p327@global/gems/activesupport-3.2.9/lib/active_support/callbacks.rb:385:in `_run_post_process_callbacks'
  /usr/local/rvm/gems/ruby-1.9.3-p327@global/gems/activesupport-3.2.9/lib/active_support/callbacks.rb:81:in `run_callbacks'
  (gem) paperclip-3.4.0/lib/paperclip/callbacks.rb:26:in `run_paperclip_callbacks'
  (gem) paperclip-3.4.0/lib/paperclip/attachment.rb:413:in `post_process'
  (gem) paperclip-3.4.0/lib/paperclip/attachment.rb:108:in `assign'

现在是什么剂量意味着TypeError - 不能重复符号现在我尝试了几种方法来解决这个问题并且每次都需要帮助

Answer 1

发现问题在那里

 has_attached_file :asset, :styles => { 
    :small => "150x150>" ,
    :expBanner => "620x184",
    :expBigImage => "304X304",
    :expSmallImage => "148X148",
},
    :storage => :s3,
    :s3_credentials => "#{Rails.root}/config/s3.yml",
    :path => "/uploads/:style/:id/:hash.:extension",
    :url  => :s3_eu_url ,
    :hash_secret => "longSecretString"

错误ruby“TypeError - 不能复制符号”在代码中

1 个答案: