Module: ActiveStorage::DBServiceRails70

Included in:
Service::DBService
Defined in:
lib/active_storage/service/db_service_rails70.rb

Instance Method Summary collapse

Instance Method Details

#compose(source_keys, destination_key) ⇒ Object 



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# File 'lib/active_storage/service/db_service_rails70.rb', line 5

def compose(source_keys, destination_key, **)
  buffer = nil
  comment = "DBService#compose"
  source_keys.each do |source_key|
    record = ::ActiveStorageDB::File.annotate(comment).select(:data).find_by(ref: source_key)
    raise ActiveStorage::FileNotFoundError unless record

    if buffer
      buffer << record.data
    else
      buffer = +record.data
    end
  end
  ::ActiveStorageDB::File.create!(ref: destination_key, data: buffer) if buffer
end