grape

Gitlab::Database::MigrationHelpers#bulk_queue_background_migration_jobs_by_range

Bulk queues background migration jobs for an entire table, batched by ID range.
"Bulk" meaning many jobs will be pushed at a time for efficiency.
If you need a delay interval per job, then use `queue_background_migration_jobs_by_range_at_intervals`.

model_class - The table being iterated over
job_class_name - The background migration job class as a string
batch_size - The maximum number of rows per job

Example:

    class Route < ActiveRecord::Base
      include EachBatch
      self.table_name = 'routes'
    end

    bulk_queue_background_migration_jobs_by_range(Route, 'ProcessRoutes')

Where the model_class includes EachBatch, and the background migration exists:

    class Gitlab::BackgroundMigration::ProcessRoutes
      def perform(start_id, end_id)
        # do something
      end
    end

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