tasks: add a task to migrate pjs of procedures in batches

lib/tasks/2019_03_13_migrate_pjs_to_champs.rake

@@ -1,8 +0,0 @@
-namespace :'2019_03_13_migrate_pjs_to_champs' do
-  task run: :environment do
-    procedure_id = ENV['PROCEDURE_ID']
-    service = PieceJustificativeToChampPieceJointeMigrationService.new
-    service.ensure_correct_storage_configuration!
-    service.convert_procedure_pjs_to_champ_pjs(Procedure.find(procedure_id))
-  end
-end

lib/tasks/pieces_justificatives.rake

@@ -0,0 +1,28 @@
+require Rails.root.join("lib", "tasks", "task_helper")
+
+namespace :pieces_justificatives do
+  task migrate_procedure_to_champs: :environment do
+    procedure_id = ENV['PROCEDURE_ID']
+    service = PieceJustificativeToChampPieceJointeMigrationService.new
+    service.ensure_correct_storage_configuration!
+    service.convert_procedure_pjs_to_champ_pjs(Procedure.find(procedure_id))
+  end
+
+  task migrate_procedures_range_to_champs: :environment do
+    if ENV['RANGE_START'].nil? || ENV['RANGE_END'].nil?
+      fail "RANGE_START and RANGE_END must be specified"
+    end
+    procedures_range = ENV['RANGE_START']..ENV['RANGE_END']
+
+    service = PieceJustificativeToChampPieceJointeMigrationService.new
+    service.ensure_correct_storage_configuration!
+    procedures_to_migrate = service.procedures_with_pjs_in_range(procedures_range)
+
+    procedures_to_migrate.find_each do |procedure|
+      rake_puts ''
+      rake_puts "Migrating procedure #{procedure.id}…"
+
+      service.convert_procedure_pjs_to_champ_pjs(procedure)
+    end
+  end
+end