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active model serializer has_many association not working


active model serializer has_many association not working

By : kayla
Date : November 20 2020, 03:01 PM
should help you out I'm assuming you're using the json_api adapter. As per the sample for the JSON API specification in http://jsonapi.org/examples/, any other attribute other than the "type" and "id" of the associated model can be exposed through the "included" property. You may checkout the discussion in https://github.com/rails-api/active_model_serializers/issues/1056
code :


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Rails Active Model Serializer - has_many and accessing the parent record

Rails Active Model Serializer - has_many and accessing the parent record


By : user2175944
Date : March 29 2020, 07:55 AM
help you fix your problem I'm trying to build a JSON representation of some Rails models using Active Model Serializer, where some models embed others. For example, I have Event and Attendees, Event has_and_belongs_to_many Attendees. , I'd do things manually to get control:
code :
class EventSerializer < ActiveModel::Serializer
  attributes :name, :attendees

  def attendees
    object.attendees.map do |attendee|
      AttendeeSerializer.new(attendee, scope: scope, root: false, event: object)
    end
  end
end

class AttendeeSerializer < ActiveModel::Serializer
  attributes :name, :comments

  def comments
    object.comments.where(event_id: @options[:event].id).map do |comment|
      CommentSerializer.new(comment, scope: scope, root: false)
    end
  end
end
Using a different key name for an association attribute in rails api active model serializer

Using a different key name for an association attribute in rails api active model serializer


By : user2953540
Date : November 21 2020, 01:01 AM
help you fix your problem You can define stays as one of the attributes you want to have in your json.
Naturally, the serializer will go to the model instance and not find an attribute in the model with that name. So, it will be sitting there scratching its head as to what in the world the value of :stays should be.
code :
class EmployeeSerializer < ActiveModel::Serializer
  attributes :id, :name, :stays

  def stays
    MyAddressSerializer.new(object.address, root: false)
  end

end
Include an association with Active Model Serializer

Include an association with Active Model Serializer


By : Tomas Bonaqua
Date : March 29 2020, 07:55 AM
hope this fix your issue In a Rails 5 application, I'm using Active Model Serializer 0.10.0.rc4. I want to include a relation in a json hash. , You can create a subscriptions method like this:
code :
attributes :subscriptions

def subscriptions
  object.subscriptions.as_json(only: [:id, :name])
end
Active model serializer, render association without key

Active model serializer, render association without key


By : Onkar Tripathi
Date : March 29 2020, 07:55 AM
I think the issue was by ths following , I have a table named featured_products witch contains only two columns (product_id, position). On my GET /featured_products, I want to render something like this , You can also try this:
code :
render json: FeaturedProduct.includes(:product).order(:position).map(&:product) # include :product to avoid N + 1 queries on products
Force Active Model Serializer to return association

Force Active Model Serializer to return association


By : user7910516
Date : March 29 2020, 07:55 AM
I think the issue was by ths following , Remove special from attributes and then try has_one or belongs_to, described in this Guide, like this:
code :
class API::DashboardSerializer < ActiveModel::Serializer
  attributes :id, :name

  has_one :special, serializer: CheckInSerializer

  def special
    # ...
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