Merge 9140ef7 into 40ca4c3

app/models/complete_moab.rb

@@ -20,6 +20,8 @@ class CompleteMoab < ApplicationRecord
 
   belongs_to :preserved_object, inverse_of: :complete_moabs
   belongs_to :moab_storage_root, inverse_of: :complete_moabs
+  belongs_to :from_moab_storage_root, class_name: 'MoabStorageRoot', required: false
+
   has_many :zipped_moab_versions, dependent: :restrict_with_exception, inverse_of: :complete_moab
 
   delegate :s3_key, to: :druid_version_zip

app/models/moab_storage_root.rb

@@ -4,6 +4,7 @@
 # Metadata about a Moab storage root (a POSIX file system which contains Moab objects).
 class MoabStorageRoot < ApplicationRecord
   has_many :complete_moabs, dependent: :restrict_with_exception
+  has_many :migrated_moabs, class_name: 'CompleteMoab', foreign_key: :from_moab_storage_root_id
   has_many :preserved_objects, through: :complete_moabs
   has_and_belongs_to_many :preservation_policies
 

app/services/storage_root_migration_service.rb

@@ -28,6 +28,7 @@ def to_root
   end
 
   def migrate_moab(moab)
+    moab.from_moab_storage_root = from_root
     moab.moab_storage_root = to_root
     moab.status = 'validity_unknown' # This will queue a CV.
     # Fate of this to be determined by https://github.com/sul-dlss/preservation_catalog/issues/1329

db/migrate/20200206163659_add_from_moab_storage_root_to_complete_moabs.rb

@@ -0,0 +1,6 @@
+class AddFromMoabStorageRootToCompleteMoabs < ActiveRecord::Migration[6.0]
+  def change
+    add_column :complete_moabs, :from_moab_storage_root_id, :bigint
+    add_foreign_key :complete_moabs, :moab_storage_roots, column: :from_moab_storage_root_id
+  end
+end

db/schema.rb

@@ -10,7 +10,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 2020_01_22_001712) do
+ActiveRecord::Schema.define(version: 2020_02_06_163659) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
@@ -28,6 +28,7 @@
     t.datetime "last_version_audit"
     t.datetime "last_archive_audit"
     t.string "status_details"
+    t.bigint "from_moab_storage_root_id"
     t.index ["created_at"], name: "index_complete_moabs_on_created_at"
     t.index ["last_archive_audit"], name: "index_complete_moabs_on_last_archive_audit"
     t.index ["last_checksum_validation"], name: "index_complete_moabs_on_last_checksum_validation"
@@ -118,6 +119,7 @@
   end
 
   add_foreign_key "complete_moabs", "moab_storage_roots"
+  add_foreign_key "complete_moabs", "moab_storage_roots", column: "from_moab_storage_root_id"
   add_foreign_key "complete_moabs", "preserved_objects"
   add_foreign_key "moab_storage_roots_preservation_policies", "moab_storage_roots"
   add_foreign_key "moab_storage_roots_preservation_policies", "preservation_policies"

spec/services/storage_root_migration_service_spec.rb

@@ -18,6 +18,7 @@
 
   let(:complete_moab3) { create(:complete_moab) }
 
+  # rubocop:disable RSpec/MultipleExpectations
   it 'migrates the storage root' do
     # Before migration
     expect(complete_moab1.moab_storage_root).to eq(complete_moab2.moab_storage_root)
@@ -30,8 +31,11 @@
     complete_moab2.reload
 
     expect(complete_moab1.moab_storage_root).to eq(to_storage_root)
+    expect(complete_moab1.from_moab_storage_root).to eq(from_storage_root)
     expect(complete_moab2.moab_storage_root).to eq(to_storage_root)
+    expect(complete_moab2.from_moab_storage_root).to eq(from_storage_root)
   end
+  # rubocop:enable RSpec/MultipleExpectations
 
   it 'resets field values' do
     described_class.new(from_storage_root.name, to_storage_root.name).migrate
@@ -53,5 +57,6 @@
     complete_moab3.reload
 
     expect(complete_moab3.moab_storage_root).to eq(orig_complete_moab3_storage_root)
+    expect(complete_moab3.from_moab_storage_root).to be_nil
   end
 end