Packages
eventstore
0.13.1
1.4.8
1.4.7
1.4.6
1.4.4
1.4.3
1.4.2
1.4.1
1.4.0
1.3.2
1.3.1
1.3.0
1.2.3
1.2.2
1.2.1
1.2.0
1.1.0
1.0.3
1.0.2
1.0.1
1.0.0
1.0.0-rc.0
0.17.0
0.16.2
0.16.1
0.16.0
0.15.1
0.15.0
0.14.0
0.14.0-rc.0
0.13.2
0.13.1
0.13.0
0.12.1
0.12.0
0.11.0
0.11.0-rc.0
0.10.1
0.10.0
0.9.0
0.8.1
0.8.0
0.7.4
0.7.3
0.7.2
0.7.1
0.7.0
0.6.2
0.6.1
0.6.0
0.5.2
0.5.1
0.5.0
0.4.3
0.4.2
0.4.1
0.4.0
0.3.0
0.2.1
0.2.0
0.1.0
0.0.5
0.0.4
0.0.3
0.0.2
0.0.1
Event store using PostgreSQL for persistence.
Current section
Files
Jump to
Current section
Files
lib/event_store/writer.ex
defmodule EventStore.Writer do
@moduledoc false
alias EventStore.{
Publisher,
RecordedEvent,
Storage,
}
@doc """
Append the given list of recorded events to the stream.
Returns `:ok` on success, or `{:error, reason}` on failure.
"""
@spec append_to_stream(events :: list(RecordedEvent.t), stream_id :: non_neg_integer(), stream_uuid :: String.t) :: :ok | {:error, reason :: any()}
def append_to_stream([], _stream_id, _stream_uuid), do: :ok
def append_to_stream(events, stream_id, stream_uuid) do
case Storage.append_to_stream(stream_id, events) do
{:ok, assigned_event_numbers} ->
events
|> assign_event_numbers(assigned_event_numbers)
|> publish_events(stream_uuid)
:ok
{:error, _reason} = reply -> reply
end
end
defp assign_event_numbers(events, event_numbers) do
events
|> Enum.zip(event_numbers)
|> Enum.map(fn {event, event_number} ->
%RecordedEvent{event | event_number: event_number}
end)
end
defp publish_events(events, stream_uuid),
do: Publisher.notify_events(stream_uuid, events)
end