keep required researcher_type. datacite/volpino#72

app/graphql/types/researcher_type.rb

@@ -0,0 +1,19 @@
+# frozen_string_literal: true
+
+class ResearcherType < BaseObject
+  description "Information about researchers"
+
+  field :id, ID, null: true, description: "ORCID ID"
+  field :name, String, null: true, description: "Researcher name"
+  field :name_type, String, null: true, hash_key: "nameType", description: "The type of name"
+  field :given_names, String, null: true, description: "User given names"
+  field :family_name, String, null: true, description: "Researcher family name"
+
+  def id
+    object.uid ? "https://orcid.org/#{object.uid}" : object.id
+  end
+
+  def name
+    object.name
+  end
+end