show both, files and file infos in acq.media API response

app/controllers/api/releases_controller.rb

@@ -45,13 +45,14 @@ class Api::ReleasesController < Api::ApiController
     if model_name == "acquired_media_release"
       mapping = {
         "#{model_name.camelize}": SerializableAcquiredMediaRelease,
+        FileInfo: SerializableFileInfo,
         "ActiveStorage::Attachment".to_sym => ActiveStorage::SerializableAttachment,
       }
 
       render jsonapi: release,
            status: status,
            class: mapping,
-           include: [:files]
+           include: [:files, :file_infos]
     else
       mapping = {
         "#{model_name.camelize}": show_serializable,

app/serializers/serializable_acquired_media_release.rb

@@ -7,7 +7,17 @@ class SerializableAcquiredMediaRelease < JSONAPI::Serializable::Resource
               :person_title, :person_company, :created_at, :updated_at, :collection_uid, :territory_old, :term_old,
               :applicable_medium_id, :applicable_medium_text, :territory_id, :territory_text, :term_id, :term_text,
               :restriction_id, :restriction_text, :categories, :description, :tag_list
-  
+
+  has_many :file_infos do
+    data do
+      @object.file_infos
+    end
+
+    meta do
+      { count: @object.file_infos.size }
+    end
+  end
+
   has_many :files do
     data do
       @object.files