refactor(operation_log): store data in jsonb instead of files

app/models/dossier.rb

@@ -765,8 +765,8 @@ class Dossier < ApplicationRecord
   def expired_keep_track_and_destroy!
     transaction do
       DeletedDossier.create_from_dossier(self, :expired)
-      dossier_operation_logs.destroy_all
       log_automatic_dossier_operation(:supprimer, self)
+      dossier_operation_logs.purge_discarded
       destroy!
     end
     true
@@ -1164,7 +1164,7 @@ class Dossier < ApplicationRecord
   def purge_discarded
     transaction do
       DeletedDossier.create_from_dossier(self, hidden_by_reason)
-      dossier_operation_logs.not_deletion.destroy_all
+      dossier_operation_logs.purge_discarded
       destroy
     end
   end

app/models/dossier_operation_log.rb

@@ -37,10 +37,29 @@ class DossierOperationLog < ApplicationRecord
   belongs_to :bill_signature, optional: true
 
   scope :not_deletion, -> { where.not(operation: operations.fetch(:supprimer)) }
+  scope :with_data, -> { where.not(data: nil) }
   scope :brouillon_expired, -> { where(dossier: Dossier.brouillon_expired).not_deletion }
   scope :en_construction_expired, -> { where(dossier: Dossier.en_construction_expired).not_deletion }
   scope :termine_expired, -> { where(dossier: Dossier.termine_expired).not_deletion }
 
+  def move_to_cold_storage!
+    if data.present?
+      serialized.attach(
+        io: StringIO.new(data.to_json),
+        filename: "operation-#{digest}.json",
+        content_type: 'application/json',
+        # we don't want to run virus scanner on this file
+        metadata: { virus_scan_result: ActiveStorage::VirusScanner::SAFE }
+      )
+      update!(data: nil)
+    end
+  end
+
+  def self.purge_discarded
+    not_deletion.destroy_all
+    with_data.each(&:move_to_cold_storage!)
+  end
+
   def self.create_and_serialize(params)
     dossier = params.fetch(:dossier)
 
@@ -59,24 +78,17 @@ class DossierOperationLog < ApplicationRecord
       executed_at: Time.zone.now,
       automatic_operation: !!params[:automatic_operation])
 
-    serialized = {
+    data = {
       operation: operation_log.operation,
       dossier_id: operation_log.dossier_id,
       author: self.serialize_author(params[:author]),
       subject: self.serialize_subject(params[:subject], operation_log.operation),
       automatic_operation: operation_log.automatic_operation?,
       executed_at: operation_log.executed_at.iso8601
-    }.compact.to_json
+    }.compact
 
-    operation_log.digest = Digest::SHA256.hexdigest(serialized)
-
-    operation_log.serialized.attach(
-      io: StringIO.new(serialized),
-      filename: "operation-#{operation_log.digest}.json",
-      content_type: 'application/json',
-      # we don't want to run virus scanner on this file
-      metadata: { virus_scan_result: ActiveStorage::VirusScanner::SAFE }
-    )
+    operation_log.data = data
+    operation_log.digest = Digest::SHA256.hexdigest(data.to_json)
 
     operation_log.save!
   end

app/services/pieces_justificatives_service.rb

@@ -201,14 +201,21 @@ class PiecesJustificativesService
 
   def self.operation_logs_and_signature_ids(dossiers)
     dol_id_dossier_id_bill_id = DossierOperationLog
+      .where(dossier: dossiers, data: nil)
+      .pluck(:bill_signature_id, :id, :dossier_id)
+    dol_id_data_bill_id = DossierOperationLog
       .where(dossier: dossiers)
-      .pluck(:id, :dossier_id, :bill_signature_id)
+      .with_data
+      .pluck(:bill_signature_id, :id, :dossier_id, :data, :digest, :created_at)
 
     dol_id_dossier_id = dol_id_dossier_id_bill_id
-      .map { |dol_id, dossier_id, _| [dol_id, dossier_id] }
+      .map { |_, dol_id, dossier_id| [dol_id, dossier_id] }
       .to_h
 
-    bill_ids = dol_id_dossier_id_bill_id.map(&:third).uniq.compact
+    bill_ids = (dol_id_dossier_id_bill_id + dol_id_data_bill_id)
+      .map(&:first)
+      .uniq
+      .compact
 
     serialized_dols = ActiveStorage::Attachment
       .includes(:blob)
@@ -217,6 +224,17 @@ class PiecesJustificativesService
         dossier_id = dol_id_dossier_id[a.record_id]
         ActiveStorage::DownloadableFile.pj_and_path(dossier_id, a)
       end
+    serialized_dols += dol_id_data_bill_id.map do |_, id, dossier_id, data, digest, created_at|
+      a = ActiveStorage::FakeAttachment.new(
+        file: StringIO.new(data.to_json),
+        filename: "operation-#{digest}.json",
+        name: 'serialized',
+        id: id,
+        created_at: created_at,
+        record_type: 'DossierOperationLog'
+      )
+      ActiveStorage::DownloadableFile.pj_and_path(dossier_id, a)
+    end
 
     [serialized_dols, bill_ids]
   end

spec/models/dossier_spec.rb

@@ -1043,7 +1043,7 @@ describe Dossier do
   describe '#accepter!' do
     let(:dossier) { create(:dossier, :en_instruction, :with_individual) }
     let(:last_operation) { dossier.dossier_operation_logs.last }
-    let(:operation_serialized) { JSON.parse(last_operation.serialized.download) }
+    let(:operation_serialized) { last_operation.data }
     let!(:instructeur) { create(:instructeur) }
     let!(:now) { Time.zone.parse('01/01/2100') }
     let(:attestation) { Attestation.new }
@@ -1105,7 +1105,7 @@ describe Dossier do
   describe '#passer_en_instruction!' do
     let(:dossier) { create(:dossier, :en_construction, en_construction_close_to_expiration_notice_sent_at: Time.zone.now) }
     let(:last_operation) { dossier.dossier_operation_logs.last }
-    let(:operation_serialized) { JSON.parse(last_operation.serialized.download) }
+    let(:operation_serialized) { last_operation.data }
     let(:instructeur) { create(:instructeur) }
 
     before { dossier.passer_en_instruction!(instructeur: instructeur) }
@@ -1123,7 +1123,7 @@ describe Dossier do
   describe '#passer_automatiquement_en_instruction!' do
     let(:dossier) { create(:dossier, :en_construction, en_construction_close_to_expiration_notice_sent_at: Time.zone.now) }
     let(:last_operation) { dossier.dossier_operation_logs.last }
-    let(:operation_serialized) { JSON.parse(last_operation.serialized.download) }
+    let(:operation_serialized) { last_operation.data }
     let(:instructeur) { create(:instructeur) }
 
     before { dossier.passer_automatiquement_en_instruction! }
@@ -1300,7 +1300,7 @@ describe Dossier do
     it { expect(dossier.attestation).to be_nil }
     it { expect(dossier.termine_close_to_expiration_notice_sent_at).to be_nil }
     it { expect(last_operation.operation).to eq('repasser_en_instruction') }
-    it { expect(JSON.parse(last_operation.serialized.download)['author']['email']).to eq(instructeur.email) }
+    it { expect(last_operation.data['author']['email']).to eq(instructeur.email) }
     it { expect(DossierMailer).to have_received(:notify_revert_to_instruction).with(dossier) }
 
     after { Timecop.return }