rails simple_nested_form_forfields_for错误的参数数量 [英] rails simple_nested_form_for fields_for wrong number of arguments

问题描述

所以我要使用

<%= simple_nested_form_for(@person, :url => collection_url, :html=>{:multipart => true}) do |f| %>
  <%= render :partial => "form", :locals => { :f => f } %>
<% end %>

但是部分行中的这一行引起了问题:

but this line in the partial is causing the problem:

<h2>Badges</h2> 
<ul id="certifications">
// this following line is raising the error "wrong number of arguments (4 for 3)"
<%= f.fields_for :certifications do |certification_form| %> 
    <%= render :partial => 'certification', :locals => { :f => certification_form } %>
<% end %>
</ul>
<%= f.link_to_add "Add a Badge", :certifications %>

因此，这里是模型:

class Person < ActiveRecord::Base
  has_many :certifications, :dependent=>:destroy, :order=>:position
  has_many :certificates, :through=>:certifications
  accepts_nested_attributes_for :certifications, :allow_destroy => true
end

控制器正在使用继承的资源gem.

The controller is using the inherited resource gem.

怎么了?谢谢您的帮助.

What's wrong? Thanks for the help.

推荐答案

我遇到了同样的问题，直到我意识到gem与git上的版本已经过时了.我只是用git上的文件手动更新了gem文件，并解决了问题！

I was having the same problem until I realized the gem is out of date with the version on git. I just manually updated the gem files with the ones on git and problem fixed!

这篇关于rails simple_nested_form_forfields_for错误的参数数量的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！