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feat: add a way to redact specific keys from the struct #185

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feat: add a way to redact specific keys from the struct #185

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15 changes: 14 additions & 1 deletion lib/paper_trail/serializer.ex
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Original file line number Diff line number Diff line change
Expand Up @@ -103,7 +103,11 @@ defmodule PaperTrail.Serializer do
@spec serialize(nil | Ecto.Changeset.t() | struct()) :: nil | map()
def serialize(nil), do: nil
def serialize(%Ecto.Changeset{data: data}), do: serialize(data)
def serialize(%_schema{} = model), do: Ecto.embedded_dump(model, :json)

def serialize(%schema{} = model),
do:
Ecto.embedded_dump(model, :json)
|> redact_hash(schema)

@doc """
Dumps changes using Ecto fields
Expand Down Expand Up @@ -193,4 +197,13 @@ defmodule PaperTrail.Serializer do
end
end)
end

defp redact_hash(struct, schema) do
if function_exported?(schema, :redacted_keys, 0) do
struct
|> Map.drop(schema.redacted_keys)
else
struct
end
end
end