0

我在某些模型中有一些嵌套属性，例如：

class Employee < ActiveRecord::Base
  has_one :user, :as => :user_role, :dependent => :destroy
  accepts_nested_attributes_for :user, :allow_destroy => true
end

class User < ActiveRecord::Base
  has_one :person, :as => :person_role, :dependent => :destroy
  belongs_to :user_role, :polymorphic => true
  accepts_nested_attributes_for :person, :allow_destroy => true
end

class Person < ActiveRecord::Base
  has_many :address_person_links, :dependent => :destroy
  has_many :addresses, :through => :address_person_links, :uniq => true, :dependent => :destroy

  belongs_to :person_role, :polymorphic => true

  accepts_nested_attributes_for :addresses, :allow_destroy => true
end

class AddressPersonLink < ActiveRecord::Base
  belongs_to :address
  belongs_to :person
end

class Address < ActiveRecord::Base
  has_many :address_person_links, :dependent => :destroy
  has_many :people, :through => :address_person_links, :uniq => true
end

当我@employee.update_attributes(params[:employee])从控制器调用时，它会更新除地址之外的所有内容。但是，如果我raise params.inspect将其复制到脚本/控制台中的变量中，它确实可以工作。例子：

>> e = Employee.find(8)
=> #<Employee id: 8, active: true, admin: false, created_at: "2010-10-06 20:05:01", updated_at: "2010-10-06 20:11:20">
>>address = a.user.person.addresses[0]
=> #<Address id: 10, address1: "225 3rd Ave", address2: "", address3: "", city: "Sacramento", state_id: 5, zip_code: "95814", country_id: 1, contact_type_id: 2, created_at: "2010-10-06 20:05:01", updated_at: "2010-10-06 22:40:06">
>> params = {"commit"=>"Update",
?>  "_method"=>"put",
?>  "authenticity_token"=>"sYgfNDbt4SB00WSjJXnpF4FNhRT4HBHcY7W+IENpC/k=",
?>  "id"=>"8",
?>  "employee"=>{"user_attributes"=>{"person_attributes"=>{"addresses_attributes"=>{"0"=>{"address1"=>"225 3rd Ave Suite 777",
?>  "city"=>"Sacramento",
?>  "contact_type_id"=>"2",
?>  "address2"=>"",
?>  "address3"=>"",
?>  "zip_code"=>"95814",
?>  "country_id"=>"1",
?>  "id"=>"10",
?>  "state_id"=>"5"}},
?>  "prefix"=>"",
?>  "email_addresses_attributes"=>{"0"=>{"contact_type_id"=>"2",
?>  "id"=>"16",
?>  "email"=>"first@example.com"}},
?>  "id"=>"16",
?>  "last_name"=>"Last",
?>  "suffix"=>"",
?>  "phone_numbers_attributes"=>{"0"=>{"number"=>"9165555555",
?>  "contact_type_id"=>"1",
?>  "extension"=>"",
?>  "id"=>"16"}},
?>  "first_name"=>"First"},
?>  "password_confirmation"=>"321321",
?>  "id"=>"16",
?>  "password"=>"321321",
?>  "login"=>"third"},
?>  "admin"=>"0",
?>  "active"=>"1"}}
=> # this outputs the hash that was created
>> e.update_attributes(params["employee"]) # they are no longer symbols but string keys now
=> true
>> address
=> #<Address id: 10, address1: "225 3rd Ave Suite 777", address2: "", address3: "", city: "Sacramento", state_id: 5, zip_code: "95814", country_id: 1, contact_type_id: 2, created_at: "2010-10-06 20:05:01", updated_at: "2010-10-06 22:40:16">

所以你可以看到地址是从脚本/控制台更新的，但不是从我的控制器更新的。

如果这是信息过载，那么这个问题的简单版本是：
为什么我的地址没有更新？

4

2 回答 2

0

我今天终于能够看到这个问题。这是我偶然发现的一个快速解决方案，因为我正在处理另一个问题：当我删除员工、用户或人员时，地址没有被删除。修复是这样的：

class AddressPersonLink < ActiveRecord::Base
  # some how adding dependent => destroy fixed the problem
  # i was having with updating as well.
  belongs_to :address, :dependent => :destroy
  belongs_to :person
end
于 2010-10-20T00:39:41.763 回答
0

出于不同的原因，我有这种沉默的奇怪行为。在我的模型中，我有

accepts_nested_attributes_for :items, :allow_destroy => true, :reject_if => proc { |attrs| attrs['count'] == '0' || ( attrs['article_id'] == '' && attrs['quantity_id'] == '') }

我删除了 :reject_if 部分，它再次起作用。

于 2011-02-20T23:09:46.763 回答