MongoID，将一个文档嵌入到多个文档中

Question

我有一个如下所示的模型地址

class Address
  include Mongoid::Document

  field :line1
  field :city
  # more fields like this

  embedded_in :user, :inverse_of => :permanent_address
  embedded_in :user, :inverse_of => :current_address
  embedded_in :college, :inverse_of => :address
end

有嵌入地址的模型大学和用户

class College
  include Mongoid::Document

  references_many :users
  embeds_one :address

  # some fields and more code
end


class User
  include Mongoid::Document

  referenced_in :college, :inverse_of => :users  

  embeds_one :permanent_address, :class_name => "Address"
  embeds_one :current_address, :class_name => "Address"

  # fields and more code
end

我在上述设置中遇到了一些问题。我使用单一表单来询问当前和永久地址以及更多信息，但只有 current_address 被保存，并且也保存了我在 permanent_address 中填充的数据。

Parameters: 
  {"utf8"=>"✓",
   "authenticity_token"=>"KdOLvzmKyX341SSTc1SoUG6QIP9NplbAwkQkcx8cgdk=", 
   "user"=> {
     "personal_info_attributes"=>{...},
     "nick_names_attributes"=>{...}, 
     "current_address_attributes"=>{
        "line1"=>"", 
        "area"=>"", 
        "country"=>"USA", 
        "postal_code"=>"sd", 
        "city"=>"", 
        "state"=>"", 
        "landmark"=>"", 
        "id"=>"4d891397932ecf36a4000064"
     }, 
     "permanent_address_attributes"=>{
       "line1"=>"", 
       "area"=>"asd", 
       "country"=>"india", 
       "postal_code"=>"", 
       "city"=>"", 
       "state"=>"", 
       "landmark"=>""
     }, 
     "commit"=>"Submit", "id"=>"4d8903d6932ecf32cf000001"}
MONGODB alma_connect['users'].find({:_id=>BSON::ObjectId('4d8903d6932ecf32cf000001')})
MONGODB alma_connect['users'].update({"_id"=>BSON::ObjectId('4d8903d6932ecf32cf000001')}, 
  {"$set"=>{
    "current_address"=>{
      "line1"=>"", 
      "area"=>"asd", 
      "country"=>"india", 
      "postal_code"=>"", 
      "city"=>"", 
      "state"=>"", 
      "landmark"=>"", 
      "_id"=>BSON::ObjectId('4d8916e9932ecf381f000005')}}})

我不确定这是我在这里做错的事情还是还有其他问题。我正在使用 Rails 3.0.4 和 MongoID 2.0.0.rc.7

更新：

我升级到 mongoid 2.0.1 并更改了我的用户以在地址中包含相反的选项。

class User
  include Mongoid::Document

  referenced_in :college, :inverse_of => :users  

  embeds_one :permanent_address, :class_name => "Address", :inverse_of => :permanent_address
  embeds_one :current_address, :class_name => "Address", :inverse_of => :current_address

  # fields and more code
end

我知道名称的逆没有意义，但这里的要点只是让它们不同，或者如果您在嵌入类中的关系有好的名称（例如：current_user，：permanent_user），则应该将其用于逆的。

Answer 1

我觉得不错。我有类似的设置并且它按预期工作。