uninitialized constant Resolvers::MyResolver::MyModel - model not loaded in some cases? about graphiql-rails HOT 4 CLOSED

Started POST "/graphql" for 127.0.0.1 at 2019-02-27 13:48:01 -0700
Processing by GraphqlsController#create as */*
  Parameters: {"query"=>"query {\n  questions {\n    uuid\n  }\n}\n", "variables"=>nil, "graphql"=>{"query"=>"query {\n  questions {\n    uuid\n  }\n}\n", "variables"=>nil}}
  AuthToken Load (1.4ms)  SELECT  "auth_tokens".* FROM "auth_tokens" WHERE "auth_tokens"."expired_at" IS NULL AND "auth_tokens"."token" = $1 LIMIT $2  [["token", "**********"], ["LIMIT", 1]]
  ↳ app/controllers/application_controller.rb:35
  User Load (0.5ms)  SELECT  "users".* FROM "users" WHERE "users"."id" = $1 ORDER BY "users"."id" ASC LIMIT $2  [["id", 4], ["LIMIT", 1]]
  ↳ app/controllers/application_controller.rb:42
   (0.1ms)  BEGIN
  ↳ app/controllers/application_controller.rb:42
  AuthToken Update (0.3ms)  UPDATE "auth_tokens" SET "last_used_at" = $1, "updated_at" = $2 WHERE "auth_tokens"."id" = $3  [["last_used_at", "2019-02-27 20:48:01.568622"], ["updated_at", "2019-02-27 20:48:01.571236"], ["id", 1]]
  ↳ app/controllers/application_controller.rb:42
   (0.3ms)  COMMIT
  ↳ app/controllers/application_controller.rb:42
Completed 500 Internal Server Error in 24ms (ActiveRecord: 6.2ms)



NameError (uninitialized constant Resolvers::Questions::Question):

app/graphql/resolvers/questions.rb:16:in `resolve'
app/controllers/graphqls_controller.rb:31:in `create'

class Question < ApplicationRecord
  include Trackable
  include Identifiable

  belongs_to :organization
  has_many   :question_versions

  accepts_nested_attributes_for :question_versions

  validates :name, presence: true

  enum field_type: [
    :short_text,
    :paragraph_text,
    :number,
    :date,
    :time,
    :single_select,
    :multi_select,
    :likert,
    :photo,
    :audio,
    :video,
  ]

  def latest_version
    question_versions.order(:version_number).last
  end
end