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Question

我遇到了问题，我正在尝试使用#new - 行动中的表单，像往常一样向个人添加地址。
我目前正在做的是

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

在我的表单中，我使用form_for @person do |f| - 然后使用f.fields_for :address do |af|表单，然后是af.text_field和字段。

我的控制器操作：

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

当我提交表单时，请使用以下参数：

{"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，我得到例外：ActiveRecord::AssociationTypeMismatch

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

我似乎无法弄明白为什么。

编辑 - 我的观点，简化：

<%= 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

让我尝试一件事。请按此行并重新启动服务器

# config/initializers/inflections.rb

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

修改

# 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| %>

嵌套参数，具有多态一对一

1 个答案:

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