軌道4 MongoID嵌入文檔

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 

我想包括一個嵌入文檔在那裏我可以存儲多個辦公地址。在尋找的DB

{ 
    "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

以下結構你必須定義該模型中嵌入Office對象，反之亦然，說明這裏：http://mongoid.org/en/mongoid/docs/relations.html。我猜你需要1-N關係，這樣專業人員才能嵌入多個辦公室？在這種情況下，應該這樣做。

專業模型

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，如果你要使用一種形式爲這些對象，你就必須做一個嵌套形式，類似的信息（或只是谷歌的東西了）：

<%= form_for @professional, :url => { :action => "create" } do |p| %> 
    <%= 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 %> 

注意：並沒有進行測試。