Question

提交简单的多部分表单时，服务器崩溃并显示＆＃34;内部服务器错误＆＃34;。我已将表格缩小到最小值：

<%= form_for @media_object, :html => {:multipart => true} do |f| %>
    <%= f.file_field :media_object_image %>
    <%= f.submit "Create!" %>
<% end %>

日志跟踪：

ERROR ArgumentError: unexpected prefix: {"RackMultipart"=>nil, ""=>nil}
    /Users/christer/.rvm/rubies/ruby-2.3.0/lib/ruby/2.3.0/tmpdir.rb:111:in `make_tmpname'
    /Users/christer/.rvm/rubies/ruby-2.3.0/lib/ruby/2.3.0/tmpdir.rb:129:in `create'
    /Users/christer/.rvm/rubies/ruby-2.3.0/lib/ruby/2.3.0/tempfile.rb:132:in `initialize'
    /Users/christer/.rvm/gems/ruby-2.3.0@teamhubs4/gems/rack-1.6.4/lib/rack/multipart/parser.rb:22:in `new'
    /Users/christer/.rvm/gems/ruby-2.3.0@teamhubs4/gems/rack-1.6.4/lib/rack/multipart/parser.rb:22:in `block in create'
    /Users/christer/.rvm/gems/ruby-2.3.0@teamhubs4/gems/rack-1.6.4/lib/rack/multipart/parser.rb:135:in `get_current_head_and_filename_and_content_type_and_name_and_body'
    /Users/christer/.rvm/gems/ruby-2.3.0@teamhubs4/gems/rack-1.6.4/lib/rack/multipart/parser.rb:59:in `block in parse'
    /Users/christer/.rvm/gems/ruby-2.3.0@teamhubs4/gems/rack-1.6.4/lib/rack/multipart/parser.rb:56:in `loop'
    /Users/christer/.rvm/gems/ruby-2.3.0@teamhubs4/gems/rack-1.6.4/lib/rack/multipart/parser.rb:56:in `parse'
    /Users/christer/.rvm/gems/ruby-2.3.0@teamhubs4/gems/rack-1.6.4/lib/rack/multipart.rb:25:in `parse_multipart'
    /Users/christer/.rvm/gems/ruby-2.3.0@teamhubs4/gems/rack-1.6.4/lib/rack/request.rb:375:in `parse_multipart'
    /Users/christer/.rvm/gems/ruby-2.3.0@teamhubs4/gems/rack-1.6.4/lib/rack/request.rb:207:in `POST'

由于最大数量的打开多部分文件，谷歌搜索引发了Rails 4.2的多部分提交问题，但这肯定是不同的。

我使用Ruby 2.3运行Rails 4.2.6。

Answer 1

虽然我没有使用imgur gem，但Phil Ross让我走上正轨。我确实用to_hash方法扩展了Array类。删除这些扩展，瞧！，事情可以正常工作。

Answer 2

imgur并非孤军奋战。 known {{3}}也是{{3}}的原因。检查你的Gemfile。

提交多部分表单会导致Rails 4.2上的内部服务器错误

2 个答案: