lib/gitlab/background_migration/batching_strategies/backfill_issue_work_item_type_batching_strategy.rb


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# frozen_string_literal: true

module Gitlab
  module BackgroundMigration
    module BatchingStrategies
      # Batching class to use for back-filling issue's work_item_type_id for a single issue type.
      # Batches will be scoped to records where the foreign key is NULL and only of a given issue type
      #
      # If no more batches exist in the table, returns nil.
      class BackfillIssueWorkItemTypeBatchingStrategy < PrimaryKeyBatchingStrategy
        def apply_additional_filters(relation, job_arguments:)
          issue_type = job_arguments.first

          relation.where(issue_type: issue_type)
        end
      end
    end
  end
end