synchronize documents generation

app/models/document_generation_event.rb

@@ -0,0 +1,31 @@
+# frozen_string_literal: true
+
+# == Schema Information
+#
+# Table name: document_generation_events
+#
+#  id           :bigint           not null, primary key
+#  event_name   :string           not null
+#  created_at   :datetime         not null
+#  updated_at   :datetime         not null
+#  submitter_id :bigint           not null
+#
+# Indexes
+#
+#  index_document_generation_events_on_submitter_id                 (submitter_id)
+#  index_document_generation_events_on_submitter_id_and_event_name  (submitter_id,event_name) UNIQUE WHERE ((event_name)::text = ANY ((ARRAY['start'::character varying, 'complete'::character varying])::text[]))
+#
+# Foreign Keys
+#
+#  fk_rails_...  (submitter_id => submitters.id)
+#
+class DocumentGenerationEvent < ApplicationRecord
+  belongs_to :submitter
+
+  enum :event_name, {
+    complete: 'complete',
+    fail: 'fail',
+    start: 'start',
+    retry: 'retry'
+  }, scope: false
+end

app/models/submitter.rb

@@ -39,6 +39,8 @@ class Submitter < ApplicationRecord
   has_many_attached :documents
   has_many_attached :attachments
 
+  has_many :document_generation_events, dependent: :destroy
+
   def status
     if completed_at?
       'completed'