Cleanup pipeline build stage background migration

1 files changed, 28 insertions, 0 deletions

diff --git a/db/migrate/20180420010616_cleanup_build_stage_migration.rb b/db/migrate/20180420010616_cleanup_build_stage_migration.rb
new file mode 100644
index 00000000000..0342695ec3d
--- /dev/null
+++ b/db/migrate/20180420010616_cleanup_build_stage_migration.rb
@@ -0,0 +1,28 @@
+class CleanupBuildStageMigration < ActiveRecord::Migration
+  include Gitlab::Database::MigrationHelpers
+
+  DOWNTIME = false
+
+  disable_ddl_transaction!
+
+  class Build < ActiveRecord::Base
+    include EachBatch
+
+    self.table_name = 'ci_builds'
+    self.inheritance_column = :_type_disabled
+  end
+
+  def up
+    Gitlab::BackgroundMigration.steal('MigrateBuildStage')
+
+    Build.where('stage_id IS NULL').each_batch(of: 50) do |batch|
+      range = batch.pluck('MIN(id)', 'MAX(id)').first
+
+      Gitlab::BackgroundMigration::MigrateBuildStage.new.perform(*range)
+    end
+  end
+
+  def down
+    # noop
+  end
+end