嵌套參數，與多態​​一對一

Question

我遇到了問題，我正在嘗試使用我的#new -action上的表單向平常添加地址。
我在做什麼目前，是

class Person < ActiveRecord::Base 
    has_one :address, :as => :owner 

    accepts_nested_attributes_for :address 
end 

class Address < ActiveRecord::Base 
    belongs_to :owner, :polymorphic => true 
end 

在我的形式，我使用form_for @person do |f| - 那麼的形式，然後f.fields_for :address do |af|和領域，使用af.text_field。

我的控制器動作：

def create 
    person = Person.new(person_params) 

    if person.valid? 
    person.save 
    redirect_to edit_content_person_path(@current_work_context, person) 
    else 
    @person = person 
    render 'new' 
    end 
end 

def person_params 
    params.require(:person).permit(:name, :address => [:line_one, :line_two, :zipcode, :city]) 
end 

當我提交我的形式，與這些參數：

{"utf8"=>"✓", 
"authenticity_token"=>"blablabla==", 
"person"=>{"name"=>"mr man", 
"address"=>{"line_one"=>"test address 15", 
"line_two"=>"", 
"zipcode"=>"2600", 
"city"=>"Glostrup"}}, 
"locale"=>"da", 
"context_id"=>"9"} 

然而，我得到異常：ActiveRecord::AssociationTypeMismatch

Address(#70198415678880) expected, got ActionController::Parameters(#70198414055220) 

我似乎無法找出原因。

編輯 - 我的看法，簡化：

<%= form_for @person do |f| %> 

    <%= f.text_field :name %> 

    <%= f.fields_for :address do |af| %> 
    <%= af.label :address %> 
    <%= af.text_field :line_one, :placeholder => "Address 1" %> 
    <%= af.text_field :line_two, :placeholder => "Address 2" %> 

    <%= af.label :zipcode %> 
    <%= af.text_field :zipcode, :class => "form-control" %> 

    <%= af.label :city %> 
    <%= af.text_field :city, :class => "form-control" %> 

    <% end %> 

<% end %> 

Answer 1

讓改掉一兩件事。請與該行並重新啓動服務器

# config/initializers/inflections.rb 

ActiveSupport::Inflector.inflections do |inflect|' 
    inflect.irregular 'address', 'addresses' 
end 

編輯

# after we discussing more about the problem in chat we found the solution. 
# The object 'Person' not initialize correctly to f.fields_for :address 

# view 

<% f.object.build_address if f.object.address.blank? %> #add this line 
<%= f.fields_for :address do |af| %>