poc(batch_operation.purge): nettoie les batch terminé ou inutiles

app/jobs/cron/purge_stale_batch_operation_job.rb

@@ -0,0 +1,8 @@
+class Cron::PurgeStaleBatchOperationJob < Cron::CronJob
+  self.schedule_expression = "every 5 minutes"
+
+  def perform
+    BatchOperation.stale.destroy_all
+    BatchOperation.stuck.destroy_all
+  end
+end

app/models/batch_operation.rb

@@ -26,6 +26,19 @@ class BatchOperation < ApplicationRecord
 
   validates :operation, presence: true
 
+  RETENTION_DURATION = 4.hours
+  MAX_DUREE_GENERATION = 24.hours
+
+  scope :stale, lambda {
+    where.not(finished_at: nil)
+      .where('updated_at < ?', (Time.zone.now - RETENTION_DURATION))
+  }
+
+  scope :stuck, lambda {
+    where(finished_at: nil)
+      .where('updated_at < ?', (Time.zone.now - MAX_DUREE_GENERATION))
+  }
+
   def dossiers_safe_scope(dossier_ids = self.dossier_ids)
     query = Dossier.joins(:procedure)
       .where(procedure: { id: instructeur.procedures.ids })
@@ -60,6 +73,7 @@ class BatchOperation < ApplicationRecord
       values = []
       values.push([arel_table[:run_at], Time.zone.now]) if called_for_first_time?
       values.push([arel_table[:finished_at], Time.zone.now]) if called_for_last_time?
+      values.push([arel_table[:updated_at], Time.zone.now])
       if success
         values.push([arel_table[:success_dossier_ids], Arel::Nodes::NamedFunction.new('array_append', [arel_table[:success_dossier_ids], dossier.id])])
         values.push([arel_table[:failed_dossier_ids], Arel::Nodes::NamedFunction.new('array_remove', [arel_table[:failed_dossier_ids], dossier.id])])

spec/factories/batch_operation.rb

@@ -4,6 +4,8 @@ FactoryBot.define do
       invalid_instructeur { nil }
     end
 
+    association :instructeur
+
     trait :archiver do
       operation { BatchOperation.operations.fetch(:archiver) }
       after(:build) do |batch_operation, evaluator|

spec/models/batch_operation_spec.rb

@@ -170,4 +170,19 @@ describe BatchOperation, type: :model do
       end
     end
   end
+
+  describe 'stale' do
+    let(:finished_at) { 6.hours.ago }
+    let(:staled_batch_operation) { create(:batch_operation, operation: :archiver, finished_at: 2.days.ago, updated_at: 2.days.ago) }
+    it 'finds stale jobs' do
+      expect(BatchOperation.stale).to match_array(staled_batch_operation)
+    end
+  end
+
+  describe 'stuck' do
+    let(:stuck_batch_operation) { create(:batch_operation, operation: :archiver, finished_at: nil, updated_at: 2.days.ago) }
+    it 'finds stale jobs' do
+      expect(BatchOperation.stuck).to match_array(stuck_batch_operation)
+    end
+  end
 end