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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: nil,
source_version: nil,
source_type: nil,
data: nil,
metadata: nil,
created_at: nil
@type t :: %SnapshotData{
source_uuid: String.t,
source_version: non_neg_integer,
source_type: String.t,
data: binary,
metadata: binary,
created_at: NaiveDateTime.t
}
def serialize(%SnapshotData{data: data, metadata: metadata} = snapshot, serializer) do
%SnapshotData{snapshot |
data: serializer.serialize(data),
metadata: serializer.serialize(metadata)
}
end
def deserialize(%SnapshotData{source_type: source_type, data: data, metadata: metadata} = snapshot, serializer) do
%SnapshotData{snapshot |
data: serializer.deserialize(data, type: source_type),
metadata: serializer.deserialize(metadata, [])
}
end
end