Add UUID Storage to Project

2 files changed, 42 insertions, 0 deletions

diff --git a/db/migrate/20170802013652_add_storage_fields_to_project.rb b/db/migrate/20170802013652_add_storage_fields_to_project.rb
new file mode 100644
index 00000000000..269103cd472
--- /dev/null
+++ b/db/migrate/20170802013652_add_storage_fields_to_project.rb
@@ -0,0 +1,39 @@
+# See http://doc.gitlab.com/ce/development/migration_style_guide.html
+# for more information on how to write migrations for GitLab.
+
+class AddStorageFieldsToProject < ActiveRecord::Migration
+  include Gitlab::Database::MigrationHelpers
+
+  # Set this constant to true if this migration requires downtime.
+  DOWNTIME = false
+
+  # When a migration requires downtime you **must** uncomment the following
+  # constant and define a short and easy to understand explanation as to why the
+  # migration requires downtime.
+  # DOWNTIME_REASON = ''
+
+  # When using the methods "add_concurrent_index", "remove_concurrent_index" or
+  # "add_column_with_default" you must disable the use of transactions
+  # as these methods can not run in an existing transaction.
+  # When using "add_concurrent_index" or "remove_concurrent_index" methods make sure
+  # that either of them is the _only_ method called in the migration,
+  # any other changes should go in a separate migration.
+  # This ensures that upon failure _only_ the index creation or removing fails
+  # and can be retried or reverted easily.
+  #
+  # To disable transactions uncomment the following line and remove these
+  # comments:
+  disable_ddl_transaction!
+
+  def up
+    # rubocop:disable Migration/AddColumnWithDefaultToLargeTable
+    add_column :projects, :uuid, :uuid
+    add_column_with_default :projects, :storage_version, :integer, default: 0, limit: 1
+    add_concurrent_index :projects, :uuid
+  end
+
+  def down
+    remove_column :projects, :uuid
+    remove_column :projects, :storage_version
+  end
+end
diff --git a/db/schema.rb b/db/schema.rb
index c31bff3a8f2..dcd9532e4be 100644
--- a/db/schema.rb
+++ b/db/schema.rb
@@ -1208,6 +1208,8 @@ ActiveRecord::Schema.define(version: 20170820100558) do
     t.datetime "last_repository_updated_at"
     t.string "ci_config_path"
     t.text "delete_error"
+    t.uuid "uuid"
+    t.integer "storage_version", limit: 2, default: 0, null: false
   end
 
   add_index "projects", ["ci_id"], name: "index_projects_on_ci_id", using: :btree
@@ -1224,6 +1226,7 @@ ActiveRecord::Schema.define(version: 20170820100558) do
   add_index "projects", ["pending_delete"], name: "index_projects_on_pending_delete", using: :btree
   add_index "projects", ["runners_token"], name: "index_projects_on_runners_token", using: :btree
   add_index "projects", ["star_count"], name: "index_projects_on_star_count", using: :btree
+  add_index "projects", ["uuid"], name: "index_projects_on_uuid", using: :btree
   add_index "projects", ["visibility_level"], name: "index_projects_on_visibility_level", using: :btree
 
   create_table "protected_branch_merge_access_levels", force: :cascade do |t|