How can I deal with nested data as object not as attributes?

[ghost]

I got the response via her request as following:
The response is nested.

I want to use contents data as a object.
But execute the program, I got a error as follow:

undefined method `logo' for #<ActiveSupport::HashWithIndifferentAccess:0x007f8bfd7a63a0>

How can I deal with as object about contents data?
If I deal with as hash, Has no problem.

json.set! :content do
  json.array! part.content do |data|
    json.logo           data[:logo]
    json.bg_img         data[:bg_img]
  end
end

response via her

{
  "page": {
    "title": "Rock Fun",
    "parts": [
        {
          "kind": "header",
          "contents": {
            "logo": "https://example/assets/logo.png",
            "bg_img": "https://example/assets/bg.png"
          }
        },
        {
          "kind": "header",
          "contents": [{
            "logo": "https://example/assets/logo.png",
            "bg_img": "https://example/assets/bg.png"
          },
          {
            "logo": "https://example/assets/logo.png",
            "bg_img": "https://example/assets/bg.png"
          }]
        }
    ]
  }
}

connection.rb

CUSTOM_PARSER = Her::API.setup url: "https://example.com" do |conn|
  conn.use CustomParser
  conn.use Faraday::Adapter::NetHttp
end

parser.rb

class CustomParser < Response::Middleware
  def on_complete(env)
    json = MultiJson.load(env[:body], symbolize_keys: true)
    item = json.is_a?(Array) ? json[:page] : [json[:page]]
    env[:body] = {
                    data: item,
                    metadata: {
                      status: env[:status]
                    }
                  }
  end
end

model.rb

class SiteData
  include Her::Model
  uses_api CustomParser
  collection_path "/pages/mysite"

  has_many :parts

  class << self
    def find_site_data(path)
      SiteData.where(path: path).all
    end
  end
end

class Part
  include Her::Model
  has_many :contents

  belongs_to :siteData
end

class Content
  include Her::Model
  belongs_to :part
end

site_data.jbuilder

json.result do |json|
  json.array! @result do |obj|
    json.title        obj.title

    json.set! :parts do
      json.array! obj.parts do |part|
        json.kind               part.kind

        json.set! :content do
          json.array! part.content do |data|
            json.logo           data.logo
            json.bg_img         data.bg_img
          end
        end
      end
    end
  end
end

[edtjones]

Hi, The only thing which I can think of here is that each part in the response should have an id. I can't see an id field in the child objects. Ed

…

-- Sent from my phone: please forgive the brevity. Ed Jones

On 20 Feb 2017, at 05:37, yongwoon-kim ***@***.***> wrote: I got the response via her request as following: The response is nested. I want to use contents data as a object. But execute the program, I got a error as follow: undefined method `logo' for #<ActiveSupport::HashWithIndifferentAccess:0x007f8bfd7a63a0> How can I deal with as object about contents data? If I deal with hash, Has no problem. json.set! :content do json.array! part.content do |data| json.logo data[:logo] json.bg_img data[:bg_img] end end response { "page": { "title": "Rock Fun", "parts": [ { "kind": "header", "contents": { "logo": "https://example/assets/logo.png", "bg_img": "https://example/assets/bg.png" } }, { "kind": "header", "contents": [{ "logo": "https://example/assets/logo.png", "bg_img": "https://example/assets/bg.png" }, { "logo": "https://example/assets/logo.png", "bg_img": "https://example/assets/bg.png" }] } ] } } connection.rb CUSTOM_PARSER = Her::API.setup url: "https://example.com" do |conn| conn.use CustomParser conn.use Faraday::Adapter::NetHttp end parser.rb class CustomParser < Response::Middleware def on_complete(env) json = MultiJson.load(env[:body], symbolize_keys: true) item = json.is_a?(Array) ? json[:page] : [json[:page]] env[:body] = { data: item, metadata: { status: env[:status] } } end end model.rb class SiteData include Her::Model uses_api CustomParser collection_path "/pages/mysite" has_many :parts class << self def find_organization(path) SiteData.where(path: path).all end end end class Parts include Her::Model has_many :contents belongs_to :organization end class Content include Her::Model belongs_to :part end site_data.jbuilder json.result do |json| json.array! @Result do |obj| json.title obj.title json.set! :parts do json.array! obj.parts do |part| json.kind part.kind json.set! :content do json.array! part.content do |data| json.logo data.logo json.bg_img data.bg_img end end end end end end — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub, or mute the thread.

[ghost]

It means that parts, content model should have an id?

The raw response data via her, doesn't have an id for all models.
For handle data as object, should I insert an id in custom parser?
like

{
  "page": {
    "title": "Rock Fun",
    "parts": [
        {
          "id":0
          "kind": "header",
          "contents": {
            "id":0
            "logo": "https://example/assets/logo.png",
            "bg_img": "https://example/assets/bg.png"
          }
        },
        {
          "id":1
          "kind": "header",
          "contents": [{
            "id":0
            "logo": "https://example/assets/logo.png",
            "bg_img": "https://example/assets/bg.png"
          },
          {
            "id":1
            "logo": "https://example/assets/logo.png",
            "bg_img": "https://example/assets/bg.png"
          }]
        }
    ]
  }
}

---

I assume that API have one collection of resources. It is not be expected resource like

https://example.com/pages/mysite/:siteId

[edtjones]

Hi. You should not need a custom parser - if you include an id for each part in the json response the has_many method should make the child responses into objects.

…

-- Sent from my phone: please forgive the brevity. Ed Jones

On 20 Feb 2017, at 08:23, yongwoon-kim ***@***.***> wrote: It means that parts, content model should have an id? The raw response data via her, doesn't have an id. For handle data as object, should I insert an id in custom parser? — You are receiving this because you commented. Reply to this email directly, view it on GitHub, or mute the thread.

[ghost]

you mean that I have to modify api (https://example.com/pages/mysite) ?
I couldn't because not mine. also I cannot change request url and data.
So, have to solve it somehow in my project.

How I can solve the problem in my project ?
Is it impossible?