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eventstore
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Event store using PostgreSQL for persistence.
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lib/event_store/snapshots/snapshot_data.ex
defmodule EventStore.Snapshots.SnapshotData do
@moduledoc """
Snapshot data.
"""
alias EventStore.Snapshots.SnapshotData
defstruct [:source_uuid, :source_version, :source_type, :data, :metadata, :created_at]
@type t :: %SnapshotData{
source_uuid: String.t(),
source_version: non_neg_integer,
source_type: String.t(),
data: binary,
metadata: binary,
created_at: DateTime.t()
}
def serialize(%SnapshotData{} = snapshot, serializer) do
%SnapshotData{data: data, metadata: metadata} = snapshot
%SnapshotData{
snapshot
| data: serializer.serialize(data),
metadata: serializer.serialize(metadata)
}
end
def deserialize(%SnapshotData{} = snapshot, serializer) do
%SnapshotData{source_type: source_type, data: data, metadata: metadata} = snapshot
%SnapshotData{
snapshot
| data: serializer.deserialize(data, type: source_type),
metadata: serializer.deserialize(metadata, [])
}
end
end