Rails/javascript:"参数键太多”-什么'这是规范表单数据的好方法
Rails / javascript: "too many parameter keys" - what's a good way to normalize form data?
我使用的是轨道3.1.3。我有一张有很多字段的表格。当表格提交时,我收到这个错误
ERROR RangeError: exceeded available parameter key space
/home/james/.rvm/gems/ruby-1.9.3-p0/gems/rack-1.3.6/lib/rack/utils.rb:99:in `block in parse_nested_query'
/home/james/.rvm/gems/ruby-1.9.3-p0/gems/rack-1.3.6/lib/rack/utils.rb:93:in `each'
/home/james/.rvm/gems/ruby-1.9.3-p0/gems/rack-1.3.6/lib/rack/utils.rb:93:in `parse_nested_query'
/home/james/.rvm/gems/ruby-1.9.3-p0/gems/rack-1.3.6/lib/rack/request.rb:302:in `parse_query'
/home/james/.rvm/gems/ruby-1.9.3-p0/gems/rack-1.3.6/lib/rack/request.rb:190:in `POST'
/home/james/.rvm/gems/ruby-1.9.3-p0/gems/rack-1.3.6/lib/rack/methodoverride.rb:15:in `call'
/home/james/.rvm/gems/ruby-1.9.3-p0/gems/rack-1.3.6/lib/rack/runtime.rb:17:in `call'
/home/james/.rvm/gems/ruby-1.9.3-p0/gems/activesupport-3.1.3/lib/active_support/cache/strategy/local_cache.rb:72:in `call'
/home/james/.rvm/gems/ruby-1.9.3-p0/gems/rack-1.3.6/lib/rack/lock.rb:15:in `call'
/home/james/.rvm/gems/ruby-1.9.3-p0/gems/actionpack-3.1.3/lib/action_dispatch/middleware/static.rb:53:in `call'
/home/james/.rvm/gems/ruby-1.9.3-p0/gems/railties-3.1.3/lib/rails/engine.rb:456:in `call'
/home/james/.rvm/gems/ruby-1.9.3-p0/gems/rack-1.3.6/lib/rack/content_length.rb:14:in `call'
/home/james/.rvm/gems/ruby-1.9.3-p0/gems/railties-3.1.3/lib/rails/rack/debugger.rb:21:in `call'
/home/james/.rvm/gems/ruby-1.9.3-p0/gems/railties-3.1.3/lib/rails/rack/log_tailer.rb:14:in `call'
/home/james/.rvm/gems/ruby-1.9.3-p0/gems/rack-1.3.6/lib/rack/handler/webrick.rb:59:in `service'
/home/james/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/1.9.1/webrick/httpserver.rb:138:in `service'
/home/james/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/1.9.1/webrick/httpserver.rb:94:in `run'
/home/james/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/1.9.1/webrick/server.rb:191:in `block in start_thread'
所以很明显,提交的k/v对太多了。解决这个问题的好方法是什么?我想我会用javascript拦截表单的提交,然后以某种方式对其进行编码,使其只有一个k/v对,然后在应用服务器上将其解码为普通的params哈希。如能为这种方法或更好的方法提供任何指导,我们将不胜感激。
Rack在几个版本前就引入了此问题。请参阅这些(1,2)报告。我通过将以下代码添加到初始值设定项文件来解决这个问题。
if Rack::Utils.respond_to?("key_space_limit=")
Rack::Utils.key_space_limit = 262144
end
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