Class: Gitlab::BackgroundMigration::BackfillNamespacesRedirectRoutesNamespaceId

Inherits:
BatchedMigrationJob
  • Object
show all
Defined in:
lib/gitlab/background_migration/backfill_namespaces_redirect_routes_namespace_id.rb

Constant Summary

Constants inherited from BatchedMigrationJob

Gitlab::BackgroundMigration::BatchedMigrationJob::DEFAULT_FEATURE_CATEGORY, Gitlab::BackgroundMigration::BatchedMigrationJob::MINIMUM_PAUSE_MS

Constants included from Database::DynamicModelHelpers

Database::DynamicModelHelpers::BATCH_SIZE

Instance Method Summary collapse

Methods inherited from BatchedMigrationJob

#batch_metrics, cursor, cursor?, cursor_columns, feature_category, #filter_batch, generic_instance, health_context_tables, #initialize, job_arguments, job_arguments_count, operation_name, scope_to, tables_to_check_for_vacuum

Methods included from Database::DynamicModelHelpers

define_batchable_model, #each_batch, #each_batch_range

Constructor Details

This class inherits a constructor from Gitlab::BackgroundMigration::BatchedMigrationJob

Instance Method Details

#perform ⇒ Object 



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# File 'lib/gitlab/background_migration/backfill_namespaces_redirect_routes_namespace_id.rb', line 11

def perform
  each_sub_batch do |sub_batch|
    redirect_route_with_source = sub_batch
      .joins('inner join namespaces on redirect_routes.source_id = namespaces.id')
      .select(:id, 'namespaces.id as source_namespace_id')

    connection.execute(<<~SQL)
      WITH redirect_route_with_source AS (#{redirect_route_with_source.to_sql})
      UPDATE redirect_routes
      SET namespace_id = redirect_route_with_source.source_namespace_id
      FROM redirect_route_with_source
      WHERE redirect_routes.id = redirect_route_with_source.id
    SQL
  end
end