Class: Gitlab::BackgroundMigration::FixNonExistingTimelogUsers

Inherits:
BatchedMigrationJob show all
Defined in:
lib/gitlab/background_migration/fix_non_existing_timelog_users.rb

Constant Summary collapse

GHOST_USER_TYPE = 
5

Constants inherited from BatchedMigrationJob

BatchedMigrationJob::DEFAULT_FEATURE_CATEGORY, 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/fix_non_existing_timelog_users.rb', line 11

def perform
  ghost_id = Users::Internal.ghost.id

  each_sub_batch do |sub_batch|
    first, last = sub_batch.pick(Arel.sql('min(id), max(id)'))
    query = <<~SQL
      UPDATE timelogs
      SET user_id = #{ghost_id}
      WHERE timelogs.id BETWEEN #{first} AND #{last}
      AND NOT EXISTS (SELECT 1 FROM users WHERE users.id = timelogs.user_id)
    SQL

    sub_batch.connection.execute(query)
  end
end