Rails 4 MongoID嵌入式文檔

Question

我有以下型號

class Professional
  include Mongoid::Document
  field :first_name, type: String
  field :last_name, type: String
  field :company_name, type: String
  field :address, type: String


  validates :first_name, length: { minimum: 5, :message => "What" }, format: { with: /\A[a-zA-Z]+\z/, message: "only allows letters" }
end

我想要包含一個嵌入式文檔，我可以存儲多個辦公地址。 我正在尋找以下DB的結構

{
  "first_name": "Harsha",
  "last_name": "MV",
  "company_name": "Mink7",
  "offices": [
    {
      "name": "Head Office",
      "address": "some address here"
    },
    {
      "name": "Off Site Office",
      "address": "some large address here"
    }
  ]
}

Answer 1

您必須定義模型嵌入辦公室對象，反之亦然，解釋如下： http ： //mongoid.org/en/mongoid/docs/relations.html 。 我猜你需要一個1-N關系，以便專業人士可以嵌入幾個辦公室？ 在這種情況下，這樣的事情應該有效。

專業模特

class Professional
  include Mongoid::Document
  field :first_name, type: String
  field :last_name, type: String
  field :company_name, type: String
  field :address, type: String


  validates :first_name, length: { minimum: 5, :message => "What" }, format: { with: /\A[a-zA-Z]+\z/, message: "only allows letters" }

  embeds_many :offices, class_name: "Office"
end

辦公室模型

class Office
  include Mongoid::Document
  field :name, type: String
  field :address, type: String

  embedded_in :professional, :inverse_of => :offices
end

請記住，如果您打算為這些對象使用一個表單，則必須執行嵌套表單，例如（或只是谷歌一些）：

<%= form_for @professional, :url => { :action => "create" } do |o| %>
    <%= o.text_field :first_name %>
    <%= o.text_field :last_name %>

    <%= o.fields_for :office do |builder| %>
        <%= builder.text_field :name %>
        <%= builder.text_field :address %>
    <% end %>
<% end %>

請注意，沒有測試。