Mongoid 中除了 embeds_one 对象之外的 JSON 序列化？

发布于 2024-10-24 11:36:34 字数 463 浏览 2 评论 0原文

给定这个嵌入了一个位置对象的 mongoid“报告”文档对象：

{
  comment: "",
  location: {
    address: "391 Little Bourke St, Melbourne VIC 3000, Australia",
    geocode: {
      ll: "-37.813787,144.961227",
    }
  },
  _id: "4d84af7f52f3d40539000021",
}

如何排除位置哈希的地理编码部分？

例如，通过在报告模型中执行以下操作，可以轻松排除注释字段：

def to_json(options={})
  options[:except] ||= :comment
  super(options)
end

除了“地理编码”（位置的一部分）之外，代码是什么样的？

原文

Given this mongoid "Report" Document object that embeds_one location object:

{
  comment: "",
  location: {
    address: "391 Little Bourke St, Melbourne VIC 3000, Australia",
    geocode: {
      ll: "-37.813787,144.961227",
    }
  },
  _id: "4d84af7f52f3d40539000021",
}

How do I except the geocode part of the location hash?

As an example, it's easy to except the comment field by doing this in the Report model:

def to_json(options={})
  options[:except] ||= :comment
  super(options)
end

What's the code look like to except "geocode", which is part of location?

分享到QQ

分享到微博

如果你对这篇内容有疑问，欢迎到本站社区发帖提问参与讨论，获取更多帮助，或者扫码二维码加入 Web 技术交流群。

发布评论

需要登录才能够评论，你可以免费注册一个本站的账号。

一抹淡然 2024-10-31 11:36:34

对我有用：


require 'rubygems'
require 'mongoid'

Mongoid::Config.settings = {
  "host" => "127.0.0.1",
  "database" => "testing"
}

class Report
  include Mongoid::Document
  embeds_one :location

  field :comment
end

class Location
  include Mongoid::Document
  field :address
  field :geocode, :type => Hash

  embedded_in :report
end

report = Report.new(:comment=>'comment', :location => {:address=>'elm street', :geocode => {:ll=>'-31'}})
puts report.to_json(:include=>:location, :except => :geocode)

产量：
{"_id":"4dab2655b4e4cf2fa6000001","comment":"comment","location":{"_id":"4dab2655b4e4cf2fa6000002","address":"elm street"}}

如果您想要位置，请始终忽略地理编码，那么你应该在Location类中重新定义serialized_hash：


  def serializable_hash(options = nil)
    options ||= {}
    options[:except] = :geocode
    super(options).tap do |attrs|
      serialize_relations(attrs, options) if options[:include]
    end
  end

Works for me:


require 'rubygems'
require 'mongoid'

Mongoid::Config.settings = {
  "host" => "127.0.0.1",
  "database" => "testing"
}

class Report
  include Mongoid::Document
  embeds_one :location

  field :comment
end

class Location
  include Mongoid::Document
  field :address
  field :geocode, :type => Hash

  embedded_in :report
end

report = Report.new(:comment=>'comment', :location => {:address=>'elm street', :geocode => {:ll=>'-31'}})
puts report.to_json(:include=>:location, :except => :geocode)

yields:
{"_id":"4dab2655b4e4cf2fa6000001","comment":"comment","location":{"_id":"4dab2655b4e4cf2fa6000002","address":"elm street"}}

and if you want the Location always omit the geocode, then you should re-define the serializable_hash inside Location class:


  def serializable_hash(options = nil)
    options ||= {}
    options[:except] = :geocode
    super(options).tap do |attrs|
      serialize_relations(attrs, options) if options[:include]
    end
  end

回复收藏 0 原文

~没有更多了~