不允许的参数，尽管包含在强参数中

>我遇到错误的情况

Unpermitted parameter: incorporation

但是我将其列在强参数中：

def company_params
        params.require(:company).permit(:id, :name, :employee_stock_options, :options_pool, :state_corp, :street, :city, :state, :zip, :_destroy,
                            incorporation_attributes: [:title, :trademark_search, :user_id, :employee_stock_options, :final_submit, :submit, :_destroy],
                            names_attributes: [:id, :name_string, :suffix, :approved, :snapshot, :company_id, :_destroy],

有一个

问题可能会导致这个问题：有问题的控制器实际上是Incorporation控制器。但是，正如您可能注意到的那样，我们正在使用它来创建父模型Company，它has_one :incorporation 。我意识到这有点奇怪，但我有理由希望我的模型以这种方式构建并使用incorporations_controller来做到这一点。

因此，我的表格结构如下：

<%= simple_form_for @company, url: url_for(action: @caction, controller: 'incorporations'), html: {id:"incorporationform"}, remote: false, update: { success: "response", failure: "error"} do |company| %>
  <%= company.simple_fields_for @incorporation do |f| %>
    <div class="padded-fields">
        <div class="form_subsection">
            <%= f.input :trademark_search, as: :radio_buttons, label: 'Would you like us to do a trademark search and provide advice regarding any issues we identify in relation to the name you have selected?', input_html: { class: 'form-control radio radio-false' } %>
        </div>
    </div>
  <% end %>
  ....
<% end %>

提前感谢您的任何见解

更新：我的new和create方法如下incorporations_controller

    def new
        @user=current_user
        @company = @user.companies.build
        @incorporation = @company.build_incorporation
        @action = "new"
        @caction = "create"
    end
    def create
        @snapshot="incorporation"
        @company = current_user.companies.build(company_params)
        @incorporation = @company.build_incorporation
        if @company.save
            current_user.companies << @company
            if params[:final_submit]
                redirect_to incorporations_index_path
            else
                redirect_to edit_incorporation_path(@incorporation), notice: "Successfuly saved incorporation info."
            end
        else
            render 'new', notice: "Something went wrong; form unable to be saved."
#       render :nothing => true
        end
    end

更新2：如果有帮助，以下是日志中的参数：

"company"=>{"names_attributes"=>{"1452853672570"=>{"name_string"=>"test19", "suffix"=>"INC", "_destroy"=>"false"}}, "fiscal_year_end_month"=>"", "fiscal_year_end_day"=>"", "street"=>"", "city"=>"", "state"=>"", "zip"=>"", "issued_common_stock"=>"10,000,000", "employee_stock_options"=>"false", "options_pool"=>"0", "incorporation"=>{"submit"=>"0"}}, "commit"=>"Save"}

我注意到（与其他嵌套属性不同）合并后面没有_attributes行。这是否具有某种意义？

更新3：我似乎还在公司合并表中创建了一个公司条目，并分配了适当的所有权。但是，没有填写其他字段。

无论如何，

您不应该在提交的参数中incorporation - 它应该是incorporation_attributes的（因为您已经在强参数中得到了）。

如果您使用的是 fields_for ，您应该期望[association]_attributes作为参数从表单传递。

没有它意味着您的父模型中没有accepts_nested_attributes_for，或者您没有构建您的子对象：

#app/models/company.rb
class Company < ActiveRecord::Base
   has_one :incorporation
   accepts_nested_attributes_for :incorporation
end

#app/controllers/incorporations_controller.rb
class IncorporationsController < ApplicationController
   def new
       @company = Company.new
       @company.build_incorporation #-> only needed if a new record
   end
   def create
       @company = Company.new company_params
       @company.save
   end
end

更新

你有一个多么奇怪的问题 - 你通过names_attributes很好，但incorporation不起作用。

看

了你的params后，我想说的一件事是，你的incorporation只是路过"submit" => "0"。我不明白那是什么;无论如何，您的表单存在许多问题：

def new
    @company = current_user.companies.new
    @company.build_incorporation
    ...
end
def create
    @company = current_user.companies.new company_params
    @company.save #-> don't need to "build" in create
end

这将允许您...

<%= simple_form_for @company, url: url_for(action: @caction, controller: 'incorporations'), html: {id:"incorporationform"}, remote: false, update: { success: "response", failure: "error"} do |company| %>
  <%= company.simple_fields_for :incorporation do |f| %>
     <%= f.input ...
  <% end %>

使用 fields_for 时，您只需要传递父对象（在您的情况下为 @company ）。生成incorporation将自动填充fields_for，而无需显式声明它。

该错误表明我们需要company模型中定义它：

accepts_nested_attributes_for :incorporation
attr_accessible :incorporation_attributes

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