Class: LooseForeignKeys::ProcessDeletedRecordsService

Inherits:
Object
  • Object
show all
Defined in:
app/services/loose_foreign_keys/process_deleted_records_service.rb

Constant Summary collapse

BATCH_SIZE = 
1000

Instance Method Summary collapse

Constructor Details

#initialize(connection:, modification_tracker: LooseForeignKeys::ModificationTracker.new) ⇒ ProcessDeletedRecordsService

Returns a new instance of ProcessDeletedRecordsService.



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# File 'app/services/loose_foreign_keys/process_deleted_records_service.rb', line 7

def initialize(connection:, modification_tracker: LooseForeignKeys::ModificationTracker.new)
  @connection = connection
  @modification_tracker = modification_tracker
end

Instance Method Details

#execute ⇒ Object 



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# File 'app/services/loose_foreign_keys/process_deleted_records_service.rb', line 12

def execute
  raised_error = false
  tracked_tables.cycle do |table|
    records = load_batch_for_table(table)

    if records.empty?
      tracked_tables.delete(table)
      next
    end

    break if modification_tracker.over_limit?

    loose_foreign_key_definitions = Gitlab::Database::LooseForeignKeys.definitions_by_table[table]

    next if loose_foreign_key_definitions.empty?

    LooseForeignKeys::BatchCleanerService
      .new(
        parent_table: table,
        loose_foreign_key_definitions: loose_foreign_key_definitions,
        deleted_parent_records: records,
        modification_tracker: modification_tracker)
      .execute

    break if modification_tracker.over_limit?
  end

  ::Gitlab::Metrics::LooseForeignKeysSlis.record_apdex(
    success: !modification_tracker.over_limit?,
    db_config_name: db_config_name
  )

  modification_tracker.stats
rescue StandardError
  raised_error = true
  raise
ensure
  ::Gitlab::Metrics::LooseForeignKeysSlis.record_error_rate(
    error: raised_error,
    db_config_name: db_config_name
  )
end