Module: Sandthorn::AggregateRootSnapshot

Defined in:
lib/sandthorn/aggregate_root_snapshot.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#aggregate_snapshot ⇒ Object (readonly)

Returns the value of attribute aggregate_snapshot.



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# File 'lib/sandthorn/aggregate_root_snapshot.rb', line 3

def aggregate_snapshot
  @aggregate_snapshot
end

Instance Method Details

#aggregate_snapshot! ⇒ Object 



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# File 'lib/sandthorn/aggregate_root_snapshot.rb', line 5

def aggregate_snapshot!

  if @aggregate_events.count > 0
    raise "Can't take snapshot on object with unsaved events"
  end

  @aggregate_snapshot = {
    :event_name => "aggregate_set_from_snapshot",
    :event_args => [self],
    :aggregate_version => @aggregate_current_event_version
  }
end

#save_snapshot ⇒ Object 



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# File 'lib/sandthorn/aggregate_root_snapshot.rb', line 18

def save_snapshot
  raise "No snapshot has been created!" unless @aggregate_snapshot
  @aggregate_snapshot[:event_data] = Sandthorn.serialize @aggregate_snapshot[:event_args]
  @aggregate_snapshot[:event_args] = nil
  Sandthorn.save_snapshot @aggregate_snapshot, @aggregate_id, self.class.name
  @aggregate_snapshot = nil
end