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Question

上载pdf时出现get错误:未捕获TypeError:无法读取null的属性'0‘

我的配置js：

 $(function(){
  var csrf_token = $('meta[name=csrf-token]').attr('content');
  var csrf_param = $('meta[name=csrf-param]').attr('content');
  var params;
  if (csrf_param !== undefined && csrf_token !== undefined) {
   params = csrf_param + "=" + encodeURIComponent(csrf_token);
  } 
  $('.redactor').redactor(
   { "imageUpload":"/redactor_rails/pictures?" + params,
     "fileUpload":"/redactor_rails/documents?" + params,
     "imageGetJson":"/redactor_rails/pictures",
     "path":"/assets/redactor-rails",
     "css":"style.css"}
  );

})；

RedactorRailsDocumentUploader：

  class RedactorRailsDocumentUploader < CarrierWave::Uploader::Base
   include RedactorRails::Backend::CarrierWave

   # storage :fog
   storage :file

   def store_dir
    "system/redactor_assets/documents/#{model.id}"
   end

   def extension_white_list
     RedactorRails.document_file_types
   end
  end

Answer 1

我怀疑这是因为你的RedactorRails.document_file_types中没有列出'PDF‘文件类型。

在redactor-rails gem中，它只列出'pdf'，而不是'PDF'，'Pdf‘等等。

除非您对此有安全需求，否则我将对此进行注释：

   def extension_white_list
     RedactorRails.document_file_types
   end