Class: EventSource::Postgres::Write

Inherits:
Object
  • Object
show all
Includes:
Write
Defined in:
lib/event_source/postgres/write.rb

Instance Method Summary collapse

Instance Method Details

#configure(session: nil) ⇒ Object 



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# File 'lib/event_source/postgres/write.rb', line 8

def configure(session: nil)
  Put.configure(self, session: session)
end

#write(batch, stream_name, expected_version: nil) ⇒ Object 



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# File 'lib/event_source/postgres/write.rb', line 12

def write(batch, stream_name, expected_version: nil)
  logger.trace(tag: :write) { "Writing batch (Stream Name: #{stream_name}, Number of Events: #{batch.length}, Expected Version: #{expected_version.inspect})" }

  unless expected_version.nil?
    expected_version = ExpectedVersion.canonize(expected_version)
  end

  last_position = nil
  put.session.transaction do
    batch.each do |event_data|
      last_position = write_event_data(event_data, stream_name, expected_version: expected_version)

      unless expected_version.nil?
        expected_version += 1
      end
    end
  end

  logger.debug(tag: :write) { "Wrote batch (Stream Name: #{stream_name}, Number of Events: #{batch.length}, Expected Version: #{expected_version.inspect})" }

  last_position
end

#write_event_data(event_data, stream_name, expected_version: nil) ⇒ Object 



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# File 'lib/event_source/postgres/write.rb', line 35

def write_event_data(event_data, stream_name, expected_version: nil)
  logger.trace(tag: :write) { "Writing event data (Stream Name: #{stream_name}, Type: #{event_data.type}, Expected Version: #{expected_version.inspect})" }
  logger.trace(tags: [:data, :event_data, :write]) { event_data.pretty_inspect }

  put.(event_data, stream_name, expected_version: expected_version).tap do
    logger.debug(tag: :write) { "Wrote event data (Stream Name: #{stream_name}, Type: #{event_data.type}, Expected Version: #{expected_version.inspect})" }
    logger.debug(tags: [:data, :event_data, :write]) { event_data.pretty_inspect }
  end
end